SOHO-LASCO Comet Reports for 200210

Oct 01 2002 00:42:14 John Sachs
imagephoto@blazenet.net
Possible comet C2 images  

0,0 Top Left x and y Coordinates
C2 1024x1024 Images x and y Coordinates
2002101 0301 C2 734 294
2002101 0254 C2 742 295
2002101 0230 C2 757 296
2002101 0206 C2 773 297
2002101 0154 C2 781 298
2002101 0131 C2 796 299
I also see bright comet below
this object. Is it Toni?
John
Oct 01 2002 01:38:47 Mark Ledingham
mark-le@online.no
Possible comet in LASCO C3 images?


Date Time Tel Position
YYYY/MM/DD (UT) (X, Y)*

2002/10/01 00:18 C3 (655, 668)
2002/10/01 00:42 C3 (653, 661)
2002/10/01 01.42 C3 (652, 655)
2002/10/01 02:18 C3 (651, 652)
2002/10/01

* Coordinates mesured in 1024x1024 images, (0,0) is top-left corner.

- Mark Ledingham
Oct 01 2002 02:30:34 John Sachs
imagephoto@blazenet.net
Update to my post of

Oct 01 2002 00:42:14 below.
The object I reported can be
first seen at 20020930 in
Frame 1954.Very Bright.In Frame
2306 it can be seen over Toni
Scartmatos comet.Running paralle
with Toni's.Moving much faster.
Is this a possible Kratch?
Still tracking it.
Thank You
John
Oct 01 2002 10:57:24 Mark Ledingham
mark-le@online.no
There have been few images available since 

early this morning, but it looks like there
may be a possible comet to the right of the
sun in LASCO C3 images at the following
times.*

Date Time Tel Position
YYYY/MM/DD (UT) (X, Y)*

2002/10/01 12:18 C3 (837, 522)
2002/10/01 12:42 C3 (834, 511)
2002/10/01 13:42 C3 (828, 502)

* Coordinates mesured in 1024x1024 images, (0,0) is top-left corner.

Awaiting further images. Will try to fill
in on the details as soon as possible.

- Mark
Oct 01 2002 14:21:47 Mark Ledingham
mark-le@online.no
Please disregard my last report at 10:57. 

I wasn't able to verify my fourth position.
Sorry about that.

- Mark
Oct 01 2002 16:18:55 David Evans
dave.nokia3330@orange.net
A possible Kracht comet in real-time C3 images of 2002/10/01

1024x1024 0,0 Top Left

This object is very small and very faint and requires a certain
amount of concentration to follow...

00:42 691, 480
01:42 692, 477
02:18 693, 472
02:42 692, 469
03:18 692, 467
03:42 691, 466
04:18 688, 464
04:42 685, 463
05:18 682, 461
05:42 679, 460

- Dave

Oct 01 2002 16:48:46 John Sachs
imagephoto@blazenet.net
A retraction is in order 

for my post of Oct 01 2002 00:42:14.
I have been informed I was tracking
Toni Scarmato's comet.
Thanks All
John
Oct 03 2002 12:19:10 Scarmato Toni
toniscarmato@libero.it
Possible comet in C2 starting at


20021003 1554 895,931


1024x1024 0,0 top-left


other positions at next post

Regards,

Toni Scarmato
Oct 03 2002 12:28:03 Scarmato Toni
toniscarmato@libero.it
Update possible comet in c2


20021003


1530 907,841
1554 895,931
1606 884,925


I am waiting other images to confirm


Toni Scarmato
Oct 03 2002 12:34:28 Maik Meyer
maik@comethunter.de
I can't confirm Toni's report without even looking at it. Again

the velocities (in this case especially in x) are not consistent.
Please, since this is the easiest thing to do: Calculate the
velocities in x and y before posting a claim.

Maik
Oct 03 2002 12:58:50 Scarmato Toni
toniscarmato@libero.it
Relooking at images and after to have

download 1506 images I must to say that
Maik is rigth.

The object is not visible at 1506 and
the motion in x is not consistent.


Regards,

Toni
Oct 04 2002 09:58:25 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible non-Kreutz comet in a real-time C2 images now.


Faint object, visible in 4 images
on 2002/10/04 from 06:30 to 08:06 UT in top right quadrant.

Approximate positions measured from the top-left corner
of a 512x512 frames :
col, row
06:30 511,65 BW image

I'm waiting other images to confirm the object.

Xavier Leprette
Oct 04 2002 10:06:12 Xavier Leprett
xavier.leprette@wanadoo.fr
A possible non-Kreutz comet in a real-time C2 images now.

UPDATE :
Faint object, visible in 4 images
on 2002/10/04 from 06:30 to 08:06 UT in top right quadrant.

Approximate positions measured from the top-left corner
of a 512x512 frames :
col, row
06:30 511,65 BW image
06:54 501,54 BW image
07:31 485,37 BW image
08:06 469,22 BW image
I'm waiting other images to confirm the object.

Xavier Leprette
Oct 04 2002 10:12:40 XingMing Zhou
zh_x_m@163.net
Possible Meyer group comet in real-time c2 images now.

It's bright.
0,0 in upper left corner

Images Size X, Y

20021004_0654_c2.gif 512 x 512 506, 44(B/W)
20021004_0806_c2.gif 512 x 512 470, 22
20021004_0830_c2.gif 512 x 512 458, 13
20021004_0854_c2.gif 512 x 512 446, 3

XingMing Zhou
Oct 04 2002 10:17:54 Rainer Kracht
R.Kracht@t-online.de
possible Meyer group 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
20021004 0754 950 54
20021004 0806 938 44
20021004 0830 916 26
20021004 0854 892 8

Rainer
Oct 04 2002 10:31:45 Xavier Leprette
xavier.leprette@wanadoo.fr
UPDATE of my previous reports :


OK Xing Ming and Rainer, you have reported the same comet that
I reported earlier.
Object is seen also in color 512 images at
08:30 459,14
08:54 446,4

Xavier
Oct 04 2002 12:00:34 Maik Meyer
maik@comethunter.de
Confirmation and congrats Xavier to the possible 33rd Meyer group

comet. Did anyone try to find it in C3 yet? I'm on travel with no
possibility to check.

Maik
Oct 06 2002 12:35:33 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I am able to confirm X. Leprette's claim of a Meyer-group

comet in C2, October 4 images. I did not see anything in C3 that
I could definitively say is this comet, especially with the
large amount of CME activity occurring in this region. This
discovery is SOHO527. All claims have been checked.

Also, you'll notice the newest MPEC(T25) contains an error. I've already alerted Brian that the reporter of C/2002 S7 was R. Matson, not R. Kracht. It was a Kracht-group comet which perhaps
may have led to the confusion.

Derek
Oct 07 2002 17:11:50 David Evans
dave.nokia3330@orange.net
Possible comet in C3

2002/10/06

16:42 689 637

Awaiting measurement of further images


- Dave
Oct 07 2002 17:35:55 David Evans
dave.nokia3330@orange.net
UPDATE Possible comet in C3 2002/10/06

1024x1024 0,0 Top Left

Very short-lived and faint

15:42 698, 649
16:18 692, 644
16:42 688, 641
17:18 682, 636
17:47 678, 632

There is also a possible companion object at -7, -7
Oct 07 2002 18:12:10 David Evans
dave.nokia3330@orange.net
UPDATE on the 'companion object' mentioned in my previous report

1024x1024 0,0 Top Left

It appears to be leading the aforementioned object at
approximately -7, -7

15:42 688, 641
16:18 684, 637
16:42 681, 634
17:18 677, 630
17:42 673, 626

Don't expect to see much. Both objects are very faint but their
movement appears to be reasonably consistent...

