SOHO-LASCO Comet Reports for 200205

possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date  Time  x  y

20020501 1726 304 1012

20020501 1806 324  984

20020501 1826 334  970



Regards, Rainer

UPDATE possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date     Time  x    y    1024 x 1024

20020501 1726 304 1012   behind time stamp

20020501 1806 324  984    326    984

20020501 1826 334  970    335    970

20020501 1850 invisible   invisible



This is not much, but I think its real.

It looks like a dissolving Kreutz sungrazer, not like noise.

First b/w image shows a small comet with head and short tail.

Next two images show a small, shrinking cloud (coma).



Regards, Rainer

Hi all,

	Haven't yet checked on R. Kracht's most recent claim.

I've added a link on the "Found Something?" page to Rainer's pages

showing the trajectories of the other comet groups.



Confirming two recent claims by R. Kracht in C2 images.



#COMMENT: COMET SOHO-433

# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  5.28 2000/05/06 05:26:05  63.1   C2  10   128.0   700.0

  5.42 2000/05/06 05:50:05  60.0   C2  10   129.0   726.0

  5.52 2000/05/06 06:06:05  58.2   C2  10   129.0   742.0

  5.64 2000/05/06 06:26:05  55.9   C2  10   130.0   763.0

  5.80 2000/05/06 06:50:06  53.3   C2  10   132.0   788.0

  6.05 2000/05/06 07:26:48  49.8   C2  10   134.0   824.0

  6.32 2000/05/06 08:06:05  45.9   C2  10   140.0   864.0

  6.45 2000/05/06 08:26:05  44.3   C2  10   143.0   882.0

  6.71 2000/05/06 09:06:05  41.0   C2  10   151.0   919.0

  6.83 2000/05/06 09:26:05  39.5   C2  10   155.0   936.0

  6.98 2000/05/06 09:50:05  37.7   C2  10   161.0   957.0

  7.23 2000/05/06 10:26:09  35.1   C2  10   170.0   989.0

  7.35 2000/05/06 10:50:05  33.5   C2  10   178.0  1007.0

  7.44 2000/05/06 11:06:05  32.5   C2  10   183.0  1019.0



and



#COMMENT: COMET SOHO-434

# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  4.47 2000/07/04 15:50:06 333.9   C2  10   670.0   826.0

  4.57 2000/07/04 16:06:05 337.1   C2  10   655.0   842.0

  4.69 2000/07/04 16:26:05 340.4   C2  10   639.0   859.0

  4.84 2000/07/04 16:50:06 344.3   C2  10   618.0   879.0

  4.98 2000/07/04 17:06:06 346.8   C2  10   604.0   894.0

  5.14 2000/07/04 17:26:05 349.7   C2  10   587.0   911.0

  5.32 2000/07/04 17:50:05 353.1   C2  10   565.0   930.0





A claim by X.-M. Zhou is being added to our list of denied comets.

This is a list we are maintaining of objects which might be comets

but don't meet our minimum criteria.



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  6.10 2002/04/26 10:26:05 190.0   C2  10   595.0    14.0

  5.88 2002/04/26 10:50:05 191.6   C2  10   605.0    35.0

  5.73 2002/04/26 11:06:05 192.8   C2  10   612.0    49.0

Hi All,



I can confirm Rainer's C2 comet based on the follow-up

1024 x 1024 images.  It's very dim, and fading, but it's

real.  Coordinates to follow in next message.  --Rob

UPDATE Kreutz sungrazer in C2 images

1024 x 1024  0,0 in upper left corner



Date     Time  x    y    

20020501 1726 304 1012   from enlarged b/w image

20020501 1806 326  984

20020501 1826 335  970 

20020501 1850 349  953 ?

20020501 1906 359  940

20020501 1926 369  926



Sebastian pointed out that it is still visible in the

images from 1906 and 1926.



 Regards, Rainer

Follow-up on dim, diffuse comet in C2.  1024 x 1024

coords (0,0 upper left):



05/01 18:06 326, 983

      18:26 336, 970

      18:50 350, 951 (tough)      19:06 359, 940

      19:26 369, 926



Congrats Rainer!  --Rob

Hello all!



I has checked object on program.

This certainly comet, though and much diffuse.



time/ x / y / brightness (0-255)

1806 325 38=985 /78

1826 336 53=970 /75

1850 350 71=952 /79

1906 360 83=940 /84

1926 371 98=925 /85



length of way 75.604

velocity of object           = 0.945 /average = 0.900/

velocity of object on axis X = 0.575 /average = 0.543/

velocity of object on axis Y = 0.750 /average = 0.732/



Congrats Rainer!



Alexander Mimeev

I agree.  That makes it SOHO-435.  R. Kracht's claim for a C2

comet on May Day is confirmed officially.  Rough positions given

below.



Doug

#COMMENT: COMET SOHO-435

# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  6.56 2002/05/01 17:26:05 157.6   C2  10   304.0    12.0

  6.17 2002/05/01 18:06:06 158.6   C2  10   325.0    39.0

  5.96 2002/05/01 18:26:05 159.2   C2  10   336.0    53.0

  5.70 2002/05/01 18:50:05 159.9   C2  10   349.0    71.0

  5.53 2002/05/01 19:06:05 160.5   C2  10   359.0    83.0

  5.33 2002/05/01 19:26:06 161.2   C2  10   369.0    97.0

  5.08 2002/05/01 19:50:05 162.2   C2  10   383.0   114.0

 5  332 343  20020502 1042  3855522   8615622

 6  355 382  20020502 0942  3855462   1.222E7

 7  372 441  20020502 0842  3855402   1.691E7



These positions from C3 from upper left to Sun



I think this is probably noise though.

Announcing the SOHO-500 contest.



See http://sohowww.nascom.nasa.gov/comet.html



Deadline is midnight EDT May 31.



Doug

Possible non Kreutz comet in C2



positions 1024x1024 (0,0) top-left corner



2002/05/02



12:06 (572, ?)

12:26 (573,932)

12:50 (575,930)

13:27 (578,926)





Regards,



Toni Scarmato

Not groupable comet in LASCO C3 images



Date: May 02, 2002



Positions:



Time     (x,y)

13:42   ...,...

14:18   ...,...

14:42   557,939

15:18   559,937



More on this soon.



Sebastian Hoenig

I withdraw my report. It was two stars appearing very diffuse in

the images.



Regards and Sorry, Sebastian (ill but fighting against AOL and

the DSL network)

Regarding my last report, the object seem a

combination between a faint star and noise.





Regards,



Toni Scarmato

Possible very dim comet in C2 earlier today.  Here

are approximate positions (1024x1024, 0,0 in upper left):



0502 14:50  329, 943

     15:06  334, 919

     15:26  341, 889

     15:50  350, 853



--Rob

possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date  Time  x  y

20020503 1206 278 986

20020503 1226 288 974

20020503 1250 300 958



Regards, Rainer

UPDATE possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date     Time  x   y

20020503 1126 256 1012

20020503 1206 278  986

20020503 1226 288  974

20020503 1250 300  958



looks like another faint Kreutz sungrazer



Regards, Rainer

UPDATE Kreutz sungrazer in C2 images of 2002 May 03

1024*1024  0,0 in upper left corner



Time  x   y

1126 257 1013

1150 269  997

1206 278  987

1226 289  974

1250 301  958

1327 321  932

1350 335  916



it is now visible in seven 1024 x 1024 images



 Regards, Rainer

Possible sungrazer in Lasco C3 images



Date: 3 May 2002



Here are approximate positions (1024x1024):

Time     (x,y)

1518      650,525

1554      ---,---

1618      693,450

1642      695,446



Best,

Mark Ledingham



  

Mark,



it seems unlikely that your object is real, since the velocities

from 15:18 to 16:18 are 43 pixel/hr in x and 75 pixel/hr in y, 

while from 16:18 to 16:42 the velocities are 4 pixel/hr in x and 

8 pixel/hr in y. This is physically impossible. 



Kind regards, Maik

Possible diffuse and extremely dim Kreutz comet in C2

frames beginning at 2002/05/03 18:50.  It is just

barely detectable in 4 consecutive frames, and moves

in the correct direction at a reasonable (and constant)

velocity.  1024x1024 approximate coordinates

(0,0 in upper left):



2002/05/03 18:50  286, 992 (mostly obscurred by "8")

           19:27  302, 967 (very tough)

           19:50  311, 952

           20:06  319, 941



Perhaps someone with movie-cycling ability can check

this out to see if it is real.  Thanks!  --Rob

Possible sungrazer in C3 images - 20020504_1218 UT





 ****** NOTE ******

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,477 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

--------------------------------------------

20020504_1218.gif  512 x 512    197, 315      

20020504_1242.gif  512 x 512    199, 314

20020504_1342.gif  512 x 512    199, 312

20020504_1418.gif  512 x 512    200, 309

      

----------------

Michael Boschat

Disregard my post of May 04 2002 12:09:47



 I downloaded other images but can't

see anything. That solar streamer near

the strut is a tad bright and hard to see 

if the object continues.



Mike

Meyer group comet in archival C2 images of 1998 November 03.



C2, 1024x1024, 0,0 upper left



22037387.fts  02:18  969, 452

22037392.fts  03:18  958, 382

22037397.fts  04:18  944, 313

22037402.fts  05:18  927, 246

22037407.fts  06:18  907, 182

22037412.fts  07:18  884, 122

22037413.fts  07:54  868,  88

22037414.fts  08:26  854,  60

22037419.fts  09:18  826,  16



small object on the track of the Meyer group comets



 Regards, Rainer

Comet or noise(?) in Lasco C3 images.

Lower right. A small tail seems to appear

at 1442 GMT.



