SOHO-LASCO Comet Reports for 200103

Suspect faint object moving toward the sun; seem visible

on 5 consecutive LASCO C3 images 512x512 (0,0) top-left

corner at approximate positions:



2001/03/01 11:42 (310,372)

2001/03/01 12:18 (309,371)

2001/03/01 12:42 (309,370)

2001/03/01 13:42 (307,368)

2001/03/01 14:18 (307,367)





I am waiting other images to confirm.



Regards,



Toni Scarmato

Regarding my last post the object seem continue to be 

visible at positions:



2001/03/01 14:42 (307,366)

2001/03/01 15:18 (306,365)



but I am not sure because seem to change in brigthness 

even if the motion is in agreement with other positions.



Regards,



Toni Scarmato

Possible sungrazer in C3 images - 20010301_1542 UT

Coordinates:

Brief description of comet: seems
steady brightness...dunno..

Here are the (approximate) XY coordinates of
the object and an image of the area.

 ****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.

Regarding the last reports of Toni:

I think that there is no object because I have found almost 

nothing in the 1024 images except at 12:18 (definitive a star).



Sebastian

Lets try this one more time!

My computer system flickered and sent the

post without XY's -- sorry...this is for  the

below post...



 Possible sungrazer in C3 at 20010301_1542 UT



 No images yet after 1618 UT its now about

1739 UT...



Here are the (approximate) XY coordinates of 

the object and an image of the area.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

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

20010301_1542.gif  512 x 512    36, 366      

20010301_1618.gif  512 x 512    39, 364



Mike Boschat

Disregard last post -- Noise!



 I managed to download 1024 size

images -- about 10 min to do and

looping them the object appears as a

line ( - ) then changes to a point ( . )

my conclusion - noise... sorry..

no new images yet..1725 UT



Mike B. 

Suspect object entered in LASCO C3 seem visible on 5

consecutive images 512x512 (0,0) top-left corner.



Positions:



2001/03/02 10:42 (83,446)?

2001/03/02 11:18 (84,445)

2001/03/02 11:42 (85,444)

2001/03/02 12:18 (85,443)

2001/03/02 12:42 (85,442)



The object diffuse is near two stars the appear from the pylon 

at the right.



Regards,



Toni Scarmato

Hi All,

	I don't see anything corresponding to T. Scarmato's claim

of an object on March 2.  Subsequent images also do not show

any object.



	February was a slow month for comets.  Don't worry,

they'll be back.  I hope.



Doug

Possible comet entered in LASCO C3 view at 2001/03/05 11:18 

for now visible only in 3 consecutive images at left of the

pylon.



Positions: 512x512 (0,0) top-left corner



2001/03/05 11:18 (47,421)

2001/03/05 11:42 (48,420)

2001/02/05 12:18 (49.419)





I am waiting other images to confirm.



Regards,



Toni Scarmato

I am unable to confirm the object posted by T. Scarmato. There is

nothing visible in 1024 images.



Sebastian Hoenig

Regarding my last post I am in agreement with Sebastian.

On image at 12:42 the point is visible at position (51,417)

but change in brigthness and shape (became faint).

Is noise!!



Regards,



Toni Scarmato

I am also in agreement.  Please, if there is any doubt, don't post

with fewer than 4 data points.



Also, as we are now in our 6th year of operation, we can look at

prior data for some guidance.  Due to the reduction in sensivity

caused by the presence of the pylons, this is a bad time of year

for us.  In the previous 5 years, only 7 Kreutz sungrazers have

been observed in the month of March.  So, don't expect too much

activity.  Things will pick up next month.



Doug

Possible small comet traveling away from sun 11:00 position upper left corner small short tail.lasco c3 900kb.03/06/01 06:42.

Two question,s.How do i put the cordinates in for exact positon.

Do you know why my computer will not show black and white images.It only shows color. thanks for your time.

Dear Doug, dear all.



I want to report this observation because I want to know

if the images at 512 pixel can to produce this observable

effect.



At following position, 512x512 (0,0) top-left corner





2001/03/06 10:18 (69,381)

2001/03/06 10:42 (70,381)?

2001/03/06 11:18 (70,381)

2001/03/06 11:42 (71,381)

2001/03/06 12:18 (72,380)

2001/03/06 12:42 (73,379)



there is a "star" that seem have a relative

motion respect the near brigth star at position





2001/02/06 10:18 (63,382)



If we look the last 3 postions seem that the object move

toward the sun and look the images the effect seem real.



