SOHO-LASCO Comet Reports for 200301

Jan 01 2003 22:37:26 mike boschat
mboschat@eastlink.ca
Object in C2 at 20030102_0131 UT


As usual no new images in.
small fuzzy but not sure.
Begins 1/8 top of second "0"
in year.

****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,460 in lower left corner

LASCO C3 IMAGES - 1024 x 1024

YYYY-MM-DD HH:MM X Y
---------- ----- --- ---
2003-01-02 0131 64 379
0154 78 371
0206 90 363
----------------
Michael Boschat
Jan 01 2003 22:38:52 mike boschat
mboschat@eastlink.ca
Last Post SHOULD BE ::::


Object in C3! not C2

Mike B.
Jan 01 2003 22:41:41 mike boschat
mboschat@eastlink.ca
ANOTHER CORRECTION:


Object is in C2! Aghhh! tired!
Sorry!

here is PROPER re-post:

Object in C2 at 20030102_0131 UT

As usual no new images in.
small fuzzy but not sure.
Begins 1/8 top of second "0"
in year.

****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,460 in lower left corner

LASCO C2 IMAGES - 1024 x 1024

YYYY-MM-DD HH:MM X Y
---------- ----- --- ---
2003-01-02 0131 64 379
0154 78 371
0206 90 363
----------------
Michael Boschat
Jan 01 2003 22:48:05 mike boschat
mboschat@eastlink.ca
UPDATE on Object in C2 at 20030102_0131 UT


fuzzy. New images in looks like
I can follow it to 0230 UT but
seem to loose it at 0254 UT.

****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,460 in lower left corner

LASCO C2 IMAGES - 1024 x 1024

YYYY-MM-DD HH:MM X Y
---------- ----- --- ---
2003-01-02 0131 64 379
0154 78 371
0206 90 363
0230 103 352
0254 115 342 (?)
----------------
Michael Boschat
Jan 02 2003 15:00:12 Sidda Eraiah
siddalinga@yahoo.com
A Very happy new year to you all.


I am a novice in identifying comets using images from this website, please correct me if the following report is of some stars in the view of C2.

Possible comets - 2 of them - in C2:

date time Comet1 Comet2
2003/01/01 18:06 60,416
2003/01/01 18:30 64,416
2003/01/01 18:54 69,417
2003/01/01 19:31 79,417 13,395
2003/01/01 19:54 81,418 20,395
2003/01/01 20:30 91,419 27,395
2003/01/01 22:06 110,422 46,398
2003/01/01 23:30 128,423 63,401

These co-ordinates are based on the C2 color images from http://lasco-www.nrl.navy.mil/javagif/jpg24/ and the top left corner is 0,0.

Thanks,
Sidda
Jan 02 2003 19:39:02 Sebastian Hönig
Sebastian@sungrazer.org
Sidda,


Your object #1: Tycho2 686000863 (4.86 mag)
Your object #2: Tycho2 686000304 (5 mag)

Have you already followed the tutorial that is offered
to newbies and read the hints on the report form page?
They are of big help and there you can read that
stars travel from left to right with almost no change
of y-coordinates. Also note that C2 is unfavourable
for searches at this time of year.

Regards, Sebastian
Jan 03 2003 05:41:17 Alasdair Munn
alasdair@amunn.com
Spotted at 8:48pm 3rd January, 2003 from moving car driving on F3 near Brooklyn NSW.  The comet was travelling South to North and appeared to be very low in the sky slightly South of Brooklyn.  The comet was a bright blue and appeared for around 1 to 2 seconds before appearing to burn out.  the sky was fairly dark but after burnout there were brief traces of smoke visible.
Jan 03 2003 07:56:18 Fabio Zucconi
zucfabio@libero.it
Possible sungrazer very speed in 20030101 in C3

(0,0 in the upper left corner)

20030101_1518 (114,400)
20030101_1542 (169,419) ?
20030101_1618 (219,442)
20030101_1642 (290,478)
20030101_1718 (443,514) !

Regards, Fabio Zucconi
Jan 03 2003 08:24:09 Fabio Zucconi
zucfabio@libero.it
[ERRATA CORRIGE in the last observation]


Possible sungrazer very speed in 20030101 in C3

(0,0 in the upper left corner)



20030101_1518 (114,400)

20030101_1542 (169,419) ?

20030101_1618 (219,442)

20030101_1642 (290,478)

20030101_1718 (403,553) !