Date: 5 May 2002



Here are approximate positions (1024x1024):

Time     (x,y)

1342     555,156

1418     552,148

1442     551,146

1518     ---,---



Regards,

Mark Ledingham

Kreutz group comet in archival C2 images of 1998 November 08.



C2, 1024x1024, 0,0 upper left



22037795.fts  07:26  489,1001

22037796.fts  07:54  474, 978

22037797.fts  08:18  461, 959

22037798.fts  08:54  442, 928

22037799.fts  09:18  430, 908





small object on the track of the Kreutz group comets



 Regards, Rainer

seems to have a small tail, not sure.

Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  328 432  20020505 1842  3860322   1.459E7

   1  332 433  20020505 2142  3860502   1.479E7

   2  334 434  20020505 2318  3860598   1.493E7

   3  338 433  20020506 0218  3860778   1.500E7

   4  345 434  20020506 0818  3861138   1.532E7



regards



Arturo Eliserio

Dear Arturo,

Object which you observed it's a star. Look Y coordinates. Changed only slight. Also

seems to long visible for a real comet...

Best regards,

Maciej

Possible comet in C2

positions 512x512 (0,0) top-left corner





2002/05/06



11:26 (48,480)

11:50 (50,474)

12:06 (52,470)





I am waiting other images to confirm





Regards,



Toni Scarmato

Regarding my last report, the object

seem visible on image at 12:26 (56,462)

and appear faint and diffuse.





Regards,



Toni Scarmato

Hi Rainer, 

I read your report dated May 6 2002 16:58:14 about a possible Kreutz comet from 1998/11/08.

I have reported this one on the Doug web page the November 22 2000 02:39:31, but Doug has not been able to confirm it. See his answer the November 27 2000 16:42:27 on the archive page.



Regards

Xavier Leprette

Thanks Xavier, I think that my find is an (unofficial) confirmation

of your comet.



 Regards, Rainer

Hi all,

	I haven't had a chance to check any of the reports

from the weekend yet.  As if I didn't have any time before.

Doing this SOHO-500 contest is just taking more of my time.

We've upgraded the prize package and there will be a second

place prize as well.  Expect a detailed announcement in the

next few days.



Doug

Meyer group comet in archival C2 images of 1998 November 28.



C2, 1024x1024, 0,0 upper left



22038240.fts  02:30  734, 222

22038245.fts  03:30  753, 162

22038246.fts  03:54  759, 139

22038247.fts  04:30  769, 106

22038248.fts  05:30  783,  56

22038249.fts  05:54  786,  37

22038250.fts  06:30  792,  10



moderately bright object on the track of the Meyer group comets

should be visible in C3 also



 Regards, Rainer

is this something? seen at LASCO C2,right side of the sun, also it seems that another object is right behind following the same path.  Does not looks like meteorite.



Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  409 318  20020506 1050  3861290   2900174

   1  409 318  20020506 1050  3861290   2900174

   2  404 309  20020506 1106  3861306   2762740

   3  379 292  20020506 1126  3861326   2259416

   4  355 295  20020506 1150  3861350   1887432



regards



A. Eliserio

On image EIT304 at 19:19 there is a comet-like object in the upper

left corner with a nucleus and a tail.

A correction to the previous report.  The comet-like object is

in the middle right of the image.





Thanks

Moving along the lower part of the screen there is an object begining on 05/03/2002 in the lower left hand side of the screen and and finishing on 05/03/2002 in the lower right side. 

Re: Reports by Travis, Chris and Arturo:



Travis - Comets are found on C2 and C3 images. The EIT images are 

too near to the sun. This is just noise. And please do post

coordinates (and more than only one, at least four) as is advised - no one will be able to find your

object without coordinates.



Chris - Please post coordinates as is advised for reporting 

suspect comets. You haven't even posted the camera (C2 or C3). 

Additionally, all stars are moving from left to right - did you

have checked for this possibility.



Arturo - Your object moves not steadily; just calculate the hourly

velocity in pixel/hour between your positions. They have to be

nealy uniform. But yours are extremely increasing. This is not

expected for a real object. (Besides, never ever you can see

meteors - meteorites are only found after a fall - in the images.

The streaks and dots are just noise of high energetic particels

hitting the detector.)



Please look at common mistakes and already found comets to get a 

feeling what you have to look for. Besides these pages I also 

recommend http://www.sungrazer.org/ for a step to step guide.



I hope these hints help. Maik

Kreutz group comet in archival C2 images of 7 Dec 1998



1024x1024, 0,0 upper left



22038742.fts  00:54  238, 1011

      43.fts  01:31  238,  979

      44.fts  01:54  238,  961

      45.fts  02:30  238,  932

      46.fts  02:54  239,  911

      47.fts  03:30  240,  879



Maik

Hi, when looking at the current real time video of LASCO C2 I thought I saw what I believe to be a comet. Perhaps I'm wrong, please validate for me. Latest 25 sgf Images (approx. 4500 kb) as of Tue May 7 09:14:06 GMT 2002, images labeled 2002/05/06 800-1700. In the upper right corner of the image is an object that appears in all images, appears to move from left to right. Here are the requested points:



Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  340 423  20020506 0926  3861206   3287337

   1  343 423  20020506 0950  3861230   3311027

   2  344 425  20020506 1006  3861246   3349603

   3  346 425  20020506 1026  3861266   3365742

   4  349 424  20020506 1050  3861290   3375370



Please let me know! Thanks! Chris

Chris,



this is a star. Stars move from left to right with only slightly 

changing Y coordinates.



Maik

There acctually appears to be two comet's in LASCO C3 from 2002/05/07 00:42 they are both in the lower hemishpere of the picture. One approximatly 1.5 inches below the sun in 1280x1024 resoution with a trajectory directly into the sun and the second appears to be about 1.5 inches below the first with a trajectory around the lefthand side of the sun. I have put up a version of this image with these to susspected comets on my website at http://ucsu.colorado.edu/~ryanp/pictures/SOHO/20020507_0042_c3.gifthe original is at http://ucsu.colorado.edu/~ryanp/pictures/SOHO/20020507_0042_c3_org.gif Well take a look and tell me if I'm right :).



Paul Ryan

xxx@xxx

Paul,



these are cosmic ray hits. Please look for common mistakes and the

reporting format.



Maik

We have updated the page regarding the comet contest to reflect

the new prizes.  First place and second place both do quite well.



Doug

I saw that streak, like if it's tail changed direction because of solar wind





Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  405 489  20020506 1527  3861567   4834387

   1  405 490  20020506 1606  3861606   4848931

   2  406 490  20020506 1626  3861626   4858224

   3  415 489  20020506 1706  3861666   4929527

I forgot this: LASCO C2

Possible comet in real-time C2:



7-May-2002, 512x512, (x=0,y=0) upper-left

           

06:06 - (122,511), faint

06:26 - (123,506)

06:50 - (123,500)



Awaiting further images to confirm.



--Dwight "DJ" Hanson

I've checked all of the recent posts up to 15:00 local time.

First, let me comment that as expected, there are a lot of

newbies posting.  I'm glad to see you, but please take the time

to watch the data for a few days to learn about the various

quirks.  Also, when you post positions, please tell me which image

size you used.



I have confirmed 3 claims, and there are 2 additional claims

still outstanding.



  Date   Tele.   Discoverer   Status

-------------------------------------

 020503   C2      R. Kracht    Pending

 020503   C2      R. Kracht    Confirmed

 981108   C2      X. Leprette  Pending

 981128  C2,C3    R. Kracht    Confirmed

 981207   C2      M. Meyer     Confirmed

 

Positions below:



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  6.85 2002/05/03 11:26:05 153.2   C2  10   256.0     8.0

  6.61 2002/05/03 11:50:05 153.5   C2  10   268.0    25.0

  6.44 2002/05/03 12:06:06 153.9   C2  10   277.0    36.0

  6.25 2002/05/03 12:26:06 154.4   C2  10   288.0    48.0

  6.01 2002/05/03 12:50:05 154.9   C2  10   301.0    64.0



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  7.13 1998/11/03 09:18:10 318.9   C2  10   825.0  1007.0

  7.03 1998/11/03 08:54:06 316.8   C2  10   838.0   988.0

  6.89 1998/11/03 08:25:36 314.1   C2  10   854.0   962.0

  6.74 1998/11/03 07:54:05 311.3   C2  10   867.0   935.0

  6.56 1998/11/03 07:18:10 307.7   C2  10   883.0   901.0

  6.46 1998/11/03 06:56:41 305.5   C2  10   892.0   880.0

  6.17 1998/11/03 05:54:05 298.5   C2  10   915.0   816.0

  6.01 1998/11/03 05:18:08 294.0   C2  10   927.0   776.0

  5.92 1998/11/03 04:54:07 291.0   C2  10   934.0   750.0

  5.81 1998/11/03 04:18:08 286.3   C2  10   944.0   710.0

  5.74 1998/11/03 03:54:05 282.9   C2  10   950.0   682.0

  5.67 1998/11/03 03:18:08 277.9   C2  10   958.0   641.0

  5.63 1998/11/03 02:56:45 274.7   C2  10   962.0   615.0

  5.61 1998/11/03 02:18:09 269.1   C2  10   969.0   570.0



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  5.84 1998/11/08 07:25:32 168.2   C2  10   487.0    22.0

  5.59 1998/11/08 07:54:05 166.3   C2  10   473.0    44.0

  5.37 1998/11/08 08:18:05 164.6   C2  10   461.0    64.0

  5.05 1998/11/08 08:54:05 161.5   C2  10   442.0    94.0

  4.83 1998/11/08 09:18:06 159.2   C2  10   429.0   115.0



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  6.95 1998/11/28 06:30:07 331.4   C2  10   792.0  1012.0