Regards,



Toni Scarmato

Toni and everyone,



	I've compared the two objects and there is no relative

motion between them.  Over a short time series, there are effects

which can cause some small apparent motion, especially in binned

images.  The sensitivity from pixel to pixel changes.  Also, the

objects are sometimes centered in a pixel and sometimes falling

on the boundary of 2 to 4 pixels.  These can all cause image to

image variations which can 'fool' the observer into seeing

apparent motion or changes in brightness which aren't real.



Doug

Suspect object on not sungrazer orbit seem visible in 4

consecuitve LASCO C3 images 1024x1024 (0,0) top-left corner

at positions:





2001/03/07 22:18 (250,16)

2001/03/07 23:18 (254,18)

2001/03/07 23:42 (256,19)(near a star)

2001/03/08 00:18 (256,20)





I am waiting other images to confirm.



Regards,



Toni Scarmato

No object visible in 1024 images at the positions posted by Toni

in his last report.



Sebastian

Regading my last report, on image at 2001/03/08 00:42 

is visible a point of ligth at position (259,21) 

but not seem in agreement with other points.

The following image is at 2001/03/08 13:42.



Regards,



Toni Scarmato

Revision: Sorry, I didn't see that Toni used the 1024 imaegs.

Regarding the positions now it seems that it is a faint object

(perhaps a star because of the positions) next to gamma Pisces.

I don't have any good sky catalogue at the moment so I can't

finally say it is a star. Perhaps anybody out there may help.



Sebastian

The suspect object that report here if I look the images with

a zoom seem a combination of cosmic rays and a faint tail, but 

looking the sequence of 4 images, seem an object moving toward

the sun:



Positions on 1024x0124 (0,0) top left corner:





2001/03/09 11:18 (353,699)

2001/03/09 11:42 (354,698)

2001/03/09 12:18 (355,697)

2001/03/09 12:42 (356,696)





Regards,



Toni Scarmato

Sorry!!!!



In my last report the camera is C3 and I Have wrote tail

instead that star.



Thanks at Sebastian for warning.



Toni Scarmato

Suspect well visible object on LASCO C3 image 1024x1024

(0,0) top-left corner at positions:





2001/03/10 15:18 (136,782)

2001/03/10 15:42 (137,781)

2001/03/10 16:18 (138,780)





I am waiting other images to confirm.

The object, that can to be a star, seem moving toward the sun.



Regards,



Toni Scarmato

The last object posted by Toni indeed is a star.



Sebastian

Object - sungrazer? - in C3 images - 20010310_2142 UT



Brief description of comet:



Not sure. Point like, faint

hard to tell on 512 sizes. 

It goes above 2 stars about 

1/4 way up in lower left. 

===============



Here are the (approximate) XY coordinates of 

the object and an image of the area.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size      X and Y 

of Images            used     Coordinates       

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

20010310_2142.gif  512 x 512   81, 311      

20010310_2218.gif  512 x 512   83, 309

20010310_2318.gif  512 x 512   89, 308

20010310_2342.gif  512 x 512   93, 305  

20010311_0018.gif  512 x 512   95, 305

20010311_0042.gif  512 x 512   97, 305   

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

Michael Boschat

I am not able to confirm Mike B's comet report of yesterday 

evening. Seems to be a mixture between noise, ghost objects and

possibly a star.



Regards, Sebastian

Date: 3/10 2001

Time: 15:18

Telescope: C3

Position: 500,972



and



Date: 3/10 2001

Time: 15:42

Telescope: C3

Position: 452,1003

I've checked all of the reports since my last post.  I don't think

any of these are cometary objects.  The posts are a mix of noise

and stars.  Note, anything moving horizontally is likely to be a

star.  Please rule out that it's a star before posting a report.

Also, for our newbies, never post something seen in only a single

image.  Even if it happened to be real, we could never confirm it.

But physically, we expect real objects to appear in multiple images.



Doug

Possible sungrazer in C3 images - 20010312_1142 UT

Coordinates next post.

Brief description of comet:
Not sure on this.  It is a point
on 4 frames below a star,
but starts by a 'noise' speck.
I have to logon to another system
to get the XY's, don't post
properly on this university
system..

Mike B.