Regards, Fabio Zucconi
Jan 03 2003 14:13:19 Tony Hoffman
tonyhoffman@earthlink.net
Fabio,


Your positions would indicate a motion much, much too fast for a C3 sungrazer. Some of your positions are noise, some stars (and some, nothing--though there is noise or stars about 5 pixels away). You'd do well to examine the positions/motions of recent comets to see how they appear and move.

Alasdair,
What you saw was a bright meteor, not a comet.

Regards,
Tony Hoffman
Jan 03 2003 18:03:15 mike boschat
mboschat@eastlink.ca
Possible comet in C3 at 20030101_1942 UT


To left of "bar" 1/4 way up. Small.

****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,460 in lower left corner

LASCO C3 IMAGES - 1024 x 1024

YYYY-MM-DD HH:MM X Y
---------- ----- --- ---
2003-01-03 1942 164, 209
2018 168, 205
2042 170, 203
2118 175, 199
----------------
Michael Boschat
Jan 06 2003 16:49:42 Rob Matson
matsonr@saic.com
2003 Jan 6 -- Kreutz comet in real-time C3 beginning at 18:18.

1024x1024 coordinates (0,0 in upper left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2003-01-06 18:18 347 625
18:42 349 621
19:42 357 611
20:18 361 606
20:42 364 602 (coincident w/star?)

--Rob
Jan 06 2003 16:53:44 David Evans
dave.nokia3330@orange.net
Possible comet in C3 real-time images of 2003/01/06


18:18 348, 625
18:42 350, 622
19:42 357, 612
20:18 362, 605
20:42 364, 602 (slightly overlaps star image)

Could be noise... Monitoring and awaiting more images.

- Dave
Jan 06 2003 17:01:35 David Evans
dave.nokia3330@orange.net
Well done Rob :)


A nice early one for the New Year *smiles*.

- Dave
Jan 08 2003 10:57:59 Karel Prokes
kaprkapr@yahoo.com
Object in 512x512 C3 images from 2003/01/08

0,0 top left

05:42 2, 152
07:42 8, 152
08:42 10, 152
09:18 12, 152
09:42 14, 152
10:24 16, 152

Looks like bright a little bit non-spherical star.
It moves faster than other stars and I have no idea
what it can be.
Karel

Jan 08 2003 11:03:50 Maik Meyer
maik@comethunter.de
Karel,


this is Mercury. See also http://sungrazer.nascom.nasa.gov/transits_2003.html
If something moves horizontally it is most likely a star or a planet. Transits can be found on the above page, stars should be checked
with a planetarium software.

Maik
Jan 08 2003 18:29:09 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello all, I hope everyone is enjoying the New Year.  The results

of all reports since my last post are below...

SOHO# Discoverer Date Camera
----------------------------------------
575 R. Kracht 02/12/18 C2
576? R. Matson 02/12/19 C2 PENDING
577? X. Leprette 02/12/20 C2 PENDING
578 R. Kracht 02/12/26 C2
579 R. Matson 03/01/06 C3

Note that the SOHO numbering is only certain for the first comet,
SOHO575.

Derek
Jan 09 2003 17:05:13 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Regarding the pending claims, R. Matson's Meyer-group claim of 

02/12/19 is classified as real and X. Leprette's Kreutz claim of
02/12/20 is declared an X-comet. The reason for x-comet status is
because there are simply not enough points for an object that
changes brightness and appearance to such extremes, regardless of
whether the brightness differences are due to C2 vignetting. Of
course, I do agree that the object moves very Kreutz-like...hence
the X-comet status. The modified table of recently confirmed
comets is below.

SOHO# Discoverer Date Camera
----------------------------------------
575 R. Kracht 02/12/18 C2
576 R. Matson 02/12/19 C2
577 R. Kracht 02/12/26 C2
578 R. Matson 03/01/06 C3


Derek
Jan 10 2003 20:56:17 XingMing Zhou
zh_x_m@163.net
Possible Kreutz comet in real-time C2 images.

0,0 in upper left corner

Images Size X, Y

20030110_2306_c2.gif 512 x 512 3, 385
20030110_2330_c2.gif 512 x 512 10, 373
20030110_2354_c2.gif 512 x 512 18, 362

Regards, XingMing Zhou
Jan 12 2003 06:11:15 Scarmato Toni
toniscarmato@libero.it
Possible comet in C3.


Positions 512x152 0,0 top-left

20030111

0418 144,405
0518 144,403
0542 144,402
0618 144,400

Regards,

Toni Scarmato
Jan 12 2003 14:08:16 David Evans
dave.nokia3330@orange.net
A possible faint Kreutz in archive C2 images of 2002/05/14.