  6.65 1998/11/28 05:54:06 330.6   C2  10   786.0   986.0

  6.45 1998/11/28 05:30:06 329.9   C2  10   783.0   968.0

  5.85 1998/11/28 04:30:05 328.3   C2  10   769.0   917.0

  5.46 1998/11/28 03:54:05 327.1   C2  10   759.0   884.0

  5.19 1998/11/28 03:30:14 326.2   C2  10   752.0   861.0

  4.48 1998/11/28 02:30:05 323.3   C2  10   734.0   801.0

  4.03 1998/11/28 01:54:05 320.9   C2  10   722.0   762.0

  3.76 1998/11/28 01:31:59 319.3   C2  11   714.0   739.0

  6.73 1998/11/28 06:18:05 331.4   C3  11   575.0   238.0

  6.98 1998/11/28 06:42:05 331.5   C3  11   577.0   242.0

  7.45 1998/11/28 07:42:56 332.9   C3  11   578.0   251.0

  7.78 1998/11/28 08:42:06 333.7   C3  11   579.0   257.0

  8.04 1998/11/28 09:42:05 334.6   C3  11   579.0   262.0

  8.24 1998/11/28 10:18:05 335.2   C3  11   579.0   266.0



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  6.71 1998/12/07 00:54:05 151.7   C2  10   239.0    14.0

  6.41 1998/12/07 01:31:59 150.0   C2  10   238.0    44.0

  6.23 1998/12/07 01:54:05 148.8   C2  10   237.0    63.0

  5.94 1998/12/07 02:30:05 147.1   C2  10   237.0    92.0

  5.74 1998/12/07 02:54:05 145.9   C2  10   238.0   112.0

  5.44 1998/12/07 03:30:05 143.7   C2  10   239.0   143.0

  5.22 1998/12/07 03:54:06 142.1   C2  10   240.0   165.0

Please disregard my previous post.  Looks like noise.



--DJ Hanson

object found in the LOWER LEFT CORNER of picture LASCO-C2 2002 MAY 08 - 05:05



regards

FREDERIC MOSER

________________________________________

object found : vertical line

picture zone : lower right corner

camera picture : lasco-c3 2002 may 08 06:42

filename : 33089824.fts



object found : vertical line

picture zone : just below the middle of left picture border 

camera picture : lasco-c3 2002 may 08 06:42

filename : 33089824.fts



object found :  2 diagonal lines

picture zone : just above the middle of right picture border 

camera picture : lasco-c3 2002 may 08 06:42

filename : 33089824.fts



_______________________________________



object found : small line

picture zone : middle between top picture border and solar center

camera picture : lasco-c3 2002 may 08 06:18

filename : 33089823.fts



object found : small curve

picture zone : middle of left border picture

camera picture : lasco-c3 2002 may 08 06:18

filename : 33089823.fts



________________________________________



regards

FREDERIC MOSER

First a correction on my part.  In my last post, all of the

positions given are correct.  However, in the table posted, I

put in the wrong date for a confirmed comet.  The corrected

table is given below.  We'll try to make a decision on the

pending comets as soon as possible.



Also, regarding the report by F. Moser and a few of the other

posts.  Cosmic rays are evident in all of the images and take

on many shapes and sizes.  The way we distinguish them is that

they do not appear in the previous or following images.  Comets,

asteroids, stars, and planets should appear in sequences of

images.  If you don't see your potential object in at least 4

frames, moving with a consistent velocity, and with shapes and

brightnesses which vary in reasonable ways, then it's not going

to be considered a real astronomical object.  Don't post unless

your object meets these requirements.



  Date   Tele.   Discoverer   Status

 -------------------------------------

  020503   C2      R. Kracht    Pending

  981103   C2      R. Kracht    Confirmed (corrected)

  981108   C2      X. Leprette  Pending

  981128  C2,C3    R. Kracht    Confirmed

  981207   C2      M. Meyer     Confirmed

  

Doug

This I hope might be my first! Highly likely 

sporadic comet in LASCO C3 images (1024*1024), 

to the left of the sun, on 6 May 2002. The object

does not appear to be cosmic rays. I'm convinced

this is a comet moving through 4 frames. 



Using Java console to report positions.



Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  94 665  20020506 1718  3861678   1.804E7

   1  84 671  20020506 1742  3861702   1.850E7

   2  82 672  20020506 1818  3861738   1.859E7

   3  79 676  20020506 1842  3861762   1.875E7



Doug, can you please confirm? Thanks.



Best regards,

Mark Ledingham

Regarding M. Ledingham's report in the C3 telescope for May 6.

This is definitely cosmic rays.  Why?  The comet appears out of

nowhere and disappears too quickly.  As bright as it is, we'd

expect it to be visible in the neighboring images.  Also, there

is a rather abrupt change in velocity.



Doug

Hi,

I have found an object that I believe may be a comet.

I cannot find any references to the object with my

planetarium software.  I am looking at the sky with binoculars.

The approximate location is:



RA 13 3/4

Dec -40

(best estimate via binoculars)



In the constellation Centaurus.  On a line formed by M83 and

Iota Centauri, approximately 4 degrees away from Iota Centauri

toward the horizon.  Observing location is Santa Fe NM.

I have noticed it both last night and tonight.  I initially

thought it might be M83, but the location is not matching.

I am comparing the observation to Ikeya-Zhang which I have

also been observing for the past several nights, and the

characteristics appear similiar to me.



Can this sighting be confirmed or denied?



Thank you for any assistance,

Sincerely,

Clifford E Carnicom

PO Box 4653

Santa Fe NM 87502

505.466.2784

May 8 2002

1030PM

Possible sporadic comet in real-time C2:



9-May-2002, 512x512, (x=0,y=0) upper-left

           

00:06 - (17,251)

00:50 - (70,259)

01:27 - (95,262)

01:50 - (115,265)



--DJ Hanson

Re: Two latest reports



Clifford:

you have poisted a claim for a comet discovery on the board for

SOHO comet discoveries. This is not the right place to do. 

Please look at

http://cfa-www.harvard.edu/cfa/ps/CometDiscovery.html

for making such claims.



DJ:

Without looking at it I can decide that it is not real, but noise.

Comets should move with a very constant velocity in subsequent 

images. If you calculate these figures for your claim you'll see

that the velocities in x and y change:



Velocities in pix/hr x: 72 -> 40 -> 26, y: 10 -> 5 -> 8



Kind regards, Maik

Regarding the post by D. Hanson, the points are widely spaced,

which always makes confirmations difficult.  In this case,

the apparent changes in speed and the fact that there is no

corresponding point in the intervening image at 00:26, make it

clear that these must just be cosmic rays.



Regarding claims for non-SOHO discoveries, there is no way

that I can deal with such reports.  Please do as Maik suggests.



We have confirmed the R. Kracht claim from May 3, 2002,

in the C2 telescope.  Still working on the 981108 claim.



That takes the current count to 439, with the numbering as follows:



 SOHO #  Date   Tele.   Discoverer  

 ---------------------------------

  436  020503   C2      R. Kracht   

  437  981103   C2      R. Kracht 



Also, just to note an interesting artifact in the data.  In C2

images from May 9, 2002 at 03:26 UT, there are a series of

straight lines.  These all appear to emanate from the bottom

left corner, just off the edge of the image.  If you trace

each of the lines back, they all intersect at a single point.

A classic example of spallation.  A cosmic ray striking some

part of the detector and throwing out other particles.



Doug

Regarding the report of a possible comet sighting made yesterday,

I would like to make the following information available to the

public through the courtesy of Mr. Green of Harvard-Smithsonian.

I would also like to express my appreciation to the gentleman

from California that has expressed an interest in helping to

identify this object.  The object has been identified as

omega Centauri, and it has been a learning and helpful

experience.



Clifford E Carnicom

xxx@xxx

Santa Fe NM





Mr. Green,



I want to thank you for taking the time to reply to my inquiry.  

I have made additional observations tonight using the information 

that you were kind enough to provide to me.  Your statement is 

exactly correct; and I accept completely your identification of 

the object I have observed as being that of omega Centauri.  

I can see now that I also had the object located at a greater 

elevation than is correct.  It is also of interest to me that 

the planetarium software I am using does not show this

object, but I was able to find it within my atlas.  

Thanks again, and I will disseminate your identification 

to all parties that indicate an interest in the matter.



Sincerely,



Clifford E Carnicom

xxx@xxx

The following reply is posted for the benefit of all interested:



"Dan Green wrote:



> Greetings.  Your message about a possible comet near iota Cen

> has been forwarded to us by Roberto Gorelli.  At the latitude

> of Santa Fe, with a good southern horizon, you should be able

> to see the bright globular cluster known as omega Centauri,

> which probably does indeed look a lot like comet C/2002 C1 right

> now.  When near your meridian, omega Cen would be about 10 deg

> below iota Cen.

>

> If the object is not omega Cen and you still think it to be a

> possible comet, please follow the guidelines at the following

> website to report additional information:

>

> http://cfa-www.harvard.edu/iau/DiscoveryInfo.html

> http://cfa-www.harvard.edu/iau/CometDiscovery.html

>

> Kind regards, Dan Green

>

> ---------------------------------------------------------

>

> Daniel W. E. Green                   [xxx@xxx]

> Harvard-Smithsonian Center for Astrophysics

> Cambridge, MA  02138, U.S.A."