Here are the (approximate) XY coordinates of 

the object.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

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

20010312_1142.gif  512 x 512   92, 295

20010312_1218.gif  512 x 512   94, 293

20010312_1242.gif  512 x 512   95, 295

20010312_1342.gif  512 x 512   97, 290  

      

DISREGARD LAST POSTING...



 I can't see it on the 1418 UT image

and will conclude it was 'noise'. My

level of confidence on this one is 

very low now..



Sorry...



Mike B.

Suspect faint object observed on 4 consecutive Lasco C3 images

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





2001/03/12 14:42 (452,824)

2001/03/12 15:18 (451,820)

2001/03/12 15:42 (450,816)

2001/03/12 16:18 (449,813)



I am waiting other images to confirm.





Regards,



Toni Scarmato

Nothing cometary visible around the positions given by Toni in

the images of 16:18, 16:42 and 17:18. It seems that there is no

comet.



Sebastian

Suspect object moving toward the sun

sungrazing the pylon at left.

Seem visible on 4 consecutive LASCO C3 images 

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





2001/03/13 16:18 (165,803)

2001/03/13 17:18 (169,798)

2001/03/13 17:42 (171,796)

2001/03/13 18:18 (175,794)





Regards,



Toni Scarmato

Possible sungrazer in C3 images - 20010315_0018 UT



Coordinates next post.



Brief description of comet:



If this is one, near the 

occultating disk at about

7 pm position. Hard

to see on 512 images

so my XY's may be off.



Michael Boschat

Here are the (approximate) XY coordinates of 

the object.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

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

20010315_0018.gif   512 x 512    213, 237    

20010315_0042.gif   512 x 512    215, 233 

20010315_0142.gif   512 x 512    217, 232

20010315_0218.gif   512 x 512    219, 230



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

Michael Boschat

On lasco c3 900kb AT(219,552) on 03/15/01 at08:18 im using 800x600 resolution.Is this bright flash cometary or metorite or something else.Thanks for your time.

1) The report by M. Roman is just a cosmic ray hit or piece of

debris.  I'm leaning towards the latter.  See the general

information on http://sungrazer.nascom.nasa.gov/cometform.html

Also, please you returns when posting messages.



2) I cannot confirm the reports of T. Scarmato or M. Boschat.



3) There is a scheduled power outage for the building in which

this web server (and my computer, since they are the same thing)

resides.  Thus, from about 9pm local time Friday night (0200 UT

Saturday) until as soon as Saturday night, but possibly Sunday

night (so early UT on Sunday or Monday).  We don't know when

it'll be back up.  You'll still be able to watch real-time data,

just not report it.  C'est la vie.



4) FYI, I'm off to France on Saturday.   I promise, I'll be in

e-mail contact.  I'll be operating on Central European Time next

week.



Doug

Possible non-Kreutz on top left corner of realtime C2 images



Just like SOHO-103 !



Image                Col Row

Data gap !!!!

20010315_1426_c2.gif 77  958

20010315_1506_c2.gif 123 993

20010315_1526_c2.gif 147 1010



Michael Oates

Mike,



Congratulations! I can confirm the comet. I am just checking 

whether it is visible in C3. I think with that comet you fill

a 11 day gap (11-22 Feb.) where no comet was found till today.



Sebastian

Faint suspect object moving toward the sun, visible on

6 consecutive LASCO C3 images 1024x1024 (0,0) top-left 

corner at approximate positions:





2001/03/15 10:42 (613,782)

2001/03/15 11:18 (613,780)

2001/03/15 11:42 (612,778)

2001/03/15 12:18 (612,776)

2001/03/15 12:42 (612,774)

2001/03/15 14:42 (610,770)?



The object no change in shape and brigthness in random way, 

but I am not sure on this one.





Regards,



Toni Scarmato

Hey, not so quick.  Don't forget I'm the final word on

confirmations.  I'm investigating Mike's claim now.  Let's

wait until the missing images fill in.



Doug

Sorry Doug,



Of course you are the last to confirm but after so many days

without any comet it makes me happy to see one again... :-)



Sebastian

I Have observed the object reported by Mike at positions:



C2 1024x1024 (0,0) top-left corner





2001/03/15 14:26 (77,68)

2001/03/15 14:50 (104,44)

2001/03/15 15:06 (124,32)

2001/03/15 15:26 (148,15)



Seem a comet but I not find the object in C3 images at 1024 pixels.



