SOHO-LASCO Comet Reports for 200211

Nov 01 2002 03:39:11 David Evans
dave.nokia3330@orange.net
Possible faint Kreutz comet in recent C2 images


2002/10/31

1024x1024 0,0 Top-Left

4 positions available

19:50 745, 1008
20:06 734, 994
20:26 721, 977
20:50 705, 956

- Dave
Nov 01 2002 04:06:02 David Evans
dave.nokia3330@orange.net
UPDATE to Possible faint Kreutz (Re: Nov 01 2002 03:39:11)


1024x1024 0,0 Top Left

The object appears real and seems to have a second component
situated at +3, +3

- Dave
Nov 01 2002 04:56:15 Maik Meyer
maik@comethunter.de
I can see nothing cometary at the indicated positions. Not even

a first "component". In the last postions I see absolutely
nothing.

Maik
Nov 01 2002 05:18:22 David Evans
dave.nokia3330@orange.net
Sorry, I have to disagree with you on this one Maik.

Although the object is one of the faintest possible Kreutz I
have seen, I have checked the report again and it still looks
good to me...

- Dave
Nov 01 2002 05:33:52 Sebastian Hönig
Sebastian@sungrazer.org
Dave,


also nothing visible from my side - no confirmation.

Regards, Sebastian
Nov 01 2002 08:28:48 Rainer Kracht
R.Kracht@t-online.de
possible 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
20021101 0842 854 920
20021101 0918 848 916
20021101 1042 836 906

Rainer
Nov 01 2002 09:22:24 Rainer Kracht
R.Kracht@t-online.de
UPDATE possible comet in C3 images

Before I posted the claim I had checked the latest
three 1024*1024 images and found it in all three
images including the missing 0942 image:

1024*1024
0,0 in upper left corner
Date Time x y
20021101 0918 848 916
20021101 0942 845 913
20021101 1042 837 906

So it seemed to be real...
But there is nothing visible in the 0842 image (1024*1024)!
(sorry, could be noise)

Rainer
Nov 01 2002 10:41:59 John Sachs
imagephoto@blazenet.net
Possible  Kreutz comet C3

0,0 Top Left x and y Coordinates
C3 1024x1024 Images x and y Coordinates
20021101 1118 C3 839 873
20021101 1042 C3 843 879
20021101 0942 C3 854 890
20021031 0918 C3 860 895
20021031 0842 C3 866 903
John
Nov 01 2002 10:56:42 Frederick Felt
fsfelt@pop300.gsfc.nasa.gov
Dear Sirs;

There is a comet seen in many frames of Image 4 (and 5)
in the article "Sun Puts on a Show for Fall", in the 01 November
2002 GSFC Website. The comet enters the field of view around time
09:18 on 2002/10/27, at about -60 degrees (lower right quadrant),
and falls into the sun, last seen at 23:42.
Can I name this comet? >smile<

Many regards,
Frederick

Frederick Felt
NASA GSFC Failure Analysis Laboratory
Building 22, C031
(301) 286-9634
Nov 01 2002 12:42:51 John Sachs
imagephoto@blazenet.net
Derek:

I retract my post of
Nov 01 2002 10:41:59
Below.Appears it was Noise.
John
Nov 01 2002 15:25:43 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Nov 01 2002 22:21:59 


shurpakov@tut.by
Possible Kreutz comet C3
0,0 Top Left x and y Coordinates

C3 1024x1024 Images x and y Coordinates

20021101 1542 C3 874 900
20021101 1618 C3 877 902
20021101 1642 C3 862 901
20021031 1718 C3 860 900

Sergey Shurpakov
Nov 01 2002 15:31:25 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Nov 01 2002 22:21:59 


Mistaken in date marks in message below
x y
20021101 Ñ3 17:18 860 900

Sergey Shurpakov

Nov 01 2002 15:34:04 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Nov 01 2002 22:21:59 


shurpakov@tut.by
Possible Kreutz comet C3
0,0 Top Left x and y Coordinates

C3 1024x1024 Images x and y Coordinates

20021101 1542 C3 874 900
20021101 1618 C3 877 902
20021101 1642 C3 862 901
20021101 1718 C3 860 900

Sergey Shurpakov
Nov 01 2002 16:12:44 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Sergey, this is definitely not a comet.  If you look at your

positions, you claim the object moves in +x direction, then
turns back in the -x direction in the time span of one hour.
Comets will not exhibit such movement. The comets that SOHO
observes will have velocities that that do not change
significantly on the time scale of hours (i.e. the pixels/hr in
both the x and y direction will be fairly consistent on the
time-scale of hours. And typically the velocity remains
consistent throughout all observations). Also, under "Found
Something?" entitled 'Where should I look in the images to find
comets?', you will find the paths where over 95% of the comets we
discover are located. I suggest that, as a newbie, you
concentrate on Kreutz comets because they are the "easiest" to
find. You will only find comets when you know where they are,
what they look like and how they move. Familiarize yourself with
the typical appearance and movement of SOHO comets by trying to
find past comets. And please be patient. It takes
people weeks or months to find their first comet so be skeptical
of the objects you think could be comets. Ask yourself, is the
movement and appearance consisent? Thanks and good luck.

To everyone, I am trying to sift through all the recent claims
so please be patient, it could take a long time...years!

Derek
Nov 01 2002 17:09:04 CIRO FUSCO
CE101460@GUEST.TLSOFT.IT
A possible sungrazer comet in c2

1024*1024

20021101

time x,y
20:26 649,747
20:50 632,732


by Ciro
Nov 01 2002 18:12:33 John Sachs
imagephoto@blazenet.net
What is this bright object coming

into fov at c3 ?
Possible Kreutz comet C3
0,0 Top Left x and y Coordinates
C3 1024x1024 Images x and y Coordinates
20021101 2140 C3 1020 463

John
Nov 01 2002 18:38:20 John Sachs
imagephoto@blazenet.net
Object I reported below

Nov 01 2002 18:12:33 may
be the planet Mercury in transit.
John
Nov 01 2002 20:58:05 Kiyoto Shibasaki
shibasaki@nro.nao.ac.jp
I found a comet which fell into the Sun.  I looked into the list

of Sungrazers on 2002 and could not find the one which I found.

Telescope: C2
Date: 2002/10/28
Times: 04:06 - 07:50 (11 images)
Position: South West quadrant (along a extended streamer)
Shape: a small bright head (toward the Sun) and a short tail


Nov 01 2002 23:35:53
 
Nov 02 2002 16:09:57 David Evans
dave.nokia3330@orange.net
Hi Kiyoto


The sungrazer in your report is actually the same comet found by
Rainer Kracht on Oct 26 2002 17:44:39.

This comet first became visible in the C3 images and later
entered the C2 field of view on Oct 28 2002 04:06.

Bright C2 objects of this nature are usually always discovered
first in the C3 images - perhaps up to 35hours before.

So when checking to see if a bright C2 comet has previously been
found, it is always a good idea to first check the reports of C3 discoveries for the previous two days.

Hope this helps...

- Dave
Nov 02 2002 21:21:04 Rob Matson
matsonr@saic.com
2002 Nov 3 -- Dim Kreutz comet in real-time C2 images

enters at 00:30. 1024x1024 coordinates (0,0 in upper
left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-03 00:30 730 1018
00:54 713 997
01:31 688 964
01:54 672 944 (expanded from 512x512)

--Rob
Nov 03 2002 18:24:29 michael boschat
aa063@chebucto.ns.ca
Object in C2 @ 20021103_1806 UT
512 pixel size images used. 0,476 lower left.
My XY's may be off a bit.
UT image XY
1806 401, 472
1830 393, 467
1854 390, 461

Object is faint.

Mike Boschat
Nov 03 2002 21:28:46 mike boschat
aa063@chebucto.ns.ca
Disregard my posts of:


Nov 03 2002 18:24:29 and
Oct 31 2002 11:31:14

cannot follow up on them...
sorry Derek...

Mike B.
Nov 03 2002 21:39:07 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, here are the recent confirmations.



SOHO# Reporter Date Camera
-------------------------------------
533 S. Hoenig 02/10/22 C2
534 R. Kracht 02/10/26-28 C2,C3
535 R. Kracht 02/10/28 C2
536 R. Matson 02/10/30 C2
537 X. Leprette 02/10/31 C2
538 S. Hoenig 02/10/31 C2

I am still reviewing Rob's claim on Nov 2.

Just a reminder for some of the "experienced" people. I require 4
positions unless the object is obvious...NOT DIM or FAINT. I
understand if an occasional false report occurs. But some people
submitted a handful of <4 position reports (in just 1 week) and all were
false! Since I have mentioned the "obvious rule" maybe a few
thousand times already, the only explanation is that you do not
care. Thanks alot.

For the new people, and I see there are quite a few, please do not
report a comet with fewer than 4 positions until you gain some
experience. After all, you really don't know what "obvious" means
yet. And do not worry about your previous false posts, it is
understood that it happens to everyone in the beginning. I just
ask that you make improvements as time progresses.

Email me if you would like to know why your claim was rejected.


Derek
Nov 04 2002 02:54:59 Scarmato Toni
toniscarmato@libero.it
Possible non Kreutz comet in C2


positions 1024x1024 0,0 top-left

20021104

2324 533,1005
0025 545,969
0054 551,950
0131 560,912


Small object moving toward the sun.

Regards,

Toni Scarmato
Nov 04 2002 03:20:08 Rob Matson
matsonr@saic.com
Hi Toni,


Regarding your possible non-group post, the pixel
velocities are:

2324 533,1005
0025 545,969 +12, -36 --> .20, -.59
0054 551,950 +6, -19 --> .21, -.66
0131 560,912 +9, -38 --> .24, -1.03

Unfortunately, the last point is not consistent with the
first three, and nothing compelling is located where you'd
expect the 4th point to be.

Cheers,
Rob
Nov 04 2002 03:57:56 Scarmato Toni
toniscarmato@libero.it
Thanks Rob.


Really the last point appear not consistent
with other.


Regards,

Toni
Nov 05 2002 09:06:39 ciro fusco
ce101460@guest.tlsoft.it
A possible sungrazer comet in C2.

1024x1024

20021105

Time x,y

8:30 371,724
8:54 378,712
9:30 390,692

Ciro
Nov 05 2002 11:42:17 Sebastian Hönig
Sebastian@sungrazer.org
Ciro,


what you spotted is an alignment of noise. Some reasons:
(1)The object is not present at the 09:06 image. Comets must be
visible in all consecutive images. Also, a comet with such a
brightness should be visisble much earlier
(2)This is not the direction of a sungrazer for this time of
year. In general "sungrazer" is a reserved word for Kreutz
comets. At http://www.ph.u-net.com/comets/c2paths.htm you can
see where they are visible at each time of year.
(3)Normally comets are not seen that close to the disc due to
variable reason.

For more information please read (and use) Derek's red posts on
this page.

