SOHO-LASCO Comet Reports for 200102

Feb 01 2001 08:20:50 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
Hi all,

Sorry I haven't posted anything. I agree I'm not able
to find anything at the positions T. Scarmato posted. I spent
yesterday working with him to try to confirm that he's sending
proper coordinates and to reduce his number of false reports.
I forgot to post this yesterday.

Doug
Feb 01 2001 19:08:44 Michael Oates
mike@ph.u-net.com
I think that one reason for there being a number of 'false'

reports is that these are often based on 512x512 images. These
images are reduced versions of the 1024x1024 images and various
artifacts can be introduced that may look cometry, i.e. diffuse.
Also a lot of detail is also lost.

As many of the comets are rather small and/or faint it would
make sense to only use the 1024x1024 images. I realise that not
everyone has a fast internet connection and can't do this, but
if an object is suspected in 512x512 images in may be a good idea
to at least check some of the full size images before making a
post, thereby saving Doug and his team much time in checking them out.

Michael Oates
Feb 02 2001 04:14:46 mike roman
mroman2@ix.netcom.com
look at lasco c2 gif 2/2/2001 11:57 GMT.Is this a comet? Please respond. THANK YOU VERY MUCH.
Feb 02 2001 04:17:20 mike roman
mroman2@ix.netcom.com
look at lasco c2 gif 2/2/2001 11:57 GMT.Is this a comet? Please respond. THANK YOU VERY MUCH.At the 8:00 position.
Feb 02 2001 04:23:57 mike roman
mroman2@ix.netcom.com
Look at Lasco c2 gif 11:57 GMT.9:00 o'clock position.Is this a comet. Please respond. THANK YOU VERY MUCH.
Feb 02 2001 06:16:57 Sebastian Hoenig
sfhoenig@aol.com
What you saw is in my opinion a SINGLE image cosmic ray hit. But you

have to giv proper coordinates (if possible in more than just one image)
for confirmation.

Sebastian
Feb 02 2001 07:50:11 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
Regarding the Feb 2 reports by M. Roman.


If he is referring to the long thin streak, which is really closer
to the 7 or 8 o'clock position in a horizontal direction, then
that is not a comet. As Sebastian says, it's a cosmic ray. A high
energy particle hitting the CCD, and in this case, at a very, very
shallow angle. So in a sense, it is real, but it's definitely
not cometary.

Doug
Feb 03 2001 06:23:16 michael boschat
aa063@chebucto.ns.ca
Possible sungrazer in C3 images - 20010203_0418 UT


Brief description of comet:

Highly unusal, could be noise,
but because no more images have come
in I will post this. A point moving
parallel to the pylon but away from
the Sun, a bit in the ejection.
I am now downloading the larger
1024 gifs for the same time frame
and if there is nothing I will post
that it was noise. If I am
still unsure I will post coordinates.

Plese note, I am using a modem so
my next post will be a bit later..


Michael Boschat
Feb 03 2001 07:11:57 michael boschat
aa063@chebucto.ns.ca
 Well it is "noise". Disregard my

last post....still no new images in after
the 0542 UT ones.

Mike B.
Feb 03 2001 10:54:40 Scarmato Toni
toniscarmato@libero.it
Possible comet observed on 3 consecutive LASCO C3 images

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

2001/02/03 04:18 (365,257)
2001/02/03 05:18 (364,257)
2001/02/03 05:42 (363,256)


Point of ligth moving toward the sun.
I am waiting the next images to confirm


Regards,

Toni Scarmato
Feb 03 2001 12:01:35 Scarmato Toni
toniscarmato@libero.it
Doug,


regarding my last post I have verify that is noise.

This other suspect object is clear visible on 4
consecutive LASCO C3 images 512x512 (0,0) top-left corner:

2001/01/03 (324,459)
2001/01/03 (322,453)
2001/01/03 (322,448)
2001/01/03 (321,445)

I not have any object so fast on C3 images
but seem moving on a reliable orbit.


Regards,

Toni Scarmato
Feb 03 2001 12:14:33 Scarmato Toni
toniscarmato@libero.it
Excuse me Doug,


but in my last report I Have lost the times.

