SOHO-LASCO Comet Reports for November, 2000.

Nov 2 2000 14:53:06 Doug Biesecker doug@sungrazer.nascom.nasa.gov
Announcing a new scheme by which to report comets.

Comments welcome to doug@sungrazer.nascom.nasa.gov
Nov 3 2000 19:52:25 Xavier Leprette
xavier.leprette@education.gouv.fr
Hi Doug,


Possible archival sungrazer in C2 frames from 8 october 1997

The object is fairly faint but it is obvious. It's looks like a round and fuzzy blob without tail.
It is visible in 5 consecutives images;

Positions measured from the bottom-left corner of the1024x1024 frames are :

Ref. image, X, Y, Time , Date
22021734.fts 974 55 08:02:05.511 08 october 1997
22021735.fts 948 79 08:28:05.896 08 october 1997
22021736.fts 916 106 09:01:06.177 08 october 1997
22021737.fts 888 130 09:28:05.562 08 october 1997
22021738.fts 863 169 09:53:06.647 08 october 1997


Doug, I am not sure that it is a new comet because Soho33 is very close in the time. But the comet page web
(comets_table_1997.html) give : 1997 Oct. 7.99 for the perihely of this comet.
So my object comes in the C2 field eight hours after Soho33 ! Is it an error on the Web page or am I right ?

Regards

Xavier Leprette
Nov 4 2000 6:12:48 Michael Oates
mike@ph.u-net.com
Doug,


I also found the Comet that Xavier Leprette just reported also
of the same date, but I was a little too late reporting it :)

Archive sungrazer in C2 images from 8 October 1997

This is fairly faint with a tail and can be seen in 3/4 frames.

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

Image X Y Time Date
22021751.fts edge 17:07:35.296 8 Oct 1997
22021752.fts 921 59 17:47:20.974 8 Oct 1997
22021753.fts 900 78 18:07:41.461 8 Oct 1997
22021754.fts 889 89 18:20:46.154 8 Oct 1997


Regards

Michael Oates
Nov 4 2000 6:51:12 Michael Oates
mike@ph.u-net.com
Possible archive sungrazer in C2 images from 11 October 1997


This can only be seen in one frame as the frames before and after it are cropped versions. I am currently downloading the C3 images to see if it's visible there, but I don't hold out much hope. This image is faint diffuse and looks like a tail.

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

Image X Y Time Date
22021894.fts 893 119 10:28:05.429 11 Oct 1997

Regards

Michael Oates
Nov 4 2000 7:17:13 michael boschat
mboschat@ns.sympatico.ca
Date: November 04, 2000


Time: 20001104_0842 to 1142 UT

Telescope: C3

Brief description of comet:

point heading towrads sun
Nov 4 2000 7:56:01 michael boschat
mboschat@ns.sympatico.ca
Position:


Here are the (approximate) XY coordinates of the comet
Please note this was a very hard one on to see on the 512 images
and it goes into the middle streamer the coordinates below
are from me using a magnifying glass and well, they could be off
a bit..but it is well seen on 1024 size.

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates (approximate)
---------------------------------------------------------
20001104_0842.gif 512 x 512 308, 303
20001104_0942.gif 512 x 512 307, 300
20001104_1042.gif 512 x 512 304, 297
20001104_1118.gif 512 x 512 299, 293
20001104_1142.gif 512 x 512 296, 292


( sun )

x rough area of object
x rough area of object

Nov 4 2000 8:30:51 michael boschat
mboschat@ns.sympatico.ca
 I think I should have said in the first post;


Comet in C3 at 20001104_0842 to 1142 UT

then added my name at the end of the form! Sorry! getting
use to the form and posting better in future...


Clear skies

Mike Boschat
Nov 4 2000 11:12:25 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 17 October 1997


This is average brightness with a tail and can be seen
in 6 frames.

All positions with 0,0 at bottom left of images.

Image X Y Size Time Date
22022200.fts 879 2 1024x1024 04:20:05.464 17 Oct 1997
22022201.fts 431 9 512x512 04:40:05.453 17 Oct 1997
22022202.fts * 512x512 04:46:16.649 17 Oct 1997
22022203.fts * 512x512 04:59:46.441 17 Oct 1997
22022204.fts 815 67 1024x1024 05:35:08.121 17 Oct 1997
22022205.fts 770 114 1024x1024 06:26:05.892 17 Oct 1997

* 2 images have been shifted not even the stars line up!
so not possible to get positions

I have noticed on the report page that if you don't include
line feeds in the text, it all goes on one line, sorry about
that.

Michael Oates
Nov 4 2000 12:48:14 James Danaher
danaher@sprynet.com
There is a comet in c3 at the following positions (based on

upper left 0,0):
11/04/00 09:42 610,679
11/04/00 16:18 563,613
and every frame between those.

Is this the same as the report by Michael Boschat?
Nov 4 2000 12:53:40 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 20 October 1997


This is faint, round with no tail, and can be seen in 8 frames.

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

Image X Y Time Date
22022341.fts 909 10 05:34:40.320 20 Oct 1997
22022342.fts 898 20 05:49:32.712 20 Oct 1997
22022343.fts 879 40 06:12:35.698 20 Oct 1997
22022344.fts 866 53 06:27:27.189 20 Oct 1997
22022345.fts 847 73 06:50:34.676 20 Oct 1997
22022346.fts 834 85 07:05:57.468 20 Oct 1997
22022347.fts 814 106 07:29:04.954 20 Oct 1997
22022348.fts 802 119 07:43:57.845 20 Oct 1997

Michael Oates
Nov 4 2000 14:24:53 Jim Danaher
danaher@sprynet.com
Bright comet entering c2 now

11/4/00 18:06 652.1013
11/4/00 18:26 640,996
based on 1024x1024 upper left 0,0
Nov 4 2000 15:11:51 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 21/22 October 1997


This is faint, round with no tail, and can be seen in 8 frames.

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

Image X Y Time Date
22022502.fts 831 14 22:29:53.196 21 Oct 1997
22022503.fts 813 33 22:52:55.583 21 Oct 1997
22022504.fts 802 46 23:07:46.174 21 Oct 1997
22022505.fts 784 66 23:30:47.861 21 Oct 1997
22022506.fts 772 79 23:45:39.552 21 Oct 1997
22022507.fts 753 100 00:08:41.639 22 Oct 1997
22022508.fts 741 113 00:23:37.230 22 Oct 1997
22022509.fts 722 134 00:46:38.117 22 Oct 1997

Michael Oates
Nov 5 2000 15:43:02 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 26 October 1997


This can be seen in 7/8 frames. And it looks like it may be
2 comets, a smaller one just behind the other but offset
slightly. The second possible comet is rather faint and
difficult to measure.