Regards, Sebastian
Nov 06 2002 05:57:13 Scarmato Toni
toniscarmato@libero.it
Possible comet in C3


positions 1024x1024 0,0 top-left

20021106

0818 665,651
0842 660,648
0918 654,648
0942 649,639


Regards,

Toni Scarmato
Nov 06 2002 06:02:44 Scarmato Toni
toniscarmato@libero.it
Sorry!


the position at 0918 is 654,642

Toni
Nov 06 2002 21:50:16 Rob Matson
matsonr@saic.com
2000 September 7 - ARCHIVE non-group comet found in C3.

It may be visible late on September 6th as well:

YYYY-MM-DD HH:MM FITSFile Col Row
---------- ----- -------- --- ---
2000-09-07 00:18 32057890 859 450
00:42 32057891 857 450
01:42 32057892 854 451
02:18 32057893 850 452
02:42 32057894 849 452
03:18 32057895 847 453
03:42 32057896 846 453
04:18 32057897 844 454
04:42 32057898 841 455 (lost in noise)
05:18 32057899 840 455
05:42 32057900 838 455
06:18 32057901 836 456
06:42 32057902 835 456
...
10:42 32057910 820 459
...
14:42 32057917 803 464
...
17:42 32057923 792 467
...
22:18 32057931 775 472

I haven't checked beyond this point, but I imagine this is
sufficient to identify the comet in the images. It is not
a member of the Kreutz, Kracht, Meyer or Marsden groups.
Just in case, I checked for planets and asteroids, but none
are candidates.

--Rob
Nov 06 2002 22:50:28 Rob Matson
matsonr@saic.com
UPDATE 2000 September 7/8 archive non-group C3 comet.

Apologies for forgetting to include the coordinate reference
in my prior post. They are 1024x1024 coordinates, 0,0 in
upper left corner. An additional position for Sept. 8th:

YYYY-MM-DD HH:MM FITSFile Col Row
---------- ----- -------- --- ---
2000-09-08 06:42 32057948 743 480

It either fades out or is lost in the noise not long after
this point. --Rob
Nov 07 2002 10:24:11 Rainer Kracht
R.Kracht@t-online.de
Marsden group comet in archival C3 images of 2000 Feb 04/05.

C3, 1024x1024, 0,0 upper left

32047257.fts 23:54 363, 481
32047258.fts 00:06 366, 480
32047259.fts 00:18 368, 479
32047260.fts 00:29 371, 478
32047261.fts 00:41 373, 476
32047262.fts 00:53 375, 475
32047263.fts 01:14 379, 473
32047264.fts 01:32 383, 471
32047265.fts 01:51 387, 469
32047266.fts 02:16 393, 467

I think this is SOHO-101 C/2000 C4
found by Maik Meyer in C2

Rainer


Nov 07 2002 12:34:21 Rainer Kracht
R.Kracht@t-online.de
Rob, your archival C3 find looks like 2P/Encke!


Rainer
Nov 07 2002 16:38:23 Rainer Kracht
R.Kracht@t-online.de
Known comets in C3 (and C2)


A description of non-SOHO comets in C2 and C3 can be found at
http://www.ast.cam.ac.uk/~jds/kreutz.htm.

With the orbital elements from MPEC 2002-V31
also the track of C/2002 V1 (NEAT)
will go through C3 2003 Feb 18/19.

Rainer
Nov 07 2002 17:14:35 Sebastian Hönig
Sebastian@sungrazer.org
Hi all,


as Rainer pointed out C/2002 V1 (NEAT) will be visible in LASCO
C3 in February 2003 - from Feb 15 23:18 to Feb 20 06:18.

First information:
http://www.rzuser.uni-heidelberg.de/~shoenig/2002v1.html

Regards, Sebastian
Nov 09 2002 03:12:19 David Evans
dave.nokia3330@orange.net
Monitoring the movement of a possible new comet in real-time C2

2002/11/09. 512x512 B/W LASCO images. 0,0 Top-Left

Initial position -

07:31 330, 508

More positions to follow soon...

- Dave
Nov 09 2002 03:15:33 Xavier Leprette
xavier.leprette@wanadoo.fr
Possible Kreutz comet in a real-time C2 B/W images of 2002/11/09


It is visible from 07:31 till 08:06 UT in 2 consecutive images

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

col, row
07:31 329,508
07:54 -,- bad image
08:06 321,494

Xavier Leprette
Nov 09 2002 03:24:54 Xavier Leprette
xavier.leprette@wanadoo.fr
Hi Dave,


You have sent a report with only one position, it's not correct. You don't respect
Hammers's rules. I have waited for next picture (7:54 and 8:06) to send my report
according these rules. I have seen this comet at 7:31 but one image is not enough
to send a report.

Xavier
Nov 09 2002 03:43:13 David Evans
dave.nokia3330@orange.net
Update:


Re my report of new comet in real-time C2 Nov 09 2002 03:12:19

2002/11/09. 512x512 B/W LASCO images. 0,0 Top-Left

More positions now

07:31 330, 508
07:54 Unusable image...
08:06 320, 494

Hi Xavier, I did wait for the second image but it came through
unusable so I waited for the 08:06 image to visually confirm the
object was indeed real! Then I quickly posted to make the claim.
The fact that I did wait for the follow up image can be verified
in the time of the claim. I beat you fairly Im afraid.

Actually I have been working hard on my image aquisition and
reporting speed. The method is now being used by my good friend
John Sachs and myself. With this method it is possible to report
a visually confirmed find of an obvious comet within only 30
seconds of receiving the second image from when it is posted to
the net! Im sure Derek will not mind one bit about the reporting
speed for this comet.

First one to see and report the find gets the credit I believe
and my report was posted 9 minutes before yours.

Better luck next time...


- Dave
Nov 09 2002 03:50:25 David Evans
dave.nokia3330@orange.net
Sorry Xavier I said in my previous post that I beat you by 9

minutes. This is indeed incorrect, to rectify the error it was
infact just 3 minutes. Apologies for that...


- Dave
Nov 09 2002 04:07:21 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Good afternoon all!

Appear the disputes, problems...
It is Necessary to take only that reports on opening , which have 4 scenes, picture...
This truth, which it is necessary to execute.... There is comets(bright), which obviously have a tail or other signs...
About such possible report and in two positions, how do I seem...
I think that it is impossible also report on opening if you write ----- following coordinates in following message...
I only began the quest of the comets on SOHO... Consider only so...
Can I mistaken?
Sergey Shurpakov
Nov 09 2002 04:12:09 Maik Meyer
maik@comethunter.de
Please restrain discussions and questions to the "sohohunter"

discussion group at yahoogroups.

Thanks, Maik
Nov 09 2002 09:47:03 Rainer Kracht
R.Kracht@t-online.de
Possible Meyer group comet in C2

starting 13:54 at 911,256

Rainer
Nov 09 2002 10:00:56 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
20021109 1354 910 256
20021109 1406 910 242
20021109 1430 906 216
20021109 1454 904 192

Rainer
Nov 09 2002 10:10:52 Scarmato Toni
toniscarmato@libero.it
Possible comet in C3


positions 1024x1024 0,0 top-left

20021109

1023 598,651
1044 596,649
1118 591,644
1142 588,640


Regards,

Toni Scarmato
Nov 09 2002 10:13:55 David Evans
dave.nokia3330@orange.net
Final Update:


Re: my report of a new comet in real-time C2 posted
Nov 09 2002 03:12:19

9 positions are available - 1024x1024 gif images, 0,0 Top-Left.

07:31 658, 1014
08:06 640, 986
08:30 627, 966
09:06 607, 934
09:30 594, 913
09:54 581, 892
10:34 558, 855
10:56 547, 836
11:06 542, 826

Further comets about this find have been posted at -
http://groups.yahoo.com/group/sohohunter/message/543

- Dave

Nov 09 2002 10:29:17 Scarmato Toni
toniscarmato@libero.it
Possible comet in c2 starting at


20021109 1354 911,256

other posistions at next post


Toni Scarmato
Nov 09 2002 10:32:06 Scarmato Toni
toniscarmato@libero.it
Other positions comet in c2


20021109 1024x1024 0,0 top-left

1354 911,256
1406 911,243
1454 907,195
1506 902,180



Regards,

Toni Scarmato
Nov 09 2002 10:44:32 Sebastian Hönig
Sebastian@sungrazer.org
Concerning the recent reports:


- Congratulations to Dave for his C2 find earlier today
- Confirmation of Rainer's Meyer group comet
- No-detection of Toni's C3 report
- Toni's C2 report coincides with Rainer's
Meyer group comet reported 42 min (!!!) before

Regards, Sebastian
Nov 09 2002 13:17:24 ciro fusco
ce101460@guest.tlsoft.it
A possible comet in C3 1024*1024

Date 20021109

Time x,y
14:42 985,696
15:18 983,715
15:42 961,732
16:18 940,746

bye Ciro e Susi
Nov 10 2002 13:15:49 Paolo Laquale
paololaq@tin.it
Possible comet in LASCO C2 image. 

1024x1024 0,0 upper left corner.

x,y
20021110_15:30 - -
20021110_15:54 - -
20021110_16:06 697,1005 (very diffuse)
20021110_16:30 700,996 (diffuse and evident coma)

I not see the comet in image 15:30 and 15:54. I attend
other image to confirm or not !
The comet moves toward the sun

Regards Paolo Laquale
Nov 10 2002 13:48:56 Paolo Laquale
paololaq@tin.it
Sorry, disregard my last post, it's only noise.

I not see the possible comet in image
20021110_16:54
20021110_17:06
20021110_17:30
20021110_17:54

Regards Paolo Laquale
Nov 10 2002 15:19:57 Gregg Gallina
vuchaser@yahoo.com
Possible comet in LASCO C3.


1024x1024 with 0,0 in Bottom Right.

x,y
20021110_1642 640, 15 ?
20021110_1718 638, 22 ?
20021110_1742 632, 28
20021110_1818 629, 37
20021110_1842 627, 43
20021110_1942 618, 52

Comet starts faint (near limb- ?'s) then becomes better defined.

Thanks to Sebatian for giving me advice yesterday... I think this
one is real.

Best regards,

Gregg Gallina
Nov 10 2002 15:45:16 O. C. St.Cyr
cstcyr@grace.nascom.nasa.gov
LASCO C3 on 2002-04-15, crossing under the pylon on that day.

At PA=144, R~23.5 at beginning of day.
Has this one been reported? I can't tell from the listing...

Thanks. CSt
Nov 10 2002 16:15:01 Rainer Kracht
R.Kracht@t-online.de
Kreutz group comet in archival C3 images of 2000 Apr 10.

C3, 1024x1024, 0,0 upper left

32050855.fts 12:18 444, 663
32050856.fts 12:42 447, 659
32050857.fts 13:42 456, 648
32050858.fts 14:18 461, 642
32050859.fts 14:42 464, 637
32050860.fts 15:18 469, 631
32050861.fts 15:42 472, 627
32050862.fts 16:18 477, 619
32050863.fts 16:42 482, 614

small comet, well visible in C3
could be visible in C2 also

Rainer
Nov 10 2002 16:23:13 Gregg vuchaser@yahoo.com
Gallina
Made a mistake... (stupid newbie)


The 0,0 was in the Bottom Left
in my report

Sorry,

Gregg Gallina

Nov 10 2002 16:51:29 Rainer Kracht
R.Kracht@t-online.de
UPDATE Kreutz group comet in archival images of 2000 Apr 10.