Non-Kruetz in C2 images - 20020510_1126 UT



 Very faint 1/4 way from 11pm position



 ****** NOTE ******

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,0 in upper left corner



                  LASCO C2 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

--------------------------------------------

20020510_1126.gif  512 x 512    143, 58      

20020510_1150.gif  512 x 512    147, 59

20020510_1206.gif  512 x 512    150, 61

20020510_1226.gif  512 x 512    154, 60

      

----------------

Michael Boschat

To all newbies on this Board:



If you are interested in training SOHO comet hunting you may

download a .zip I provide on my website at 

www.sungrazer.org/find.html. I included C2 and C3 images of three

May and June comets of last year - faint and brighter ones - so 

you can see whether you would have found them. Attention: the zip-

file is as large as 10 Mb!



Regards, Sebastian

SOHO EIT 171A

Latest 25 sgf Images (approx. 5300 kb) as of Sat May 11 02:39:01 GMT 2002 



I think that I have found a comet located on the image taken at 1300 on 05/11/2002.  On the bottom right side of the frame is a small fast object that only last in the frame for one viewing.  It appears to be heading toward the sun.  I hope this is a new comet.  



Thank you,

George Zderich

xxx@xxx

George,



comets are found in C2 and C3 images, not in the EIT images. The

EIT images are too close to the sun. Additionally real objects are

not only visible in one image but at least in four. Please make

sure you have read the instructions and hints on the page with the

report form. Also, without giving any coordinates and image size

no one will be able to locate your object. I recommend

http://www.sungrazer.org for a step-to-step guide for finding

comets in C2 and C3 images with examples of previous ones so one

knows what to look for.



Kind regards, Maik

quasar?

Marsden group comet in archival C2 images of 2000 February 04.



C2, 1024x1024, 0,0 upper left



22060880.fts  11:06   10, 355

22060881.fts  11:30   36, 344

22060882.fts  11:54   63, 332

22060883.fts  12:06   76, 327

22060884.fts  12:30  104, 315

22060885.fts  12:54  133, 304

22060886.fts  13:31  Artifact

22060887.fts  13:54  204, 277

22060888.fts  14:06  220, 272



faint object on the track of C/2000 C3 (0.1 days before 2000 C3)

This seems to be the third 'triple-Marsden' (with 2000 C3 and C4).

The other two are 1998 A2/A3/A4 and 1999 P6/P8/P9.



 Regards, Rainer

Possible comet in real-time c2 images .

0,0 in upper left corner

Images                   Size         X, Y

20020511_0950 _c2.bmp  1024 x1024   330,950

20020511_1026 _c2.bmp  1024 x1024   338,934  

20020511_1050 _c2.bmp  1024 x1024   343,915   

20020511_1106 _c2.bmp  1024 x1024   347,907  

20020511_1126 _c2.bmp  1024 x1024   351,897 

li hao

In Finland..

There is an apparent comet, quite bright, close to Hercules.  The comet looks about 5-6 magnitude compared to M13.  The size of the nebulosity is about 20-30 minutes.  The approximate coordinates are RA = 16h 53 m and Dec = +42 deg 30 min.  This object is close to Hercules and NGC 6239.  M92 is also close by.  I first saw this object as a very bright like globular in the sky when looking for M92 with my 9x63 Orion binoculars.  I have subsequently looked at it with 12X60 visioneer binoculars.  It is not M13 or M92 or NGC 6239.  However, it is close to NGC 6239.  Conditions are 8/10 steadiness and 4.5 transparency.  Temp is 77 F.  I first spotted the object 5/13/2002 at 05:00 universal time (5/12/2002 and 11:00 PM CDT) with binoculars.



I am now looking at it with an 8" reflector telescope and 15 mm vixen lanthanum eyepieces.  If it is not a comet, what is this object?  I thought it was a globular at first, but it will not resolve into stars like M13.   

Hi all,

Please note that first of all this is not a chatroom.

Check out your posts before posting to see that they are in a 

similar format to the proper previous ones.  

No descriptions in words - numbers and coordinates are required.

No comets in the sky either - these have to be reported to CBAT not here.



Regarding Mark Siddoway - congratulations, you have just discovered Comet Ikeya Zhang.



Regards

AP

Possible comet?  Shows in more than 4 frames, and doesn't move directly from left to right like stars - while maintaining a greater intensity.



(0, 0) is top left.

All images are 1024x1024

20020510_1426_c2.gif - 169.17

20020510_1406_c2.gif - 171,17

20020510_1426_c2.gif - 176,16

20020510_1450_c2.gif - 181,15



Would appreciate feedback on more things to look for if this doesn't pan out :)



Mark

A possible Kreutz comet in a real-time C2 images now.



The object is faint, with a faint tail and it is visible in 2 consecutive images

on 2002/05/12-and 13 from 23:50 to 00:06 UT. 



Positions measured from the top-left corner of a 1024x1024 frames : 

          col, row

23:50 UT  431,1021

00:06 UT  436,1013



I'm waintig others images to confirm my report



Xavier Leprette

A possible Kreutz comet in a real-time C2 images now.



UPDATE :

I can confirm my previous report.

The object is faintly condensed, with a faint tail and it is visible now

in 4 consecutive images on 2002/05/12-and 13 from 23:50 to 00:50 UT. 



Positions measured from the top-left corner of a 1024x1024 frames : 

                   col, row

20020512 23:50 UT  431,1021

20020513 00:06 UT  436,1013

20020513 00:26 UT  445,999

20020513 00:50 UT  454,982



Xavier Leprette

Possible comet in c2



positions 1024x1024



2002/05/12-13



23:50 (431,1021)

00:06 (438,1011)





I am waiting other images to confirm





Toni Scarmato

Possible new comet in C2 real time images.

0,0 in bottom left corner in 1024x1024 images.



DATE        TIME     TEL     COL     ROW

2002/05/13   7:27    C2      651     23

2002/05/12   7:50    C2      659     42

2002/05/13   8:06    C2      669     58







Kazimieras Cernis

Corrected update.

Possible new comet in C2 real time images.

0,0 in bottom left corner in 1024x1024 images.



DATE        TIME     TEL     COL     ROW

2002/05/13   7:27    C2      651     23

2002/05/12   7:50    C2      659     42

2002/05/13   8:06    C2      662     58

2002/05/13   8:26    C2      668     74





Kazimieras Cernis

Anbother comet in c2 

positions 1024x1024 (0,0) top.left corner



starting at

2002/05/13



07:27 (652,1002)



seem visible in 3 images





Toni Scarmato

Corrected update. The object is seen on 5 images.

Possible new comet in C2 real time images.

0,0 in bottom left corner in 1024x1024 images.



DATE        TIME     TEL     COL     ROW

2002/05/13   7:27    C2      651     23

2002/05/13   7:50    C2      659     42

2002/05/13   8:06    C2      662     58

2002/05/13   8:26    C2      668     74

2002/05/13   8:50    C2      674     95      



Kazimieras Cernis

Update positions:



1024x1024 (0,0) top-left corner





2002/05/13 



07:27 (652,1002)

07:50 (658,980)

08:06 (664,968)





Regards,



Toni Scarmato

New bright comet in C3 now from 12:42 till 15:52 on 5 images.

0,0 in bottom left corner in 1024x1024.



DATE      TIME     TEL     COL    ROW

2002/05/13  14:42  C3      463    785 

            15:18  C3

            15:42  C3



Kazimieras Cernis

Update

New bright comet in C3 now from 12:42 till 15:52 on 5 images.

0,0 in bottom left corner in 1024x1024.



DATE      TIME     TEL     COL    ROW

2002/05/13  14:42  C3      463    239 

            15:18  C3      465    242

            15:42  C3



Kazimieras Cernis

Update. The comet is with small tail.

New bright comet in C3 now from 12:42 till 15:52 on 5 images.

0,0 in bottom left corner in 1024x1024.



DATE      TIME     TEL     COL    ROW

2002/05/13  14:42  C3      463    239 

            15:18  C3      465    242

            15:42  C3      468    245  

Kazimieras Cernis

Update. The comet is with small tail.

New bright comet in C3 now from 12:42 till 15:52 on 5 images.

0,0 in bottom left corner in 1024x1024.



DATE      TIME     TEL     COL    ROW

            14:18  C3      462    238

2002/05/13  14:42  C3      463    239 

            15:18  C3      465    242

            15:42  C3      468    245  

Kazimieras Cernis

Hi:



 Do we have to repeat so my updates on

the comets! looks like 6 or

more found! very confusing at times.



Mike

Mike, I think there are four new claims now:

Mark Mayo         C2 May 10

Xavier Leprette   C2 May 12 23:50 UTC (first obs)

Kazimieras Cernis C2 May 13 07:27

Kazimieras Cernis C3 May 13 14:18

the last one will enter C2 at about 5h UTC on May 14



 Rgards, Rainer

correction to my last post:

The C3 comet found by Kazimieras will

enter C2 around 15-16h UTC (May 14).



 Regards, Rainer

Wow! This should be a good one.  We're gearing up to observe this

one with everyone available.  Arecibo, LASCO, and maybe UVCS.

I'm doing the measurements for the CCD reduction now.  Look for

an orbit solution tonight.  Also, we'll do a refined solution

early tomorrow morning.  This is the bright C3 Kreutz comet in

the May 13 images.



I've spent the whole day dealing with e-mails regarding the

SOHO-500 contest.  We're up to over 200 entries.  Did everyone

see the story on http://www.cnn.com/TECH/space/



Doug

Doug,



what means

'the mother ship was parked in front of the satellite'?



Rainer

Regarding discussions of such things as mother ships, UFO's, or

other such phenomena, please let this be the last word.  I don't

want this to be discussed here.  That said, we occasionally get

lots of bad PR from folks claiming that we are covering up

conspiracies.  Everything from missing blocks, to door closed

images, to saturated planets, to data gaps of hours to days,

has been interpreted as us covering up alien spacecraft and

the like.