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

Main Minor
Image X Y X Y Time Date
22023357.fts 771 6 777 1 20:41:09.188 26 Oct 1997
22023358.fts 760 20 ? ? 20:55:58.580 26 Oct 1997
22023359.fts 744 40 749 35 21:19:04.267 26 Oct 1997
22023360.fts 731 55 737 50 21:33:54.558 26 Oct 1997
22023361.fts 714 76 718 72 21:56:55.145 26 Oct 1997
22023362.fts 703 90 ? ? 22:11:50.936 26 Oct 1997
22023363.fts 684 113 ? ? 22:34:51.522 26 Oct 1997
22023364.fts *676 126 ? ? 22:49:47.216 26 Oct 1997
*(last position is uncertain)

Michael Oates
Nov 6 2000 2:46:36 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 27 October 1997


This is fairly faint, diffuse, with a slight tail, and can be
seen in 3/4 frames. There are 4 images missing which I can't trace :(

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

Image X Y Time Date
22023557.fts 802 17 16:09:13.011 27 Oct 1997
22023558.fts 787 35 16:28:23.500 27 Oct 1997
.
.
.
.
22023563.fts 741 88 17:30:10.464 27 Oct 1997
22023564.fts 714 141 18:57:16.313 27 Oct 1997
(last position uncertain, most likely not the comet)

Michael Oates
Nov 6 2000 8:03:33 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
Real-time comet from Sunday, Nov 5!


Much fainter than the real-time comet from Nov 4. I've seen this
one in C2, haven't checked C3 yet. No tail evident.

2000/11/05 15:26:08 C2 476.00 17.00
2000/11/05 15:50:05 C2 465.00 41.00
2000/11/05 16:06:05 C2 457.00 56.00
2000/11/05 16:26:05 C2 449.00 75.00


I've got a lot of reports to check up on.

Doug
Nov 6 2000 12:07:35 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
I've confirmed most of the reports from the past 3 days.

The report to two comets on October 26, 1997 still needs
to be confirmed. Here's a summary of the reports.

All times are approximate. All SOHO numbering is preliminary.

SOHO Number Date Time Tel. Discoverer
219 1997/10/08 0828-0953 C2 X. Leprette
220 1997/10/08 1747-1820 C2 M. Oates
221 2000/11/04 1118-2050 C2,C3 M. Boschat
222 1997/10/17 0420-0626 C2 M. Oates
223 1997/10/20 0534-0729 C2 M. Oates
224 1997/10/21-22 2252-0008 C2 M. Oates
225 1997/10/26 2041-2211 C2 M. Oates
226 1997/10/26 2041-2133 C2 M. Oates (to be confirmed)
227 1997/10/27 1609-1704 C2 M. Oates
228 2000/11/05 1526-1626 C2 D. Biesecker

Doug
Nov 6 2000 12:20:02 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov

Seems to be a small bug in the posting form. Occasionally, a
post ends up with the correct time stamp but at the bottom of
the page. See the current example. We'll try to work this one
out.
Nov 6 2000 14:24:34 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
A bug in the posting form has been fixed.  Occasionally, a

post ended up with the correct time stamp but at the bottom of
the page. See the bottom of the page for my report on all
of the comets reported this weekend.

Doug
Nov 6 2000 16:12:51 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 1 November 1997


This is very faint, hardly any condensation, it's all tail!, and
is visible in 5 frames. It is very difficult to get positions
for this. I have put positions for the first 3 images, and I can
see the comet in the other two images if I animate them.

Also it is much further over to the left than I would expect for
a Kreutz sungrazer.

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

Image X Y Time Date
22023819.fts 451 9 22:06:05.382 01 Nov 1997
22023820.fts 443 27 22:21:05.374 01 Nov 1997
22023821.fts 435 45 22:41:05.765 01 Nov 1997
22023822.fts ? 23:16:06.241 01 Nov 1997
22023823.fts ? 23:31:05.833 01 Nov 1997

Regards

Michael Oates
Nov 6 2000 17:33:37 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 3 November 1997


This is very similar to the comet of 1 Nov 97, it is faint,
hardly any condensation and plenty of tail, and is visible
in 6 frames. It is also in the correct position for a
Kreutz sungrazer. A little easier to measure as well.

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

Image X Y Time Date
22023912.fts 682 22 14:26:09.087 03 Nov 1997
22023913.fts 664 46 14:55:05.870 03 Nov 1997
22023914.fts 640 80 15:28:05.451 03 Nov 1997
22023915.fts 627 97 15:50:05.538 03 Nov 1997
22023916.fts 617 114 16:09:19.527 03 Nov 1997
22023917.fts 601 140 16:36:05.412 03 Nov 1997

Michael Oates
Nov 7 2000 5:43:23 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 8 November 1997


This is small and condensed, with a slight tail to start
with, and can be seen in 10 frames.

It must have been snowing when SOHO took these images :)

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

Image X Y Time Date
22024233.fts 378 4 13:31:47.969 8 Nov 1997
22024234.fts 372 21 13:47:47.060 8 Nov 1997
22024235.fts 367 37 14:03:40.851 8 Nov 1997
22024236.fts 361 53 14:19:51.441 8 Nov 1997
22024237.fts 355 70 14:35:49.532 8 Nov 1997
22024238.fts 350 87 14:51:42.323 8 Nov 1997
22024239.fts 345 105 15:07:43.014 8 Nov 1997
22024240.fts 340 121 15:23:35.113 8 Nov 1997
22024241.fts 335 139 15:39:27.696 8 Nov 1997
22024242.fts 330 156 15:55:18.386 8 Nov 1997

Michael Oates
Nov 7 2000 5:58:08 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 8 November 1997

(Another one)

This is very faint, with a slight tail to start with,
and can be seen in at least 7 frames.

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

Image X Y Time Date
22024258.fts 586 2 20:49:39.217 8 Nov 1997
22024259.fts 578 15 21:05:12.708 8 Nov 1997
22024260.fts 570 28 21:21:00.299 8 Nov 1997
22024261.fts 562 42 21:36:49.589 8 Nov 1997
22024262.fts 554 58 21:52:36.180 8 Nov 1997
22024263.fts 547 70 22:08:18.871 8 Nov 1997
22024264.fts 537 85 22:24:11.562 8 Nov 1997

Michael Oates
Nov 7 2000 12:11:33 Xavier Leprette
xavier.leprette@education.gouv.fr
Possible archive comet sungrazer in C2 images from 24 november 1997


The suspect object is faintly bright without obvious tail. It is round and
it is visible in 4 consecutive C2 frames at least.

Positions with 0,0 at bottom left in 1024x1024 images :

Images X Y time date
22025201.fts 380 23 18:36:18.788 24 november 1997
22025202.fts 370 66 19:27:34.058 24 november 1997
22025208.fts 352 141 20:55:08.607 24 november 1997
22025209.fts 346 169 21:27:06.389 24 november 1997

Unfortunately the image 22025203 is very noisy and I can't see the object in 512 images.