Should this object be confirmed, it would mean that three Kreutz
comets would be visible in C2 at the same time.

Over the time period below, the bright comet is the one found by
Kazimieras Cernis, the faint comet to the left is the one found
by Michael Oates, and this report concerns a possible comet
situated to the right of Cernis' find...

The object is very faint, but by increasing the contrast it is
much easier to view. Both the speed and trajectory seem just about right for its position in the C2 frame.

Be patient if you cannot see it at first... This is perhaps a
candidate for one of Dereks 'alternative' methods of detection.

2002/05/14 ( 1024 x 1024 gif images. 0,0 Top-Left )

17:26 802, 1004
17:50 802, 984
18:06 803, 969
18:26 803, 951
18:50 803, 932

With normal monitor settings I can just about detect it... Can
anyone else see this faint, vertically moving object?

- Dave

Jan 12 2003 16:36:23 David Evans
dave.nokia3330@orange.net
Another possible faint Kreutz in archive C2, found in 8 images

of 2002/05/20.

1024 x 1024 gifs. 0,0 Top-Left

11:26 492, 1009
11:50 500, 994
12:06 505, 984
12:26 511, 971
12:50 518, 955
13:27 529, 930
13:50 534, 915
14:06 539, 905

Very small and faint. The object is just visible (by viewing in
a darkened room) with normal monitor settings up to 12:50, then
increased contrast is required thereafter.

Regards,

- Dave

Jan 12 2003 17:40:05 David Evans
dave.nokia3330@orange.net
Possible faint Kreutz in archive C2, found in 5 images

of 2002/06/13.

1024 x 1024 gifs. 0,0 Top-Left

10:54 850, 1011
11:06 849, 1003
11:30 847, 987
11:54 845, 972
12:06 844, 964

Regards,

- Dave

Jan 13 2003 07:23:40 Sebastian Hönig
Sebastian@sungrazer.org
Dave,


your last object was already rejected by Doug in
June. So if the other 2 objects are fainter than
that one do not expect them to be real.

Regards, Sebastian
Jan 13 2003 14:03:28 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I cannot confirm any new comets.


Dave: I see nothing but background noise for your claims of a
comet in 02/05/20 and 02/05/14 C2 images...I think you're
looking too far into the noise. Your 02/06/13 report was
declared an X-comet belonging to X. Leprette back in June.

Toni: I see nothing at your given positions.

XingMing: Just cosmic rays.



Derek
Jan 14 2003 21:05:14 Rob Matson
matsonr@saic.com
2003 Jan 14/15 -- Bright Kreutz comet in real-time C3 beginning at least

as early as 23:18. 512x512 B&W coordinates (0,0 in upper left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2003-01-14 23:18 81 379
23:42 82 377
2003-01-15 00:18 84 375
00:42 85 374
01:42 88 370

--Rob
Jan 14 2003 23:00:59 Rob Matson
matsonr@saic.com
2003 Jan 14/15 -- A 2nd Kreutz comet leads the one I reported earlier.

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

Comet 1 Comet 2
YYYY-MM-DD HH:MM Col Row Col Row
---------- ----- --- --- --- ---
2003-01-14 23:18 81 379
23:42 82 377
2003-01-15 00:18 84 375
00:42 85 374
01:42 88 370
02:18 90 368 133 341
02:42 91 367 135 340
03:42 94 364 138 336

--Rob
Jan 15 2003 11:50:15 Maik Meyer
maik@comethunter.de
Confirmation of Rob's two Kreutz comets.


Maik
Jan 15 2003 17:44:16 Timothy Trice
timothytrice@hotmail.com
This is my first post and I'm rather confident this is not debris.  What I'm not confident is whether it has been discovered before.  It's on the Real Time C3 camera between 15 0218 and 15 1642.  If this is one of the ones discovered earlier by Rob, please forgive me.  The only reason I'm posting is because my coordinates did not match up with his.  I obtained mine from the Navy site using the Java Console on I.E. 6.0 so maybe he's just using a different program.  Anyway, here are the coordinates and times with 0,0 in lower left hand corner.  