- Dave
Oct 08 2002 14:52:19 Michael Oates
mike@ph.u-net.com
Possible (Faint) Kreutz comet in realtime C3 images


(0,0 in bottom left corner in 1024x1024 images)
Image Col Row
20021008_1618_c3.gif 709 368
20021008_1742_c3.gif 706 372
20021008_1818_c3.gif 699 378
20021008_1842_c3.gif

Michael Oates
Oct 08 2002 15:22:39 Sebastian Hönig
Sebastian@sungrazer.org
confirmation of mike's comet. my kindest congrats, mike!


regards, sebastian
Oct 08 2002 16:20:01 Mark Ledingham
mark-le@online.no
Possible comet in LASCO C3 images? More positions will follow.


Date Time Tel Position
YYYY/MM/DD (UT) (X, Y)*

2002/10/08 15:42 C3 (727, 668)
2002/10/08 15:42 C3 (721, 663)

* Coordinates mesured in 1024x1024 images, (0,0) is top-left corner.

- Mark
Oct 08 2002 16:27:41 Mark Ledingham
mark-le@online.no
Time should show 15:42 and 16:18 (instead of 15:42)

on my last report. An immediate update will follow.

- Mark
Oct 08 2002 16:34:30 Mark Ledingham
mark-le@online.no
Here are the updated positions on my last report:


Date Time Tel Position
YYYY/MM/DD (UT) (X, Y)*

2002/10/08 15:42 C3 (727, 668)
2002/10/08 16:18 C3 (721, 663)
2002/10/08 16:42 C3 (716, 659)
2002/10/08 17:18 C3 (709, 654)
2002/10/08 17:42 C3 (705, 651)
2002/10/08 18:18 C3 (699, 645)
2002/10/08 18:42 C3 (694, 641)

Now I only can hope!

* Coordinates mesured in 1024x1024 images, (0,0) is top-left corner.

- Mark
Oct 08 2002 16:48:46 Rainer Kracht
R.Kracht@t-online.de
don't hope

this is Mike's comet

Rainer
Oct 08 2002 17:31:36 Mark Ledingham
mark-le@online.no
Ooooh, my! I'm really sorry about this one, Mike.

I didn't see that your 0,0 position was in the
lower left corner. Please forgive me - and let
me offer my congratulations on a nice comet.
Thanks to you, too, Rainer.
Oct 09 2002 08:16:19 michael boschat
aa063@chebucto.ns.ca
Possible Comet in C3 at 20021008_2118 UT


Positons to follow:

0, 460 in lower left ( images does not
fit on whole screen. )

Using 1024 size images in C3 --- XY's may be off! 7 pixels.

20021008_2118 438, 76
20021008_2142 434, 72
20021008_2218 425, 65
20021008_2318 413, 55

Mike Boschat
Oct 09 2002 08:22:09 michael boschat
aa063@chebucto.ns.ca
UPDATE: Possible Comet in C3 at 20021008_2118 UT


I downloaded the 512 sizes to get the XY's mabey closer,
have not seen any post on this object....

0,460 in lower left

Using 512 size images in C3 --- XY's may be off! 7 pixels.

20021008_2118 333, 278
20021008_2142 330, 275
20021008_2218 326, 274
20021008_2318 322, 268

Mike Boschat
Oct 09 2002 08:30:45 michael boschat
aa063@chebucto.ns.ca
DISREGARD MY POSTS!

IT WAS MIKE O's Comet!

SOrry!!

Mike Boschat
Oct 09 2002 09:12:47 Xavier Leprette
xavier.leprette@wanadoo.fr
Last Oates's comet is coming in C2 now.

09/10/2002
Rough positions: (0,0) upper left, 512 x 512 images
col,row

01:54 466,450
02:06 460,445

Xavier Leprette
Oct 11 2002 12:54:19 Jim Ruebush
ruebush.jim@iccsd.k12.ia.us
date 10/09 

C2 00:54 UT until 03:30 UT

enters field of view at 4 o'clock position
Oct 12 2002 05:04:35 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hi all, M. Oates' comet in October 8-9, 2002 images is confirmed

as SOHO528. It was visible in C2 & C3. All claims since my last
post have been checked. And believe it or not, the measurements
are now current.

Jim, your post was SOHO528 entering C2.

Derek
Oct 14 2002 13:47:51 Xavier Leprette
xavier.leprette@wanadoo.fr
Possible sungrazing comet in a real-time C3 images of 2002/10/14


It is faint and visible from 12:18 to 13:42 UT in 3 consecutive images. The suspect object is moving towards the sun.

Rough positions measured from the top-left corner of 512x512 frames :
col, row
12:18 UT 364,347
12:42 UT 363,345
13:42 UT 361,340

Xavier Leprette
Oct 14 2002 15:13:44 Maik Meyer
maik@comethunter.de
Xavier,


your 13:42 UT position is a star (SAO 139098, 9m4).

Maik
Oct 14 2002 19:16:17 Rob Matson
matsonr@saic.com
2002 Oct 14 -- Possible Marsden comet in C3 beginning at 20:42.

1024x1024 frames (0,0 in upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2002-10-14 20:42 605 588
21:18 607 586
21:42 609 584
22:18 612 581

Some earlier frames would help to confirm... --Rob
Oct 16 2002 04:57:31 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible sungrazer comet in a real-time C2 images now.


The object is faint and it is visible in 2 consecutive images
on 2002/10/16 from 07:54 to 0:06 UT.

Positions measured from the top-left corner of a 1024x1024 frames :
col, row
07:54 933,1000

Xavier Leprette
Oct 16 2002 05:04:17 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible sungrazer comet in a real-time C2 images now.

UPDATE : The object seems real

The object is medium bright and it is visible in 3 images
on 2002/10/16 from 07:54 to 08:54 UT.

Positions measured from the top-left corner of a 1024x1024 frames :
col, row
07:54 933,1000
08:06 923,990
08:54 882,952 (BW image enlarged at 1024)

Xavier Leprette
Oct 16 2002 05:54:47 Sebastian Hönig
Sebastian@sungrazer.org
Confirmation of Xavier's Kreutz comet.


The comet is large and diffuse and very well visible.

Regards, Sebastian
Oct 16 2002 18:05:52 Pat Broadhurst
tmexpert@hotmail.com
C3 Images of object - possible comet: 2002/10/16 


12:42 428, 120
13:42 413, 127
14:18 403, 142
14:42 402, 146
15:18 402, 149

1024 x 1024 images, 0,0 lower left

Pat Broadhurst
Oct 17 2002 03:18:55 Maik Meyer
maik@comethunter.de
Pat,


your object moves not uniformly to be real. If real the relative
speeds between successive image are expected to be almost constant.
If you calculate the velocities between each image in x and y you
will see that these are by no means constant. Although your object
moves not on a Kreutz trajectory and non-Kreutz comets and the
comets of other groups have been observed to change velocity and
direction this happens not on such a short timescale to such extent.
So, without even looking at the actual images I can say that it is
noise. Hope this helps.