Xavier Leprette
Nov 8 2000 15:44:38 Xavier Leprette
xavier.leprette@education.gouv.fr
Two archive comets sungrazer in C2 images from 03 december 1997


The two suspect objects are faint, fuzzy but obvious with a short tail.
Both are visible in 4 consecutive C2 frames. The second one following the first one.

The first comet is visible from 0:27 to 1:55 UT (images 22025471.fts to 22025474.fts)

The second comet is visible from 2:55 to 3:55 UT (images 220254479.fts to 220254482.fts)

Positions in a next message.

Xavier Leprette

Nov 8 2000 18:01:43 Xavier Leprette
xavier.leprette@education.gouv.fr
More information about the archive comets sungrazer in C2 images from 03 december 1997


The two suspect objects are faint, fuzzy but obvious with a short tail.
They are visible in 11 and 9 consecutive C2 frames. The second one following the first one.

Positions with 0,0 at bottom left in 1024x1024 or 512 images :

First comet

Images X Y format time date
22025471.fts 260 26 1024 00:27:07.404 03 december 1997
22025472.fts 258 51 1024 00:55:05.488 03 december 1997
22025473.fts 256 77 1024 01:27:06.470 03 december 1997
22025474.fts 255 100 1024 01:55:05.455 03 december 1997

22025475.fts 127 62 512 02:23:05.838 03 december 1997
22025476.fts 127 63 512 02:25:36.637 03 december 1997
22025477.fts 127 64 512 02:29:23.435 03 december 1997
22025478.fts 127 67 512 02:33:09.033 03 december 1997

22025479.fts 253 153 1024 02:55:08.621 03 december 1997
22025480.fts 253 166 1024 03:08:05.413 03 december 1997
22025481.fts 254 ? 180 1024 03:27:05:602 03 december 1997

Nota bene : a possible second fragment in :

22025472.fts 297 57 1024 00:55:05.488 03 december 1997
22025473.fts 292 82 1024 01:27:06.470 03 december 1997


Second comet

Images X Y format time date
22025474.fts 256 23 1024 01:55:05.455 03 december 1997

22025475.fts 127 23 512 02:23:05.838 03 december 1997
22025476.fts 126 24 512 02:25:36.637 03 december 1997
22025477.fts 126 26 512 02:29:23.435 03 december 1997
22025478.fts 126 27 512 02:33:09.033 03 december 1997


22025479.fts 253 73 1024 02:55:08.621 03 december 1997
22025480.fts 252 84 1024 03:08:05.413 03 december 1997
22025481.fts 251 101 1024 03:27:05:602 03 december 1997
22025482.fts 251 125 1024 03:55:05.386 03 december 1997


Xavier Leprette





Nov 8 2000 20:08:52 Michael Oates
mike@ph.u-net.com
Possible real time sungrazer in C2


But, and this is big BUT, if this is a comet, we may never know,
just as the object was on 2 frames there was a massive CME
which caused the detector to get almost saturated with noise.

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

Image X Y
20001108_2306_c2.gif 784 12
20001108_2326_c2.gif 780 19
20001108_2350_c2.gif 773 30 ?
20001109_0006_c2.gif ? ?

The 3rd position may not be accurate, I may just be measuring
noise.

Michael Oates
Nov 8 2000 20:27:11 michael boschat
mboschat@ns.sympatico.ca
The real time comet in C2 reported by Mike I can't see

but teh times it was reported threw me off, I thought
it was an old time since looking at the form note the
times from the bottom to the top for today, they go;

Nov 8 2000 15:44:38
Nov 8 2000 20:08:52
Nov 8 2000 18:01:43

Should they not be in order like 15, 18, 20?

========
Clear skies

Michael Boschat
Nov 8 2000 22:39:24 michael boschat
mboschat@ns.sympatico.ca
Confirming Mike Oates possible comet in C2 images at

20001108_2306 to 2350 UT. $th image not possible because of
CME.

Date: November 08, 2000

Time: 20001108_2306 to 2350 UT

Telescope: C2


Approximate XY Positions of comet.

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

0,0 in upper left corner

LASCO C2 IMAGES

Date & UT Size X and Y
of Images used Coordinates
-------------------------------------------
20001108_2306.gif 512 x 512 394,475
20001108_2326.gif 512 x 512 390,472
20001108_2350.gif 512 x 512 387,466

=============
Clear skies

Michael Boschat
Nov 10 2000 14:36:53 Xavier Leprette
xavier.leprette@education.gouv.fr
Hi Doug,


Possible archival sungrazer in C2 frames from 6 december 1997

The object is fairly faint, fuzzy with a short tail.
It is visible in 6 consecutives images.
Instrument : C2

Positions measured from the bottom-left corner
of the1024x1024 frames are :

Ref. image, X, Y, Time , Date
22025654.fts 227 26 08:55:05.505 06 december 1997
22025655.fts 227 57 09:27:05.386 06 december 1997
22025656.fts 228 76 09:55:05.470 06 december 1997
22025657.fts 228 104 10:27:05.552 06 december 1997
22025658.fts 229 128 10:55:05.436 06 december 1997
22025659.fts 230 157 11:27:05.418 06 december 1997


Regards

Xavier Leprette
Nov 11 2000 3:28:51 Michael Oates
mike@ph.u-net.com
Real time comet just entered C2 at bottom


It has a tail

20001111_0650_c2.gif
X = 571
Y = 28
Nov 11 2000 5:57:56 michael boschat
mboschat@ns.sympatico.ca
Sungrazer in C3 images - 20001111_0142 to 0842 UT


Date: November 11, 2000

Time: 20001111_0142 to 0842 UT

Telescope: C3

Coordinates next post.

Brief description of comet:

Faint but just visible to lower right of occultating
disk.

=============
Clear skies

Michael Boschat
Nov 11 2000 6:05:17 michael boschat
mboschat@ns.sympatico.ca
Approximate XY Positions of comet.


Here are the (approximate) XY coordinates of the comet

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates (approximate)
---------------------------------------------------------
20001111_0142.gif 512 x 512 282,291
20001111_0218.gif 512 x 512 280,289
20001111_0242.gif 512 x 512 279,286
20001111_0321.gif 512 x 512 277,283

----------------
Clear skies

Michael Boschat
Nov 11 2000 6:28:07 michael boschat
mboschat@ns.sympatico.ca
My 2nd attempt at sending the XY coordinates!


Approximate XY Positions of comet.

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

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates (approximate)
---------------------------------------------------------
20001111_0142.gif 512 x 512 282,291
20001111_0218.gif 512 x 512 280,289
20001111_0242.gif 512 x 512 279,286
20001111_0321.gif 512 x 512 277,283

Clear skies
=========================================
Michael Boschat
Nov 11 2000 22:41:24 michael boschat
mboschat@ns.sympatico.ca
Possible sungrazer in C3 images - 20001112_0018 UT


Date: November 12, 2000

Time: 20001112_0018 UT

Telescope: C3

Brief description of comet:

Fairly faint,diffuse,
about 2 1/8 occultation disks to mid center.