C3/C2, 1024x1024, 0,0 upper left

32050855.fts 12:18 444, 663
32050856.fts 12:42 447, 659
32050857.fts 13:42 456, 648
32050858.fts 14:18 461, 642
32050859.fts 14:42 464, 637
32050860.fts 15:18 469, 631
32050861.fts 15:42 472, 627
32050862.fts 16:18 477, 619
32050863.fts 16:42 482, 614

22065586.fts 18:30 405, 997
22065587.fts 18:55 423, 972

small comet, well visible
18:30 elongated/small tail

Rainer
Nov 10 2002 20:24:31 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I have looked at all claims since my last post. First, I

took another look at Rob's claim of a comet in Nov 2, 2002 C2
images. I have decided to not accept this claim. I simply do not
believe the 4th point and there is nothing obvious about the first
three to warrant an X-comet status.

As for the rest, I have accepted three comets...

SOHO# Reporter Date Camera
-------------------------------------
539 D. Evans 02/11/09 C2,C3?
540 R. Kracht 02/11/09 C2
541 R. Kracht 00/04/10 C2,C3

? - I am waiting for the C3 data gap to fill in.


Among the other reports...

-Rob, your Nov 6 21:50:16 claim is indeed 2P/Encke. I actually
sent CBAT these Encke positions when it was first visible.
However, because...

(1)LASCO resolution is considered poor (for comets), and
(2)LASCO sees only a small fraction of a comet's orbit,

...Brian Marsden found our measurements to be unhelpful.

In fact, orbital solutions are possible for SOHO comets only
because they belong to a group whose orbital elements are well
established. I would guess that there are several possible solutions
for our non-group comets, although I really don't know the
statistics off hand.

-Rainer, your C3 positions reported on Nov 7 10:24:11 are
indeed SOHO-101 (C/2000 C4). Good find.

-Ciro, your Nov 9 13:17:24 claim is not real based on the speed
of the positions. If you look at the change in x between
14:42-15:42 & 15:18-16:18, you will see the speeds are not
consistent.

-Gregg, your claim is not real. I do not see anything at your
positions except background noise. Also, the speeds are somewhat
inconsistent between images.

-Chris, that is SOHO-422 (C/2002 G3). This comet does not belong
to any known group, so it can be found on the "Other" page.


Derek
Nov 11 2002 13:13:57 Ciro Fusco
ce101460@guest.tlsoft.it
A possible comet in C2 1024*1024

Date 20021111


Time x,y
14:06 354,975
14:30 359,966
... ...

May possibly be noise - awaiting more images to check....
Ciro
Nov 11 2002 14:29:17 Rainer Kracht
R.Kracht@t-online.de
Ciro, a claim which may be noise should not be posted

with only two positions which indicate that the
presumed comet is not even a member of a known group.

Links to the tracks of the known groups are at:
http://sungrazer.nascom.nasa.gov/cometform.html

I think it is noise and you will find nothing in
the following images.

Rainer
Nov 11 2002 21:46:59 Rob Matson
matsonr@saic.com
2002 Nov 11/12 -- Non-group comet in real-time C2 beginning

some time prior to 23:54. 1024x1024 frames (0,0 in upper
left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2002-11-11 23:54 724 840
2002-11-12 00:06 736 833
00:30 758 818
00:54 782 803

More positions in next post. This is probably a Marsden comet.

--Rob
Nov 11 2002 22:02:41 Rob Matson
matsonr@saic.com
UPDATE 2002 Nov 11/12 -- I've traced the probable Marsden comet

all the way back to 21:30. 1024x1024 frames (0,0 in upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2002-11-11 21:30 583 927
21:54 606 913
22:06 618 906
22:30 642 892
23:06 677 870
23:30 700 855
23:54 724 840
2002-11-12 00:06 736 833
00:30 758 818
00:54 782 803
01:31 817 779
01:54 839 764

--Rob
Nov 12 2002 01:59:08 Maik Meyer
maik@comethunter.de
Confirmation of Rob's possible Marsden group comet. Congrats!


Maik
Nov 12 2002 07:15:35 Rainer Kracht
R.Kracht@t-online.de
UPDATE SOHO-540 (Meyer group comet in C2 02/11/09)

It was visible several hours before my first posted position
0,0 upper left
time x y
0731 882, 708
0806 889, 666
0830 893, 637
0906 899, 594
0930 902, 565
0954 905, 536
1034 909, 487
1056 911, 461
1106 912, 449
1130 913, 421
1154 914, 393
1206 914, 379
1230 915, 351
1254 914, 323
1332 913, 281

Rainer
Nov 12 2002 15:14:08 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello,


I, too, confirm Rob's report of a possible Marsden-group comet
in Nov 11-12, 2002 C2 images. I have not checked C3 images yet.
Rough positions below. This is SOHO-542.

# HEIGHT DATE TIME ANGLE TEL FC COL ROW
5.36 2002/11/11 20:30:05 181.3 C2 10 523.0 62.0
5.14 2002/11/11 21:08:08 186.5 C2 10 561.0 83.0
5.04 2002/11/11 21:30:05 189.9 C2 10 584.0 95.0
4.92 2002/11/11 21:54:05 193.4 C2 10 607.0 110.0
4.87 2002/11/11 22:06:05 195.2 C2 10 618.0 117.0
4.80 2002/11/11 22:30:05 199.2 C2 10 643.0 131.0
4.71 2002/11/11 23:06:06 205.0 C2 10 677.0 153.0
4.69 2002/11/11 23:30:05 209.1 C2 10 701.0 167.0
4.68 2002/11/11 23:54:05 213.2 C2 10 724.0 182.0
4.68 2002/11/12 00:06:05 215.3 C2 10 736.0 190.0
4.71 2002/11/12 00:30:05 219.4 C2 10 759.0 205.0
4.75 2002/11/12 00:54:05 223.3 C2 10 782.0 220.0
4.86 2002/11/12 01:31:47 229.5 C2 10 818.0 245.0
4.96 2002/11/12 01:54:06 232.8 C2 10 839.0 258.0
5.01 2002/11/12 02:06:05 234.6 C2 10 850.0 266.0
5.12 2002/11/12 02:30:05 238.1 C2 10 872.0 282.0
5.26 2002/11/12 02:54:05 241.3 C2 10 894.0 297.0
5.33 2002/11/12 03:06:05 242.9 C2 10 905.0 305.0
5.47 2002/11/12 03:30:05 246.0 C2 10 926.0 321.0
5.64 2002/11/12 03:54:06 248.7 C2 10 948.0 336.0
5.72 2002/11/12 04:06:05 250.1 C2 10 958.0 344.0
5.90 2002/11/12 04:30:05 252.7 C2 10 979.0 360.0
6.08 2002/11/12 04:54:05 255.2 C2 10 1000.0 377.0
6.17 2002/11/12 05:06:05 256.3 C2 10 1010.0 384.0

Derek
Nov 12 2002 16:14:48 John Sachs
imagephoto@blazenet.net
Possible Non Kreutz comet   C3

0,0 Top Left x and y Coordinates
C3 1024x1024 Images x and y Coordinates
20021112 1842 C3 714 409
20021112 1818 C3 713 412
20021112 1742 C3 711 416
20021112 1718 C3 710 418
John
Nov 12 2002 16:24:30 Sebastian Hönig
Sebastian@sungrazer.org
John,


this is most likely Rob's Marsden group comet (SOHO-542)
moving towards perihelion.

Regards, Sebastian
Nov 12 2002 17:02:38 John Sachs
imagephoto@blazenet.net
I loooked at the track in reverse,

and I believe you are right Sebastian.
It is Robs.Thanks.
John
Nov 12 2002 17:11:36 Rainer Kracht
R.Kracht@t-online.de
I found John's C3 comet

time x y
1418 698, 440
1442 700, 437
1518 702, 433
1542 704, 430
1642 708, 422
1718 710, 418

This is definitely not a Marsden group comet
(but could be the same as Rob's C2 comet)

Rainer
Nov 13 2002 04:35:24 Kazimieras Cernis
cernis@itpa.lt
Possible comet in C3 now.

0,0 in bottom left of 1024x1024

Date Time X Y
2002/11/13 6:42 509 343
7:42 505 353
8:18 502 360
8:42 500 363


Kazimieras Cernis
Nov 13 2002 04:47:24 Kazimieras Cernis
cernis@itpa.lt
Update.

The comet is seen in 6 images.
0,0 in bottom left corner of 1024x1024 images.

Date Time X Y
2002/11/13 6:18 510 339
9:18 498 370

Kazimieras Cernis
Nov 13 2002 05:00:27 Maik Meyer
maik@comethunter.de
Confirmation of Kazimieras' Kreutz comet. It should enter C2 soon.


Maik
Nov 13 2002 08:47:24 Sebastian Hönig
Sebastian@sungrazer.org
Kazimieras' comet enters C2 13:31 at 323,1009


Regards, Sebastian
Nov 13 2002 08:52:31 Xavier Leprette
xavier.leprette@wanadoo.fr
Cernis's comet is coming in c2 field at 13:31

13:31 163,509 BW image 512

Xavier Leprette
Nov 13 2002 18:20:37 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, 


Todays Kreutz comet, reported by Kazimieras, is SOHO-543.

# HEIGHT DATE TIME ANGLE TEL FC COL ROW
12.38 2002/11/13 03:18:05 181.9 C3 10 525.0 312.0
12.09 2002/11/13 03:42:06 181.4 C3 10 523.0 317.0
11.80 2002/11/13 04:18:05 180.3 C3 10 519.0 322.0
11.52 2002/11/13 04:42:05 179.8 C3 10 517.0 327.0
11.18 2002/11/13 05:18:05 178.9 C3 10 514.0 333.0
11.07 2002/11/13 05:42:05 178.6 C3 10 513.0 335.0
10.34 2002/11/13 06:42:05 177.2 C3 10 509.0 348.0
9.79 2002/11/13 07:42:05 175.4 C3 10 504.0 358.0
9.41 2002/11/13 08:18:05 174.2 C3 10 501.0 365.0
9.14 2002/11/13 08:42:05 173.7 C3 10 500.0 370.0
8.82 2002/11/13 09:18:05 172.4 C3 10 497.0 376.0
8.55 2002/11/13 09:42:05 171.7 C3 10 496.0 381.0
8.18 2002/11/13 10:20:06 170.2 C3 10 493.0 388.0
7.97 2002/11/13 10:42:05 169.5 C3 10 492.0 392.0
7.62 2002/11/13 11:18:06 167.7 C3 10 489.0 399.0
7.35 2002/11/13 11:42:05 166.8 C3 10 488.0 404.0
7.07 2002/11/13 12:18:05 164.8 C3 10 485.0 410.0
6.81 2002/11/13 12:42:05 163.7 C3 10 484.0 415.0
6.13 2002/11/13 13:42:06 159.7 C3 10 480.0 429.0
# HEIGHT DATE TIME ANGLE TEL FC COL ROW
6.43 2002/11/13 13:31:44 159.6 C2 10 327.0 5.0
6.21 2002/11/13 13:54:05 158.2 C2 10 321.0 27.0
5.61 2002/11/13 14:54:05 153.4 C2 10 305.0 90.0
5.50 2002/11/13 15:06:06 152.4 C2 10 302.0 102.0
5.27 2002/11/13 15:30:05 150.3 C2 10 297.0 127.0

Derek
Nov 14 2002 07:43:20 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C2 images


Date: Nov 14, 2002

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

Time (x,y)
06:06 163,506
06:30

More positions soon.