Regards,



Toni Scarmato

Dear Doug, dear all



I want to report this observation, because the object that

I see is real but seem to have a motion more slow respect

other star.



On a sequence of 14 images 1024x1024 (0,0) top-left corner

the relative motion is observable.



I Have thinked that is an effect due to the mask of the 

pylon. It is possible?



Positions on 5 images:



2001/03/15 10:42 (116,826)

2001/03/15 11:18 (116,826)

2001/03/15 11:42 (117,826)

2001/03/15 12:18 (118,826)

2001/03/15 12:42 (119,826)



I want know your comment.





Regards,



Toni Scarmato

Possible sungrazer in C3 images - 20010315_1818 UT



Coordinates next post.



Brief description of comet:



 Point like. Screwy...

when I loop it looks like

moving away but manual loop

moves towrads sun!



Michael Boschat

Here are the (approximate) XY coordinates of 

the object.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

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

20010315_1818.gif   512 x 512    56, 349     

20010315_1842.gif   512 x 512    59, 347

20010315_1942.gif   512 x 512    61, 345

20010315_2018.gif   512 x 512    63, 344

      

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

Michael Boschat

Dear sirs,Would like to know if this is

a confirmed comet I reported on MARCH 15,01.

If so is there some kind of SOHO confirmation

number i can have to share with my astronomy

clubs and personal reference.THANK YOU.

           MIKE.ROMAN-xxx@xxx

Dear Doug,



I find, in my Atlas Megastar, that the object reported

on my last post it can to be the asteroid VESTA (m1~8.0)



Regards,



Toni Scarmato

I concur with Toni.  That is indeed Vesta.



Mike Roman, I responded yesterday.  The object you reported is not

a comet.



Finally, I'm still waiting for two images from about 1300 UT

yesterday before confirming Mike Oates claim.



Doug

Update: Last reported possible comet in the top left corner of 

realtime C2 images.



3 more images have become available which should enable

this to be confirmed as a non-Kreutz comet.



I want comment on the appearance of this comet: 

If the images are enlarged it appears to have two condensations

one behind the other. This may just be the tail, a double

nucleus, or just an optical aberation. Any comments Doug?



The positions below are made in the centre of the two condensations.

0,0 in the top left corner in 1024x1024 images



Image        Col Row  Time         Date

21086661.fts 13  902  13:27:19.917 2001/03/15

21086662.fts 37  923  13:50:05.504 2001/03/15

21086663.fts 55  938  14:06:05.794 2001/03/15

21086632.fts 77  957  14:26:05.382 2001/03/15

21086633.fts 105 979  14:50:07.668 2001/03/15

21086634.fts 124 993  15:06:06.859 2001/03/15

21086635.fts 148 1009 15:26:05.447 2001/03/15



Michael Oates

Possible archive sungrazer comet  in C2 frames from 08 June 1997



The object is clearly visible in 3 consecutives images (823 to 825).

In these three images the possible comet looks like a faint blob,

faintly condensed, round, with no tail. The aspect and the moving is

coherent. 

Unfortunately it is no possible to see it before and after these images.

22014822.fits and 22014826.fits are in 832x256 format.

In 2201427.fits the object has faded quite a lot and I'm not sure 

of my reported position for this one.

May be Doug will be able to spot it in 512 images (22014816 to 819).

I wonder whether the comet do not cross the path of a faint star in 

these images. In 818 and 819 one can see a faint blob separate from

the star. But I'm not sure that it is really the same object.



All positions measured from the bottom left corner 

in 1024x1024 frames :

      

Ref. image,     X,      Y,  	   Time	,	Date      

22014823.fts	922	167	04:30:06.374    08 June 1997

22014824.fts	916	191	05:00:05.457    08 June 1997

22014825.fts	910	216	05:30:05.540    08 June 1997



22014827.fts	898	265	06:30:05.505    08 June 1997  Uncertain



In 512x512 format: (star and comet ?)

22014818.fts	468	44	02:46:21.935    08 June 1997

22014819.fts	468	45	02:50:07.232    08 June 1997



Xavier Leprette

Possible archive sungrazer comet  in C2 frames from 19 June 1997



The object is clearly visible in 4 consecutives 512x512 images (429 to 432).

The possible comet looks like a bright object, condensed, round, with no tail. 

I think that it is only visible in one 1024x768 image (442) about

three hours after. This one seems to show the same aspect, bright,

condensed and round.