Very approximate XY Positions of comet.
Difficult to determine accurate XY's
in 512 size.

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

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20001112_0018.gif 512 x 512 315,337
20001112_0042.gif 512 x 512 314,335
20001112_0142.gif 512 x 512 314,333
20001112_0218.gif 512 x 512 313,330



=============
Clear skies

Michael Boschat
Nov 12 2000 16:02:53 michael boschat
mboschat@ns.sympatico.ca
Possible sungrazer in C3 images - 20001112_1818 to 2018 UT


Date: November 12, 2000

Time: 20001112_1818 to 2018 UT

Telescope: C3

Coordinates next post.

Brief description of comet:

Something passing to the noon position of a star and
to the right of a "noise" by end the mass ejection.

0 - noise N
x - object |_E

* - star

=============
Clear skies

Michael Boschat
Nov 12 2000 16:19:50 michael boschat
mboschat@ns.sympatico.ca
DISREGARD LAST POST ----- CLICKED SUMIT

BUTTON BY ERROR !!!

NO COMET!!! NO COMET !!

SORRY!!!

----------------
Clear skies

Michael Boschat
Nov 13 2000 0:02:14 Jim Danaher
danaher@sprynet.com
There is a possible sungrazer currently in c3. It is very dim.

Based on 1024x1024 upper left 0,0.
11/12/2000 21:18 x=559 y=699
11/12/2000 21:42 x=554 y=690
11/12/2000 22:18 x=547 y=676

Jim Danaher
danaher@sprynet.com
Nov 13 2000 3:12:26 Maik Meyer
maik@comethunter.de
Can't confirm James' object. According to the coordinates the

movement is also not uniform (delta x= 5 and 7, delta y= 9
and 14 pixel). Guess it is just noise.

Maik
Nov 13 2000 6:57:13 michael boschat
mboschat@ns.sympatico.ca
Anyone see this "fake" comet in C2? 

Bet on 2 images all the hearts jumped!
Mine did!

Date: November 13, 2000

Time: 20001113_0850-0906 UT

Telescope: C2

Coordinates next post.
UT Images used X & Y
20001113_0850.gif 512 x 512 341,290
20001113_0906.gif 512 x 512 353,303

=============
Clear skies

Michael Boschat
Nov 13 2000 8:30:10 michael boschat
mboschat@ns.sympatico.ca

A PROBLEM WITH MY POSTINGS ----!!

I just noticed the fake comet I posted
earlier is on teh form 3 times! I only hit
SUBMIT button once to send.

I am sorry about this but I also noticed
another post is on their 3 times!

Mabey Doug can figure this out since so far
my posts are triple... I will hit the SUBMIT
button once on this but it will probally be
put 3 times..

Sorry.

Mike
Nov 14 2000 2:30:24 Xavier Leprette
xavier.leprette@education.gouv.fr

Possible archival sungrazer in C2 frames from 10 december 1997

The object is a fairly bright blob, rounded, with a short tail
on the first image.
It is visible in 5 consecutives images.
Instrument : C2

Positions measured from the bottom-left corner
of the1024x1024 frames are :

Ref. image, X, Y, Time , Date
22025845.fts 118 74 09:27:05.790 10 december 1997
22025846.fts 121 96 09:55:05.797 10 december 1997
22025847.fts 125 121 10:27:05.455 10 december 1997
22025848.fts 134 169 11:27:05.420 10 december 1997
22025849.fts 139 193 11:55:05.405 10 december 1997

Xavier Leprette
Nov 14 2000 5:48:19 michael boschat
mboschat@ns.sympatico.ca
Possible sungrazer in C3 images - 20001114_0318 UT


Date: November 14, 2000

Time: 20001114_0318 t 0418 UT

Telescope: C3

Coordinates next post.

Brief description of comet:

A really faint object starts to
left of star below occultating disk
then heads towards Sun but at slight
angle. No images after 0418 UT till
0918 UT.
( ) - disk

star -. x - object

Michael Boschat
Nov 14 2000 6:10:09 michael boschat
mboschat@ns.sympatico.ca
Approximate XY Positions of comet.


Here are the (approximate) XY coordinates of the comet

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20001114_0318.gif 512 x 512 303, 274
20001114_0342.gif 512 x 512 305, 270
20001114_0418.gif 512 x 512 305, 267
20001114_0442.gif 512 x 512 304, 266

Bright star for reference ===== 289,310
at 5pm position below disk.
----------------
Michael Boschat
Nov 14 2000 7:21:04 Maik Meyer
maik@comethunter.de
Can't confirm Michael Boschat's object. I really don't see 

anything at all at the indicated position (using both the
coordinates and the sketch) using the 1024 x 1024 images on a
hi-end monitor.

Maik
Nov 14 2000 19:34:27 michael boschat
mboschat@ns.sympatico.ca
Possible sungrazer in C3 images - 20001114_2048 UT


Date: November 14, 2000

Time: 20001114_2048 to 2218 UT

Telescope: C3

Coordinates next post.


Michael Boschat
Nov 14 2000 19:44:51 michael boschat
mboschat@ns.sympatico.ca
Approximate XY Positions of comet.


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

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20001114_2048.gif 512 x 512 323, 308
20001114_2118.gif 512 x 512 323, 306
20001114_2142.gif 512 x 512 323, 304
20001114_2218.gif 512 x 512 321, 301

It is below the bright star at 321, 281
and starts near the fainter star at 321, 310

* bright star


.x two faint stars
. below bright one

----------------
Michael Boschat
Nov 15 2000 18:42:00 Michael Oates
mike@ph.u-net.com
Possible archive sungrazer in C2 images from 1 December 1998


This is quite faint but is clearly seen as a comet in the
first 2 images with a tail, but then it gets rather fainter
in the last frame. By animating the frames I can see it in
3 frames. Last position only approx.

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

Image X Y Time Date
22038422.fts 299 5 13:32:05.202 01 Dec 1998
22038423.fts 296 24 13:54:06.889 01 Dec 1998
22038424.fts 292 54 14:30:05.468 01 Dec 1998

Michael Oates
Nov 15 2000 18:44:29 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 5 December 1998


This is a decent comet with a tail. Visible in 6 images.

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

Image X Y Time Date
22038655.fts 241 3 12:54:05.590 05 Dec 1998
22038656.fts 239 31 13:32:03.069 05 Dec 1998
22038657.fts 238 48 13:54:05.561 05 Dec 1998
22038658.fts 237 78 14:30:05.539 05 Dec 1998
22038663.fts 235 125 15:30:08.705 05 Dec 1998
22038664.fts 235 143 15:54:05.592 05 Dec 1998

Michael Oates
Nov 15 2000 19:09:16 Michael Oates
mike@ph.u-net.com
Possible archive sungrazer in C2 images from 5 December 1998


This is faint with no tail. Two good positions with a
slightly uncertain 3rd.