Maik
Oct 17 2002 10:21:40 Sebastian Hönig
Sebastian@sungrazer.org
Possible sungrazer in LASCO C2 images


Date: Oct 17, 2002

Description:
Remnant of a sungrazer, will be visible in previous images

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

Time (x,y)
10:30 829,917
10:54 807,896

Sebastian Hönig
Oct 17 2002 10:26:47 Sebastian Hönig
Sebastian@sungrazer.org
Possible sungrazer in LASCO C2 images


Sorry, forgot 3rd position:

Time (x,y)
10:30 829,917
10:54 807,896
11:06 799,871

Sebastian Hönig
Oct 17 2002 10:28:16 Sebastian Hönig
Sebastian@sungrazer.org
CORRECTION: GRRRRR, was the wrong position


11:06 797,885

Sebastian Hönig
Oct 17 2002 15:27:04 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I confirm X. Leprette's Kreutz comet visible in Oct 16 C2

images. This is SOHO529. Rough positions to follow. All other
claims have been checked w/o seeing anything cometary.
However, I am waiting for images just prior to Oct 17 10:30 to
fill in before a final decision is made regarding Sebastian's
report.

#COMMENT: SOHO529-X. Leprette
# HEIGHT DATE TIME ANGLE TEL FC COL ROW
8.01 2002/10/16 07:31:49 221.3 C2 10 952.0 6.0
7.71 2002/10/16 07:54:06 221.1 C2 10 933.0 24.0
7.54 2002/10/16 08:06:05 221.0 C2 10 923.0 34.0
7.24 2002/10/16 08:30:05 220.8 C2 10 904.0 52.0
6.88 2002/10/16 08:54:05 220.5 C2 10 882.0 73.0
6.72 2002/10/16 09:06:05 220.3 C2 10 872.0 82.0
6.39 2002/10/16 09:30:07 220.1 C2 10 852.0 102.0
6.05 2002/10/16 09:54:05 219.7 C2 10 831.0 122.0
5.88 2002/10/16 10:06:05 219.5 C2 10 821.0 132.0
5.53 2002/10/16 10:30:24 219.0 C2 10 799.0 152.0
5.16 2002/10/16 10:54:05 218.6 C2 10 777.0 174.0
5.00 2002/10/16 11:06:05 218.3 C2 10 767.0 183.0
4.62 2002/10/16 11:30:05 217.6 C2 10 744.0 205.0
4.24 2002/10/16 11:54:05 217.0 C2 10 722.0 228.0


Derek
Oct 17 2002 16:48:03 Rainer Kracht
R.Krach@t-online.de
I can confirm Sebastian's C2 Kreutz comet.

It's also visible at 0954 and 1006.
Congrats!

Rainer
Oct 18 2002 12:38:38 David Evans
dave.nokia3330@orange.net
Possible faint Kreutz comet in C2 2002/10/18

1024x1024 0,0 Top Left

11:06 875, 1006
11:30 854, 986
11:54 831, 968
12:06 821, 958

No consecutive images after this time...

- Dave
Oct 19 2002 01:11:36 Daniel Cornwall
daniel.cornwall@att.net
Possible comet asteroid?


C3 2002/10/18 512x512 0,0 top left
0018 428, 202
0042 430, 203
0142 431, 203
0218 433, 202
1042 443, 205

This object seemed to be in every frame for 10/17 and moved steadily. It did not seem bright enough for a planet, so perhaps an asteroid?

Could someone answer two questions I didn't see on this web site?
1) Where is a good online empheris that will show asteroids and known comets? I have a basic planetarium program that shows stars and planets, but not smaller objects.

2) How wide is the LASCO C3 field? This will help me verify items in the emphemeris!

Thank you,
Daniel Cornwall
Oct 19 2002 02:04:24 Maik Meyer
maik@comethunter.de
Daniel,


I am not sure if there is really something. The 1024x1024 are
also not conclusive. Are you sure your positions (date, 0,0, etc)
are correct? However, there is a minor planet near the
indicated positions: 16 Psyche. But it should be at 11m6 - too
faint for C3. The answers to your questions:

1) You can check for known asteroids and comets with the MPChecker
at http://scully.harvard.edu/~cgi/CheckMP
2) The C3 FOV is about 8 degrees radius.
A list of C3 asteroid transits is posted at the sungrazer homepage.

Kind regards, Maik
Oct 19 2002 02:30:20 Maik Meyer
maik@comethunter.de
Daniel,


I have noticed that your x positions are coincident with the star
SAO 139235 (9m1) but your y-positions are systematically off by
+6 pixels (I guess you use the Java tool to measure positions).
Maybe you are referring to this star.

Maik
Oct 19 2002 08:00:36 Rainer Kracht
R.Kracht@t-online.de
Kreutz group comet in archival C3 images of 1999 June 24.

C3, 1024x1024, 0,0 upper left

32037693.fts 01:42 657, 615
32037694.fts 02:18 655, 611
32037695.fts 02:42 654, 608
32037696.fts 03:18 652, 603
32037697.fts 03:42 651, 600
32037698.fts 04:18 648, 595
32037699.fts 04:42 647, 592
32037700.fts 05:18 645, 587

This is quite possibly the same as
Mike's unconfirmed find in C2:

> Time of Number
>Date First Image of Images Discoverer
>1999/06/24 08:54 3/4 M. Oates

Perhaps we can both get credit for this one?

Rainer

Oct 19 2002 18:24:35 Michael Oates
mike@ph.u-net.com
Rainer, Wonderful :) Lets hope this now gets accepted.

Just for the record I show here my original report for this find
which is pre-web reporting and was made by email on 28 June 2000

---------------------------------------------------------------
Doug,

Archive sungrazer in C2 images from 24 June 1999

This is only in 3 images, it may be visible in a fourth,
but is very faint, it is missing from a 5th due to a bad
data block.

I found this yesterday, but thought I would leave it till
you got back just in case you don't think it is a comet,
I did not want to upset the numbering.

SOHO-n ?

All positions with 0,0 at bottom left in 1024x1024 images.

Image X Y Time Date
22047406.fts [Bad data]
22047407.fts 1016 203 08:54:05.471 24 June 1999
22047408.fts 1011 212 09:06:05.663 24 June 1999
22047409.fts 999 231 09:30:05.637 24 June 1999
22047410.fts 986 249 09:54:05.433 24 June 1999 [Very faint]

---------------------------------------------------------------
Note the casual way I left it a day before reporting we don't
do that these days!!!

Michael Oates
Oct 20 2002 11:36:37 Rainer Kracht
R.Kracht@t-online.de
Non group comet in archival C3 images of 1999 July 18/19.