Positions measured from the bottom left corner 

in 512x512 frames :

      

Ref. image,     X,      Y,  	   Time	,	Date      

22015429.fts	460	20	17:23:35.978    19 June 1997

22015430.fts	460	21	17:26:06.376    19 June 1997

22015431.fts	459	22	17:29:51.474    19 June 1997

22015432.fts	459	23	17:33:38.172    19 June 1997



Positions measured from the bottom left corner 

in 1024x768 frame :



22015442.fts	886	37	20:31:07.169    19 June 1997



To Doug,

I've found out this one and the previous one reported as I've checked

the 1997 June again with an improved processing method. I hope that

you will be able to confim them, in spite of the few positions reported.





Xavier Leprette

Possible archive sungrazer comet  in C2 frames from 10 June 1996



The object is clearly visible in 4 consecutives 512x512 images.

The possible comet looks like a faint object, condensed, round, 

with no obvious tail. 

Unfortunately there are no others available images where the object is visible.



Positions measured from the bottom left corner 

in 512x512 frames :

      

Ref. image,     X,      Y,  	   Time	,	Date      

22002150.fts	409	9	21:54:43.638    10 June 1996

22002151.fts	409	10	22:00:10.536    10 June 1996

22002152.fts	409	12	22:05:35.933    10 June 1996

22002153.fts	409	14	22:11:00.830    10 June 1996





Xavier Leprette

Suspect faint object visible on 4 consecutive LASCO C3

images 1024x1024 (0,0) top-left corner at positions:





2001/03/16 20:42 (234,944)

2001/03/16 21:18 (235,943)

2001/03/16 21:42 (236,942)

2001/03/16 22:18 (237,941)





I am searching if it is a star.



Regards,



Toni Scarmato

Dear Doug,



regarding my last report I Have searched on my Atlas Megastar

and I find that at the postions that I Have reported

there is the faint star SAO 128654 (m1~9.2), also if 

seem visible another faint object moving toward the sun.





Regards,



Toni Scarmato

Dear Doug, dear all



the asteroid VESTA (m1~8.0) is in the field of view on LASCO

C3: images 512x512 (0,0) top-left corner at positions:



2001/03/19 12:18 (129,411)

2001/03/19 12:42 (129,411)

2001/03/19 13:42 (130,411)

2001/03/19 14:18 (131,411)





Regards,



Toni Scarmato

Suspect object al right of the pylon seem visible

on 7 LASCO C3 images 1024x1024 (0,0) top-left corner:



Positions:





2001/03/20 12:42 (83,291)?

2001/03/20 13:42 (85,289)

2001/03/20 14:18 (86,288)

2001/03/20 14:42 (87,287)

2001/03/20 15:18 (88,286)

2001/03/20 15:42 (89,285)

2001/03/20 16:42 (91,283)





The object is very hard because travel near the mask of the

pylon.





Regards,



Toni Scarmato

Toni,



recheck your positions. they are not right of the pylon but in

the upper left sector. I could not find any object with a 

cometary appearance close to the pylon inyour images either.



Regards, Sebastian

New sungrazer in C2 real time images.

in bottom right corner.

Slight tail

Image                Row  Col

20010321_1150_c2.gif 9    172

20010321_1206_c2.gif 27   183

20010321_1226_c2.gif 51   201



Michael Oates

New sungrazer in C2 real time images.

in bottom left corner. (Sorry, I said right in last message)

Slight tail



0,0 in bottom right of 1024x1024 images



Image                Row Col

20010321_1150_c2.gif 9   172

20010321_1206_c2.gif 27  183

20010321_1226_c2.gif 51  201



Michael Oates

Possible sungrazing comet in a real-time C2 images now.



It is faint and visible in 4 consecutive images from 2001/03/21 

from 11:50 till 12:50 UT.

The object is moving towards the sun.

 

I'm waiting others images to confirm my report. 

Positions in a next e-mail.



Xavier Leprette

UPDATE: New sungrazer in C2 real time images.

in bottom left corner. Slight tail.



This has faded rather quickly, I just hope there are enough

images to confirm this. Maybe a check of the raw C3 images

may show the comet. It may not show in the 5th C2 image, and

there is a data gap after 12:50 so we will have to wait and see.



0,0 in bottom right of 1024x1024 images



Image                Row Col

20010321_1150_c2.gif 9   172

20010321_1206_c2.gif 27  183

20010321_1226_c2.gif 51  201

20010321_1250_c2.gif 73  217 Faint!