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

Image X Y Time Date
22038629.fts 232 18 02:30:06.430 05 Dec 1998
22038634.fts 230 68 03:30:14.597 05 Dec 1998
22038635.fts 231 118 04:30:05.464 05 Dec 1998

Michael Oates
Nov 16 2000 4:20:48 Xavier Leprette
xavier.leprette@education.gouv.fr
Three archival sungrazer in C2 frames from 20,21,22 december 1997


All comets are visible in the C2 instrument. Maybe the first
and the second are also visible in C3.

First comet :
Small and bright coma, condensed, with a long and thin tail (very nice).
The comet is visible in 3 consecutives images.

Positions measured from the bottom-left corner
of the1024x1024 frames are :

Ref. image, X, Y, Time , Date
22026179.fts 49 123 21:19:46.632 20 december 1997
22026180.fts 69 170 22:13:05.732 20 december 1997
22026181.fts 100 235 23:28:19.088 20 december 1997


Second comet :
Bright coma, condensed, with a short tail.
The comet is visible in 10 consecutives images.

Positions measured from the bottom-left corner
of the1024x1024 frames are :

Ref. image, X, Y, Time , Date
22026200.fts 5 35 08:04:19.887 21 december 1997
22026201.fts 14 108 08:35:47.969 21 december 1997
22026202.fts 23 130 09:04:39.352 21 december 1997
22026203.fts 36 158 09:41:50.931 21 december 1997
22026204.fts 47 180 10:10:15.914 21 december 1997
22026205.fts 59 205 10:41:39.296 21 december 1997
22026206.fts 70 228 11:09:02.581 21 december 1997
22026207.fts 88 260 11:48:26.658 21 december 1997
22026208.fts 102 285 12:17:18.933 21 december 1997
22026209.fts 118 313 12:48:33.923 21 december 1997


Third comet :
Small comet, quite bright with a very short tail.
The comet is visible in 10 consecutives images.

Positions measured from the bottom-left corner
of the1024x1024 frames are :

Ref. image, X, Y, Time , Date
22026284.fts 3 125 21:03:34.409 22 december 1997
22026285.fts 10 138 21:21:48.899 22 december 1997
22026286.fts 17 152 21:40:02.388 22 december 1997
22026287.fts 24 166 21:58:14.078 22 december 1997
22026288.fts 31 180 22:16:24.467 22 december 1997
22026289.fts 39 195 22:34:37.356 22 december 1997
22026290.fts 46 209 22:52:49.046 22 december 1997
22026291.fts 55 224 23:11:01.436 22 december 1997
22026292.fts 63 239 23:29:13.225 22 december 1997
22026293.fts 72 254 23:47:26.815 22 december 1997

Xavier Leprette
Nov 17 2000 12:39:48 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 7 December 1998


This comet is fairly faint and has a tail. Visible in 4 images,
there would have been more but 4 images are missing.

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

Image X Y Time Date
22038781.fts 227 7 20:30:06.473 07 Dec 1998
.
.
.
.
22038786.fts 227 56 21:30:08.740 07 Dec 1998
22038787.fts 227 74 21:54:06.426 07 Dec 1998
22038788.fts 228 105 22:30:05.907 07 Dec 1998

Michael Oates
Nov 17 2000 13:19:16 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 8 December 1998


This comet is fairly faint and has a tail. Visible in 3 images.
It starts off with a good tail, but degrades quite quickly, the
last image looks like it may have fragmented into 2 or 3 pieces!
(but there again, going off the spread of the points I think it's
just noise)

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

Image X Y Time Date
22038828.fts 195 27 19:04:10.366 08 Dec 1998
22038829.fts 196 67 19:54:08.139 08 Dec 1998
22038830.fts 198 100 20:30:05.520 08 Dec 1998

The positions of the pieces (or noise) in the last image are:-
X Y
A 201 95
B 199 98
C 198 100 (This being the best fit for the comet path)

Michael Oates
Nov 17 2000 17:10:09 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 9/10 December 1998


Quite a bright condensed comet with a slight tail in the
earlier images. Visible in 8 images.

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

Image X Y Time Date
22038885.fts 138 10 21:30:08.701 09 Dec 1998
22038886.fts 140 28 21:54:05.488 09 Dec 1998
22038887.fts 143 56 22:30:05.569 09 Dec 1998
22038888.fts 148 105 23:30:06.436 09 Dec 1998
22038889.fts 151 125 23:54:05.422 09 Dec 1998
22038890.fts 155 156 00:30:05.603 10 Dec 1998
22038891.fts 159 177 00:54:05.890 10 Dec 1998
22038892.fts 166 210 01:32:00.769 10 Dec 1998

Michael Oates
Nov 18 2000 06:00:23 Michael Oates
mike@ph.u-net.com
Two more comets from the 9th Dec, both quite different, the first 

being faint with a tail, the second is more condensed with little
tail. Both visible in 8 images each.

The brightness of the first one varies quite a bit!

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

Comet 1

Image X Y Time Date
22038847.fts 146 11 03:54:05.478 09 Dec 1998
22038848.fts 149 26 04:30:05.558 09 Dec 1998
22038849.fts 151 45 04:54:05.445 09 Dec 1998
22038850.fts 154 73 05:30:05.426 09 Dec 1998
22038851.fts 156 94 05:54:05.613 09 Dec 1998
22038852.fts 160 125 06:30:05.593 09 Dec 1998
22038853.fts 163 144 06:54:05.580 09 Dec 1998
22038853.fts 166 177 07:31:59.958 09 Dec 1998


Comet 2

Image X Y Time Date
22038873.fts 155 7 16:54:05.452 09 Dec 1998
22038874.fts 156 35 17:30:05.732 09 Dec 1998
22038875.fts 158 54 17:54:06.819 09 Dec 1998
22038876.fts 161 83 18:30:05.600 09 Dec 1998
22038877.fts 163 102 18:54:06.287 09 Dec 1998
22038878.fts 167 135 19:31:58.166 09 Dec 1998
22038879.fts 170 153 19:54:06.354 09 Dec 1998
22038880.fts 175 185 20:30:05.534 09 Dec 1998

Michael Oates
Nov 18 2000 09:12:00 Michael Oates
mike@ph.u-net.com
Archive sungrazer in C2 images from 11/12 December 1998


This quite bright and very condensed with no tail, seen in 5
images below plus more from next day

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

Image X Y Time Date
22038971.fts 139 3 21:30:09.098 11 Dec 1998
22038972.fts 141 21 21:54:06.085 11 Dec 1998
22038973.fts 143 48 22:30:05.466 11 Dec 1998
22038974.fts 149 93 23:30:05.534 11 Dec 1998
22038975.fts 152 112 23:54:05.421 11 Dec 1998
.
(More images for next day to follow)

Michael Oates
Nov 18 2000 10:54:25 Maik Meyer
maik@comethunter.de
C2 comet in real time images of Nov. 11, 2000


1024x1024 images, 0,0 in upper left

06:54 UT 380 901
07:31 UT 370 911
08:06 UT 360 882

Medium bright, hint of a tail.