Point X Y YYYYMMDD HHMM Julmins Height(km)
0 181 282 20030115 0218 4226538 1.703E7
1 182 285 20030115 0242 4226562 1.693E7
2 186 289 20030115 0318 4226598 1.670E7
3 189 293 20030115 0342 4226622 1.650E7
4 193 296 20030115 0418 4226658 1.630E7
5 199 303 20030115 0518 4226718 1.594E7
6 201 306 20030115 0542 4226742 1.580E7
7 180 282 20030115 0218 4226538 1.706E7
8 182 285 20030115 0242 4226562 1.693E7
9 187 289 20030115 0318 4226598 1.667E7
10 189 292 20030115 0342 4226622 1.653E7
11 192 296 20030115 0418 4226658 1.633E7
12 199 302 20030115 0518 4226718 1.596E7
13 201 306 20030115 0542 4226742 1.580E7
14 205 310 20030115 0618 4226778 1.557E7
15 207 313 20030115 0642 4226802 1.544E7
16 213 319 20030115 0742 4226862 1.510E7
17 217 324 20030115 0818 4226898 1.485E7
18 220 327 20030115 0842 4226922 1.468E7
19 224 331 20030115 0918 4226958 1.445E7
20 226 334 20030115 0942 4226982 1.432E7
21 230 338 20030115 1020 4227020 1.409E7
22 232 341 20030115 1042 4227042 1.396E7
23 271 380 20030115 1618 4227378 1.177E7
24 275 384 20030115 1642 4227402 1.155E7
25 278 389 20030115 1718 4227438 1.134E7
26 281 392 20030115 1742 4227462 1.117E7
27 286 396 20030115 1818 4227498 1.091E7
28 297 407 20030115 1942 4227582 1.030E7

Again, sorry if this is the same one but I tried to be very certain, thus the coordinates.

Sincerely,

Tim Trice
Jan 15 2003 19:25:08 Tony Hoffman
tonyhoffman@earthlink.net
Tim--


Your comet is the same as Rob's "Comet 1". To convert between
512 x 512 and 1024 x 1024, simply double the x,y values for the former. To account for the fact that you are measuring from the lower left and he from the upper right, you need to subtract his values from 1024 (after doubling, and you will see that the values are very close).If you have questions about converting
coordinates (and it's important to learn to do so to avoid
duplicate claims for comets) or other aspects of SOHO comet
hunting, feel free to bring them to http://groups.yahoo.com/group/sohohunter/

--Tony Hoffman
Jan 15 2003 21:03:54 Nicholas Previsich
nick.kay@gci.net
Confirmation of object (Comet 1?) discussed in last post,

now showing a small tail in most recent C3 image.

Positions from 1024x1024 C3 GIF using Java tool, most recent image

dated 20030115 1942 UTC:



sequence no. X Y


20 218 324

21 220 327

22 224 330

23 226 334

24 230 336


Regards- N. Previsich
Jan 15 2003 21:39:58 Nicholas Previsich
nick.kay@gci.net
Re my previous post: Is this in fact the same object as has

been recently discussed? I see only one unmistakable comet
with consistent motion, increasing brightness and a nascent tail.
Jan 15 2003 22:26:39 mike boschat
mboschat@eastlink.ca
I can see the 2 comets reported on

the old images which have NOT been updated
as usual!
The 1st one is half way up, the bright
one is unmistakable.

Mb
Jan 16 2003 08:30:32 Cary Oler
oler@spacew.com
Very obvious comet in C3. Visible from roughly 10:42 UTC on 15 Jan 

2003 and onward. Visible just above the occulting disk arm,
travelling toward the southeastern solar limb. Very obvious tail.

Probably already noted by someone else long ago. Just thought I'd
report it, just in case it was missed by some miracle.

Jan 16 2003 09:16:02 Karel Prokes
kaprkapr@yahoo.com
Object in C3 512x512, 0,0 top left

2993/01/15 1:42 88 370
2:18 90 368
2:42 91 367
3:18 93 365
3:42 94 364
4:18 96 361
I do not know where to look for more images.
I apologize if somebody already reported this object.
Jan 16 2003 09:26:49 Maik Meyer
maik@comethunter.de
Tim, Nicholas, Cary and Karel,


you have all reported again the brighter one of the two Kreutz comets
found by Rob Matson on Jan. 14 (Posting of Jan 14 2003 21:05:14 and
23:00:59). Please, before making any posting, check if the object
wasn't reported before by looking at the previous reports and
comparing the coordinates of the reported objects to avoid multiple
postings of one and the same object.

Maik
Jan 16 2003 12:38:38 Kazimieras Cernis
cernis@itpa.lt
R. Matson' comet in C2.