2001/01/03 04:18 (324,459)
2001/01/03 05:18 (322,452)
2001/01/03 05:42 (322,448)
2001/01/03 06:18 (321,445)

I not have see any object so fast on C3 images
but seem moving on a reliable orbit.
Unfortunately the next image is at 15:42.

Regards,

Toni Scarmato
Feb 06 2001 13:23:50 Scarmato Toni
toniscarmato@libero.it
Looking well the last two images, the comet seem to produce

a fragment.

I am not sure because the images are 512x512 pixel.

Toni
Feb 06 2001 12:52:09 Scarmato Toni
toniscarmato@libero it
Yes! The comet was been reported from Sebastian and XingMing.

The coordinates are the same.


Toni
Feb 03 2001 12:42:09 Michael Oates
mike@ph.u-net.com
Very Bright comet in C3 images with tail


3 images starting:

20010203_1542_c3.gif

This is in bottom left of frame above pilon

Michael Oates
Feb 03 2001 12:47:48 Michael Oates
mike@ph.u-net.com
Very Bright comet in C3 images with tail

UPDATE with positions

0,0 in bottom left of 1024x1024 images

Image Col Row
20010203_1542_c3.gif 140 267
20010203_1618_c3.gif 144 271
20010203_1642_c3.gif 148 274

This is in bottom left of frame above pilon

Michael Oates
Feb 03 2001 13:32:08 Sebastian Hoenig
sfhoenig@aol.com
I can confirm. Nice spotting, Mike.


Congratulations, Sebastian
Feb 03 2001 16:22:30 michael boschat
aa063@chebucto.ns.ca
Possible sungrazer in C3 images - 20010203_1642 UT


Coordinates next post.

Brief description of comet:

If a comet, starts at 1642 UT but
I'm not sure of it because some iamegs
are a bit messed up!

Next post with data

Michael Boschat
Feb 03 2001 16:26:27 michael boschat
aa063@chebucto.ns.ca
To heck with this!!!!!!


Mike
Feb 03 2001 17:46:50 michael boschat
aa063@chebucto.ns.ca
Possible 2nd slightly fainter piece following?

sungrazer in C3 images - 20010203_2042 UT


Here are the (approximate) XY coordinates of
the 2nd piece ?? following.

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


0,460 in lower left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20010203_2042.gif 512 x 512 84, 338
20010203_2142.gif 512 x 512 87, 335
20010203_2218.gif 512 x 512 90, 331

Michael Boschat
Feb 03 2001 17:55:25 Lovejoy Terry
lovejoyt@ozemail.com.au
I see Michael Oate's comet Jan 3 22h - its around mag. 7 with

a hint of tail. It should get fairly bright in 12 hours
or so. Still checking for the second fragment though...

Terry
Feb 03 2001 20:53:30 Sebastian Hoenig
sfhoenig@aol.com
Mike (B),


I can't say that I could identify the object you claimed to be
a fragment of the comet found earlier today so far. I checked the
images of 23:42, 00:18, and 00:42.

Regards, Sebastian
Feb 04 2001 04:11:50 Pavel Shkreby
pavel01@mail.ru
Possible sungrazing comet in a real-time C3 images now.

It is faint and visible from 2001/02/04 03:42 UT in 3 consecutive frames,
On the left of the pylone.
Coordinates in the following message.
------
Pavel Shkreby
Feb 04 2001 04:29:06 Pavel Shkreby
pavel01@mail.ru
Possible comet

Telescope - C3
Date - 4 February 2001
Position in last images
Time X Y
03:42 - 238.672
04:18 - 244.667
05:18 - 254.660
05:42 - 257.657
1024x1024 0.0 - upper left corner
----------
Pavel Shkreby
Feb 04 2001 05:04:31 Sebastian Hoenig
sfhoenig@aol.com
Just to avoid any work for everybody out there: the comet Pavel 

Shkreby reported seems to be the same than the bright one Mike O
reported yesterday.