Earlier images not yet available.

Regards

Maik
Nov 18 2000 10:55:08 Maik Meyer
maik@comethunter.de
Sorry, the correct date of course November 18, 2000.


Maik
Nov 18 2000 11:18:17 Maik Meyer
maik@comethunter.de
Sorry again, I seem to have mixed up the pixel coordinates:


Here are the correct ones:

Date: Nov, 18, 2000, Tel: C2, 1024x1024 images, 0,0 = UPPER left

Time X y
06:54 380 941
07:31 370 911
08:06 360 882
08:30 353 863
09:06 345 831

Regards

Maik
Nov 18 2000 12:46:50 michael boschat
mboschat@ns.sympatico.ca
Possible sungrazer in C3 images - 20001118_xxxx UT


Date: November 18, 2000
c4r
Time: 20001118_xxxx UT

Telescope: C3

Coordinates next post.

Brief description of comet:


Michael Boschat
Nov 19 2000 01:43:12 Michael Oates
mike@ph.u-net.com
Realtime/Archive sungrazer in C2 from 16 Nov 2000


This was was missed from 2 days ago!

In 9 images, it's a very faint one with a just a hint
of a tail to start with.

Image X Y
20001116_0630_c2.gif 492 13
20001116_0654_c2.gif 483 33
20001116_0731_c2.gif 469 64
20001116_0754_c2.gif 461 83
20001116_0806_c2.gif 457 93
20001116_0830_c2.gif 448 114
20001116_0854_c2.gif 440 135
20001116_0906_c2.gif 435 144
20001116_0930_c2.gif 429 163

Michael Oates
Nov 20 2000 14:54:18 Michael Oates
mike@ph.u-net.com
New real time comet in C2 For 20th Nov 2000


Quite bright

Image X Y
20001119_2330_c2.gif 440 3
20001119_2354_c2.gif 432 23
20001120_0006_c2.gif 429 33

Michael Oates
Nov 20 2000 15:46:22 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
The following reported objects have been confirmed as SOHO comets.

This covers all objects reported from Nov 6 to Nov 16, 2000.

SOHO numbering is tentative. Times are approximate.

Anything not listed which was reported in that interval has been
rejected. The reasons vary. (Note to the discoverers: Please
contact me if you wish to question any of the rejected claims.)

SOHO # Discoverer Tel. Date/Time (UT)
------ --------- ---- --------------------
229 M. Oates C2 97/11/01 22:06-23:31
230 M. Oates C2 97/11/03 14:26-16:36
231 M. Oates C2 97/11/08 13:31-15:55
232 M. Oates C2 97/11/08 20:49-22:24
233 X. Leprette C2 97/12/03 00:27-03:27
234 X. Leprette C2 97/12/03 01:55-03:55
235 X. Leprette C2 97/12/06 08:55-11:27
236 M. Oates C3,C2 00/11/11 01:42... and 06:50...
237 X. Leprette C2 97/12/10 09:27-11:55
238 M. Oates C2 98/12/05 13:32-15:54
239 X. Leprette C2 97/12/20 21:19-23:28
240 X. Leprette C2 97/12/21 08:04-12:48
241 X. Leprette C2 97/12/22 21:03-23:47

Doug
Nov 20 2000 23:31:43 Jim Danaher
danaher@sprynet.com
Possible comet in c2:

11/21/2000 03:06 x=585 y=1016
11/21/2000 03:30 x=573 y=997
Based on upper left 0,0
Jim Danaher
danaher@sprynet.com
Nov 21 2000 01:13:44 Michael Oates
mike@ph.u-net.com
Two archive sungrazers in C2 images from 14 December 1998


Both of these are in the same images running on a parallel path.
One much brighter, diffuse with short tail, the fainter one
with no tail.

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

Comet 1 Comet 2

Image X Y X Y Time Date
22039090.fts 101 17 05:54:05.475 14 Dec 1998
22039091.fts 105 45 134 3 06:30:06.054 14 Dec 1998
22039092.fts 109 63 136 21 06:54:06.641 14 Dec 1998
22039093.fts 115 94 141 51 07:31:56.720 14 Dec 1998
22039094.fts 119 112 144 69 07:54:05.508 14 Dec 1998
22039095.fts 126 141 149 97 08:30:07.089 14 Dec 1998
22039096.fts 131 162 153 117 08:54:05.476 14 Dec 1998
22039097.fts 140 194 159 147 09:30:05.626 14 Dec 1998
22039098.fts 146 214 09:54:05.443 14 Dec 1998

Michael Oates
Nov 21 2000 13:58:18 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
This post covers all objects reported between Nov 17, 2000

and 1830 UT on Nov 21, 2000. This means, for the first time
in weeks, we're caught up, at least as far as confirming reports.

SOHO numbering is tentative. Times are approximate.

Anything not listed which was reported in that interval has
been rejected. Contact me if you wish to dispute any of this.

(Thanks to Maik Meyer for breaking up Michael Oates' streak)

SOHO # Discoverer Tel. Date/Time (UT)
------ --------- ---- --------------------
242 M. Oates C2 98/12/07 20:30-22:30
243 M. Oates C2 98/12/09-10 21:30-00:54
244 M. Oates C2 98/12/09 04:30-06:54
245 M. Oates C2 98/12/09 16:54-20:30
246 M. Oates C2 98/12/11-12 21:30-01:54
247 M. Meyer C2 00/11/18 05:30-09:06 (C3?)
248 M. Oates C2 00/11/16 06:30-09:06
249 M. Oates C2 00/11/19-20 23:30-02:54
250 M. Oates C2 98/12/14 05:54-10:30

Doug
Nov 21 2000 16:27:39 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
Sorry, but I missed this one on the last post.  It was

reported in the same e-mail as another comet, and because of
the formatting of that post, I managed to overlook it.

This is yet another case of 'twin' comets (with the one reported
as SOHO-250), though they differ significantly in brightness.

SOHO-251 (M. Oates)

DATE TIME TEL COL ROW
1998/12/14 06:30:06 C2 133.0 1.0
1998/12/14 06:54:06 C2 135.0 19.0
1998/12/14 07:31:56 C2 139.0 49.0
1998/12/14 07:54:05 C2 144.0 68.0
1998/12/14 08:30:07 C2 149.0 97.0
1998/12/14 08:54:05 C2 152.0 118.0

Doug
Nov 21 2000 16:39:55 michael boschat
mboschat@ns.sympatico.ca
Possible sungrazer in C2 images - 20001121_2006 UT


Date: November 21, 2000

Time: 20001121_2006 UT

Telescope: C2

Coordinates next post.