Michael Oates

Sorry Doug,



Regarding my last report I Have posted the positions in mm.



Correct positions in pixel on 4 consecuitve images C3

1024x1024 (0,0) top-left corner



2001/03/20 15:18 (250,810)

2001/03/20 15:42 (251,809)

2001/03/20 16:42 (253,807)

2001/03/20 17:42 (255,805)



At left of the pylon. I am measuring other positions.



Thanks Sebastian.





Regards,



Toni Scarmato 

Sorry again!!!!!



At rigth of the pylon!!!!!



Toni

Other positions regarding my report:



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





2001/03/20 12:42 (244,811)?

2001/03/20 13:42 (247,813)

2001/03/20 14:18 (248,812)

2001/03/20 14:42 (249,811)



Comment:



Looking the B/W images is more easy to see the object

to move, into the noise, toward the Sun.



Regards,



Toni Scarmato

Suspect object on 5 consecutive LASCO C3 images

1024x0124 (0,0) top-left corner at left of the pylon





Approximate Positions:



2001/03/22 04:18 (244,729)

2001/03/22 04:42 (245,728)

2001/03/22 05:18 (246,727)

2001/03/22 05:42 (247,726)

2001/03/22 06:18 (248,725)



Regards,



Toni Scarmato

Another suspect object visible in 6 consecuitve LASCO C3 images

1024x1024 (0,0) top-left corner





Positions:



2001/03/22 03:42 (167,901)

2001/03/22 04:18 (168,900)

2001/03/22 04:42 (169,899)

2001/03/22 05:18 (171,898)

2001/03/22 05:42 (173,897)?

2001/03/22 06:18 (174,896)





Comment:



The object is well visible near the pylon at right.





Regards,



Toni Scarmato

Hi all.



1st: I have chekced all 3 reports posted by Toni. I could not

 identify any object cometary.



2nd: Wow Mike, I hope there is a missing image to verify.



Regards, Sebastian

Dear Doug,



regarding my last report I have searched on my atlas and

I find that the object seem to be the star SAO 128840

m1~8.7 near the star SAO 128824 m1~8.9





Regards,



Toni Scarmato

OFF TOPIC ----



 Farwell to the Soviet Union's 

MIR Space Station...will be missed :(



 Now if only a bright comet would be

found before it plunges into the atmosphere.



Mike

I have just inspected all the C2 images from August 1996

This is what I have found...



Possible Sungrazer 1996/08/25

This what I will call an X/Comet i.e. it may be a 

comet but there is not sufficient data to prove it.



It is a faint round diffuse object with no tail.



Image        Col Row  Time         Date

22004135.fts 974 105  21:08:22.803 1996/08/25

22004136.fts 946 130  22:00:05.374 1996/08/25

22004137.fts 911 159  23:00:06.638 1996/08/25





SOHO-2

I have found two images of what I believe is SOHO-2 in C2 images

This comet is only reported to have been seen in C3 images.



The first image looks like comet with a hint of a tail, the 

second image shows an elongated smudge as if the comet has

disintegrated, the position of this image is only approx.



Image        Col  Row Time         Date

22005801.fts 1011 22  17:27:00.462 1996/08/30

22005802.fts 981  43  17:51:05.849 1996/08/30



Michael Oates

Re: August 1996 Reports



Sorry, I should have said that the image sizes for all these

are 1024x576 and that 0,0 is in the bottom left corner with the

north at the top



Michael Oates

Suspect object visble on 4 consecutive LASCO C3 images

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





2001/03/23 15:18 (363,532)

2001/03/23 15:42 (370,532)

2001/03/23 16:43 (374,532)

2001/03/23 17:18 (376,532)



Very strange object moving form left to right. 

No change in shape and brigthness in random way.



Regards,



Toni Scarmato

Sorry!!!!



The first position of the my last report is:



2001/03/23 15:18 (366,532)





Toni

Dear Doug,



I Have searched at positions of the my last report and

I find the star SAO 109142 m1~8.4 A.R. 00 19 57 decl. +01 34 57.

Yet I Have reported it because the shift in x axis

on the 4 images is of 4 pixels.



Regards,



Toni Scarmato

Possible sungrazer in C3 images - 20010324_2218 UT



Coordinates next post.