0,0 in top-left corner in 1024x1024 images.
Date Time x y
2003/01/16 6:54 17 631
7:31 62 602
7:54 96 583
8:06 110 574
Kazimieras Cernis
Jan 16 2003 16:40:54 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, the two new comets are listed below. I tried to gather

a possible observing campaign for the bright one (SOHO 579)
but it was not possible for various reasons. However,
we have been gearing up for C/2002 X5. Right now we're looking
at a few blue and red filter observations an hour in addition to
one traditional clear observation. The blue and reds will be used
to measure the deflection between the ion and dust tails...and
to hopefully see a tail discontinuity when the comet crosses the
current sheet. Some of these color images will be overexposed on
purpose in hopes of bringing out fine detail in the tail. During
this time, C2 observations will possibly be half-resolution and
only 2 per hour. At perihelion, I'm hoping to regain
full-resolutin in C2 as the comet could possibly skim inside the
C2 FOV. However, none of this is certain as of right now.

SOHO# Discoverer Date Camera
------------------------------------------
579 R. Matson 03/01/14-16 C2,C3
580 R. Matson 03/01/15 C3


Derek
Jan 16 2003 20:46:02 XingMing Zhou
zh_x_m@163.net
A Meyer group comet in real-time C2 images.

visble from 03/01/16 23:30 to 03/01/17 01:31.

Regards, XingMing Zhou
Jan 16 2003 20:55:38 XingMing Zhou
zh_x_m@163.net
Update

A Meyer group comet in real-time C2 images.
0,0 in upper left corner

Images Size X, Y

20030116_2130_c2.gif 512 x 512 65, 125
...
20030116_2330_c2.gif 512 x 512 129, 65
20030116_2354_c2.gif 512 x 512 142, 54
20030117_0006_c2.gif 512 x 512 149, 49
20030117_0030_c2.gif 512 x 512 163, 38
20030117_0054_c2.gif 512 x 512 177, 28
20030117_0131_c2.gif 512 x 512 198, 13(B/W)

Regards, XingMing Zhou
Jan 16 2003 22:06:50 mike boschat
mboschat@eastlink.ca
Confirm XingMing Zhou find.

Fairly bright one.

MB
Jan 17 2003 03:33:49 Maik Meyer
maik@comethunter.de
I also confirm XingMing's Meyer group comet (presumably the 38th -

I should start thinking about the prize for the 50th ;) ). I can
detect it earliest on 19:31 UT until 01:54 UT on the 17th. I have
not detected it in C3.

Maik
Jan 18 2003 08:23:07 David Evans
dave.nokia3330@orange.net
Maik -- 


I believe the comet found by XingMing Zhou may indeed be visible
in C3 at the following positions -

>> Viewing at 200% magnification <<. 1024 x 1024. 0,0 Top-Left.

2003/01/17

03:18 519, 372
03:42 525, 368
04:18 533, 365
04:42 539, 362
05:18 548, 359
05:42 554, 357
06:18 562, 355
06:42 567, 353
The comet is lost in bright streamer at this point.

Congrats to XingMing for his find and also congrats to you Maik
for another new addition to the Meyer family...

- Dave
Jan 18 2003 09:59:51 Maik Meyer
maik@comethunter.de
Dave,


you are right - I was simply looking too late. After a long time
a Meyer group comet which is visible in C3, too. Thanks for
pointing out!

Maik
Jan 19 2003 14:38:36 Michael Oates
mike@ph.u-net.com
Possible comet in realtime (yesterdays) C3 images


(0,0 in BOTTOM LEFT corner in 1024x1024 images)
Image Col Row
20030118_1942_c3.gif 321 142
plus in lots more images


Michael Oates
Jan 19 2003 14:41:48 Michael Oates
mike@ph.u-net.com
Correction

Possible comet in realtime (yesterdays) C3 images

(0,0 in BOTTOM LEFT corner in 1024x1024 images)
Image Col Row
20030118_1942_c3.gif 321 412 - corrected position
plus in lots more images
up to
20030119_0342_c3.gif

Michael Oates
Jan 19 2003 14:54:26 Michael Oates
mike@ph.u-net.com
Update

Kreutz comet in realtime (yesterdays) C3 images

(0,0 in BOTTOM LEFT corner in 1024x1024 images)
Image Col Row
20030118_1942_c3.gif 321 412
20030118_2018_c3.gif 325 416
20030118_2042_c3.gif 329 419
20030118_2118_c3.gif 335 425
20030118_2218_c3.gif 343 433

Can be seen up to 20030119_0342_c3.gif and does not
appear in C2 images. There is no need to confirm, I
have posted enough already!!