Brief description of comet:

faint object probally noise but can't tell,
on left side in lower right near a stationaly
defect left of the LASCO logo.
x object
x
x # defect LOGO

Michael Boschat
Nov 21 2000 16:45:52 michael boschat
mboschat@ns.sympatico.ca
Approximate XY Positions of comet.


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

0,0 in upper left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20001121_2006.gif 512 x 512 365, 474
20001121_2030.gif 512 x 512 367, 472
20001121_2108.gif 512 x 512 369, 470
20001121_2118.gif 512 x 512 370, 465

----------------
Michael Boschat
Nov 21 2000 16:58:48 michael boschat
mboschat@ns.sympatico.ca
Oppsss... the XY post

should read LASCO C2 IMAGES not C3!
sorry

Mike Boschat
Nov 22 2000 02:39:31 Xavier Leprette
xavier.leprette@education.gouv.fr
Possible archival sungrazer in C2 frames from 08 november 1998


The object is a fairly faint blob, condensed, without a tail.
It is visible in 6 consecutives images and the moving seems
coherent.
Instrument : C2

Positions measured from the bottom-left corner
of the1024x1024 frames :

Ref. image, X, Y, Time , Date
22037795.fts 489 22 07:25:32.606 08 november 1998
22037796.fts 474 45 07:54:05.390 08 november 1998
22037797.fts 461 65 08:18:05.375 08 november 1998
22037798.fts 442 95 08:54:05.455 08 november 1998
22037799.fts 430 116 09:18:06.041 08 november 1998
22037800.fts 411 147 09:54:06.620 08 november 1998

Xavier Leprette
Nov 23 2000 04:45:31 Xavier Leprette
xavier.leprette@education.gouv.fr
Two possible archival sungrazers in C2 frames from 07 november 1998


Both suspect objects are visible in the C2 instrument and follow
a parallel path.

Appareance of the possible comets :
The first object (X1,Y1) looks like a faint, fuzzy blob without a obvious tail.
The second one (X2,Y2) is fairly bright, condensed with a hint of a short tail.
Both are visible in 6 consecutives images.

Positions measured from the bottom-left corner
of the1024x1024 frames :
Date is 07 november 1998

Ref. image, X1, Y1, X2, Y2, Time,
22037744.fts 673 13 719 14 07:25:31.844
22037745.fts 655 33 700 36 07:54:05.428
22037746.fts 640 50 683 54 08:18:05.414
22037747.fts 617 77 658 83 08:54:05.393
22037748.fts 604 94 642 100 09:18:06.578
22037749.fts 580 121 616 131 09:54:05.857

Contrary to my previous report (suspect from 1998,nov,8) I think that
these ones are real objects.

Xavier Leprette
Nov 23 2000 08:32:12 Jim Danaher
danaher@sprynet.com
Sungrazer comet in c3 archive 25 Jan 1998:

Based on lower left 0,0
32023524.fts 301,398
32023525.fts 312,407
32023526.fts 321,415
32023527.fts 331,423
32023528.fts 341,432
32023529.fts 352,441
32023530.fts 364,450

A possible second comet is nearby, most visible at:
32023528.fts 336,426

Jim Danaher
danaher@sprynet.com

Nov 24 2000 07:20:33 Jim Danaher
danaher@sprynet.com
Sungrazer comet in c3 archive 14 Jan 2000:

Based on lower left 0,0
32046231.fts 325,400 Jan 14 2000 15:18
32046232.fts 328,413
32046234.fts 335,420
32046235.fts 340,425
32046236.fts 344,428
32046237.fts 348,433
32046238.fts 352,438
and a few more frames...

Jim Danaher
danaher@sprynet.com
Nov 26 2000 13:59:22 Xavier Leprette
xavier.leprette@education.gouv.fr
Two possible archival sungrazers comets in C2 frames

from 24 november 1998

First possible comet.

The object is visible in 7 consecutives images.
It is faintly bright and condensed. It looks like a small
stellar point without tail. I'm not sure that it is a real
object but the distance between each image seems correct.
The appareance is similar to Soho-206 for instance.

All positions measured from the bottom left corner
in 1024x1024 frames :

Ref. image, X, Y, Time , Date
22038050.fts 364 11 04:30:05.475 24 november 1998
22038051.fts 359 31 04:54:05.861 24 november 1998
22038052.fts 351 60 05:30:07.039 24 november 1998
22038053.fts 346 81 05:55:20.724 24 november 1998
22038054.fts 338 112 06:32:06.202 24 november 1998
22038055.fts 333 135 06:58:58.286 24 november 1998
22038056.fts 326 170 07:38:44.662 24 november 1998

The last position is uncertain.

Second possible comet.

The object is fairly bright, fuzzy and visible in 6 consecutive
images. It looks like a small blob with a short tail on the
second and the third image.

Ref. image, X, Y, Time , Date
22038073.fts 292 7 16:36:48.042 24 november 1998
22038074.fts 286 35 17:13:38.820 24 november 1998
22038075.fts 281 57 17:40:40.804 24 november 1998
22038076.fts 275 85 18:17:36.082 24 november 1998
22038077.fts 263 152 19:39:25.533 24 november 1998
22038078.fts 256 194 20:29:32.903 24 november 1998

The last position is uncertain.

Xavier Leprette
Nov 26 2000 17:19:22 Jim Ruebush
ruebush@avalon.net
This object is probably some common object. But is is very comet

like the way it moves.

970502_C1.mpg entered view at UT 15:34 at upper right of field.
970502_C2.mpg emerged from sun glare toward lower left of field.
970503_C3.mpg continues toward lower left.
970504_C3.mpg continues toward lower left.
970505_C3.mpg leaves field of view at UT 3:02

Jim Ruebush
Nov 27 2000 05:53:42 Danaher Jim
danaher@sprynet.com
Sungrazer comet in c3 archive 26 Jan 1997:


Based on lower left 0,0; 1024x1024 images
32011946.fts 277,151 Jan 26 1997 05:45
32011951.fts 291,164
32011952.fts 304,175
32011953.fts 318,188
32011954.fts 333,200
32011955.fts 347,212 Jan 26 1997 13:15

Jim Danaher
danaher@sprynet.com
Nov 27 2000 05:55:49 Jim Danaher
danaher@sprynet.com
Oops, the comet I just reported is SOHO-7!

Sorry!
Jim Danaher
danaher@sprynet.com
Nov 27 2000 06:19:56 Jim Danaher
danaher@sprynet.com
Sungrazer comet in c3 archive 22 Jan 1997:


Based on lower left 0,0; 1024x1024 images
32011846.fts 289,165 Jan 22 1997 01:15
32011847.fts 302,177
32011848.fts 316,189
32011849.fts 329,201
32011854.fts 345,214
32011855.fts 361,227 Jan 22 1997 08:45

Jim Danaher
danaher@sprynet.com
Nov 27 2000 09:34:58 Maik Meyer
maik@comethunter.de
Concerning Jim Ruebush's object of May 02.. 1997. This should be

SOHO-008 = C/1997 H2 (cf. IAUC 6650). Nice one, btw.