Regards, Sebastian
Feb 04 2001 10:50:42 Scarmato Toni
toniscarmato@libero.it
Comet at following positions on LASCO C3 image



512x512 (0,0) top-left corner


2001/02/04 11:18 (155,306)

Other positons at next report

Toni Scarmato
Feb 04 2001 11:06:04 Scarmato Toni
toniscarmato@libero.it
Complte set of positions comet on LASCO C3 images

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


2001/02/04 11:18 (155,306)
2001/02/04 11:42 (158,304)
2001/02/04 12:18 (162,302)
2001/02/04 12:42 (164,300)
2001/02/04 13:42 (170,296)
2001/02/04 14:18 (173,293)
2001/02/04 14:42 (175,291)

Regards,

Toni Scarmato
Feb 04 2001 11:17:13 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C3


Image: 20010204_xxxx_c3.gif

Position (x,y): 357,578
(1024 x 1024, (0,0) upper left corner)

Comets follows the bright one. It seems that it broke away in
the 14:42 image. More information in next post.

Sebastian Hoenig
Feb 04 2001 11:17:24 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C3


Image: 20010204_1518_c3.gif

Position (x,y): 357,578
(1024 x 1024, (0,0) upper left corner)

Comets follows the bright one. It seems that it broke away in
the 14:42 image. More information in next post.

Sebastian Hoenig
Feb 04 2001 11:24:07 michael boschat
aa063@chebucto.ns.ca
The sungrazer in C3 images - 20010204_1418 to 1542 UT


Brief description of comet:

I see that either:

A: comet has developed a tail.

OR

B: comet has "fragment" following it
making a look like tail.

I enlarged the 512 images 2x size and
reversed the image to greyscale.

I will say that this comet "will"
have a fragment following in C2.

Michael Boschat
Feb 04 2001 11:30:10 Sebastian Hoenig
sfhoenig@aol.com
My last post coordinates are for the 15:42 image


Sebastian
Feb 04 2001 11:50:25 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C3, starting 20010204_1442_c3.gif

(Update of the first report)

Date: Feb, 2 2001

Description:
The bright comet seems to be broken and there might be a large
fragment following the bright one.

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

Time (x,y)

14:42 346,586
15:18 354,580
(15:42 357,578) NOT SURE ON THAT POSITION!!!!

We will see when it enters C2.

Sebastian Hoenig
Feb 04 2001 14:39:35 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C2, starting 20010204_1931_c2.gif

(Update of last reports)

The bright comet now entered C2. As it last very long to download
the 1024 images I spied on the b&w images of the lasco hompage.
There might really be a fragment behind the comet.

Positions and further information next post.

Sebastian Hoenig

Feb 04 2001 14:49:21 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C2, starting 20010204_1931_c2.gif

(Update of last reports)

It looks like the comet broke in at least 2 or mayby 3 fragments.

Positions as follows:

Time (x,y)

main comet: 19:31 29,720
first fr. : 19:31 25,723
second fr.: 19:31 9,731

The first fragment seems to be a thicker dot in the tail close
behind the core. The second is some way behind the comet.

Let'S wait for further images.

Sebastian Hoenig

Feb 04 2001 15:23:37 Sebastian Hoenig
sfhoenig@aol.com
Comet fragments in LASCO C2, starting 20010204_1931_c2.gif

(Update of last reports)

Comet no gets totally pulverized. I think I could identify what I
called to be the second fragment in the following images (19:54
and 20:06) but I doubt one can call this comets...

So far: No new comets in C2 images.

Sebastian Hoenig

Feb 05 2001 09:27:00 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
A fairly bright comet was reported by M. Oates on Saturday, Feb 3.

The apparent Kreutz sungrazing comet was followed from near the
edge of the C3 field-of-view and was eventually seen in C2 on Feb
4. The comet was fading rapidly as it entered the C2 FOV. It
developed a long, thin tail. There are quite a few data gaps
which should be filled in today. Preliminary measurements of
positions are given below.