Sebastian Hönig
Nov 14 2002 07:45:16 Sebastian Hönig
Sebastian@sungrazer.org
Sorry, I came on the submit button of my prepared

form. Didn't want to post this.

I withdraw the report. Again sorry... :(

Sebastian
Nov 15 2002 11:11:28 Scarmato Toni
toniscarmato@libero.it
possible comet in c2 starting at


20021115 0600 718,1004

1024x1024 0,0 top-left

other positions at next post

Toni scarmato
Nov 15 2002 11:16:11 Scarmato Toni
toniscarmato@libero.it
Update possible comet in c2


20021115 1024x1024 0,0 top-left

0600 718,1004
0612 686,982
0624 660,962
0636 643,940
0648 626,917


Regards,

Toni Scarmato
Nov 15 2002 12:37:40 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Date: Nov 15, 2002 

A possible comet in C3 ?

Brief description:
On picture from 2002/11/15 at time lag
13:42 - 15:18 I have found the movinging object(4 images)
0,0 in upper left corner

Time (x,y)
13:42 696,1004
14:18 688,999
14:42 681,994
15:18 676,981


Regards,
Nov 15 2002 12:38:33 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Date: Nov 15, 2002 

A possible comet in C3 ?

Brief description:
On picture from 2002/11/15 at time lag
13:42 - 15:18 I have found the movinging object(4 images)
0,0 in upper left corner

Time (x,y)
13:42 696,1004
14:18 688,999
14:42 681,994
15:18 676,981


Regards,
Sergey Shurpakov
Nov 15 2002 12:59:18 Sebastian Hönig
Sebastian@sungrazer.org
Concerning the last two reports: I cannot confirm

bobth of them.
Sergey, your object`s motion is not consistant.
Look at the x and y positions: x slows down and
the last y position would mean an enormous
acceleration. All of this is something a real object
would not do.

Regards, Sebastian
Nov 15 2002 13:05:17 Sergey Shurpakov Sergey Shurpakov
shurpakov@ tut.by
Nov 15. 2002  C3


The object it is enough bright, a little extended...
Revision for message:
x y
2002/11/ 15 15:18 675 987

Sergey Shurpakov
Nov 15 2002 13:54:25 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
15 Nov  2002

The Translator of the Computer...
Sebastian!
I have not read your messages and has done the correction for the last position...
11/15/ 2002 15:18 x = 675, y = 987
The Hurry... thank You... But but then moving the object will wholly be correct...! So?
Sergey Shurpakov
Nov 15 2002 17:58:27 Rob Matson
matsonr@saic.com
2002 Nov 15 -- Dim Kreutz comet in real-time C2 beginning at

20:24. 1024x1024 frames (0,0 in upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-15 20:24 542 1016
20:36 537 1005
20:48 532 995
21:12 521 975
21:24 517 964
21:36 512 954

--Rob
Nov 15 2002 18:06:30 Rob Matson
matsonr@saic.com
UPDATE 2002 Nov 15 -- Two more positions for Kreutz comet in real-time C2.  1024x1024 frames (0,0 in upper left):


YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-15 21:48 507 944
22:00 502 933

Good thing for high cadence -- I doubt I would have seen it
without the 12-minute revisit rate. --Rob
Nov 15 2002 18:53:51 Sebastian Hönig
Sebastian@sungrazer.org
Confirmation of Rob's Kreutz comet. Oh dear, this

one is REALLY on the dim side... ;)

Regards, Sebastian
Nov 16 2002 02:22:14 David Evans
dave.nokia3330@orange.net
A small faint Kreutz comet in recent C2 gif images.

Visible in 7 frames. 1024x1024 0,0 Top-Left.

2002/11/08

09:06 693,1015
09:30 681, 994
09:54 667, 975
10:06 661, 964
10:30 646, 942
10:54 632, 923
11:06 626, 912

- Dave
Nov 16 2002 03:02:31 Sebastian Hönig
Sebastian@sungrazer.org
Dave,


sorry, I cannot confirm your comet - just a
no-detection from my side.

Regards, Sebastian
Nov 16 2002 03:51:49 David Evans
dave.nokia3330@orange.net
Update: Re my claim of Nov 16 2002 02:22:14


Hi Sebastian,

Thank you for responding so fast. I have uploaded an animation
of the claim to the Yahoo sohohunter clubsite in the Photo
section and it shows the movement of the Kreutz comet quite well.

This is a very faint and difficult find.... Hope this helps.

- Dave
Nov 16 2002 04:10:03 Sebastian Hönig
Sebastian@sungrazer.org
Ah well, was my fault. I took the images of

Nov 09. Sorry Dave. Yes, I see something moving
there

Regards, Sebastian
Nov 16 2002 10:56:11 XingMing Zhou
zh_x_m@163.net
A sungrazer comet in c2 images now(B/W). 

with a short tail.
0,0 in upper left corner

Images Size X, Y

20021116_1524_c2.gif 512 x 512 162, 511
20021116_1536_c2.gif 512 x 512 159 506

Waitting for more images to be confirmed.

Regards,
XingMing Zhou
Nov 16 2002 11:14:00 XingMing Zhou
zh_x_m@163.net
Update

A sungrazer comet in c2 images now(B/W).
with a short tail.
0,0 in upper left corner

Images Size X, Y

20021116_1524_c2.gif 512 x 512 162, 511
20021116_1536_c2.gif 512 x 512 160 504
20021116_1548_c2.gif 512 x 512 159 499
20021116_1600_c2.gif 512 x 512 158 492

Regards,
XingMing Zhou
Nov 16 2002 11:22:43 Scarmato Toni
toniscarmato@libero.it
New comet in c2 1024x014 0,0 top left 


starting at

20021116 1524 324,1020

other positions at next post

Toni scarmato
Nov 16 2002 11:27:09 Scarmato Toni
toniscarmato@libero.it
The comet is covered by the number 3 at


20021116 1536 322,1007

Congrats XingMing

Toni
Nov 16 2002 12:47:10 Paolo Laquale
paololaq@tin.it
XingMing comet update:

I see the comet in following C2 images:(1024x1024; 0,0 upper left)
x,y
20021116_16:00 315,985
20021116_16:12 313,973
20021116_16:24 310,961

Nice comet: congratulations XingMing!

Regards Paolo Laquale
Nov 16 2002 17:16:36 michael boschat
aa063@chebucto.ns.ca
Possible comet in C3 images - 20021116_1918 UT
512 x 512 images used. 0,477 in lower left corner.
UT XY
1918 277, 364
1942 280, 361
2018 281, 357
2042 283 352
x-coordinates are probably correct,but y-coordinates may be off by
several pixels.

Mike B.
Nov 16 2002 20:36:53 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Okay, I've had a look at all the recent claims.  For now, I can 

definitely confirm XingMing's claim in C2. I'm still debating as
to whether I see it in C3 however. Very rough positions below.

Toni, your claim is just random noise and even then the speeds
vary erratically between some images.

Sergey, I saw nothing above the noise level at your positions.

I still want to take another look at the faint C2 claims from Rob
and Dave before I make a decision. I find it's always best to look
at these extraordinary faint claims over the span of a few days.

By the way, Dave, I saw your movie on the yahoo chat site. I think
you may have picked up some noise from the gif processing as the
fits images do not reveal the two flanking anomalies shown in
every frame of your movie. I only see this structure in the 9:30
frame of the fits images. Nevertheless, I do see something near
the positions you give. Those gifs can be deceiving!


# COMMENT: SOHO-54? X.-M. Zhou
# HEIGHT DATE TIME ANGLE TEL FC COL ROW
6.46 2002/11/16 15:24:05 159.4 C2 10 324.0 3.0
6.33 2002/11/16 15:36:05 158.6 C2 10 321.0 16.0
6.22 2002/11/16 15:48:06 157.8 C2 10 318.0 27.0
6.09 2002/11/16 16:00:37 157.0 C2 10 315.0 40.0
5.99 2002/11/16 16:12:05 156.2 C2 10 312.0 51.0
5.87 2002/11/16 16:24:05 155.4 C2 10 310.0 63.0
5.76 2002/11/16 16:36:05 154.6 C2 10 308.0 74.0
5.63 2002/11/16 16:48:05 153.4 C2 10 304.0 88.0
5.54 2002/11/16 17:00:05 152.6 C2 10 302.0 100.0
5.40 2002/11/16 17:12:05 151.4 C2 10 299.0 113.0

SOHO numbers will be assigned after Rob and Dave's claims are
decided.

Derek
Nov 17 2002 14:09:23 Rainer Kracht
R.Kracht@t-online.de
possible comet in C2 images

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

Date Time x y
20021117 1836 450 1016
20021117 1848 446 1008
20021117 1900 442 998

Rainer
Nov 17 2002 14:38:28 Rainer Kracht
R.Kracht@t-online.de
UPDATE and confirmation of small Kreutz 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
20021117 1836 450 1016
20021117 1848 446 1008
20021117 1900 442 998
20021117 1912 438 988

Rainer
Nov 17 2002 14:38:41 Rob Matson
matsonr@saic.com
I can confirm Rainer's C2 find.  Object continues at

19:12 to X=438, Y=988 (expanded from 512x512). Nice
real-time recovery. --Rob
Nov 17 2002 15:43:28 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2

1024*1024
date 20021117

time x,y
1836 451,1017
1900 444,999
1912 439,989
... ....
Nov 17 2002 15:47:08 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2

1024*1024
date 20021117

time x,y
1836 451,1017
1848 447,1008
1900 444,999
1912 439,989
... ....

Ciro
Nov 17 2002 16:14:55 fusco ciro
ce101460@guest.tlsoft.it
Other information approximately the comet in c2


1024*1024
date 20021117

time x,y
19:24 435,980
19:36 432,972
19:48 428,961
20:00 424,950

Ciro
Nov 17 2002 16:17:04 Sebastian Hönig
Sebastian@sungrazer.org
Ciro,


you need not repeat reports of this comet. Please
scroll down and see that it was discovered by
Rainer and confirmed by Rob. By the way: 4 positions
are enough, there's no need in reporting more and
more.

Regards, Sebastian
Nov 17 2002 16:45:24 Rob Matson
matsonr@saic.com
2002 Nov 17 -- Is Rainer's Kreutz comet visible in real-time C3?