C3, 1024x1024, 0,0 upper left

32038875.fts 21:18 629, 331
32038876.fts 21:42 627, 332
32038877.fts 22:18 624, 335
32038882.fts 23:18 619, 338
32038883.fts 23:43 617, 340
32038884.fts 00:18 614, 343
32038885.fts 00:42 612, 345
32038886.fts 01:42 606, 350
32038887.fts 02:18 602, 353
32038888.fts 02:42 600, 355
32038889.fts 03:18 596, 359

faint object, visible in many consecutive images

Rainer

Oct 20 2002 17:18:10 Rob Matson
matsonr@saic.com
2002 Oct 20 -- Possible non-group in real-time C3 images

beginning at 16:18. Since this is a very dim object, I
thought I'd wait 'til it was in at least 6 or 7 images
before posting. Even so, the object may not be real.
I have to leave now (World Series!), so I'll leave it
to others to see if it continues past 20:18.

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

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2002-10-20 16:18 660 650
16:42 659 651
17:18 658 648
17:42 656 646
18:18 655 643 (at the noise level)
18:42 654 641
19:42 652 636
20:18 651 633 (at noise level)

--Rob
Oct 20 2002 17:46:41 Sebastian Hönig
Sebastian@sungrazer.org
Rob,


sorry, I could not find anything at the indicated positions.
However I believe the Giants will do it tonight ;)

Regards, Sebastian
Oct 21 2002 01:22:20 David Evans
dave.nokia3330@orange.net
Possible faint Kreutz in C2 2002/10/20

1024x1024 0,0 Top left

07:31 864, 985
07:54 846, 965
08:06 836, 956
08:30 817, 937
08:54 797, 917

- Dave
Oct 22 2002 19:14:29 Rainer Kracht
R.Kracht@t-online.de
Dave:

I see nothing in C2
at the posted positions
Oct 20 07:31 - 08:54.

Rainer
Oct 22 2002 20:01:16 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C2


Date: Oct 22, 2002

Positions: 0,0 upper left, 1024 x 1024

Time (x,y)
21:50 852,969
22:06
22:26

More soon.

Sebastian Hönig
Oct 22 2002 20:07:57 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C2


Date: Oct 22, 2002

Description:
Very diffuse, not anymore visible in 23:26. So I keep my fingers
crossed, Derek... ;)

Positions: 0,0 upper left, 1024 x 1024

Time (x,y)
20:50 900,1020 (?)
21:26 870,989
21:50 852,969
22:06 838,956
22:26 823,939

Sebastian Hönig
Oct 22 2002 22:51:54 Mimeev Alexander
alexpm@imail.ru

I confirm object on 2126, 2150, 2206, 2226, but it was not found
in automated search with 'level of filtrations' =(+5), see
this is connected with its weak low level expressing on last
photographies 2326.
(or our program little bad works ;(...)
Alexander Mimeev
Oct 24 2002 01:28:58 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I can confirm 3 more comets.  I have only made decisions on

reports up to and including Rainers' Oct 20 2002 11:36:37 claim.

I hope Rainer will not be too upset but I have given credit for
the 99/06/24 comet solely to M. Oates becaue he originally
reported this object in C2. The object showed characteristics
of a Kreutz comet but was visible in only three C2 images,
therefore it was deemed a SOHO X-comet. Now, Doug and I have
always checked each camera for every comet, but what can I say, we
stunk on this one! The comet was fairly obvious in C3 images.


SOHO# Reporter Date Camera
-------------------------------------
530 S. Hoenig 02/10/17 C2*
531 M. Oates 99/06/24 C2, C3!
532 R. Kracht 99/07/18-19 C3*

*Haven't checked both cameras.


By the way, I will be gone for the next week so there will be no
new MPECs or confirmations during this time.

Derek
Oct 24 2002 11:53:37 Scarmato Toni
toniscarmato@libero.it
Possible comet in c2 images starting at


20021024 1406 745,1008

1024x1024 0,0 top-left corner


Other positions at next post

Toni Scarmato
Oct 24 2002 12:06:09 Scarmato Toni
toniscarmato@libero.it
Update positions possible comet in c2


20021024

1350 751,1020 ?
1406 745,1008
1426 732,986


Small object moving on a Kreutz orbit.

Regards,

Toni Scarmato
Oct 24 2002 12:22:09 Scarmato Toni
toniscarmato@libero.it
Complte set of positions possible Kreutz

comet in C2.

The object seem visible in 5 images

20021024

1350 751,1020 ?
1406 745,1008
1426 732,986
1450 717,965
1506 710,953


Toni Scarmato
Oct 25 2002 12:02:41 David Evans
dave.nokia3330@orange.net
Possible faint Kreutz in archive C3 images of 2002/09/17


1024x1024 0,0 Top Left

A small object but once located it can be seen in 5 frames.

The object is also on an identical path preceeding Xavier
Leprette's comet which is visible at the same time.

15:42 652, 574
16:18 646, 570
16:42 643, 568
17:18 638, 565
17:42 635, 563

- Dave


Oct 26 2002 17:44:39 Rainer Kracht
R.Kracht@t-online.de
possible bright Kreutz group comet in C3 images

b/w 512*512 from the LASCO website
enlarged to 1024*1024
0,0 in upper left corner

Date Time x y
20021026 1518 886 908?
20021026 1942 860 872
20021026 2018 858 868
20021026 2042 854 864


Rainer
Oct 26 2002 17:54:05 Xavier Leprette
xavier.leprette@wanadoo.fr
Possible sungrazer comet in a real-time C2 images of 2002/10/26


It is visible from 19:27 to 19:50 UT in 2 consecutive frames only
The object is small, very faint, and it is moving towards
the sun. I'm not sure for this object.

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

col,row
19:27 847,948
19:50 839,936

I'm waiting previous images to confirm my report, because
may be it is only noise.

Xavier Leprette
Oct 26 2002 18:21:28 Sebastian Hönig
Sebastian@sungrazer.org
I can confirm Rainer's C3 sungrazer. However I strongly doubt the 

15:18 position is real. Congratulations, Rainer. Let's see how it
develops.

Regards, Sebastian
Oct 26 2002 22:16:27 XingMing Zhou
zh_x_m@163.net
Possible realtime sungrazer in C2 imgaes now.

It's small and faint.
(0,0) in upper-left corner.

20021026_2326_c2.gif 512 x 512 363, 484
20021026_2350_c2.gif 512 x 512 358, 478
20021027_0006_c2.gif 512 x 512 354, 474
20021027_0026_c2.gif 512 x 512 348, 466
20021027_0050_c2.gif 512 x 512 341, 458

XingMing Zhou
Oct 26 2002 23:04:46 michael boschat
aa063@chebucto.ns.ca
Comet in C3 at Oct. 26 at 2318 UT - double?
Is this Rainers' comet? Possible double comet.

All images C3 at 512 pixels, 0,460 in lower left
corner.
Date and UT XY's
20021026_2318 418, 393
20021026_2342 416, 390
20021027_0018 413, 388
20021027_0042 411, 386

Mike Boschat
Oct 27 2002 07:48:45 Rainer Kracht
R.Kracht@t-online.de
I have measured positions for the C3 comet I have found yesterday

with 512 pixels and 0,0 in upper left and compared them with Mike's:

Date and UT Mike XY's my pos. diff.
20021026_2318 418, 393 417,423 +1,-30
20021026_2342 416, 390 415,421 +1,-31
20021027_0018 413, 388 413,419 0,-31
20021027_0042 411, 386 411,417 0,-31

They agree very well if Mike has 0,31 in upper left
(and with 0,460 in lower left his images are 430 pixels high)

The comet looked double in b/w 512 images at 2118 and 2142
but I couldn't see this in 1024 images.