Doug

#DETECTOR: C3
#COMMENT: COMET SOHO-293
# HEIGHT DATE TIME ANGLE TEL FC COL ROW
26.00 2001/02/03 16:18:05 124.9 C3 10 144.0 270.0
25.71 2001/02/03 16:42:05 124.9 C3 10 148.0 273.0
23.48 2001/02/03 20:18:07 124.3 C3 10 177.0 298.0
23.24 2001/02/03 20:42:05 124.2 C3 10 180.0 301.0
22.91 2001/02/03 21:18:36 124.1 C3 10 184.0 305.0
22.70 2001/02/03 21:42:06 124.1 C3 10 187.0 307.0
22.30 2001/02/03 22:18:05 123.9 C3 10 192.0 312.0
21.64 2001/02/03 23:18:13 123.8 C3 10 201.0 319.0
21.40 2001/02/03 23:42:05 123.6 C3 10 204.0 322.0
20.98 2001/02/04 00:18:05 123.6 C3 10 210.0 326.0
20.74 2001/02/04 00:42:06 123.5 C3 10 213.0 329.0
20.08 2001/02/04 01:42:07 123.4 C3 10 222.0 336.0
19.73 2001/02/04 02:18:05 123.0 C3 10 226.0 341.0
19.45 2001/02/04 02:42:05 123.0 C3 10 230.0 344.0
19.08 2001/02/04 03:18:05 122.9 C3 10 235.0 348.0
18.87 2001/02/04 03:42:05 122.9 C3 10 238.0 350.0
18.35 2001/02/04 04:18:05 122.6 C3 10 245.0 356.0
17.74 2001/02/04 05:18:14 122.4 C3 10 253.0 363.0
17.46 2001/02/04 05:42:05 122.3 C3 10 257.0 366.0
17.04 2001/02/04 06:18:06 122.3 C3 10 263.0 370.0
16.78 2001/02/04 06:42:05 121.9 C3 10 266.0 374.0
16.08 2001/02/04 07:42:08 121.8 C3 10 276.0 381.0
15.64 2001/02/04 08:18:05 121.6 C3 10 282.0 386.0
15.37 2001/02/04 08:42:05 121.2 C3 10 285.0 390.0
14.91 2001/02/04 09:18:05 121.2 C3 10 292.0 394.0
14.68 2001/02/04 09:42:05 121.0 C3 10 295.0 397.0
13.95 2001/02/04 10:43:38 120.6 C3 10 305.0 405.0
13.47 2001/02/04 11:18:05 120.4 C3 10 312.0 410.0
13.11 2001/02/04 11:42:05 120.2 C3 10 317.0 414.0
12.70 2001/02/04 12:18:05 120.1 C3 10 323.0 418.0
12.39 2001/02/04 12:42:05 119.7 C3 10 327.0 422.0
11.64 2001/02/04 13:42:05 118.9 C3 10 337.0 431.0
11.11 2001/02/04 14:18:05 118.8 C3 10 345.0 436.0
10.75 2001/02/04 14:42:07 118.4 C3 10 350.0 440.0
10.22 2001/02/04 15:18:05 118.3 C3 10 358.0 445.0
9.91 2001/02/04 15:42:32 117.7 C3 10 362.0 449.0
9.40 2001/02/04 16:18:05 117.0 C3 10 369.0 455.0
9.00 2001/02/04 16:42:05 116.7 C3 10 375.0 459.0
8.39 2001/02/04 17:18:06 116.2 C3 10 384.0 465.0
8.07 2001/02/04 17:42:07 116.0 C3 10 389.0 468.0

#DETECTOR: C2
#COMMENT: COMET SOHO-293
# HEIGHT DATE TIME ANGLE TEL FC COL ROW
6.30 2001/02/04 19:31:48 112.7 C2 11 29.0 303.0
5.93 2001/02/04 19:54:05 111.9 C2 11 56.0 321.0
Feb 05 2001 09:38:44 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
A few comments about the comet reports from this weekend.


1) So far I do not agree with any of the claims of a second
fragment. I don't see anything in C3 or C2 that convinces me.
Feel free to push me on this. However, you must send in very
accurate coordinates.

2) Several people, Toni and Pavel, both posted reports for the
comet. But of course, it had already been posted and verified
by 3 other people the previous day. Please, before sending in
a report, check the http://sungrazer.nascom.nasa.gov/recent.html
page and verify that what you're posting is new information.

Doug
Feb 06 2001 12:00:58 Sebastian Hoenig
sfhoenig@aol.com
Possible bright comet in C3 in 20010206_1618.gif


-> Left of the pylon

Position and further details next post.