Brief description of comet:



possible....waiting for next image

connection very slow



Michael Boschat

CORRECTION TO MY POST --- DATE SHOULD BE 25th

NOT 24th!! forgot to change it!                                                                                                                                                              michael boschat 



   SHOULD READ THIS WAY!****

                                                                                                                                                              xxx@xxx 

 Possible sungrazer in C3 images - 20010325_2218 UT



 Coordinates next post.



 Brief description of comet:



 possible....waiting for next image

 connection very slow



 Michael Boschat

Here are the (approximate) XY coordinates of 

the object.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

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

20010325_2218.gif  512 x 512   85, 350      

20010325_2318.gif  512 x 512   88, 346

20010325_2342.gif  512 x 512   91, 345

20010326_0018.gif  512 x 512   92, 343

20010326_0042.gif  512 x 512   94, 342  

      

Mike Boschat

UPDATE on my last report of sungrazer comet

          at 20010325_2218 UT



It "IS" a sungrazer in C3!



Brief description of comet:



brighting a bit now

and seen in 2 more images at: 

20010326_0142.gif  512 x 512  at  99, 339  

20010326_0218.gif  512 x 512  at 101, 336



Remember my XY's are off a bit!



It is to the left of the pylon

and starts above a star about 1/8

or so up from the bottom of the frame.



Can't miss this one.





Michael Boschat

Possible comet in LASCO C3, starting 20010325_0542_c3.gif



Date: Mar 25, 2001



Description:

IS THIS THAT ONE OF MIKE BOSCHAT? I doubt... He said his xy are 

off a bit but when I compare my positions to that of Mike there's

a big gap. Visible left of the pylon.

Comparing his y of 2:18 I get 672 (1024x1024) and my y of 5:42 is

at 710!!!!!



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



Time	(x,y)



05:42	232,710

06:18	237,706

06:42	242,704





Sebastian Hoenig

Okay, forget it!



Mike, it's yours!!!!!!!!!!!!!!!



I forgot to convert from 460 to 512.

So this is a preconfirmation message. So Pre-congats!



Regards, Sebastian

By the way:



My potiotions for what I think is Mike B's comet must be for

March, 26th of course.



Sebastian

I can definitely confirm Michael Boschats new comet in March 25 C3 images.  It is fairly obvious with a good hint of tail.



Congratulations Michael!



Terry Lovejoy

What a nice welcome back I get.



So, here's my take on this comet.  I do confirm it.  M. Boschat

gets the credit.  It's brighter than average, but probably not

by too much.



Doug



The comet lands smack on top of the star HD 3945 at 05:30 UT

on 2001/03/26.  (Well, it actually brackets it in the images at

05:18 and 05:42)



#DETECTOR: C3

#IMAGE_TYPE: RUNNING DIFFERENCE

# HEIGHT   DATE     TIME   ANGLE  TEL  FC    COL     ROW    Vmag

 24.48 2001/03/25 23:42:05 127.6   C3  10   180.0   272.0

 24.06 2001/03/26 00:18:05 127.5   C3  10   185.0   277.0

 23.80 2001/03/26 00:42:06 127.6   C3  10   189.0   279.0

 23.26 2001/03/26 01:42:05 127.5   C3  10   196.0   285.0   7.86

 22.84 2001/03/26 02:18:06 127.6   C3  10   202.0   289.0   7.80

 22.58 2001/03/26 02:42:06 127.7   C3  10   206.0   291.0   7.76

 22.22 2001/03/26 03:18:05 127.5   C3  10   210.0   296.0   7.38

 21.92 2001/03/26 03:42:06 127.5   C3  10   214.0   299.0   7.40

 21.57 2001/03/26 04:18:06 127.8   C3  10   220.0   301.0   7.62

 21.34 2001/03/26 04:42:05 127.5   C3  10   222.0   305.0   7.59

 20.25 2001/03/26 06:18:07 127.6   C3  10   237.0   316.0   7.21

 20.01 2001/03/26 06:42:06 127.5   C3  10   240.0   319.0   7.07

 18.68 2001/03/26 08:42:05 127.5   C3  10   258.0   333.0   6.86

 18.26 2001/03/26 09:18:05 127.5   C3  10   264.0   337.0   6.82

 17.97 2001/03/26 09:42:06 127.5   C3  10   268.0   340.0   6.87

 17.31 2001/03/26 10:42:08 127.5   C3  10   277.0   347.0   6.69

 16.94 2001/03/26 11:18:05 127.5   C3  10   282.0   351.0   6.60

 16.70 2001/03/26 11:42:05 127.4   C3  10   285.0   354.0   6.36

Dear Doug, dear all.