Rainer
Oct 27 2002 14:13:39 michael boschat
aa063@chebucto.ns.ca
C3 comet looks double "nuclei" at
1642 UT to 1742 UT images Oct.27 in
the 512 pixel size. 0,460 bottom left.
1642 = 347, 322
1718 = 345, 319
1742 = 343, 316

I am at home and using modem take too
long download 1024 pixel. I used Photoshop
and reversed the images to black on white
and enlarged them looping manually it
looks like a "double comet". If not
how does pixels combine to make such looking
feature?
Mike Boschat
Oct 27 2002 16:40:46 Michael Oates
mike@ph.u-net.com
Possible Kreutz comet in realtime C3 images

Similar to Rainer's comet in similar path and position
Ok, I am not 100% but can see in 4 images.
(0,0 in bottom left corner in 1024x1024 images)
Image Col Row
20021027_1842_c3.gif 832 167
20021027_1942_c3.gif 829 168
20021027_2018_c3.gif
20021027_2042_c3.gif

Michael Oates
Oct 27 2002 17:53:30 Michael Oates
mike@ph.u-net.com
Sorry, nothing there.

Michael Oates
Oct 28 2002 04:38:50 Sergey E.Shurpakov Sergey E.Shurpakov
shurpakov@tut.by
New sungrazer in LASCO C3


Date: Oct 27, 2002

Brief description:
The Comet bright ,there is tail.
On picture from 2002 /10/27 at time lag 21:18 - 23:18 I have found the movinging object(4 images)

Time (x,y)
21:18 653,664
21:42 650,660
22:18 645,655
23:18 635,645

Regards,
Sergey E.Shurpakov
Oct 28 2002 04:55:27 fusco ciro
ce101460@guest.tlsoft.it
Credo di aver trovato una sungrazer. E' la cosa più bella che mi è capitata negli ultimi anni. Spero tanto che vmi venga assegnata a me e che il mio nome compaia nella vostra lista degli scopritori sarebbe bellissimo.


La cometa è visibile nell'immagine seguente e nelle precedenti in basso a sinistra vicino al disco solare
20021027_2342_c3.gif è ben visibile la presenza della coda della cometa. Le immaggini le ho prese dall'archivio di SOHO disponibili su internet.


Sono un appasionato di astronomia ma solo dopo la mia laurea in fisica sto potendo deticare più tempo ai miei interessi.
Spero di ricevere al più presto una risposta.
Ciao Ciro



Oct 28 2002 04:57:03 Maik Meyer
maik@comethunter.de
Sergey,


this is Rainer's comet found on Oct 26 2002 17:44:39. Please check
this board for already reported comets before posting.

Kind regards, Maik
Oct 28 2002 05:33:23 Sebastian Hönig
Sebastian@sungrazer.org
Ciao Ciro,


Inizialmente, la lingua die questa lista è solo inglese.

The comet you reported is the one that was first reported by
Rainer Kracht Oct 26 2002 17:44:39. Two basic things:
(1) Always give (x,y) positions for an object you believe to be
a comet. Otherwise nobody can check it and knows what exactly
you think of.
(2) Always check whether your object has already been discovered.
Multiple reports are futile.

Regards, Sebastian
Oct 28 2002 06:22:06 ciro fusco
ce101460@guest.tlsoft.it
Vi dò informazioni più dettagliate circa la cometa trovata


Time ( x,y ) cm
2002/10/27
23.42 630,640
23.18 632,642
22.18 642,650
21.42 648,658

Saluti Ciro
Oct 28 2002 06:53:02 Maik Meyer
maik@comethunter.de
Ciro,


this is the comet already reported 2 days before by R. Kracht.
Please check the board before posting if the comet has already been
reported (as Sebastian already suggested).

Maik
Oct 28 2002 09:39:41 Rainer Kracht
R.Kracht@t-online.de
Meyer group 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
20021028 0150 1020 340
20021028 0206 1016 322
20021028 0226 1010 298
20021028 0250 1004 272

Rainer

Oct 28 2002 09:42:20 Maik Meyer
maik@comethunter.de
Rainer's C3 Kreutz comet enters C2 at 04:06 UT on 28/10/02.


Maik
Oct 28 2002 09:43:48 Xavier Leprette
xavier.leprette@wanadoo.fr
Bright Rainer'comet is coming in C2 field at 04:06 UT now

28/10/2002
04:06 UT 422,510 in 512 image BW

xavier.leprette@wanadoo.fr
Oct 28 2002 09:52:25 Maik Meyer
maik@comethunter.de
Confirmation of Rainer's Meyer group comet. You beat me on this!

Congrats!

Maik
Oct 28 2002 10:45:24 xavier Leprette
xavier.leprette@wanadoo.fr
Forget my report dated on Oct26 2002 17:54:05.

Noisy only, sorry.

Xavier
Oct 28 2002 11:39:12 Donghua Chen
cdh_email@163.net
Possible comet in C2 images:

1024x1024 0,0 upper left

2002/10/28 0850 264 1001
2002/10/28 0906
2002/10/28 0926 267 971
2002/10/28 0950 271 936
2002/10/28 1006 276 917

Donghua Chen
Oct 28 2002 12:10:25 David Evans
dave.nokia3330@orange.net
----------------------------------------------------------------

Those who are new to sungrazing comet hunting may like to know
that links to animations of the latest finds can be found at -

http://www.dvso.pwp.blueyonder.co.uk/animations.htm

Of particular interest is a magnified animation of the possible
"double nucleus" of Rainer's C3 comet, recently on view, as
reported by Michael Boschat.

- Dave
----------------------------------------------------------------
Oct 28 2002 17:01:04 michael boschat
aa063@chebucto.ns.ca
OFF TOPIC!!!


To "newbies" the BRIGHT object
coming from behind the occulator arm
in the lower left images is VENUS!

Mike B.
Oct 28 2002 17:09:44 Sergey E.Shurpakov Sergey E.Shurpakov
shurpakov@tut.by
Date: Oct 28, 2002

2002/10/28 in interval 12:42-14:42 on Ñ3 new comets is not discovered...
Regards,
Sergey E.Shurpakov(Belarus)
Oct 28 2002 20:48:02 Rafael Augusto Ferreira
rafaelaugusto.ferreira@bol.com.br
Congratulations,

Thanks for this oportunit.
I find data about this comet:
46P WIRTANEN
Because i have a home page about it:
http://groups.msn.com/ARK
Very thank you,
GUTO
Oct 28 2002 20:48:38
 
Oct 29 2002 03:14:48 Maik Meyer
maik@comethunter.de
For discussion, questions and posts which are not reports do not use 

this board. Please use the forum "sohohunter" at yahoogroups ( http://groups.yahoo.com/group/sohohunter )!

Maik
Oct 29 2002 08:22:07 David Evans
dave.nokia3330@orange.net
Monitoring a faint, slight concentration and movement in

real-time C2 images of 2002/10/29

1024x1024 0,0 Top-left

11:50 922, 987
12:06 911, 979
12:26 898, 965

- Dave
Oct 29 2002 10:23:17 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible sungrazer comet in a real-time C2 images.