Michael Oates
Jan 19 2003 18:35:13 David Evans
dave.nokia3330@orange.net
Possible faint Kreutz preceeding the find of Michael Oates,

visible in 4 images only.

200% Magnification

C3. 1024x1024. 0,0 Top-Left

2003/01/18

19:42 353, 582
20:18 360, 575
20:42 363, 572
21:18 370, 566

- Dave

Jan 19 2003 19:53:05 David Evans
dave.nokia3330@orange.net
UPDATE


Possible faint Kreutz preceeding the find of Michael Oates.

4 further positions now available...

200% Magnification

C3. 1024x1024. 0,0 Top-Left

2003/01/18

18:42 343, 593
19:42 353, 582
20:18 360, 575
20:42 363, 572
21:18 370, 566
22:18 380, 556
23:18 390, 548
00:18 400, 540

The object appears to share the same path as Mike's comet...

- Dave

Jan 19 2003 20:59:53 mike boschat
mboschat@eastlink.ca
Possible comet C3 at 20020119_1942 UT


Diffuse looking.

****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,460 in lower left corner

LASCO C3 IMAGES - 1024 x 1024

YYYY-MM-DD HH:MM X Y
---------- ----- --- ---
2003-01-19 1942 301 85
2142 305 81
2218 309 75
2318 312 70
2342 320 64

----------------
Michael Boschat
Jan 20 2003 13:21:27 Francisco Mardones
kcosa@patagoniachile.cl
Possible Comet at C3 at 20030119_0418 UT

LASCO C3 IMAGES:
YYYY-MM-DD HH:MM X Y
2003 01 19 04:18 110 232
05:18 140 220
05:42 228 188
06:18 242 176


fRANCISCO mARDONES
Jan 20 2003 18:29:24 David Evans
dave.nokia3330@orange.net
Possible comet in real-time C3


Lasco B/W images

512x512. 0,0 Top-Left


20:42 166, 308
21:18 168, 306

update to follow...

- Dave

Jan 20 2003 18:37:09 Tony Hoffman
tonyhoffman@earthlink.net
Francisco--


Your positions indicate a motion much too fast to be
a true C3 sungrazer. Also, the velocity is very uneven;
notice the relatively small motion (30 pixels x, 12 pixels y)
for the hour between 0418 and 0518 compared to the much
greater motion over the next interval of just 24 minutes.

Regards,
Tony Hoffman
Jan 20 2003 18:47:30 David Evans
dave.nokia3330@orange.net
UPDATE to report of Jan 20 2003 18:29:24


Possible comet in real-time C3. 2003/01/20

Lasco B/W images

512x512. 0,0 Top-Left


20:42 165, 309
21:18 168, 307
21:42 170, 306
22:18 173, 304

This looked convincing at first, but the object is not at the
expected position in the 23:18 image.

Could possibly be just noise...


- Dave

Jan 20 2003 23:43:41 phil kern
deadbear4u@yahoo.com
in an email to kent  at cyberspaceorbit.com 

i sent him this at this time
Date: Wed, 15 Jan 2003 14:25:22 -0800 (PST)
From: "phil"
do you see inbound object just above disc arm
around 8oclock position shows up starting 14th



Jan 21 2003 08:54:38 Kazimieras Cernis
cernis@itpa.lt
Possible faint object in C3.

0,0 top-left in 1024x1024 images.
Date Time x y
2003/01/21 11:18 295 586
11:42 300 582
12:18 309 575
12:42

Kazimieras Cernis
Jan 21 2003 09:18:40 Kazimieras Cernis
cernis@itpa.lt
Possible very faint object in C3.

0,0 top-left in 1024x1024 images.
Date Time x y
2003/01/21 11:18 295 587
11:42 300 582
12:18 309 575
12:42 314 572

Kazimieras Cernis
Jan 21 2003 10:03:44 Kazimieras Cernis
cernis@itpa.lt
Disregard my last report.

It could be a noise.

Kazimieras Cernis
Jan 21 2003 12:00:59 mike boschat
mboschat@eastlink.ca
Possible comet in C3 images - 20030121_1342 UT


****** NOTE ******
x-coordinates are probably correct,
but y-coordinates may be off by
several pixels.
0,460 in lower left corner

LASCO C3 IMAGES - 1024 x 1024

YYYY-MM-DD HH:MM X Y
---------- ----- --- ---
2003-01-21 1342 137, 191
1418 141, 188
1442 146, 188
1518 149, 185
----------------
Michael Boschat
Jan 21 2003 12:33:48 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2  data 20030121 1024*1024


time x,y
15:54 410,1015
16:06 412,1008
...