Looks like something coming and going in the following frames.
1024x1024 coordinates (0,0 in upper left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-17 17:18 521 646
17:42 520 643
18:18 518 638
18:42 516 635
19:18 513 630 (@ noise level)

--Rob
Nov 17 2002 17:39:48 David Evans
dave.nokia3330@orange.net
Another faint claim... This one concerns a possible C2 Kreutz

comet visible in 6 images of 2002/05/01.

1024x1024 0,0 Top-Left

02:26 617, 993
02:50 619, 978
03:06 620, 968
03:26 622, 956
03:50 624, 941
04:06 625, 929

Perhaps somewhat difficult to locate at first, but once found
the object can be followed quite easily.

- Dave

Nov 17 2002 19:51:54 Sebastian Hönig
Sebastian@sungrazer.org
Dave,


I downloaded the fits images and looped them many
times. Result: nothing visible at this positions
(May 01, 2002; fits 22117991 (02:06) - ..97 (04:06); processed via dark + flatfield).

Regards, Sebastian
Nov 18 2002 11:25:26 Scarmato Toni
toniscarmato@libero.it
Possibe comet in c2


positions 1024x1024 0,0 top-left

20021118

1348 58,640
1400 65,616
1412 72,590
1424 79,565


Regards,

Toni Scarmato
Nov 18 2002 14:07:56 Rainer Kracht
R.Kracht@t-online.de
b/w 512*512 from the LASCO website

enlarged to 1024*1024
0,0 in upper left corner

Date Time x y
20021118 1836 500 972
20021118 1848 494 962

Rainer
Nov 18 2002 14:18:38 Rainer Kracht
R.Kracht@t-online.de
Udate Kreutz 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
20021118 1836 500 972
20021118 1848 494 962
20021118 1900 490 952
20021118 1912 486 940

Rainer
Nov 18 2002 14:24:26 Sebastian Hönig
Sebastian@sungrazer.org
Confirmation of Rainer's sungrazer. Congrats.


Regards, Sebastian
Nov 19 2002 05:26:57 Raymund John Ang
rjyang@eudoramail.com
Unidentified Object in LASCO C3 images.


Date: Nov. 18, 2002 (2002-11-18)

Brief Description:
A "star-like" point seems to shift its position against the backgroud stars. I am positive that the object is moving.

Positions: 1024x1024 images, (0,0) upper left

Time (x,y)

06:42 767,212
07:18 767,212
07:42 767,212
08:18 767,212
08:42 767,212
09:18 767,212

Regards,
Raymund
Nov 19 2002 05:59:35 Maik Meyer
mai@comethunter.de
Raymund,


this is definitely an image processing artefact. Non-moving points
are either this or cold or hot pixels. Sorry, no real object.

Hope this helps, Maik
Nov 19 2002 09:33:31 Maik Meyer
maik@comethunter.de
Kreutz sungrazer in real-time images

b/w extrapolated to 1024x1024, 0,0 upper left

2002/11/19

13:27 520, 980
13:50 510, 964
14:06 504, 950

Medium bright at first, becoming fainter. Confirmation hopefully) with following images.

Maik
Nov 19 2002 09:40:38 XingMing Zhou
zh_x_m@163.net
Possible Kreutz comet in c2 images now(B/W). 

It's fuzzy and with tail.
0,0 in upper left corner

Images Size X, Y

20021119_1327_c2.gif 512 x 512 260, 491
20021119_1350_c2.gif 512 x 512 256 482
20021119_1406_c2.gif 512 x 512 252 476

Regards,
XingMing Zhou
Nov 19 2002 09:50:59 Maik Meyer
maik@comethunter.de
Final confirmation of Kreutz comet in real-time C2 images

1024x1024, 0,0 upper left, 2002/11/19

13:27 520, 981
13:50 510, 964 (b/w extrapolated)
14:06 504, 950 (b/w extrapolated)
14:26 498, 932 (b/w extrapolated)

There are previous images with the comet (from about 12:24) which are
currently delayed.

Maik
Nov 19 2002 09:53:11 XingMing Zhou
zh_x_m@163.net
Possible Kreutz comet in c2 images now(B/W). 

It's fuzzy and with tail.
0,0 in upper left corner

Images Size X, Y

20021119_1327_c2.gif 512 x 512 260, 491
20021119_1350_c2.gif 512 x 512 256 482
20021119_1406_c2.gif 512 x 512 252 476
20021119_1426_c2.gif 512 x 512 249 466

Regards,
XingMing Zhou
Nov 19 2002 09:58:18 XingMing Zhou
zh_x_m@163.net
Confirmation of Maik's comet,you first report, Congrats.


Regards,
XingMing Zhou
Nov 19 2002 13:13:18 Rainer Kracht
R.Kracht@t-online.de
possible faint non 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
20021119 1626 1016 88
20021119 1650 994 72
20021119 1706 982 64
20021119 1726 968 56
20021119 1750 950 48

Rainer

Nov 19 2002 14:20:26 Rainer Kracht
R.Kracht@t-online.de
Update possible faint non group comet in C2 images

It's not convincing in 1024 * 1024
Sorry, looks like noise.

Rainer
Nov 19 2002 17:47:54 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C3 images


Date: Nov 19, 2002

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

Time (x,y)
20:18 599,762
20:42
21:18

More positions soon.

Sebastian Hönig
Nov 19 2002 17:47:57 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C3 images


Date: Nov 19, 2002

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

Time (x,y)
20:18 599,762
20:42
21:18

More positions soon.

Sebastian Hönig
Nov 19 2002 17:51:37 John Sachs
imagephoto@blazenet
Possible  New Kreutz comet   C3

0,0 Top Left x and y Coordinates
C3 1024x1024 Images x and y Coordinates
20021119 2018 C3 599 763
20021119 1942 C3 603 769
20021119 1842 C3 607 777
20021119 1818 C3 609 780
Thanks
John
Nov 19 2002 17:55:06 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C3 images

(Update of previous report)

Date: Nov 19, 2002

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

Time (x,y)
17:18 614,788
17:42 612,785
18:18 609,780
18:42 607,776
19:42 602,767
20:18 599,762
20:42 598,759
21:18 595,754


Sebastian Hönig
Nov 19 2002 17:59:24 John Sachs
imagephoto@blazenet.net
Congrats Sebastian.

On the comet in C3 today.
John
Nov 20 2002 01:27:54 Thomas Remmert
tremmert@kquest.net
Possible comet in LASCO C2 images


Date: Nov, 20 2002

Positions: 1024x1024 images, (0,0) upper left

Time (x,y)

08:50 199 23
09:06 201 23
09:26 204 23
09:50 206 23

Regards,

Thomas Remmert
Nov 20 2002 01:36:12 Maik Meyer
maik@comethunter.de
Thomas,


the images with that time stamp are note yet taken for Nov. 20.
What day do you really mean? Second, you y coordinates do not
change meaning that is is a star.

Maik
Nov 20 2002 04:03:49 Rob Matson
matsonr@saic.com
2002 Nov 20 -- There now appears to be a dimmer fragment

leading Sebastian's C3 comet. 1024x1024 coordinates
(0,0 in upper left corner):

Hoenig 2nd frag.
YYYY-MM-DD HH:MM Col Row Col Row
---------- ----- --- --- --- ---
2002-11-20 06:18 552 674 548 668
06:42 550 670 546 664
07:42 546 660 542 654 (expanded from 512x512)

(Apologies for now waiting for the 1024x1024 color image
to appear for 07:42, but it seems to be taking forever
and I need to get to sleep.)

--Rob
Nov 20 2002 09:52:36 Rainer Kracht
R.Kracht@t-online.de
Sebastian's C3 Kreutz comet has entered the C2 field

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

Date Time x y
20021120 1406 494 1020
20021120 1426 488 1004

Rainer
Nov 20 2002 09:52:39 Sebastian Hönig
Sebastian@sungrazer.org
My yesterday's C3 comet enters C2 at 


14:06 494,1020
14:26 488,1004

Regards, Sebastian
Nov 20 2002 11:30:21 fusco ciro
ce101460@guest.tlsoft.it

Possible comet in C2
1024*1024
date 20021120

time x,y
1450 479,984
1506 474,969
...

aspect other images for the confirmation

Regards,
Ciro
Nov 20 2002 11:35:53 fusco ciro
ce101460@guest.tlsoft.it
Excused only now me are shrewed that the comet from marked me has been already announced
Nov 20 2002 15:46:50 Rob Matson
matsonr@saic.com
2002 Nov 20 -- UPDATE on the possible Kreutz fragment that I

reported earlier leading Sebastian's C3 comet. Now that more
1024x1024 frames are available, I have my doubts that it was
real. While something dim appears to lead the comet in 5 out
of 6 frames, it isn't bright enough to inspire much confidence. Furthermore, it doesn't show up in C2. But for completeness, here's what I have:

Hoenig's 2nd frag
YYYY-MM-DD HH:MM Col Row Col Row
---------- ----- --- --- --- ---
2002-11-20 05:18 557 683 553 680
05:42 555 680 551 676
06:18 552 674 548 668
06:42 550 670 546 664
07:42 546 661 -------
08:18 543 655 540 649

--Rob
Nov 20 2002 18:26:34 Rob Matson
matsonr@saic.com
Turns out there *was* a dim Kreutz comet preceding Sebastian's

comet. It's visible in C2 beginning at 08:26. 1024x1024
approximate coordinates (0,0 in upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-20 08:26 495 1014
08:50 486 994
09:06 480 980
09:26 474 963
09:54 464 941
10:06 (duplicated strip)

--Rob
Nov 21 2002 03:00:42 Maik Meyer
maik@comethunter.de
Confirmation of Rob's dim Kreutz comet preceding Sebastian's. 

Eagle-eye Rob. ;) The question remains if it is connected with the
object seen in C3.

Maik
Nov 21 2002 10:36:28
 
Nov 21 2002 19:06:25 David Evans
dave.nokia3330@orange.net
Possible comet in real-time C


2002/11/21 Lasco B/W images. 0,0 Top-Left.

23:26 124, 507

- Dave
Nov 21 2002 19:08:53 David Evans
dave.nokia3330@orange.net
Re my previous post


Positions refer to real-time C2

23:26 124, 507
23:50 122, 595

- Dave
Nov 21 2002 19:11:42 David Evans
dave.nokia3330@orange.net
Re my previous post


A positional error...

23:26 124, 507
23:50 122, 495 'Correction'

(Sorry, it's been a long working day for me *smiles*)

- Dave
Nov 21 2002 19:20:46 Rob Matson
matsonr@saic.com
Probable Kreutz comet in real-time C2.  Waiting for some

more images, but has a tail so it's pretty obvious.
1024x1024 coords expanded from 512x512 B&w coords (0,0
in upper left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-21 23:26 246 1010
2002-11-22 00:06 240 972

--Rob
Nov 21 2002 19:26:54 Rob Matson
matsonr@saic.com
2002 Nov 21/22 UPDATE.  I see that Dave identified the same

first data point as I, but his second point must be wrong.
A 1024x1024 color frame is available now for the 23:26
image -- updated coordinates for it below:

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-21 23:26 246 1012

--Rob
Nov 21 2002 19:34:06 Rob Matson
matsonr@saic.com
2002 Nov 21/22 UPDATE.  Dave's comet is easily visible in C3.