The object is faint, fuzzy and it is visible in 3 images
on 2002/10/28-29 from 23:26 to 00:06 UT.

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

23:26 788,1015 28/10/2002
23:50 769,993 28/10/2002
00:06 759,978 29/10/2002

Xavier Leprette
Oct 29 2002 10:49:17 Maik Meyer
maik@comethunter.de
I have a fourth position for Xavier's report. Unfortunately it is a very faint object.


28/10/2002 C2 00:26 745, 959

Regards, Maik
Oct 29 2002 11:20:27 Sergey E.Shurpakov Sergey E.Shurpakov
shurpakov@tut.by
Date: Oct 29, 2002


Brief description:
This satellite, which hungs in one point?
The Permanent establishment.
See Yes! Interesting... I have takeàased the comet...
On picture from 2002/10/29 at time lag 06:18 - 10:42 I have found the movinging object(5 images)
0,0 in upper left corner

Time (x,y)
06:18 729,629
07:42 729,629
08:18 729,629
09:18 729,629
10:42 729,629

Regards,
Sergey E.Shurpakov(Belarus)
Oct 29 2002 11:21:43 Sergey E.Shurpakov Sergey E.Shurpakov
shurpakov@tut.by
Date: Oct 29, 2002


Brief description:
This satellite, which hungs in one point?
The Permanent establishment.
See Yes! Interesting... I have takeàased the comet...
On picture from 2002/10/29 at time lag 06:18 - 10:42 I have found the movinging object(5 images)
0,0 in upper left corner

Time (x,y)
06:18 729,629
07:42 729,629
08:18 729,629
09:18 729,629
10:42 729,629

Regards,
Sergey E.Shurpakov(Belarus)
Oct 29 2002 12:31:10 Maik Meyer
maik@comethunter.de
Sergey,


this is simply an effect of the image processing and not a real
object. You'll find several of similar thing in the images. Some
dark stationary spots are "bad pixel", the bright ones may be
"hot pixel".

Maik
Oct 29 2002 13:13:28 Sergey E.Shurpakov Sergey E.Shurpakov
shurpakov@tut.by
Date: Oct 29, 2002 20:10:35


Brief description:
This - small and weak.
On picture from 2002/10/29 at time lag 07:45 - 09:18 I have found the movinging object(3 images)
0,0 in upper left corner

Time (x,y)
07:45 564,778
08:18 561,782
09:18 555,790


Regards,
Sergey E.Shurpakov(Belarus)
Oct 29 2002 13:16:31 Sergey E.Shurpakov Sergey E.Shurpakov
shurpakov@tut.by
Date: Oct 29, 2002 20:11:35


Thank you Maik!
Very grateful for rendered aid. Thank you.
Regards,
Sergey
Oct 29 2002 15:52:03 michael boschat
aa063@chebucto.ns.ca
Object in C2 @ 20021029_1726 UT
Very faint object seen in only 3 images. The images
after 1806 are very bright and I can't see anything.
I'm using 512 pixel images with 0,476 in lower left.
XY's may be off several pixels...
UT XY
1726 454, 460
1750 443, 456
1806 436, 447

Mike Boschat
Oct 29 2002 20:21:23 David Evans
dave.nokia3330@orange.net
Possible small faint Kreutz in real-time C2 images of 2002/10/29

1024x1024 0,0 Top-Left

20:26 952, 978
20:50 943, 970
21:26 929, 959
21:50 918, 950
22:06 910, 944
22:26 901, 937

- Dave
Oct 30 2002 03:39:53 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Date: Oct 30, 2002 10:24:35

A possible sungrazer comet in C3.

Brief description:
On picture from 2002/10/30 at time lag 06:18 - 06:42 I have found the movinging object(2 images)
0,0 in upper left corner

Time (x,y)
06:18 355,130
06:42 349,125

Regards,
Sergey Shurpakov
Oct 30 2002 03:59:53 Maik Meyer
maik@comethunter.de
Sergey,


please do not post claims with only 2 images if you are not
extremely sure that there is indeed a comet. You will always find
noise that can be taken for a comet. The rule is to post at least 4 positions! What you have posted is most likely noise. You can't
judge from two images that it is a real object. Please obey the rules
only to post when:
- the object is seen in at least 4 consecutive images
- it moves uniformly (velocity in x and y)
- its shape and brightness are constant or predictable
- you've made sure that it is not already known or noise

Maik
Oct 30 2002 04:41:59 David Evans
dave.nokia3330@orange.net
Possible Kruetz in real-time C2 2002/10/30


1024x1024 0,0 Top Left

07:50 731, 975

More positions soon....

- Dave
Oct 30 2002 04:52:43 David Evans
dave.nokia3330@orange.net
Update: Possible Kruetz in real-time C2 2002/10/30


1024x1024 0,0 Top Left

07:50 733, 977
08:06 728, 962
08:26 720, 940

May possibly be noise - awaiting more images to check....

- Dave
Oct 30 2002 05:07:06 David Evans
dave.nokia3330@orange.net
Re; Possible C2 Kreutz 


Nothing found convincing in 08:50 and 09:06 images.

Apologies... Please disregard my previous report.

- Dave
Oct 30 2002 06:02:17 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
30/10/2002 13:02:05

Yes Maik!
Agree! Take to information. It is Necessary to be more attentive.
This from desire to search for the comets. I much like to do this together with group and SOHO.
The Hurries not will more.
My apologies...
Oct 30 2002 08:00:36 Nicholas Chilelli
nicholas.chilelli@ses-americom.com
Date: 10/27/02-10/28/02

frames: 10/27/02 11:18
10/27/02 17:42
10/27/02 18:42 (about 1/2 from center to edge of FOV)
10/27/02 20:42
10/28/02 00:42

Camera: LASCO C3

Position: Bottom right at about a 4:30 position

no tail is apparent
Oct 30 2002 08:41:10 Nicholas Chilelli
nicholas.chilelli
Please ignore 10/27/02 report below.  The recent report page

must have partially loaded, and when I went to check my posting
there was a LOT more info, including a previous reports.

Nick
Oct 30 2002 09:45:56 Dana Hawn
hawn@law.com
C2 Image Size = 1024x1024 jpg.


Point X Y YYYYMMDD HHMM Julmins Height(km)
0 836 146 20021029 2226 4115426 4195919
1 851 145 20021029 2326 4115486 4290262
2 854 145 20021029 2350 4115510 4308103
3 858 144 20021030 0006 4115526 4338225
4 862 143 20021030 0026 4115546 4368429
5 867 143 20021030 0050 4115570 4398612
6 876 141 20021030 0127 4115607 4465629
7 935 135 20021030 0626 4115906 4873712
8 942 137 20021030 0650 4115930 4908205
9 953 134 20021030 0750 4115990 4997400
10 956 135 20021030 0806 4116006 5011753
11 960 136 20021030 0826 4116026 5032880
12 966 133 20021030 0850 4116050 5089332
13 968 133 20021030 0906 4116066 5102712
14 974 133 20021030 0926 4116086 5142988
15 978 131 20021030 0950 4116110 5180711
16 981 134 20021030 1006 4116126 5184890
17 985 132 20021030 1026 4116146 5222681
18 991 133 20021030 1050 4116170 5258197
19 994 132 20021030 1106 4116186 5283954
Oct 30 2002 09:54:46 Dana Hawn
hawn@law.com
Viewed at a slightly 4 to 4:30 position as if looking at the hour hands on a clock.  Placement in the lower right quad.