Aspect other images for confirmation
regards, Ciro
Jan 21 2003 15:07:42 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I can confirm two more comets...


SOHO# Discoverer Date Camera
------------------------------------------
581 X.-M. Zhou 03/01/16-17 C2,C3
582 M. Oates 03/01/18-19 C3


Please email me with any questions regarding the rejected claims.

Thanks,
Derek
Jan 21 2003 15:55:18 Charles Bell
charbell@bellsouth.net
The mpgs at: http://lasco-www.nrl.navy.mil/daily_mpg/030115_c3.mpg 

and
http://lasco-www.nrl.navy.mil/daily_mpg/030116_c3.mpg
show an object moving radially inward toward the solar disk from about 8 o'clock.
Jan 21 2003 16:36:19 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Charles and Phil,


If you scroll down this page, you will see that this comet had
been claimed by R. Matson on Jan.14. In addition, to make a
comet claim you need to submit the x & y positions of the comet
in four consecutive images.

Email me with any questions,

Derek
Jan 22 2003 10:40:20 FRANCISCO MARDONES
kcosa@patagoniachile.cl
Report:

C2 Image size = 512x512
point x y YYYY MM DD HH MM
0 89 339 2003 01 22 02 54
1 89 339 03 06
2 89 339 03 30
3 91 339 03 54
4 93 338 04 06
5 95 338 04 30
6 98 338 04 54
7 99 338 05 06
8 101 338 05 30
9 104 337 05 54
10 106 337 06 06
11 108 337 06 30
12 111 337 06 54
13 115 336 07 31
14 116 336 07 54
15 118 336 08 06
16 121 336 08 30
17 123 335 08 54
18 124 335 09 06
19 126 335 09 30
20 129 335 09 54
21 131 335 10 06
22 132 335 10 30
23 135 335 10 54
24 136 335 11 06

Regards, Francisco Mardones
Jan 22 2003 11:57:29 Maik Meyer
maik@comethunter.de
Francesco,


what you have reported is the star sigma Cap (although the coordinates
are somehow mixed up). Please note that objects that move
vertically in 99,99% of all cases are stars and/or planets.
Please try to make yourself familaiar with the morphology of past
comets and the trajectories of the known comet groups, which
contain about 95% of all SOHO comets.

Regards, Maik
Jan 22 2003 13:27:48 Maik Meyer
maik@comethunter.de
Correction to my last posting. For "vertically" please read

(of course) "horizontally".

Maik
Jan 25 2003 09:10:08 Scarmato Toni
toniscarmato@libero.it
Possible comet in C3.


Positions 512x152 0,0 top-left

20030125

0854 166,301
0954 171,299
1054 176,297
1154 181 295

Regards,

Toni Scarmato
Jan 25 2003 10:01:46 Rainer Kracht
R.Kracht@t-online.de
Looks like C/2002 X5 is about to enter the C3 field 

14:54 UTC 579,0 (0,0 in upper left corner)

Rainer
Jan 25 2003 10:59:20 Rainer Kracht
R.Kracht@t-online.de
C/2002 X5 has entered the C3 field

15:54 UTC 578,1 (0,0 in upper left corner)

Rainer
Jan 25 2003 15:33:06 Rob Matson
matsonr@saic.com
2003 Jan 25 -- Possible diffuse, non-group comet in real-time C3

beginning at 15:54 descending to the right of the occulting disk.
1024x1024 coordinates (0,0 in upper left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2003-01-25 15:54 632 467
16:54 632 475
17:54 631 482
18:54 629 491

--Rob
Jan 25 2003 17:24:48 Rob Matson
matsonr@saic.com
UPDATE to my 1/25 15:33:06 report:  nothing visible at

19:54. Given the trendless brightness variations in
the four reported frames, it's doubtful that it corresponds
to a real object. --Rob

Jan 26 2003 12:22:14 Roswitha Steingaesser
steingaesser@bluehash.de
Comet

LASCO C3
First appearance: C3 image 2003/01/25 16:54
Still visible on latest C3 image 2003/01/26 13:55
Jan 26 2003 13:21:45 Maik Meyer
maik@comethunter.de
Roswitha,


this is comet C/2002 X5 (Kudo-Fujikawa).