See some of my favorite websites such as:

http://www.cyberspaceorbit.com/rogues.html

http://www.enterprisemission.com/

http://www.cyberspaceorbit.com/

http://www.ghostweb.com/



Please take any discussions of such matters to newsgroups like

http://groups.yahoo.com/group/sohohunter/

where hopefully there can be a reasonable discussion of the

sometimes farcical claims.



Doug

Sorry, 

I thought (until now) www.cnn.com is a news service.



Rainer

possible comet in lasco_c3 real time

0,0 in the middle down 

20020514_0118_c3.gif 250,358

20020514_0218_c3.gif 251,356

20020514_0318_c3.gif 253,351

20020514_0418_c3.gif 255,348

possible comet in lasco_c3 real time

0,0 in the middle down 

20020514_0118_c3.gif 250,358

20020514_0218_c3.gif 251,356

20020514_0318_c3.gif 253,351

20020514_0418_c3.gif 255,348

possible comet in lasco_c3 real time

0,0 in the middle down 

20020514_0118_c3.gif 250,358

20020514_0218_c3.gif 251,356

20020514_0318_c3.gif 253,351

20020514_0418_c3.gif 255,348

Xu Chen,



this is C/2002 J3, discovered yesterday by K. Cernis (assuming

you have used 512x512 images). Please look at this board before 

posting a claim to make sure that the object has already been 

reported. (And one post is enough).



Regards, Maik

sorry, i forgot to tell you  the size of the image that i found  

is 512*512 

Possible comet in LASCO C3 Real Time 1025x768

0,0 in top left

20020514 1118 535,639

20020514 1142 537,635

20020514 1218 538,630

20020514 1242 540,626

To avoid double reports:



Kazimieras' bright C3 comet now enteres C2 FOV (15:50 UT). It is

the bright one appearing at (660,1020) in 1024 x 1024 resolution.

Please do not post is as new.



Regards, Sebastian

I think it is a new comet at the following position on the C2.



Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  340 346  20020514 0626  3872546   2007836

Possible sungrazer comet in a real-time C2 images now 



It is visible on 2002/05/14 from 16:50 to 17:26 UT in 3 consecutive frames 

The object is faint, without tail and it is moving towards the sun. 



Positions measured from the top-left corner of 512x512 frames :

 

       col,row

16:50  210,509

17:26  217,498

  

I'm waiting other images to confirm my report. 



Xavier Leprette

About my previous report :

Nothing is visible in 1024 images. 

Disregard. Sorry



Xavier Leprette

New Faint comet to the left of the bright one in C2 NOW



In 4 images so far



(0,0 in bottom left corner in 1024x1024 images)

Image                Col Row  

20020514_1650_c2.gif 422 5

20020514_1706_c2.gif

20020514_1726_c2.gif

20020514_1750_c2.gif





Michael Oates

UPDATE on faint comet to the left of the bright one in C2



Now in 6 images so far: full positions:



(0,0 in bottom left corner in 1024x1024 images)

Image                Col Row  

20020514_1650_c2.gif 422 5

20020514_1706_c2.gif 428 16

20020514_1726_c2.gif 435 29

20020514_1750_c2.gif 446 46

20020514_1806_c2.gif 451 57

20020514_1826_c2.gif 459 71



Michael Oates

Mike,



good to see you here again!



It seems that your positions coincide with the ones by Xavier's

object (the post prior to yours) which he withdrew.



Maik

Hi Mike and Maik,



Thanks Mike to confirm my first report (14 2002 14:01:45). Happy to see you again on the web.

I saw the comet on 3 images (then also at 17:50) in 512 format, but then unfortunately I have downloaded 2 bad images in 1024 to check my report (16:06 and 16:26 UT) and obviously I have not been able to see the object. So I sent a second message to withdraw the first.

Perhaps Doug will understand my mistake and will give the credit for this one to me and you ?



Regards



Xavier

Possible Kreutz comet in LASCO C2 images

 (1024 x 1024, 0,0 in upper left corner)





20020515 0026  544,964 (resized from b/w)

20020514_2326  530,985

20020514_2306  523,1000



Fairly bright and condensed; awaiting other images



--Tony 

I am withdrawing my previous report

(it proved to be just some enticing noice).



--Tony Hoffman

2 536 378 20020514 11:18

3 536 383 20020514 11:42

4 538 389 20020514 12:18

5 540 392 20020514 12:42

6 542 399 20020514 13:22

7 543 402 20020514 13:42

8 547 411 20020514 14:42

9 549 417 20020514 15:18

10 550 422 20020514 15:42

11 552 428 20020514 16:18

12 553 432 20020514 16:42

 

I hope this to be a comet. It appears bright in the lower portion of the C3 1024x1024 Gif. I am new to this and hope I havent made  mistake. Thank you

Monte

Object direction is in an upward motion

toward the sun's lower right corner. 

Monte,



this is C/2002 J3 (SOHO), already found by Kazimieras Cernis two

days ago. If you had looked on this board before posting your 

claim you would have noticed severals messages concerning this

bright one and that it was also visible yesterday in C2.



Regards, Maik

Hi all,

	I've been busy, which is why you haven't heard much from

me.  We got lots of good data on C/2002 J3.  Anyway, catching up

on the reports.  Other than the reports listed below, all other

reports have been found to be something other than a comet.



First, I have finally confirmed a pending decision, that of a C2

comet from 98/11/08, first reported by X. Leprette and then by

R. Kracht.  That one has been designated SOHO-438.



Other confirmed comets are the C2 comet of 02/05/13 07:27-08:50

reported by K. Cernis, also the C2 comet of 02/05/14 16:50-18:50.

That one was first reported by X. Leprette.  It was retracted by

himself and then reported by M. Oates.  This brings up a point

about retractions.  I treat every report the same, even the

retracted ones, as I feel obligated to check all reports.  Thus,

I will still give Xavier credit.  I hope that Mike is okay with

that.



Pending comets are the C2 report for 00/02/04 11:30-14:06 and

the C2 comet from 02/05/12 23:50 - 02/05/13 00:50.



Thus, the confirmed comet count is up to 443, plus 2 pending.



 SOHO #  Date   Tele.   Discoverer  

  ---------------------------------

   438  981108   C2      X. Leprette   

   439  981128   C2      R. Kracht

   440  981207   C2      M. Meyer

    ?   000204   C2      R. Kracht   (pending)

    ?  020512-13 C2      X. Leprette (pending)

    ?   020513   C2      K. Cernis

    ?   020513   C2      K. Cernis

    ?   020514   C2      X. Leprette



Doug

Whoops!

I can't imagine what I was thinking.  Of course the 7th comet

in the table from the previous post is C/2002 J3 and was visible

in both C2 and C3 from May 13-14.



Doug

Possible comet in C2 beginning at 2002/05/15 23:26.  512x512

B&W coordinates (0,0 in upper left):



2002/05/15 23:26 239, 553

           23:50 243, 545

           

Awaiting 1024x1024 images for confirmation.  --Rob

Comet in C2 looks legit.  The 2326 image has now shown up

in 1024x1024 format -- coordinates:



2002-05-15  478, 1007



--Rob

Final update on C2 comet beginning at 2002/05/15 23:26.

512x512 B&W coordinates (0,0 in upper left):



2002/05/15 23:26 239, 553

           23:50 243, 545

     05/16 00:06 246, 540

           00:26 249, 533



Finally got one!  --Rob

Yes,I can confirm Rob's report, a middle bright comet.

Rob's first comet,congratulations!



Xingming Zhou

254 474 0050 20020516 c2 top/left

Comet find 20020516 c2 top/left 512/512 to 1024/1024



2326 239 503 20020515

2350 243 495

0006 246 490 20020515

0026 249 483

0050 254 474



Mimeev

Sorry

Rob first...



Coordinate in automated search 1024/1024 c2 top/left

2326 479 17

2350 487 33

0006 493 44

0026 500 58

0050 508 74

Mimeev

Congratulations on your first find Rob.  See, the perseverance

pays off.   C2 comet on May 15-16, 2002.  Rough positions below.

The comet becomes obscured by the solar coronal streamer.



Doug



# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW

  6.21 2002/05/15 23:06:06 175.8   C2  10   471.0     3.0

  6.06 2002/05/15 23:26:07 176.6   C2  10   479.0    15.0

  5.83 2002/05/15 23:50:05 177.4   C2  10   487.0    33.0

  5.71 2002/05/16 00:06:05 178.0   C2  10   492.0    43.0

  5.55 2002/05/16 00:26:06 178.8   C2  10   499.0    56.0

  5.35 2002/05/16 00:50:05 179.8   C2  10   507.0    72.0

  5.00 2002/05/16 01:27:20 181.7   C2  10   521.0   101.0

Comet? in C3 20020516_1042
 ****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,477 in lower left corner
20020516_1042.gif  512 x 512  300, 354
20020516_1142.gif  512 x 512  298, 353
20020516_1218.gif  512 x 512  299, 352

Mike Boschat

Comet? C3 0,0 top left



 8.42  39 364 (??)

 9:18  46 341 (?)

 9:42  70 321

10.42  85 306

11.42 112 299

12.18 124 302

More pics about the suspected comet (???)



C3 512x512 top-left



08.42  39 364 (??)

09.18  46 341 (?)

09.42  70 321

10.42  85 306

11.42 112 229

12.18 124 302

12.42 130 307

13.42 132 310

14.18 135 310

14.42 138 324



date: 16.05.2002



Emanuele Zattin

Emanuele,



your object moves too erratic for a comet and I guess it changes 

shape and brightness, too. Comets move with a very constant 

velocity in x and y directions - your object moves on trajectory

which cannot be explained by physical laws, even the velocity

changes. It accelerates and decelerates. Together with fact of 

changing shape and brightness we can conclude that this is just

noise.