Sebastian Hoenig
Feb 06 2001 12:04:53 Sebastian Hoenig
sfhoenig@aol.com
Comet in LASCO C3, starting 20010206_1542_c3.gif


Date: Feb 6 2001

Description:
Bright comet with tail left of teh pylon

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

Time (x,y)

15:42 134,735
16:18 139,731

Sebastian Hoenig
Feb 06 2001 12:11:50 XingMing Zhou
zh_x_m@163.net
Possible realtime sungrazer in C3 imgaes,

It's bright.

(0,0) in upper-left corner.
---------------------------------------------
Images Size X, Y
---------------------------------------------
20010206_1542_c3.gif 512 x 512 67, 467
20010206_1618_c3.gif 512 x 512 69, 366
20010206_1642_c3.gif 512 x 512 71, 364
---------------------------------------------
XingMing Zhou
Feb 06 2001 12:48:55 Scarmato Toni
toniscarmato@libero.it
Brigth comet on LASCO C3 image at following positions:

512x512 (0,0) top-left corner

2001/02/06 (67,368)
2001/02/06 (70,366)
2001/02/06 (72,364)
2001/02/06 (74,362)


Comet with tail. I am watching the web page to see if
it was reported.


Regards,

Toni Scarmato
Feb 06 2001 17:24:56 Doug Biesecker
doug@sungrazer.nascom.nasa.gov

Yes, that's quite a comet found by Sebastian. I'm measuring the
accurate positions now to send to the CBAT. UVCS will try to
observe it tomorrow morning. I'll be in bright and early local
time to help with that. I'm predicting this comet will reach
a peak brightness of about magnitude 3.5. That puts it in the
top 5% of all SOHO comets. Sorry, I'm too busy to say much more.

Doug
Feb 07 2001 04:51:13 michael boschat
aa063@chebucto.ns.ca
OFF TOPIC ---


Could someone email what is happening
so far, I'm seeing reports of "fragments"
from this new comet...is there any? I
don't want to report anything already seen.

I have moved and my phone was just
reconnect today...

Thanks..

Mike B.
Feb 07 2001 07:12:07 Sebastian Hoenig
sfhoenig@aol.com
Poss. fragment of the comet in C3


image: 20010207_1142:c3.gif

It seems that there is a fragment within the tail behind the
coma. I am not able to give poper positions at the moment
because I have not the equipment at university but it is very
obvious and clearly visible.

Sebastian Hoenig
Feb 07 2001 07:12:29 Sebastian Hoenig
sfhoenig@aol.com
Poss. fragment of the comet in C3


image: 20010207_1142:c3.gif

It seems that there is a fragment within the tail behind the
coma. I am not able to give poper positions at the moment
because I have not the equipment at university but it is very
obvious and clearly visible.

Sebastian Hoenig
Feb 07 2001 07:16:13 Sebastian Hoenig
sfhoenig@aol.com
Poss. fragment if the comet visible in C3


The comet seems to have a fragment within the tail behin the
coma. It is clearly visible as a thicker object in the tail
I am not able to give proper positions as I don`t have graphic
utilities at university. I will give it in about 1 hour.

Sebastian Hoenig

(This is a "copy" of the first message because I don`t know
whether it arrived.)
Feb 07 2001 08:35:04 Michael Oates
mike@ph.u-net.com
I tend to agree with Sebastian, but after some image

processing I think that there may be two fragments behind
the main comet in the tail, not just one as Sebastian reports.

I have posted an image to...
http://www.ph.u-net.com/comets/20010207_fragments.gif
pointing out the possible fragments.

Of couse it could just be noise, brighter tail features, or just plain imagination :)

Michael Oates
Feb 07 2001 09:00:48 Sebastian Hoenig
sfhoenig@aol.com
Poss. comet fragments in C3 images, starting 20010207_1142_gif

(Update of the other reports)

I agree with Mike, there are indeed 2 fragments. As I had a bad
resolution at the university's iMac I could only see the first
one. They are clearly visible in the 13:42 image.

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

1st fragment (posted by me)

Time (x,y)

11:42 320,592
12:42 332,584
13:42 343,576

The second fragment (posted by Mike Oates) is a bit closer to the
coma.