I don't know how I missed it! Here are a few data points
(1024X1024, 0,0 in upper left corner):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ---
2002-11-21 19:42 472 639
20:18 470 632
20:42 469 628
21:18 468 621

--Rob
Nov 21 2002 19:36:30 David Evans
dave.nokia3330@orange.net
Re: Comet in real-time C2


Update to my initial posting of Nov 21 2002 19:06:25
4 positions are now available for confirmation.

Lasco B/W images. 512x512. 0,0 Top-Left.

2002/11/21

23:26 123, 507
23:50 122, 495

2002/11/22

00:06 121, 487
00:26 120, 478

This is a medium bright C2 Kreutz comet with a short tail...

- Dave
Nov 22 2002 00:51:27 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, the comet frenzy appears to continue. I have made decisions

on all claims. The results are below...

SOHO# Reported By Date Camera
------------------------------------------
544 R. Matson 02/11/15 C2
545 X.-M. Zhou 02/11/16 C2,C3?
546 R. Kracht 02/11/17 C2
547 R. Kracht 02/11/18 C2
548 M. Meyer 02/11/19 C2
549 S. Hoenig 02/11/19-20 C2,C3
550 R. Matson 02/11/20 C2
551 D. Evans 02/11/21-22 C2,C3


Rob, your C3 positions for SOHO-546 do not match the trajectory
of the C2 positions. Looks like it was noise. Also, as you've
probably guessed, the C3 positions for your claim (SOHO-550) do
not match your C2 positions...plus I really didn't see much
at the positions anyway.

Dave, I looked at your pending claim with several processing
methods. Some looked better than others but, in the grand scheme,
none convinced me. Each processing method agrees on the same
coordinates for your object but they usually differed from the ones
you provided...albeit not by much. However, the deviation was
significant enough to suggest an inconsistent change in the
y-coordinate. It appears to be noise.

If anyone has questions or comments, please email me.

Derek
Nov 22 2002 07:44:48 Kazimieras Cernis
cernis@itpa.lt
Possible comet in C3 now.

0,0 in bottom left corner in 1024 images.

Date Time X Y
2001/11/22 11:18 484 336


More positions soon.

Kazimieras Cernis
Nov 22 2002 07:47:55 Kazimieras Cernis
cernis@itpa.lt
The comet in C3 now.

0,0 in bottom left corner in 1024 images.

Date Time X Y
2001/11/22 8:42 491 309
9:18 489 317
10:42 485 330
11:18 484 336





Kazimieras Cernis
Nov 22 2002 08:22:15 Kazimieras Cernis
cernis@itpa.lt
Update. Corrected ccordinates.

The Kreutz group comet in C3 now.
0,0 in bottom left corner in 1024x1024 images.

Date Time X Y
2001/11/22 8:18 491 305
8:42 491 310
9:18 489 316
10:42 485 329
11:18 484 336
11:42 482 341

Kazimieras Cernis
Nov 22 2002 09:36:59 Sebastian Hönig
Sebastian@sungrazer.org
Confirmation of Kazimiers' sungrazer. Congrats.


Regards, Sebastian
Nov 22 2002 10:33:43 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2 1024*1024

Date 20021122

Time X,Y
0750 439,922
0806 436,906
0826 435,890
0850 433,879

Regards,
Ciro
Nov 22 2002 12:39:26 David Evans
dave.nokia3330@orange.net
Possible comet in real-time C3


2002/11/22 Lasco B/W images. 512x512. 0,0 Top-Left

15:18 285, 374
16:07 283, 371
16:42 281, 368
17:18 280, 365

- Dave
Nov 22 2002 12:47:50 Scarmato Toni
toniscarmato@libero.it
Possible comet in c3 starting at


20021122 1518 566,746

1024x1024 0,0 top-left


Toni Scarmato
Nov 22 2002 12:49:06 Scarmato Toni
toniscarmato@libero.it
Update Possible comet in c3 


20021122

1518 566,746
1607 564,738
1642 562,734

1024x1024 0,0 top-left


Toni Scarmato
Nov 22 2002 12:53:11 Sebastian Hönig
Sebastian@sungrazer.org
Confirmation of Dave's C3 comet. Congrats.


Regards, Sebastian
Nov 22 2002 12:54:59 Scarmato Toni
toniscarmato@libero.it
Update Possible comet in c3 


20021122

1342 575,760
1418 572,754
1442 570,750
1518 566,746
1607 564,738
1642 562,734

1024x1024 0,0 top-left


Toni Scarmato
Nov 22 2002 13:11:45 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Date: Nov 22, 2002 

A possible comet in C3...

Brief description:
On picture from 2002/11/22 at time lag
14:18 - 16:07 I have found the movinging object(4 images)
0,0 in upper left corner
1024x1024

Time (x,y)
14:18 475,650
14:42 474,646
15:18 473,639
16:07 466,655


Regards,
Sergey Shurpakov
Nov 22 2002 13:17:56 David Evans
dave.nokia3330@orange.net
A possible 2nd (quite faint) comet in real-time C3


2002/11/22 Lasco B/W images. 512x512. 0,0 Top-Left


14:42 235, 344
15:18 235, 341
16:07 236, 337
16:42 236, 334
17:18 235, 330

- Dave
Nov 22 2002 13:41:30 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
The Computer translator...

The Addition...to message below...
The comet falls into corona("the ray") Sun and the last coordinate possible not very exact...

Òîni! I had two scenes 14:18 and 14:42... I not to manage something notice... Can in group someone will even so look the more experienced watcher... Excuse me...

Nov 22 2002 13:55:14 Sebastian Hönig
Sebastian@sungrazer.org
Regardsing all the recent claims:

- As already stated Dave's comet was seen by me
- Toni's claims conincide with Dave's positions
- Sergey's claim cannot be confirmed
- Dave's 2nd claim also is a no-detection. Just a hint:
Faint objects should be reported only in 1024 images as
b/w provides a lot of noise.

Regards, Sebastian
Nov 22 2002 14:33:24 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Date: Nov 22, 2002 

A possible comet in C3...

Brief description:
On picture from 2002/11/22 at time lag
14:18 - 16:07 I have found the movinging object(4 images)
0,0 in upper left corner
1024x1024

Time (x,y)
14:18 388,230
14:42 393,237
15:18 397,241
16:07 404,246


Regards,
Sergey Shurpakov
Nov 22 2002 14:37:43 Rainer Kracht
R.Kracht@t-online.de
possible comet in C2 images

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

Date Time x y
20021122 1854 252 1018
20021122 1931 248 982

Rainer
Nov 22 2002 14:50:25 David Evans
dave.nokia3330@orange.net
It is possible that Rainer's C2 find may be the C3 comet found

by Kazimieras Cernis earlier today...

- Dave
Nov 22 2002 15:00:37 Rainer Kracht
R.Kracht@t-online.de
Update Kreutz group comet in C2 images


Date Time x y
20021122 1854 252 1018
20021122 1931 248 982
20021122 1954 246 960

yes, I think it's the C3 comet found
by Kazimieras Cernis earlier today...

Rainer
Nov 22 2002 15:19:28 Rob Matson
matsonr@saic.com
2002 Nov 22 -- Another Kreutz comet enters C2 below Kazimieras

Cernis' C3/C2 comet at 20:06. No doubt paired to it. 1024x1024
coordinates (0,0 upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-22 20:06 230 1018

--Rob
Nov 22 2002 15:23:58 Sebastian Hönig
Sebastian@sungrazer.org
One position with no other image available, no tail, no movement?


Regards, Sebastian
Nov 22 2002 15:48:26 Rob Matson
matsonr@saic.com
2002 Nov 22 -- I must humbly withdraw my last post.  Sebastian

was absolutely right. My confidence in the single position was
based on the optical signature of the blur, the positional
association with Cernis' comet immediately above it, and the
appearance in C3 that Cernis' comet had multiple components.
(The latter may still prove true). Apologies for cluttering
the list. --Rob
Nov 22 2002 16:33:40 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2 1024*1024

20021122

time x,y

1931 248,981
1954 246,959
2006 245,947

more informations after immages

Regards,
Ciro, Antonio
Nov 22 2002 16:37:59 Sebastian Hönig
Sebastian@sungrazer.org
Antonio,


this comet is Kazimieras' C3 find as it was already
mentioned in some posts below. Please read the board
before reporting.

Regards, Sebastian
Nov 22 2002 16:46:03 David Johnson
dej257@worldnet.att.net
Fairly bright comet found in C3 from today (11/22/02): (1024x1024, 0 in top left corner)


16:07 - 566,740
16:42 - 564,734
17:18 - 560,728
18:18 - 555,721
18:42 - 554,718
19:42 - 551,709

David E. Johnson
Nov 22 2002 16:50:24 David Johnson
dej257@worldnet.att.net
I withdraw my report, as it appears to be the same as reported by Toni Scarmato earlier today.  However, I can confirm Toni's report.


David E. Johnson
Nov 22 2002 16:53:02 Sebastian Hönig
Sebastian@sungrazer.org
David, 


Dave Evans was the first who reported it, NOT Toni Scarmato. Below a list of todays claims that
could be also detected by others.

Regards, Sebastian

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

Date Time Observer Tel Visibility
Nov 22 2002 07:44:48 K.Cernis C3 08:18 - 12:42
C2 18:54 - 21:30
Nov 22 2002 12:39:26 D.Evans C3 13:42 - (still visible)
Nov 22 2002 17:32:28 Jim Ruebush
ruebush@avalon.net
C2 images


20021122 19:31 x 248 y 41 0,0 in lower left
19:54 x 246 y 63
20:06 x 245 y 75
20:30 x 241 y 99


Jim
Nov 22 2002 17:38:13 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Jim, as has been mentioned several times below (and in the post

immediately before yours) this is the K. Cernis comet from
earlier today.

Derek
Nov 23 2002 03:21:33 XingMing Zhou
zh_x_m@163.net
David Evans's comet in C2 now ,visble from 07:31 to 08:06,

Very Bright,nice comet!

XingMing Zhou
Nov 23 2002 03:47:57 David Evans
dave.nokia3330@orange.net
Update 


Re: my C3 comet find of yesterday. Nov 22 2002 12:39:26.

This medium bright comet has now entered the C2 field of view.

2002/11/23

Initial C2 position - (1024x1024 images, 0,0 Top_left)

07:31 436, 1017

- Dave
Nov 23 2002 05:08:13 David Evans
dave.nokia3330@orange.net
Monitoring an interesting movement in real-time C3.


Lasco B/W images. 512x512. 0,0 Top-Left

2002/11/23

07:42 260, 364
08:42 257, 358
09:42 254, 353

- Dave
Nov 23 2002 05:26:32 Raymund John Ang
rjyang@eudoramail.com
Possible comet in LASCO C3 image.