Maik
Jan 27 2003 11:16:11 Shusaku TAGO
tagoshu@p1.tcnet.ne.jp
C/2002 X5 (Kudo-Fujikawa) will also be visible in LASCO C2,

isn't it?

- Tagoshu
Jan 27 2003 15:52:45 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello all,


Looks like we're getting some good data on C/2002 X5 Kudo-Fujikawa.
This will hopefully continue as the comet should enter C2 within
the next hour. C2 observations will be substantially increased
tomorrow morning, while C3 observations will diminish, for
the remainer of the day.

Looks like all the recent claims have been retracted or were
referencing C/2002 X5, so I have nothing new to confirm.

Derek
Jan 27 2003 16:31:54 Rainer Kracht
R.Kracht@t-online.de
C/2002 X5 has entered the C2 field

21:08 UTC 920,0 (0,0 in upper left corner)

Rainer
Jan 27 2003 18:37:26 mike boischat
mboschat@eastlink.ca
Why would teh comet not be visible on this

coronagraph image at?
http://mlso.hao.ucar.edu/latest.mk4.gif
Jan 27 2003 20:25:14 Douglas Biesecker
dbiesecker@attbi.com

The Mauna Loa coronagraph only goes out to a distance of 2.85 Rsun. I don't know the minimum elongation of this comet, but I suspect it's not that close.

Doug
Jan 27 2003 22:50:03 Tony Hoffman
tonyhoffman@earthlink.net
Possible bright Meyer group comet in C2 starting at 0039 Jan 28 at 30, 255 (1024 images); more positions to come.

Tony H.
Jan 27 2003 23:02:51 Tony Hoffman
tonyhoffman@earthlink.net
Looks like it was just some enticing noise--

in 5 positions no less--but the velocities
didn't match.

Tony
Jan 28 2003 09:21:52 Greg Maley
gmaley@one.net
Possible comet found on C2 at Tue Jan 28 14:16:50 GMT 2003.


Positions:
Point X Y YYYYMMDD HHMM Julmins Height(km)
0 926 979 20030127 2223 4245023 5440239
1 924 970 20030127 2239 4245039 5370720
2 923 955 20030127 2306 4245066 5269114
3 922 936 20030127 2339 4245099 5143820
4 927 922 20030128 0006 4245126 5087884

Time(s) Height(km)
0.0 5440239
960.0 5370720
2580.0 5269114
4560.0 5143820
6180.0 5087884
Height vs Time Slope = -58 km/s
Height vs Time Intercept = 5428228 km
Height vs Time Correlation coeff = -0.9
Jan 28 2003 10:19:29 Maik Meyer
maik@comethunter.de
Greg,


this is C/2002 X5 (Kudo-Fujikawa). It can be seen in C3 since Jan. 26.

Maik
Jan 29 2003 09:51:39 Kazimieras Cernis
cernis@itpa.lt
The comet's C/2002 X5 coma appears as is not the regular form.

It is with a small concentration to the east of central condensation from 2003/01/28-29 in C2 and C3.
It could have a double nucleus after perihelion passage or it may
be a simple optical abberation effects.
Kazimieras Cernis
Jan 29 2003 12:48:29 Sebastian Hönig
Sebastian@sungrazer.org
Kazimieras,


either that or it is simply the effect of dust and
plasma tail pointing in other directions due to their
release speed and the comet's movement.

Regards, Sebastian
Jan 30 2003 09:50:54 mike boschat
mboschat@eastlink.ca
OT - C2 images blurry?


What happened to the 1024 pixel C2 images? The
stars and other "stuff" are blurry looking
like the scope was a tad out of focus?

MB
Jan 30 2003 18:27:18 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I have received a few reports suggesting that the comet has

split. I have looked at the images and do not see anything that
supports this theory. But just to make sure, Kazimieras please
send me an email of a few images (date and time) you believe lend
the strongest evidence for such a claim. There is a possibility
that the processing is being deceptive. Also, Mike, the C2 images
may appear slightly "out of focus" because they are half-resolution.
Although, the difference shouldn't be extremely noticeable.

This has been a fun comet, but unfortunately it is due to leave C3
at approximately 14 UT tomorrow. The good news is that another new
comet, C/2002 V1 (NEAT), will enter the C3 FOV in a few weeks. It
will not be visible in C2.

Finally, late tomorrow, there will be increased LASCO cadence as
EIT will perform a "bakeout" throughout the weekend.

Derek