C2 Image Size = 1024x1024 jpg.

Point X Y YYYYMMDD HHMM Julmins Height(km)
0 836 146 20021029 2226 4115426 4195919
1 851 145 20021029 2326 4115486 4290262
2 854 145 20021029 2350 4115510 4308103
3 858 144 20021030 0006 4115526 4338225
4 862 143 20021030 0026 4115546 4368429
5 867 143 20021030 0050 4115570 4398612
6 876 141 20021030 0127 4115607 4465629
7 935 135 20021030 0626 4115906 4873712
8 942 137 20021030 0650 4115930 4908205
9 953 134 20021030 0750 4115990 4997400
10 956 135 20021030 0806 4116006 5011753
11 960 136 20021030 0826 4116026 5032880
12 966 133 20021030 0850 4116050 5089332
13 968 133 20021030 0906 4116066 5102712
14 974 133 20021030 0926 4116086 5142988
15 978 131 20021030 0950 4116110 5180711
16 981 134 20021030 1006 4116126 5184890
17 985 132 20021030 1026 4116146 5222681
18 991 133 20021030 1050 4116170 5258197
19 994 132 20021030 1106 4116186 5283954

Same one as before. Did not know to giving a verbal description. I am so sorry.
Oct 30 2002 10:24:22 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello all,  I just wanted to let you know that I will be back at

work on Friday to look at all the recent posts (quite a few!).

Dana, that object is a star. Stars will move almost exactly
horizontal from left-to-right in C2 and C3 images. A typical
C2 image will have between 10-20 stars visible and C3 will have
a few hundred. Planets will also move horizontally through the
images but can also move from right-to-left as well. The "C3
Transits" link will tell you when we expect planets to be visible
in the field of view. Also, on the "Found Something?" page, we
provide some exmples of objects that are frequently mistaken as
comets. And by the way, your first post was fine, a written
description can be provided but is not necessary. All we need
are at least 4 positions, size of the image, telescope, and
where (0,0) is in your coordinate system (e.g bottom left,
top left). "How to" tutorials for finding SOHO comets can be
found at http://www.sungrazer.org and a chat site for the SOHO
comet hunters exists at http://groups.yahoo.com/group/sohohunter/

Good luck to all the recent newbies.

Derek
Oct 30 2002 11:04:20 Dana Hawn
hawn@law.com
Now confirming same find on C3 as posted from C2.  


Point X Y YYYYMMDD HHMM Julmins Height(km)
0 836 146 20021029 2226 4115426 4195919
1 851 145 20021029 2326 4115486 4290262
2 854 145 20021029 2350 4115510 4308103
3 858 144 20021030 0006 4115526 4338225
4 862 143 20021030 0026 4115546 4368429
5 867 143 20021030 0050 4115570 4398612
6 876 141 20021030 0127 4115607 4465629
7 935 135 20021030 0626 4115906 4873712
8 942 137 20021030 0650 4115930 4908205
9 953 134 20021030 0750 4115990 4997400
10 956 135 20021030 0806 4116006 5011753
11 960 136 20021030 0826 4116026 5032880
12 966 133 20021030 0850 4116050 5089332
13 968 133 20021030 0906 4116066 5102712
14 974 133 20021030 0926 4116086 5142988
15 978 131 20021030 0950 4116110 5180711
16 981 134 20021030 1006 4116126 5184890
17 985 132 20021030 1026 4116146 5222681
18 991 133 20021030 1050 4116170 5258197
19 994 132 20021030 1106 4116186 5283954
Oct 30 2002 15:42:17 D H
zeus_daughter2@msn.com
C3 Image Size = 512x512


Point X Y YYYYMMDD HHMM Julmins Height(km)
0 392 53 20021030 0518 4115838 2.039E7
1 151 240 20021030 0542 4115862 9020146

_____________________________________________________________

Most interesting one today. Arcs in from left middle hanging a comma as it gets closer to the center of the sun

C3 Image Size = 512x512

Point X Y YYYYMMDD HHMM Julmins Height(km)
0 32 407 20021030 0518 4115838 2.169E7
1 162 314 20021030 0542 4115862 8788001
Oct 30 2002 16:18:58 Rob Matson
matsonr@saic.com
2002 Oct 30 -- Kreutz comet entering real-time C2 beginning

at 19:50. 1024x1024 frames (0,0 in upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-10-30 19:50 763 1013
20:26 738 982 (expanded from 512x512)

Awaiting further frames...

--Rob
Oct 30 2002 16:26:20 Rob Matson
matsonr@saic.com
UPDATE 2002 Oct 30 -- Kreutz comet confirmed in real-time C2

beginning at 19:50. One additional frame. A possible second
comet following it at coordinates indicated.

1024x1024 frames (0,0 in upper left):

A 2nd one?
YYYY-MM-DD HH:MM Col Row Col Row
---------- ----- --- ---- --- ----
2002-10-30 19:50 763 1013
20:26 738 982 (expanded from 512x512)
20:50 721 961 745 993

--Rob
Oct 30 2002 16:36:25 David Evans
dave.nokia3330@orange.net
Possible Kreutz in real time C2



20:26 742, 985

more positions soon

- Dave
Oct 30 2002 16:40:18 David Evans
dave.nokia3330@orange.net
Congrats Rob, I just saw your post... Nice find!


- Dave
Oct 30 2002 16:59:52 Rob Matson
matsonr@saic.com
FINAL UPDATE 2002 Oct 30 -- C2 Kreutz comet.  The 2nd comet

appears to be real, but it's doubtful that it will survive
to 21:50 in order to be visible in 4 frames.

1024x1024 frames (0,0 in upper left):

2nd one
YYYY-MM-DD HH:MM Col Row Col Row
---------- ----- --- ---- --- ----
2002-10-30 19:50 763 1013
20:06 752 1000
20:26 738 982 762 1013 (very dim)
20:50 721 961 745 993
21:26 696 928 719 961

--Rob
Oct 31 2002 02:56:10 Dana Hawn
hawn@law.com
C3 Image Size = 1024x1024


Point X Y YYYYMMDD HHMM Julmins Height(km)
0 8 597 20021030 1442 4116402 2.087E7
1 6 595 20021030 1518 4116438 2.094E7
2 7 597 20021030 1542 4116462 2.091E7
3 11 596 20021030 1618 4116498 2.074E7
4 11 596 20021030 1642 4116522 2.074E7
5 12 598 20021030 1718 4116558 2.071E7
6 13 598 20021030 1742 4116582 2.067E7
7 16 596 20021030 1818 4116618 2.054E7
8 21 599 20021030 1842 4116642 2.036E7
9 18 597 20021030 1942 4116702 2.047E7
10 22 597 20021030 2018 4116738 2.030E7
11 23 595 20021030 2042 4116762 2.025E7
12 25 598 20021030 2118 4116798 2.019E7
13 28 598 20021030 2142 4116822 2.007E7
14 27 597 20021030 2218 4116858 2.010E7
15 29 599 20021030 2318 4116918 2.003E7
16 37 595 20021101 0142 4118502 1.969E7
17 41 596 20021101 0218 4118538 1.953E7
18 41 598 20021101 0242 4118562 1.955E7
19 39 594 20021101 0318 4118598 1.960E7
20 46 597 20021101 0342 4118622 1.934E7
21 48 595 20021101 0418 4118658 1.925E7
22 49 594 20021101 0442 4118682 1.920E7
23 47 596 20021101 0442 4118682 1.929E7
24 51 594 20021101 0518 4118718 1.912E7

Left side about the 9 hour if looking at a clock
Oct 31 2002 02:56:44
 
Oct 31 2002 04:18:51 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible comet in a real-time C2 images now.