Date: Nov. 23, 2002

Position: 1024x1024, (0,0) upper left

Time
0218 524,648
0242 522,644
0418 516,629
0518 512,619

Raymund
Nov 23 2002 05:33:52 David Evans
dave.nokia3330@orange.net
Hi Raymund,


You have reported the same comet I found yesterday at
Nov 22 2002 12:39:26.

The comet has now entered the C2 field of view.

- Dave
Nov 23 2002 05:42:41 Raymund John Ang
rjyang@eudoramail.com
Possible Comet in LASCO C3 images.


Date: Nov. 23, 2002

Position: 1024x1024, (0,0) upper left

Time
0218 524,648
0242 522,644
0418 516,629
0518 512,619

Raymund
Nov 23 2002 06:02:49 Maik Meyer
maik@comethunter.de
Raymund,


you a) don't have to repeat the same posting several times and
b) should check if the object you claim has not already been
reported! If you would have done this you would have seen that
this was already found yesterday by Dave Evans. Please try to
follow these guidelines in order to keep this board free from
multiple claims/posting.

Maik
Nov 23 2002 06:11:19 Raymund John Ang
rjyang@eudoramail.com
(More positions)


Date: Nov. 23, 2002

Positions: 1024x1024, (0,0) upper left

Time
0018 532,667
0042 530,663
0142 526,654

Date: Nov. 22, 2002 (1024x1024) (0,0) upper left

Time
2342 534,672

Raymund
Nov 23 2002 07:02:58 Sebastian Hönig
Sebastian@sungrazer.org
Dave,


I cannot see anything at the indicated positions
for the "interesting movement" (comet?).

Regards, Sebastian
Nov 23 2002 17:19:36 Derek Hammer
derek@sungrazer.nascom.nasa.gov
This has been quite an impressive week for comets! By my count,

we've had 10 Kreutz comets visible over a span of 8 days.

Here are two recent confirmations...

SOHO# Reported By Date Camera
-----------------------------------------
552 K. Cernis 02/11/22 C2,C3
553 D. Evans 02/11/22-23 C2,C3


All claims have been checked.

Derek
Nov 23 2002 17:56:36 michael boschat
aa063@chebucto.ns.ca
Possible comet in C3 @ 20021123_2018 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.


0,477 in lower left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20021123_2018.gif 512 x 512 300, 305
20021123_2042.gif 512 x 512 298, 303
20021123_2118.gif 512 x 512 294, 300
20021123_2142.gif 512 x 512 292, 299

----------------
Michael Boschat
Nov 24 2002 03:48:21 Gregg Gallina
vuchaser@yahoo.com
Possible faint comet in C3... traced back to 21:18Z


Here are locations with 0,0 being lower left in 1024x1024 image.

x, y UTC
547, 332 21:18
545, 335 21:42
542, 338 22:18
539, 343 23:18
537, 346 23:42

The last two images are most clear, I was hoping
for a few more images before I posted, but to no avail.
So here is my best guess.

Best regards,

Gregg Gallina


Nov 24 2002 13:58:52 David Evans
dave.nokia3330@orange.net
Possible comet in real-time C3


Lasco B/W images. 512x512. 0,0 Top-left.

2002/11/24

18:42 257, 373

- Dave
Nov 24 2002 14:12:46 Sebastian Hönig
Sebastian@sungrazer.org
Dave,


definitely not. Nothing visible moving in 18:18
and 18:42. Have you seen it in 18:18? If so please
note it, if not: do not report on a single image (see
yesterday and many times before).

Regards, Sebastian
Nov 25 2002 08:24:18 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible comet in a real-time C2 BW images now.


The object is starting on 2002/11/25 at 12:06
Perhaps two fragments

Rough positions: (0,0) upper left, 512x512 images
col,row
12:06 183,507 and 184,505
12:30

I'm waiting other images to confirm the object.

Xavier Leprette
Nov 25 2002 08:30:10 michael boschat
aa063@chebucto.ns.ca
Disregard my post of Nov 23 2002 17:56:36

nothing else seen.

Also, note that M4 - gloublar cluster in Scorpius is
now in the left part of the C3 field. It is not a comet.

Mike B
Nov 25 2002 08:41:44 Xavier Leprette
xavier.leprette@wanadoo.fr
Disregard my last report, noisy or ray cosmic. Sorry


Xavier
Nov 25 2002 09:03:38 Scarmato Toni
toniscarmato@libero.it
Possible comet in c3


position 1024x1024 0,0 top-left

20021115

0842 506,692
0918 502,690
0942 499,688
1020 495,686


I am waiting other images to confirm.


Regards,

Toni Scarmato
Nov 25 2002 09:24:18 Scarmato Toni
toniscarmato@libero.it
No consider my last report.


Regards,

Toni
Nov 25 2002 10:34:58 XingMing Zhou
zh_x_m@163.net
Possible Kreutz group comet in real-time C2 images.

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

Images Size X, Y

20021125_0131_c2.gif 512 x 512
20021125_0154_c2.gif 512 x 512 210, 503
20021125_0206_c2.gif 512 x 512 208, 498
20021125_0154_c2.gif 512 x 512 205, 488

Regards, XingMing Zhou
Nov 25 2002 10:40:53 XingMing Zhou
zh_x_m@163.net
Update

Possible Kreutz group comet in real-time C2 images.
It's faint,with a tail.
0,0 in upper left corner

Images Size X, Y

20021125_0154_c2.gif 512 x 512 210, 503
20021125_0206_c2.gif 512 x 512 208, 498
20021125_0230_c2.gif 512 x 512 205, 488
20021125_0254_c2.gif 512 x 512 202, 478
20021125_0306_c2.gif 512 x 512 201, 473

Regards, XingMing Zhou
Nov 25 2002 10:50:49 Sebastian Hönig
Sebastian@sungrazer.org
Confirmation of Xingming's sungrazer. Congrats!


Regards,
Sebastian
Nov 25 2002 11:02:13
 
Nov 25 2002 11:06:23 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2

1024*1024 20021125
(0,0 top-left)

date x,y
1331 902,985
1354 885,952
1406 875,928

aspect other images for confirmation.
Regards,
Ciro
Nov 25 2002 11:23:35 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 2002/11/24 from 09:30 to 10:56

Origin : top-left corner of 1024x1024 frames

col, row
09:30 437,1013

Xavier Leprette
Nov 25 2002 11:26:56 Xavier Leprette
xavier.leprette@wanadoo.fr

The object is faint, and it is visible in 4 images
on 2002/11/24 from 09:30 to 10:56
UPDATE :

Origin : top-left corner of 1024x1024 frames

col, row
09:30 437,1013
09:54 430,992
10:34 420,959
10:56 414,941

Xavier Leprette
Nov 25 2002 12:48:10 Mark Ledingham
mark-le@online.no
Monitoring possible Kreutz object in real-time C2 images. 

1024x1024 images; 0,0 in top left. More positions will follow
as these are made available.

Date Time x y
2002/11/25 13:54 C2 (406, 1015)
2002/11/25 16:50 C2 (365, 968)
2002/11/25 14:30 C2 (349, 938)

- Mark Ledingham

Nov 25 2002 12:50:14 Mark Ledingham
mark-le@online.no
Sorry, the time should read 13:54, 14:06 and 14:30

in my last report.

- Mark Ledingham
Nov 25 2002 12:53:01 Sebastian Hönig
Sebastian@sungrazer.org
- Confirmation of Xavier's Kreutz comet. Congrats!


- Mark, check your pixel/time and you will see
that this is only an alignment of cosmic rays

Regards, Sebastian
Nov 25 2002 14:16:01 Rob Matson
matsonr@saic.com
2002 Nov 24 (CONFIRMATION) -- Was just about to post this as

being missed due to weekend frame delays, but I see that Xavier
was on the ball and found it. Good job! The comet is actually
visible in at least 6 frames (0,0 in upper left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-24 09:30 437 1012
09:54 430 992
10:34 419 958
10:56 414 938
11:06 411 929
11:30 405 909

--Rob
Nov 25 2002 14:53:08 Rob Matson
matsonr@saic.com
2002 Nov 24 -- I believe I've found a non-group comet in real-time

C2 frames. It's a fast mover and unfortunately is only visible in
4 frames, maybe 5. 1024x1024 approximate coordinates (0,0 in upper
left):

YYYY-MM-DD HH:MM Col Row
---------- ----- --- ----
2002-11-24 10:56 1017 594
11:06 1002 599
11:30 968 613
11:54 931 625
12:06 914 629 ?

--Rob
Nov 25 2002 15:57:16 Rainer Kracht
R.Kracht@t-online.de
Rob's C2 non-group comet:

The first three images look very well,
if Derek accepts the fourth it will be
officially confirmed.
The apparent track is close to that of C/2002 Q9
and even the acceleration seems right.

Rainer
Nov 26 2002 05:18:10 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2


1024*1024
Date 20021126

time x,y
0754 973,949
0806 964,940
0830 961,940
0854 956,933


Regards,
Ciro


Nov 26 2002 06:11:50 Maik Meyer
maik@comethunter.de
Ciro,


without looking at the images I can say that this is noise. Why?
Just look at your coordinates and the times. This does not move
uniformly. Please, before posting a claim, check for consistent
speed in x and y!

Maik
Nov 26 2002 10:39:04 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
Date: Nov 26, 2002 


Brief description:
The Object...? The Possible comet in C3...
The object mark in three positions on picture from 11/26/2002 in interval 08:18 - 08:42 - 09:18.
0,0 in upper left corner
1024x1024

Time (x,y)
08:18 476,29
08:42 482,33
09:18 489,39


Regards,
Sergey Shurpakov
Nov 26 2002 13:56:41 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
My apologies. We ask my message to consider void...


Regards,Sergey
Nov 26 2002 14:58:12 Sergey Shurpakov Sergey Shurpakov
shurpakov@tut.by
26 Nov 2002

Possible comet in image C3...

Brief description:
The Object is sailled weakens in briliance.... The Mark it is enough
on 4 pictures well...
0,0 in upper left corner
1024x1024

Time (x,y)
15:18 591,799
16:18 590,796
16:42 589,797
17:18 588,800

Regards,Sergey Shurpakov
Nov 26 2002 15:04:13 Sebastian Hönig
Sebastian@sungrazer.org
Sergey,


your report is definitely no comet. The positions
you gave change direction in an erroneous way.
Please start comethunting with trying to locate
known comets to see _where_ comets can be seen,
_how_ they move and how the look like. You may
also use the tutorial that is offered.

Regards, Sebastian
Nov 26 2002 20:26:58 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Hello, I have two more confirmations and a pending claim...



SOHO# Reported By Date Camera
------------------------------------------
552 X.-M. Zhou 02/11/25 C2
553 X. Leprette 02/11/24 C2
554? R. Matson 02/11/24 C2 [PENDING]


Gregg, your claim was reasonable...meaning I did see the object
you were referring to. However, after taking my own positions, the
change in x is suspect, especially at the 23:18 image. Also, the
object you are referring to is very dim and, if you take another
look in its vicinity, you'll see there always exists at least 2-4
other blobs or smudges that look identical to it. This is
an immediate signal that you're looking too far into the noise.
Also, your y-coordinate seems to be consistently short by 4-5
pixels. Please fix this for future reports as it is very difficult
to ascertain the exact object you're claiming especially if it's
very faint. Overall, your claim is just background noise.