Regards, Maik

only 3 image 20020517 C2 512

0006 321 498

0026 328 474

0050 333 459

Yurij

Last message not to consider. Only noise.

Yurij

possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date  Time  x  y

20020518 1550 494 1012

20020518 1650 510 982



Regards, Rainer

UPDATE possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date  Time  x  y

20020518 1550 494 1012

20020518 1650 510  982

20020518 1706 514  970



Regards, Rainer

UPDATE possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date  Time  x  y

20020518 1550 494 1012

20020518 1650 510  982

20020518 1706 514  970

20020518 1726 520  956



It seems to be real, but the first position

could be wrong/unsuitable



Regards, Rainer

UPDATE Kreutz sungrazer in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date     Time  x    y

20020518 1650 510  982

20020518 1706 514  970

20020518 1726 520  956

20020518 1750 528  940

20020518 1806 534  928



it is a small Kreutz sungrazer

the first position (15:50 UT) was wrong/unsuitable



Regards, Rainer

OT - too many updates! Gets a

bit confusing..I can see 2 at tops 

but not 4 or more...thanks.

congrats Ranier



MB

possible comet in C2 images

0,0 in upper left

Date      Time      size        x     y

20020518 23:50   1024x1024      825  1013

20020519 00:06   1024x1024      792  1002

Awaiting next images .

Li  Hao  

I'm revy sorry ,the first point x=815

I think MB first.

The last report, Only noise. a kind of groundless conjecture, 

We will be condemned! 



XingMing

Possible comet in LASCO C2 images



Date: Apr 14, 2002



Brief description:

Faint sungrazing comet, moderately condensed, smal

tail visible



Positions: 512x512 images, (0,0) upper left



Time    (x,y)



16:06 333,506

16:26 334,497

16:50 338,488

17:06 341,481

17:26 343,471

17:50 345,461

18:06 348,455

18:26 350,446

18:50 353,434



Regards,



Christian Henkel/Germany

www.astrotreff.com

Christian,

that's a fine comet (C/2002 J3) already found by

Kazimieras Cernis on May 13!



Rainer

Possible comet in C2 images - 20020519_1450 UT





 ****** NOTE ******

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,477 in lower left corner



                  LASCO C2 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

--------------------------------------------

20020519_1450.gif  512 x 512    360, 475       

20020519_1506.gif  512 x 512    374, 470

20020519_1526.gif  512 x 512    381, 467



Mike Boschat

Disregard my post of:
May 19 2002 13:27:25

mb

possible comet in C3 images

0,0 in upper left

Date & UT            Size         X and Y 

of Images            used              

--------------------------------------------

20020519_2218_c3.gif  512 x 512    336, 106       

20020519_2342_c3.gif  512 x 512    292, 65

20020520_0018_c3.gif  512 x 512    225, 68

20020520_0042_c3.gif  512 x 512    175, 150

Sorry, I think the first one point in my last post of May 20 2002 20:01:57 might be 20020519_2218_c3 (358,137), or none of both.

This is my first try on observing SOHO images, if there's any incorrect assumption, please don't mind. 



Edwin Zhang

Comet ? in C3 images - 20020520_2342 UT



 Coming off bottom of image into

a bright star. Near 6pm position.



 ****** NOTE ******

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,477 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

--------------------------------------------

20020520_2342.gif  512 x 512     270, 478     

20020521_0018.gif  512 x 512     271, 476

20020521_0042.gif  512 x 512     272, 474



Mike Boschat

more points about the comet in my post of May 20 2002 20:01:57



0,0 in upper left

Date & UT            Size         X and Y 

of Images            used              

--------------------------------------------

20020519_2318_c3     512*512     (401,52)

20020519_2342_c3     512*512     (291,65)

20020520_0018_c3     512*512     (225,69)

20020520_0042_c3     512*512     (174,152)

20020520_0218_c3     512*512     (225,216)

20020520_0418_c3     512*512     (216,340)

20020520_0518_c3     512*512     (152,393)

20020520_0742_c3     512*512     (69,405)



Edwin Zhang

Possible comet in real-time C2:



20-May-2002, 1024x1024, (x=0,y=0) upper-left

           

22:26 - (251,948)

23:06 - (290,927)

23:26 - (307,916)

23:50 - (326,904)



--DJ Hanson

Report by Edwin:



Comets move in a predictable way, i.e. the don't go zig-zag, but

this is what your "object" does. They move almost straight. The 

changing shape and brightness shows us that it is just noise.



Regards, Maik

Hi all,

 You may notice that one post from May 20 has been removed.  That

is because it contained no information relevant to SOHO comets

and it contained language not appropriate for a forum which is

both public and serious.



 Also, I don't know if I'll get to any reports this week.  I'm

in the Central European Timezone (Marseille, to be exact) and

as I'm here for work, I have other priorities at the moment.



 Doug

For info, Mercury entered the C3 field today on the left hand

side.  Jon

Possible archive Kreutz comet in C2 frames from 17 april 2001



The object is visible in 7 consecutives images.

It looks like a moderatly bright blob, condensed enough,

without tail. 



All positions measured from the bottom left corner 

in 1024x1024 frames :

      

Ref. image,     X,      Y,  	   Time	,	Date      

22091183.fts	267	11	18:06:05.582    17 april 2001

22091184.fts	282	29	18:30:06.567    17 april 2001

22091185.fts	298	46	18:54:05.553    17 april 2001

22091186.fts	322	75	19:31:46.729    17 april 2001

22091187.fts	337	91	19:54:05.495    17 april 2001

22091188.fts	345	100	20:06:05.509    17 april 2001

22091189.fts	362	120	20:30:05.495    17 april 2001



Xavier Leprette

This object appears on the left hand side of the C3 images and moves just slightly faster than the background stars from left to right...  some of the points may be off slightly.





Point   X     Y       YYYYMMDD    HHMM

  0    11    220      20020522    0642

  1    13    219      20020522    0742

  2    14    219      20020522    0818

  3    15    219      20020522    0842

  4    16    219      20020522    0918

  5    19    219      20020522    1042

  6    20    219      20020522    1118

  7    21    219      20020522    1142

Regarding my observation I have made, it appears in the 512x512 C3 moving images.

For the findings too, my name is Martin

And another thing, positions measured from bottom left hand corner in 512x512 format.



(I'm new to this)

Yes, I see the object in C# traversing into the field of view in the left side of the view.  Probably Mercury?

Confirmation of Xavier's report for archive comet

from 17 April 2001

I can see why that was missed, rather noisey images

But looks like a real comet to me. Well done.



Mike

Martins report:



This is indeed Mercury. See

http://sungrazer.nascom.nasa.gov/transits.html



Regards, Maik

ossible faint Kreutz comet in real-time C2



23 May 2002, 1024x1024, 0,0 upper left



05:50 766, 1021 (at the edge)

06:06 769, 1010

06:26 772,  994

06:50 776,  976



Very faint.



Unfortunately the PW Sequence starts afterwards and the next image

is the 07:27 UT one (not yet available). Since I guess the comet 

(if real) may be vanished until then I post this - although not 

100% sure.



Maik

Object comes into view just below midway on the left hand side. 

C3 realtime 1024x1024

point   x   y  yyyymmdd   hhmm

0      54  442 20020522   1442

1      57  442     "      1518

2      59  442     "      1542

3      62  442     "      1618

4      63  442     "      1642

 It is a bright blob and there are more images in the series.

Seems to ove faster than the stars in the background.

Planet or comet?

Monte:



you should have read the previous posts on this board as well as

http://sungrazer.nascom.nasa.gov/transits.html



This is Mercury, as additionally already pointed out twice.



Maik

If that is Mercury, why is it so dim and faint??



And if you look closely, its actually moving in a curved line moving towards the bottom of the image and not in a straight line from left to right.



Martin

Martin,



you may notice that ALL stars have slight offset towards the 

bottom while moving through the FOV. And its brightness should be

about 3-4 mag which is what we see.



Maik

Concerning my report of May 23 2002 03:30:40.



Nothing seen in 07:27 UT image. Please disregard my report.



Maik

Ah shucks, I saw it move and thought, "Could it be?"  Nah, it's just Mercury.  This brings up the question, are there any movie sequences I could download that actually show a sun grazer?  It would help if I knew what they looked like.  Also, are there any s/w products that help by comparing the images frame by frame that are publicly available?



Thanks,



Ted - the disappointed

Possible Kreutz sungrazer in C2 real time images



23 May 2002, 1024x1024, 0,0 upper left



13:56   537, 1020

14:26   544, 1001



Diffuse with condensation. Awaiting next images.



Maik

I see the same thing, Maik -- beat me by a few

minutes posting.  Looks promising to me... --Rob

Maik, it's still there in the next frame.

Congrats on your find!  --Rob

possible faint comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date     Time  x   y

20020523 1356 536 1020

20020523 1426 544 1002

20020523 1450 550  986



Regards, Rainer

I waited for the third image...

Congrats Mike!



Regards, Rainer

Confirmation of my previous report:



Possible Kreutz sungrazer in C2 real time images



23 May 2002, 1024x1024, 0,0 upper left



13:56   537, 1020

14:26   544, 1001

14:50   550,  988 (extrapolated from b/w images)



Maik

Kreutz comet in C2 real time images, final update:



 23 May 2002, 1024x1024, 0,0 upper left



 13:56   537, 1020

 14:26   544, 1001

 14:50   551,  986

 15:06   555,  976

 15:26   561,  963



Diffuse, dissolving and faint comet.