The object is faint and it is visible in 2 images on
2002/10/31 from 08:06 to 08:26 UT.
The suspect is moving towards the sun.

Rough positions: (0,0) upper left, 1024x1024 images
col,row
08:06 744,1019
08:26 730,1002 BW image enlarged

I'm waiting other images to confirm the object.

Xavier Leprette
Oct 31 2002 06:20:36 Scarmato Toni
toniscarmato@libero.it
Possible comet in c2 starting at


20021031 0806 742,1019

1024x1024 0,0 top-left

other positions at next post



Toni Scarmato
Oct 31 2002 06:26:06 Scarmato Toni
toniscarmato@libero.it
Update possible comet in c2


I saw now the Xavier's report.
The object that I have reported is the same.

In 1024 image seem just a comet

Regards,

Toni
Oct 31 2002 08:58:01 Sebastian Hönig
Sebastian@sungrazer.org
Another sungrazer in LASCO C2 images


Date: Oct 31, 2002

Positions: (0,0) upper left, 512 x 512

Time (x,y)
10:26 504,392
10:50

More soon.

Sebastian Hoenig
Oct 31 2002 09:02:05 Sebastian Hönig
Sebastian@sungrazer.org
Another sungrazer in LASCO C2 images

(Update of the first report)

Date: Oct 31, 2002

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

Time (x,y)
10:26 786,1008
10:50 769,987
11:06
11:26 743,956

NOTE: In the first report I gave y,x instead of x,y.

Sebastian Hoenig
Oct 31 2002 09:25:12 Scarmato Toni
toniscarmato@libero.it
I have downloaded the image at


20021031 1106

and the comet reported by Sebastian seem visible
at positions

758,974 1024x1024 0,0 top-left corner

Regards,

Toni Scarmato


Oct 31 2002 09:36:00 Scarmato Toni
toniscarmato@libero.it
Another possible comet in c2 starting at


20021031 1327 751,1013

1024x1024 0,0 top-left

other postions at next post


Toni Scarmato
Oct 31 2002 09:44:53 XingMing Zhou
zh_x_m@163.net
Is there another comet behind Xavier's comet?

visble from 08:26 to 09:26.
0,0 in upper left corner

Xavier's comet
Images Size X, Y X, Y

20021031_0826_c2.gif 512 x 512 367, 505 265,501
20021031_0850_c2.gif 512 x 512 360, 494
20021031_0906_c2.gif 512 x 512 354, 486
20021031_0926_c2.gif 512 x 512 347, 479

XingMing Zhou
Oct 31 2002 09:46:09 Scarmato Toni
toniscarmato@libero.it
Update possible comet in c2


20021031 1327 751,1013
20021031 1350 736,996


The object moving on a Kreutz orbit and is small.


Regards,

Toni Scarmato
Oct 31 2002 09:59:33 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible sungrazer comet in a real-time C2 images now.


The object is faint, and it is visible in 4 images
on 2002/10/31 from 10:26 to 11:26 UT.

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

10:26 786,1009

Xavier Leprette
Oct 31 2002 10:03:59 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible sungrazer comet in a real-time C2 images now.


The object is faint, and it is visible in 4 images
on 2002/10/31 from 10:26 to 11:26 UT.
UPDATE :

Positions measured from the top-left corner of a 1024x1024 frames :
col, row
10:26 786,1009
10:50 770,988
11:06 757,975
11:26 745,958

Xavier Leprette
Oct 31 2002 10:09:24 Xavier Leprette
xavier.leprette@wanadoo.fr
I'm sorry Sebastian, I had not seen your previous report.


Xavier
Oct 31 2002 10:23:47 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible comet in a real-time C2 images, reported

at Oct 31 2002 04:18:51 . UPDATE : new postions
Object already confirmed by other guys.

The object is visible in 5 consecutive images on
2002/10/31 from 08:06 to 09:26 UT.

Rough positions: (0,0) upper left, 1024x1024 images
col,row
08:06 744,1019
08:26 730,1002 BW image enlarged
08:50 714,981
09:26 703,967
09:26 692,950

Xavier Leprette
Oct 31 2002 11:11:06 michael boschat
aa063@chebucto.ns.ca
Confused. How many C2 comets found?

too many updates and trying to figure this
out. Sebastian has one Xavier has one last post?

Mike
Oct 31 2002 11:31:14 michael boschat
aa063@chebucto.ns.ca
Object in C2 @ 20021031_1506 UT


Waiting for more images. Using 512 pixelsize with
0,476 in lower left.

Object just on frame edge and very diffuse.

UT XY
1506 410, 477

Mike Boschat
Oct 31 2002 14:51:45 John Sachs
imagephoto@blazenet.net
Possible  comet C3 or is this a planet?

0,0 Top Left x and y Coordinates
C3 1024x1024 Images x and y Coordinates
20021031 1842 C3 600 944
20021031 1818 C3 599 944
20021031 1742 C3 597 944
20021031 1718 C3 596 944
20021031 1642 C3 594 944
John
Oct 31 2002 15:08:46 Mark Ledingham
mark-le@online.no
Another new object heading toward the sun in 

LASCO C2 images. Coordinates measured in
1024x1024 images; 0,0 in upper left corner.

Date Time x y
2002/10/26 18:26 C2 (681, 849)
2002/10/26 18:50 C2 (676, 836)

- Mark Ledingham
Oct 31 2002 15:10:30 John Sachs
imagephoto@blazenet.net
Please disregard my post below. 

It is an image artifact.
John
Oct 31 2002 15:24:58 Maik Meyer
maik@comethunter.de
Please try to post at least four positions! One is not acceptable,

two only if it is obvious.

Mark, besides giving a wrong date, have you checked if it is
visible in the previous images? If real it should be, because it
is already nearly 200 pixels away from the edge. But I guess it
is not visible there. Please try to do such checks by yourself -
it saves (poor) Derek a LOT of unneccessary work.

Maik
Oct 31 2002 15:38:42 Mark Ledingham
mark-le@online.no
Sorry, my times and positions should read:


Date Time x y
2002/10/31 18:26 C2 (681, 849)
2002/10/31 18:50 C2 (676, 836)

Maik, I have been looping through recent images
since 16:26 and none of these show any indications
of what I am reporting. Even though only two positions
are reported here, I do intend to follow up on this.
Other objects, too, do occasionally show up further inwards from
the edge of the images - from what I have seen from
earlier reports.

- Mark
Oct 31 2002 15:54:41 Mark Ledingham
mark-le@online.no
Please disregard my recent posts. I was fairly certain

this time - but obviously not as precise as I should have
been.

- Mark