And for everyone, once again, do not post with <4 positions if the object
is not obvious. Please stop. Sergey and Ciro, please do not make
<4 posts until you are more comfortable with comet appearances in
LASCO. Dave, it's absurd to think that you could, with 1 or 2
images!!, possibly identify a comet in C3!!, with the black and
whites!!, with 1/2 resolution!!. Nobody is that good. A successful
claim would be nothing more than a guess. Guesses are not acceptable
with <4 image posts.



Derek
Nov 26 2002 20:37:51 Derek Hammer
derek@sungrazer.nascom.nasa.gov
Sorry, the SOHO#'s should read...


SOHO# Reported By Date Camera
-------------------------------------------
554 X.-M. Zhou 02/11/25 C2
555 X. Leprette 02/11/24 C2
556? R. Matson 02/11/24 C2 [PENDING]
Nov 27 2002 09:22:14 XingMing Zhou
zh_x_m@163.net
Possible Kreutz group comet in real-time C2 images.

It's faint,with a tail.
0,0 in upper left corner

Images Size X, Y

20021127_1031_c2.gif 512 x 512 180, 504
20021127_1054_c2.gif 512 x 512 173, 489

Regards, XingMing Zhou
Nov 27 2002 09:27:00 Sebastian Hönig
Sebastian@sungrazer.org
Xingming,


it looks like 2 cosmic ray streaks in 1024. Note
that the images are very noisy at this time.

Regards, Sebastian
Nov 27 2002 10:01:50 John Sachs
IMAGEPHOTO@BLAZENET.NET
  

Possible Sungrazer in C3 images
Positions: (0,0) upper left, 1024x1024
Date:11272002
Time 00:42 (x,y)
20021127 0942 C3 571 835
More positions soon.
John
Nov 27 2002 10:07:30 John Sachs
imagephoto@blazenet.net
Possible Sungrazer in  C3 images 

Positions: (0,0) upper left, 1024x1024
Date:11272002
Time 00:42 (x,y)
20021127 0942 C3 570 832
More positions soon.
John
Nov 27 2002 10:10:03 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C3 images


Date: Nov 27, 2002

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

Time (x,y)
09:42 576,848
10:42 573,838
11:18 571,834
11:42 569,831

This is somewhat off from John's position

Sebastian Hönig
Nov 27 2002 10:11:22 John Sachs
imagephoto@blazenet.net
Possible Sungrazer in  C3 images 

Positions: (0,0) upper left, 1024x1024
Date:11272002
Time 00:42 (x,y)
20021127 1142 C3 570 832
More positions soon.
Sorry My post were not correct below
This one is
John
Nov 27 2002 10:19:56 Scamato Toni
toniscarmato@libero.it
New comet in C3 starting at positiobn


20021127

1042 573,840

other posistoon at next post


Toni Scarmato
Nov 27 2002 10:20:13 John Sachs
imagephoto@blazentet.net

Possible New Kreutz comet C3
0,0 Top Left x and y Coordinates
C3 1024x1024 Images x and y Coordinates
20021127 1142 C3 569 832
20021127 1118 C3 571 834
20021127 1042 C3 573 839
20021127 1020 C3 575 843
My time was off on my first reports.
Sorry for so many posts :)
Thanks
John
Nov 27 2002 10:21:59 Scarmato Toni
toniscarmato@libero.it
Update


20021127

1042 573,840
1118 571,834
1142 570,831

1024x1024 0,0 top-left

Bright comet


Toni Scarmato
Nov 28 2002 08:47:23
 
Nov 28 2002 19:50:50 XingMing Zhou
zh_x_m@163.net
Possible Kreutz group comet in real-time C2 images.

It's faint,with a short tail.
0,0 in upper left corner

Images Size X, Y

20021128_0054_c2.gif 512 x 512 170, 449
20021128_0131_c2.gif 512 x 512 168, 433
20021128_0154_c2.gif 512 x 512 167, 424
20021128_0206_c2.gif 512 x 512 167, 419
20021128_0230_c2.gif 512 x 512 165, 408

Regards, XingMing Zhou
Nov 29 2002 03:25:54 Maik Meyer
maik@comethunter.de
Confirmation of XimgMing's Kreutz comet. Should be visible as a

nice object in C2 when the delayed images are available.

Maik
Nov 29 2002 06:23:18 Raymund John Ang
rjyang@eudoramail.com
LASCO C3

Nov. 28, 2002
1024x1024, (0,0) upper-left

0942 499,643
1020 497,637
1042 496,633
1118 495,627

(Not sure if this has already been discovered.)

Raymund
Nov 29 2002 06:43:19 Maik Meyer
maik@comethunter.de
Raymund,


it has been discovered by John Sachs and Sebastian Hoenig on Nov. 27.
It is easy to see this by looking at their reports.

Maik
Nov 29 2002 08:02:41 fusco ciro
ce101460@guest.tlsoft.it
Possible comet in C2 1024*1024


DATE 20021128
(0,0 top-left)

time x,y

1054 805,1010
1106 804,1007
...
...
aspect other images for the confirmation.
Regards,
Ciro
Nov 29 2002 08:14:52 Maik Meyer
maik@comethunter.de
Ciro,


why do you post this? This is noise. Don't you have read Derek's
advise?

"Sergey and Ciro, please do not make <4 posts until you are more
comfortable with comet appearances in LASCO."

Maik


Nov 29 2002 10:33:02 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C2 images


Date: Nov 28, 2002

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

Time (x,y)
16:54 180,510
17:06 179,504
17:30

More positions soon.

Sebastian Hönig
Nov 29 2002 10:35:51 Sebastian Hönig
Sebastian@sungrazer.org
New sungrazer in LASCO C2 images

(update of previous report)

Date: Nov 28, 2002

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

Time (x,y)
16:54 180,510
17:06 179,504
17:30 177,494
18:06 174,489

Sebastian Hönig
Nov 29 2002 11:17:18 Sebastian Hönig
Sebastian@sungrazer.org
Another new sungrazer in LASCO C2 images


Date: Nov 29, 2002

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

Time (x,y)
04:54 90,502
05:06 90,495
05:30 90,485

More positions soon.

Sebastian Hönig
Nov 29 2002 11:19:08 Sebastian Hönig
Sebastian@sungrazer.org
Another new sungrazer in LASCO C2 images


Date: Nov 29, 2002

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

Time (x,y)
04:54 90,502
05:06 90,495
05:30 90,485
05:54 90,474


Sebastian Hönig
Nov 29 2002 11:20:04 Maik Meyer
maik@comethunter.de
Confirmation of Sebastian's 2 Kreutz comets! Congrats!


Maik
Nov 29 2002 11:23:24 Sebastian Hönig
Sebastian@sungrazer.org
A 3rd new sungrazer in LASCO C2 images


Date: Nov 29, 2002

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

Time (x,y)
06:54 192,508
07:31 188,492
07:54 184,484

More positions soon.

Sebastian Hönig
Nov 29 2002 11:24:18 Sebastian Hönig
Sebastian@sungrazer.org
A 3rd new sungrazer in LASCO C2 images

update
Date: Nov 29, 2002

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

Time (x,y)
06:54 192,508
07:31 188,492
07:54 185,484
08:06 184,478

Sebastian Hönig
Nov 29 2002 11:56:39 Maik Meyer
maik@comethunter.de
Confirmation of the 3rd Kreutz comet found by Sebastian! Very

impressive.

Maik
Nov 29 2002 12:05:02 Sebastian Hönig
Sebastian@sungrazer.org
Three sungrazers found in images of Nov 28 - 29

(Update and overview of all the reports)

Maik, thanks for the confirmations. Here is an overview
of all the reports so you can check if your suspect object has
already been reported.

All positions: (0,0) upper left, 512 x 512

Nov 28:
Time (x,y)
16:54 180,509
17:06 179,504
17:30 177,494
18:06 174,479
18:54 170,458

Nov 29:
Time (x,y) Time (x,y)
04:54 90,502 06:54 192,508
05:06 90,496 07:31 188,492
05:30 90,485 07:54 186,483
05:54 90,474 08:06 185,478
08:30 183,468

Regards, Sebastian Hönig
Nov 29 2002 12:38:47 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 6 images
on 2002/11/29 from 01:54 to 03:30

Origin : top-left corner of 1024x1024 frames

col, row
01:54 255,988
02:06 252,980

Xavier Leprette
Nov 29 2002 12:47:20 Xavier Leprette
xavier.leprette@wanadoo.fr
A possible sungrazer comet in a real-time C2 images now.


UPDATE :
The object is faint, and it is visible in 6 images
on 2002/11/29 from 01:54 to 03:30

Origin : top-left corner of 1024x1024 frames

col, row
01:54 255,988
02:06 252,980
02:30 250,962
02:54 248,942
03:06 246,934
03:30 244,915

Xavier Leprette
Nov 29 2002 12:52:40 David Evans
dave.nokia3330@orange.net
Possible faint C2 object following a Kreutz path

in recent images.

1024x1024 o,o Top-Left

2002/11/29

01:54 253, 987
02:06 252, 978
02:30 250, 960
02:54 247, 941
03:06 246, 933
03:30 244, 914

- Dave
Nov 29 2002 12:56:45 David Evans
dave.nokia3330@orange.net
Congrats Xavier!


- Dave
Nov 29 2002 13:41:05 Xavier Leprette
xavier.leprette@wanadoo.fr
Well done Sebastian for your three daily comets. 

Thanks Dave.

Xavier
Nov 30 2002 13:40:35 Paolo Laquale
paololaq@tin.it
Possible Kreutz comet in LASCO C2 image now (B/W image)

512X512 0,0 upper left
x,y
02/11/30_18:06 216,407

The comet is very evident with long tail and follow the
Kreutz path for this time of the year.
This is the reason for post only one image.
I attend other images for confirmaton.

Regards Paolo Laquale
Nov 30 2002 13:46:30 Paolo Laquale
paololaq@tin.it
Sorry, not consider my last post !

Noise only noise!

Regards Paolo Laquale
Nov 30 2002 14:19:52 Robert Otto
robert.otto@mindspring.com
Possible object in C2 Images


11/30/2002 C2 1024x1024 (0,0 Bottom Left)

X Y Date Time
603 130 20021130 0606
609 145 20021130 0630
611 159 20021130 0654
628 187 20021130 0731

-Robert Otto

Nov 30 2002 14:45:36 Sebastian Hönig
Sebastian@sungrazer.org
Robert,


your object can be identified as a random alignment of cosmic ray
hits. Reasons:
(1) It changes shape and brightness unphysically (i.e. unpredictable)
(2) It is not visible in previous or following images although
it should with that brightness characteristics
(3) The x-movement doesn't correspond to the time steps

Another hint is that it is not on the track of one of the known
groups. For beginners it is best to first search only for Kreutz
comets (see http://www.ph.u-net.com/comets/c2paths.htm)

Regards, Sebastian