Regards

Maik
Nov 27 2000 16:42:27 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
This first message concerns comets which have not been confirmed

as new finds. It covers posts from Nov 21, 2000 at 16:30 up to
the J. Danaher post on Nov 24 at 07:20 plus the J. Ruebush post
on Nov 27.

I have not been able to confirm the following posts:

M. Boschat Nov 21 2000 16:39:55 - 16:58:48
X. Leprette Nov 22 2000 02:39:31

The J. Ruebush object is, as M. Meyer said, a real comet, but one
originally reported by S. Stezelberger, back in May, 1997. It is
C/1997 H2 (SOHO-8) See
http://sungrazer.nascom.nasa.gov/comets_other.html

Doug
Nov 27 2000 16:47:22 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
I have confirmed the following comets reported up to Nov 24, 2000.


As always, SOHO numbering is tentative and the times are approximate.

SOHO # Discoverer Tel. Date/Time (UT)
------ --------- ---- --------------------
252 X. Leprette C2 98/11/07 07:25-09:54
253 X. Leprette C2 98/11/07 07:25-09:18
254 J. Danaher C2,C3 98/01/25-26 14:07-01:08
255 J. Danaher C2 00/01/14 14:18-23:18

Doug
Nov 27 2000 17:24:53 Michael Oates
mike@ph.u-net.com
New real time comet in C2 on 27th Nov 2000


In amongst all the noise there is a faint comet lurking.

It's diffuse with a slight tail.

Image X Y
20001127_0654_c2.gif 379 5
20001127_0731_c2.gif 371 35
20001127_0754_c2.gif 367 53
20001127_0806_c2.gif 364 62
20001127_0830_c2.gif 360 81
plus more

I make this my 100th comet !!

Michael Oates
Nov 27 2000 20:01:47 michael boschat
mboschat@ns.sympatico.ca
Yep, can confirm Oates's comet of today the 27th!

Good eyesight!!!!!!


Michael Boschat
Nov 27 2000 21:59:10 Jim Danaher
danaher@sprynet.com
Correction to my report of:


Nov 27 2000 06:19:56
"Sungrazer comet in c3 archive 22 Jan 1997:
Based on lower left 0,0; [1024x1024] images
32011846.fts 289,165 Jan 22 1997 01:15 ..
32011855.fts 361,227 Jan 22 1997 08:45"

In fact these measurements are based on
lower left 0,0; 1024x576 images, These are shifted
224 pixels with respect to 1024 high images.

Jim Danaher
danaher@sprynet.com
Nov 28 2000 11:18:50 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
I have confirmed the following comets reported up to 1600 UT on

Nov 28, 2000. There is one report still to be resolved,
otherwise, we are up to date.

As always, SOHO numbering is tentative and the times are approximate.

SOHO # Discoverer Tel. Date/Time (UT)
------ --------- ---- --------------------
256 X. Leprette C2 98/11/24 04:30-06:58
257 X. Leprette C2 98/11/24 16:36-19:39
? M. Oates C2 00/11/27 06:54-09:30

Report still being considered:

J. Danaher - 97/01/22 C3 01:15-08:45

Doug
Nov 29 2000 09:05:31 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov

Wondering why there are no images today?

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

SOHO is in CRP mode (10:59 UT).

The transition to CRP mode has started (04:00 UT).

SOHO is in safe mode. SOHO experienced an Attitude Control Unit
(ACU) reset at 00:19:22 UT on November 29, 2000, and went into ESR at
00:19:31 UT. The roll rate is positive at 0.1-0.3 deg/sec. Spacecraft
engineers and the Flight Operations Team are examining telemetry from
the time of the ACU reset, and currently plan to transition the
spacecraft to Coarse Roll Pointing (CRP) mode in a few hours.

So far, no reason to worry.
Doug
Nov 30 2000 08:40:59 Xavier Leprette
xavier.leprette@education.gouv.fr
Archive sungrazer in C2 frames from 25 november 1998


The object is visible in 8 consecutives images.
It looks like a small comet fairly bright, condensed,
with a short tail in the earlier images.

All positions measured from the bottom left corner
in 1024x1024 frames :

Ref. image, X, Y, Time , Date
22038115.fts 340 20 13:54:05.484 25 november 1998
22038116.fts 333 48 14:30:05.462 25 november 1998
22038117.fts 329 68 14:54:06.548 25 november 1998
22038118.fts 323 98 15:30:05.427 25 november 1998
22038119.fts 319 119 15:54:05.413 25 november 1998
22038120.fts 313 150 16:30:05.492 25 november 1998
22038121.fts 309 171 16:54:05.478 25 november 1998
22038122.fts 303 204 17:30:06.556 25 november 1998

Xavier Leprette
Nov 30 2000 10:48:27 Douglas Biesecker
doug@sungrazer.nascom.nasa.gov
        I've confirmed the report by X. Leprette.  It was observed

in the C2 telescope, no tail was evident. Preliminary position
measurements are given below. This one is tentatively numbered as
SOHO-260.

Doug

# HEIGHT DATE TIME ANGLE TEL COL ROW
6.37 1998/11/25 13:31:58 162.3 C2 344.0 1.0
6.18 1998/11/25 13:54:05 161.2 C2 340.0 19.0
5.88 1998/11/25 14:30:05 159.3 C2 333.0 49.0
5.70 1998/11/25 14:54:06 158.1 C2 329.0 67.0
5.40 1998/11/25 15:30:05 155.7 C2 322.0 98.0
5.21 1998/11/25 15:54:05 154.3 C2 319.0 117.0
4.91 1998/11/25 16:30:05 151.4 C2 312.0 149.0
4.73 1998/11/25 16:54:05 149.5 C2 308.0 169.0
4.42 1998/11/25 17:30:06 146.1 C2 303.0 203.0
Nov 30 2000 15:02:29 Xavier Leprette
xavier.leprette@education.gouv.fr
Archive sungrazer in C2 frames from 09 november 1998


The object is visible in 6 consecutives images.
It looks like a small faint comet, round, slightly condensed,
without tail.

All positions measured from the bottom left corner
in 1024x1024 frames :

Ref. image, X, Y, Time , Date
22037850.fts 760 9 02:54:05.627 09 november 1998
22037851.fts 744 27 03:18:06.603 09 november 1998
22037852.fts 720 52 03:54:07.393 09 november 1998
22037853.fts 704 71 04:18:05.378 09 november 1998
22037854.fts 679 98 04:54:05.558 09 november 1998
22037855.fts 662 116 05:18:05.444 09 november 1998

Xavier Leprette