 Maik

Hello,



We are new here but maybee there's an object moving in the letft

lower part of real time C2 images on Fri May 24 06:12:56 GMT 2002



512 x 512 0.0 upper left



 1  76 21  20020523 1826  3886226   5045664

 2  80 21  20020523 1850  3886250   5003950

 3  83 21  20020523 1927  3886287   4973063

 4  85 21  20020523 1950  3886310   4952665

 5  88 20  20020523 2006  3886326   4936407

 6  90 23  20020523 2026  3886346   4874224

 7  92 21  20020523 2050  3886370   4882524

 8  96 22  20020523 2126  3886406   4829088

 9  98 23  20020523 2150  3886430   4795400

10  99 22  20020523 2206  3886446   4800054

11  107 22  20020523 2326  3886526   4724531

12  111 23  20020524 0006  3886566   4673175

13  116 24  20020524 0050  3886610   4613413

14  118 24  20020524 0127  3886647   4595696

15  121 24  20020524 0150  3886670   4569481

16  124 25  20020524 0206  3886686   4528706

17  125 24  20020524 0226  3886706   4535210

18  129 24  20020524 0250  3886730   4501736

19  129 26  20020524 0306  3886746   4471476

20  130 26  20020524 0326  3886766   4463178

21  131 26  20020524 0350  3886790   4454932

22  134 26  20020524 0406  3886806   4430504

23  137 27  20020524 0426  3886826   4391219

24  142 27  20020524 0506  3886866   4352229



Regards.



Benoit ROUSSEAU & Philippe BERTRAND (Fontainebleau. FRANCE)

Benoit, Philippe,



this is a star. Stars move from left to right with almost constant

y coordinates.



Maik

Sorry for our previous message.

That was our first try in two months.

We're still learning !



Keeping the faith !



Benoit & Philippe

using latest images on page

http://sohowww.nascom.nasa.gov/



0,0 upper left



302,963  20020524 time 6:50

310,959  20020524 time 7:27

318,958  20020524 time 8:06

321,958  20020524 time 8:26



travelling from lower left towards lower mid right



I am friend of Mike Oates  of Manchester UK

Possiblke Kreutz comet in LASCO C3 images



Date: May 24, 2002



Positions: (0,0) upper left, 1024 x 1024



Time     (x,y)

12:42   567,648

13:42   569,640

14:18   570,635



More on this soon.



Sebastian Hoenig

Kreutz comet in LASCO C3 images

(UPDATE and CONFIRMATION of my previous report)



Positions: (0,0) upper left, 1024 x 1024



Time     (x,y)

 ...    ...,...

09:42   561,671

10:42   563,663

11:18   564,659

11:42   565,656

12:18   566,651

12:42   567,648

13:42   569,640

14:18   570,635



plus more images previous. Was no one willing to report this one? :)



Sebastian Hoenig

Comet enters C2 FOV at 18:50 784,1012 - propably the one I have 

discovered in C3 earlier.

I think this is a very faint one. C2 Image = 1024x1024 real time



Time    x,y



15:50    233,201

16:06    218,205

16:26    195,209



C2 Image Size = 1024x1024

I think this is a very faint one, on the bottom left moving from right to left. Anyone else confirm?

C2 Image = 1024x1024

May 24th

Uper left  0,0







Time    x,y







15:50    233,201



16:06    218,205



16:26    195,209







C2 Image Size = 1024x1024

Dear Doug



Hello,



Thank you for your advice.

I received at your e-mail letter.



Yesterday,I wrote;



<>



I write more detailed report.



1.Lasco C2 = images

2.Date: 05/24/2002

3.Time 02:26

4.Coments:

I found the comet which is below(right side) the Sun.

It moved from right to left toward the Sun. It was shooting the Sun.



Please check it.



Best regards.



Rie Kasuga

  

I'm a new comer,I found something but not sure whether it was a comet.Can anybody help me confirm?

C2 512*512    bright to dim and disappeared 20020524

1850 392,506

1927 394,492

1950 395,483

2006 396,476

2026 397,468

2050 398,458

2126 399,444

2150 399,434

2206 400,426

2226 400,417

Possible comet in LASCO C3 images



Date: may 24, 2002



Brief description:

bright comet, moderately condensed, some

tail visible ,coming out of lower left by arm



Positions: 512x512 images, (0,0) lower left



Time (x,y) approximate (estimated)



16:18 88,60

19:42 90,60

20:18 92,60

20:42 94,60



Regards,

[McCanney, James]  

James Michael McCanney

PS Mercury is due for a transit but this object does not have 

the line through it as it should for a planet and seems too low

Last reports:



As far as I have checked, real comets are the objects



May 18  C2     by R. Kracht

May 22  C2        X. Leprette (Archival comet)

May 23  C2        M. Meyer

May 24  C2, C3    S. Hoenig



Other claims:

Ty:

Are there more positions? where is the object before and after

your indicated times?

Rie:

One image isn't enough. What you saw is a streak of cosmic 

rays. Please make yourself familiar with the reporting format and

common beginners mistakes. Examples for mistakes are on the report

input form and at www.sungrazer.org.

Lie:

This is Sebastians C3 comet. If you look a little bit below 

your report you see that Sebastian notes that his comet enters C2

and gives the first position.

James:

This is a star. Stars move from left to right with almost mo

change in y coordinates.



Of course, the last word is at Doug.



Maik

Possible comet in C2 realtime images

1024x1024  0,0 upper left

2002/05/25  1026    567  1015

     05/25  1106    575   988

Awaiting next images.

DongHua Chen

possible comet in C2 images

b/w 512*512 from the LASCO website

enlarged to 1024*1024

0,0 in upper left corner



Date  Time  x  y

20020525 1026 566 1012

20020525 1106 574 988

20020525 1126 578 976



Regards, Rainer

Kreutz comet in C2 realtime images:

(Update my previous report)



1024x1024    0,0  upper left



2002/05/25  1026    567   1015

2002/05/25  1106    575   988

2002/05/25  1126    579   975

2002/05/25  1150



DongHua Chen

Kreutz comet in C2 realtime images:

(Update my previous report)



1024x1024    0,0  upper left



2002/05/25  1026    567   1015

2002/05/25  1106    575   988

2002/05/25  1126    579   975

2002/05/25  1150    590   960(B/W,enlarged to 1024)

2002/05/25  1206    587   947



Regard,



DongHua Chen

Oh,a fine comet,Congrats DongHua!



XingMing

Update my previous report for the Kreutz comet

in C2 realtime images.



Positions: 1024x1024  (0,0) upper left



2002/05/25  1026   567  1015

2002/05/25  1050   571  998

2002/05/25  1106   575  988

2002/05/25  1126   579  975

2002/05/25  1150   585  961

2002/05/25  1206   587  947



Regards,



DongHua Chen

Kreutz sungrazer in archival C2 images of 2000 March 19.



C2, 1024x1024, 0,0 upper left



22064205.fts  11:06   73,1022

22064206.fts  11:30   95,1002

22064207.fts  11:54  117, 982

22064208.fts  12:06  128, 972

22064209.fts  12:30  150, 951

22064210.fts  12:54  173, 930



small comet, looks like a Kreutz sungrazer



my previous report (May 25 2002 08:02:34)

is clearly DongHua's comet, Congrats!



 Regards, Rainer

C2 Image Size = 1024x1024

0, 0, lower left



Point  X    Y    YYYYMMDD  HHMM  Julmins  Height(km)

0      607  122  20020525  1327  3888807  3419146

1      613  138  20020525  1350  3888830  3299271

2      617  149  20020525  1406  3888846  3217872

3      620  163  20020525  1426  3888866  3110330



Time(s)    Height(km)

0.0        3419146

1380.0     3299271

2340.0     3217872

3540.0     3110330

Height vs Time Slope = -87 km/s

Height vs Time Intercept = 3419644 km

Height vs Time Correlation coeff = -0.9

More addition points to update my previous report of a Kreutz comet found in C2 realtime images.



C2 Image Size = 1024x1024

0, 0, lower left



Point     X    Y      YYYYMMDD   HHMM   Julmins  Height(km)

0         575  30     20020525   1106   3888666  4145978

1         579  42     20020525   1126   3888686  4048458

2         585  58     20020525   1150   3888710  3920342

3         589  68     20020525   1206   3888726  3841359

4         598  96     20020525   1250   3888770  3619655

5         607  123    20020525   1327   3888807  3410788

6         613  138    20020525   1350   3888830  3299271

7         616  149    20020525   1406   3888846  3215384

8         620  163    20020525   1426   3888866  3102123



Time(s)     Height(km)

0.0         4145978

1200.0      4048458

2640.0      3920342

3600.0      3841359

6240.0      3619655

8460.0      3410788

9840.0      3299271

10800.0     3215384

12000.0     3102123



Height vs Time Slope = -86 km/s

Height vs Time Intercept = 4151585 km

Height vs Time Correlation coeff = -0.9

David,



before reporting objects please look at previous reports whether

the object has already be found. If you had done so you would

have noticed that this comet was reported first by DongHua Chen

yesterday (see report May 25 2002 07:43:35) with confirmations

from Rainer Kracht and Xingming Zhou.



Regards, Sebastian

Kreutz sungrazer in archival C2 images of 2000 March 28.



C2, 1024x1024, 0,0 upper left



22064647.fts  15:30  258,1001

22064648.fts  15:54  278, 979

22064649.fts  16:06  288, 967

22064650.fts  16:31  310, 944

22064651.fts  16:54  330, 920

22064652.fts  17:06  341, 908



small comet, condensed



 Regards, Rainer

Possible comet in C2 at 20020527_1226 UT



 I'm at the university but can't

get XY right now. The Object is in 

the lower right part of C2 near a "data noise"

about the 5pm position. Usig 1024 x 1024

size. Med bright.