I Have observed now the new comet reported by M. Boscath.

Seem that it is preceded by another piece that became

brigth at 12:42



Positions: 1024x1024 (0,0) top-left corner



2001/03/26 11:18 (288,668)

2001/03/26 11:42 (293,664)

2001/03/26 12:18 (297,660)

2001/03/26 12:42 (300,657)



I Want know your comment.





Regards,



Toni Scarmato 

Concerning the recent "split off" report:



According to what Mike Oates said after the SOHO-294 item, my

opinion is:



Looking back at the last bright comets I would say that we all 

must have won the experience that it is futile to post any 

fragmented pieces close to bright comet. There are so many 

effects that can appear as a fragment that no one can finally say 

anything. Noise can be everywhere, in front of a comet and even 

in the comet's tail or coma.



If anybody doesn't think so: okay, that'S just my opinion.



Regards, Sebastian

Mike B's comet seems to have passed its best times and is slightly

fading and bursting. So I expect getting fireworks in C2.



Sebastian

Boschat's comet is coming in C2 now. It's visible with a nice 

tail from 3 images from 26/03 23:50 to 24/03 0:26 UT.

May be a second frament is following behind, but I'm not sure.



Xavier Leprette

Suspect object moving on a not-Kreutz orbit seem visible

on 5 consecutive LASCO C3 images 1024x1024 (0,0) top-left corner





Approximate Positions:



2001/03/27 09:42 (202,362)

2001/03/27 10:42 (206,357)

2001/03/27 11:18 (208,354)

2001/03/27 11:42 (210,352)

2001/03/27 12:18 (212,350)





Comment



The next images are necessary to confirm.

Regards,



Toni Scarmato

Dear Doug,



regarding my last report, the object seem to be visible

also on images at:



2001/03/27 13:42 (215,354)

2001/03/27 14:18 (217,352)





Is diffuse and moving toward the top.  In the same zone

there is a faint star that move from left to right.



Regards,



Toni Scarmato

Possible "fragment" in sungrazer in C2 images - 20010327_0150 UT



It appears as a small "dot" in front of the comet

in these two images only..



Here are the (approximate) XY coordinates of 

the object and an image of the area.



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

x-coordinates are probably correct, 

but y-coordinates may be off by

several pixels.





0,460 in lower left corner



                  LASCO C3 IMAGES

     

Date & UT            Size         X and Y 

of Images            used       Coordinates       

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

20010327_0150.gif  512 x 512   89, 351

20010327_0206.gif  512 x 512   98, 345

  

Michael Boschat

I've looked at the 'fragment' reports for the comet from Mar 25-27 and

and don't see anything the least bit convincing.  A report with

only 2 data points?  Please.



And I can't find anything at the positions Toni reported for

March 26 or 27.  Toni, I think you're looking for stuff

down in the noise.  We can't positively identify anything

at the level of the noise.  We have to be certain of an object.

You've seen enough of the ones I have confirmed now to know what

sort of object to be looking for.



I'll try to get to the archive claims of M. Oates ASAP.



 

Oops.  And of course, I'll be getting to the archive claims

of X. Laprette as well.



Doug

Looking through C3 Telescope image, I spotted a comet like image in at least four frames traveling just above the Southwest veiwing obstruction inward towards the Sun.  The specific frame is 2001/03/26/15:18.

Donn Appleby

Time:22:10PM/March 27, 2001

Possible sungrazer comet in archive LASCO C2 images

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

The object seem visible on 7 cosecutives images at positions:



2001/03/20 03:06 (86,499)

2001/03/20 03:26 (88,497)

2001/03/20 03:50 (91,493)

2001/03/20 04:06 (93,490)

2001/03/20 04:26 (97,486)

2001/03/20 04:50 (100,483)?

2001/03/20 05:06 (103,480)?



The object is diffuse and seem too like the comet SOHO-282. 

The positions are approximate.





Regards,



Toni Scarmato

Regarding the report by T. Scarmato of a C2 object on 20 Mar 2001.

I am not able to find a moving object with a consistent shape

at the positions reported.



Doug

Venus is just off the top edge of the C3 field now.  You can see just a slight glow at the field edge.



Terry