 Hoping for more images, on 2 so far:



20020527_1226_c2.gif

20020527_1250_c2.gif



Mike Boschat

Possible comet in C2 images - 20020527_1226 UT



 Made it home! Here are the XY's

No new images yet! 

In the 1024 images it looks point like 

but the 512 images looks funny in shape. 



 ****** NOTE ******

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,477 in lower left corner



                  LASCO C2 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

--------------------------------------------

20020527_1226.gif  512 x 512    383, 474  

20020527_1250.gif  512 x 512    383, 458

     

----------------

Michael Boschat

Beautiful CME is visible now in C2 above the sun from 13:50 to 

15:26 UT.

13:50 436,203 in 1024 image



Xavier Leprette

Disregard my 2 posts of:
May 27 2002 11:21:39
May 27 2002 10:43:27

looks like noise.

MB

Whats that very bright object in the C3 images...  lower left corner...   dont tell me its Mercury, if so, my earlier report of a possible comet still stands?



Martin

Martin,



a star, namely Aldebaran, alpha Tauri.



Maik

Possible ???, but could be just a random chance alignement of noise... Positioned just below and to the left of DongHua's comet which is also visible in the same C2 frames



Point     X    Y   YYYYMMDD  HHMM   Julimins   Height(km)

0         515  48  20020525  1250   3888770    3951734

1         525  61  20020525  1327   3888807    3841718

2         542  70  20020525  1350   3888830    3772349

3         559  80  20020525  1406   3888846    3700543



Time(s)   Height(km)

0.0       3951734

2220.0    3841718

3600.0    3772349

4560.0    3700543

Height vs Time Slope = -53 km/s

Height vs Time Intercept = 3956348 km

Height vs Time Correlation coeff = -0.9

Dear Dong and Maik



Hello,



I found the comet while watching real time screen saver on the Internet. (May be)

1. LASCO C3 = images

2. Date & Time = 2002/5/27 

3. Positions = 512�~512 (0,0) upper right 

4. 20020527_1042_c3.gif

5. Comments = the object was in upper right near the Sun. It was shooting toward the Sun.



Isn�ft my report enough? 



Best regards



Rie

Rie,



this is again a cosmic ray hit.



Comets move. The are visible in successive images. Not only in one 

image.



Please look at the report form for common mistakes. You will see 

that cosmic rays are described there. Second, make yourself 

familiar what a comet looks like in the images by looking at the 

confirmed reports. Third, look at the requested format. You will 

see that several positions are needed. The following recent comets 

may be instructive (all are Kreutz group comets).



May 18  C2     by R. Kracht (C/2002 K3 (SOHO)

May 22  C2        X. Leprette (Archival find April 2001)

May 23  C2        M. Meyer

May 24  C2, C3    S. Hoenig

May 25  C2        D. Chen

May 25  C2        R. Kracht (Archival find March 2000)

May 27  C2        R. Kracht (Archival find March 2000)



You'll find positions for these claims at this board and can check

for yourself how a comet looks like. Another starting point is

http://sungrazer.org for a step-to-step guide for finding SOHO

comets.



Kind regards, Maik

Can you periodically show the updated total of comets found

so far, please? 



Thanks,

Ryan

I'm back in the office, though only for 2 days.  Note, we will

update the current count of comets whenever we are able.  Also,

the only definitive confirmations can come from Doug or Derek.

That said, I certainly appreciate that the posters to these

pages are generally keeping things under control.



Doug

Possible comet in C2



positions 1024x1024 (0,0) top-left corner



2002/05/28



13:50 (522,1012)

14:06 (523,1005)



I am waiting other images to confirm.



Regards,



Toni Scarmato

Possible comet in C3 starting at



1024x1024 (0,0) top-left corner



2002/05/28



14:18 (526,1020)



Regards,



Toni Scarmato

Update my last C2 report



1024x1024 (0,0) top-left corner



2002/05/28



13:50 (522,1012)

14:06 (523,1005)

14:26 (525,995)

14:50 (528,983)

15:06 (530,977)







Regards,



Toni Scarmato

Regarding instead the C3 report,

nothing visible at 14:42





Toni Scarmato

Just a quick update.  The current comet count is 449.  There are

4 claims pending.  Sorry, don't have the time to list these

individually.  That will happen eventually.



Doug

Possible comet in C3 images - 20020528_2318 UT





 ****** NOTE ******

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,477 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

--------------------------------------------

20020528_2318.gif  512 x 512     290, 377      

20020528_2342.gif  512 x 512     290, 373

20020529_0018.gif  512 x 512     289, 370

20020529_0042.gif  512 x 512     290, 368

      

----------------

Michael Boschat

DISREGARD my post of May 28 2002 22:30:08
noise.

MB

A spacecraft status update.  In order to perform momentum

management (to adjust the speed of the reaction wheels) and to

perform station keeping (to keep SOHO in its orbit), spacecraft

activities will begin Friday night and last through early next

week.  Due to the thruster firings and the fact that the Sun

pointing can't be guaranteed, the LASCO doors must be closed.

They'll be closing about 24 UT Friday night and re-opening

about 12 UT on Wednesday.  You can follow the spacecraft action

by watching EIT movies.



Doug

A strange object.... with a curved path.... any ideas ???



C3 Real Time images

0,0 lower left



Point     X      Y      YYYYMMDD  HHMM   

0            691   404   20020528   1939   

1            696   404   20020528   2118  

2            697   405   20020528   2142   

3            698   405   20020528   2218   

4            702   405   20020528   2342   

5            703   405   20020529   0018   

6            704   406   20020529   0042  

7            706   406   20020529   0142  

8            708   406   20020529   0218   

9            709   406   20020529   0242  

10          710   407   20020529   0318   

11          712   407   20020529   0342   

12          714   407   20020529   0442   

13          717   407   20020529   0518   

14          716   407   20020529   0542   

15          718   408   20020529   0618   

16          719   408   20020529   0642   

17          722   408   20020529   0742   

18          723   408   20020529   0818   

19          724   408   20020529   0842   

20          726   408   20020529   0918   

21          728   408   20020529   0942   

22          729   409   20020529   1042   

23          732   410   20020529   1142

24          733   409   20020529   1218

25          735   409   20020529   1242

26          738   410   20020529   1418

27          739   409   20020529   1442

28          743   411   20020529   1618

29          744   411   20020529   1642



Regards 

Dave Evans

Please disregard my last posting - I mistook a close-by reference star as 



the moving object!!!  The actual moving object, gradually brightening, 



is as follows........ my humble appologies.



Not all points have been included in this report, however the object is 



visible on all C3 frames within the observed time span.



0,0 lower left





X      Y      YYYYMMDD  HHMM





633   407   20020528   1042



656   407   20020528   1618



690   405   20020529   0018



715   404   20020529   0618



741   403   20020529   1242







Regards

Dave Evans

Hi I think I may have discovered a comet using the SOHO images. The time that I found the comet was listed under the image and it had this time on while I found the comet,(2002/05/24 02:26) that was the currant time that it had when I found the comet. I need you to look at the image to see if I discovered a comet; but I'm preety sure I did. Just e-mail me at xxx@xxx to tell me if I discovered a comet. Bye. 

C3 Image Size = 512x512



Point   X  Y   YYYYMMDD HHMM  Julmins Height(km)

   0  352 200  20020529 0342  3893982   9260004

   1  354 199  20020529 0442  3894042   9439478

   2  356 200  20020529 0518  3894078   9526736

   3  355 199  20020529 0542  3894102   9505950

   4  357 199  20020529 0618  3894138   9639572

   5  358 200  20020529 0642  3894162   9661435

   6  361 200  20020529 0742  3894222   9865048

   7  362 199  20020529 0818  3894258   9977362

   8  362 200  20020529 0842  3894282   9933319

   9  365 198  20020529 0918  3894318   1.022E7

   10  364 200  20020529 0942  3894342   1.007E7

   11  366 197  20020529 1042  3894402   1.033E7

   12  368 199  20020529 1142  3894462   1.038E7

   13  370 200  20020529 1218  3894498   1.048E7

   14  371 199  20020529 1242  3894522   1.059E7



512x512 C3 image....





0,0 bottom left

keep forgetting to post my name!



Martin Chuter

David: This is Mercury. Brightening and moving just as predicted.



Christian: One image isn't enough. It should be visible in at 

least four consecutive images, move in a consistent way and also

the shape and brightness should change in a predictable way. So,

if that is not the case - then its not a comet.



Martin: A star.



Regards, Maik

I hate to say this, but surely your wrong!



That object is certainly not a star!  It moves a lot faster than the background stars and moves diagonally downwards and to the right, discounting it as a star...  (speed the moving GIF images up and you'll see)



Also not being nasty or anything, but reading a previous post on this board, I would like my confirmation verified by Doug or Derek...



May 28 2002 10:24:06 Doug Biesecker 

--------------------------------------------------------------------------------

xxx@xxx  

I'm back in the office, though only for 2 days.  Note, we will

update the current count of comets whenever we are able.  Also,

the only definitive confirmations can come from Doug or Derek.

That said, I certainly appreciate that the posters to these

pages are generally keeping things under control.



Doug

Upon careful rechecking it might be possible that Martin also refers

to Mercury. (The coordinates don't match in y)



Maik

previous post by Martin

Martin,



just wanted to help and avoid confusion for others following

false claims. For discussion I'd like to refer and invite you

and others to the sohohunter yahoo mailing list.



The thing is that Mercury has been posted now about 5 or 6 times

although it is listed in the transits list.



Maik

how do people join this list?

The list is at

http://groups.yahoo.com/group/sohohunter/



Rainer