Let's look at further images...

Sebastian Hoenig
Feb 07 2001 09:16:30 Scarmato Toni
toniscarmato@libero.it
Dear all,


I Have read your comment on possible fragments of the comet.

In fact, I have posted yesterday a report, and lookink again the
last two images (16:42 and 17:18) is visible at following
position a possible fragment closest the comet.


2001/02/06 16:42 (70,365)
2001/02/06 17:18 (72,364)



Regards,

Toni Scarmato
Feb 07 2001 09:43:43 Scarmato Toni
toniscarmato@libero.it
I Have measured the positions of possible fragment and 

comet positons on 3 images 512x512 (0,0) top-left corner.


Fragment

2001/02/07 11:42 (160,297)
2001/02/07 12:42 (165,293)
2001/02/07 13:42 (171,289)

Comet

2001/02/07 11:42 (163,295)
2001/02/07 12:42 (169,291)
2001/02/07 13:42 (175,286)

Seem that the fragment have a relative motion respect the comet.


Regards,

Toni Scarmato
Feb 07 2001 10:21:16 ERIC TINLOT
eric.tinlot@atmel-nantes.fr
Hello,


I detect an evident object with tail on following image
slas_c3wlc_fd_20010207_1242.gif

Is it one of the fragment always detected ?

Best regards

Eric TINLOT
Feb 07 2001 11:42:00 Scarmato Toni
toniscarmato@libero.it
At followintg position is clear visible a fragment of the comet

on LASCO C3 image 512x512 (0,0) top-left corner:

2001/02/07 15:42 (180,282)

It is possible that this enter in LASCO C2.


Toni Scarmato
Feb 07 2001 12:57:07 michael boschat
aa063@chebucto.ns.ca
Paralling sungrazer in C3 images - 20010207_1442 UT


Coordinates next post.

Brief description of comet:

Is there a piece paralling and a bit
behind to the left of the main comet?


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

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


0,460 in lower left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20010207_1442.gif 512 x 512 161, 253
20010207_1542.gif 512 x 512 168, 249
20010207_1642.gif 512 x 512 174, 245

Michael Boschat
Feb 07 2001 13:16:10 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
The comet SOHO-294 entered the C2 FOV at 18:06 UT on Feb 7.

It's at a height of 6.3 Rsun. UVCS is currently pointing at a
height of 6.1 Rsun.

We should see it in UVCS very soon!

Don't know about any fragments. That'll be something to check
tonight.

Doug
Feb 07 2001 13:18:02 Michael Oates
mike@ph.u-net.com
Comet now in C2 with possible fragment

A lot fainter than expected, with long thin tail

0,0 in bottom left in 1024x1024 images

Comet Fragment?
Image Col Row Col Row
20010207_1806_c2.gif 16 329 12 327

Michael Oates
Feb 07 2001 13:37:32 Sebastian Hoenig
sfhoenig@aol.com
Yes! The fragment seems to be that one Mike already found in C3 

images closer to the comet. Let's wait if the other enters,too.

Sebastian
Feb 07 2001 13:46:17 Sebastian Hoenig
sfhoenig@aol.com
Poss. fragment in LASCO C2, starting 20010207_1830_c2.gif


The second fragment entered C2 field of view!!! That's the one
I saw.

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

Time (x,y)

18:30 25,687

Sebastian Hoenig
Feb 07 2001 14:06:10 Michael Oates
mike@ph.u-net.com
I am sticking my neck out here a bit, but here goes...

(I would not normally do this but I feel fairly confident)

Possible New comet in C3 just entered the field
Faint and diffuse
0,0 in bottom left of 1024x1024 images

Image Col Row
20010207_1742_c3.gif 16 306
20010207_1842_c3.gif 26 313

Michael Oates
Feb 07 2001 14:21:47 Scarmato Toni
toniscarmato@libero.it
Well visible in the tail the fragment on C2 at position


2001/02/07 18:54 (25,336) 512x512 (0,0) top-left corner.


Toni Scarmato
Feb 07 2001 14:35:57 Scarmato Toni
toniscarmato@libero.it
Suspect object on 4 consecutive LASCO C3 images

512x512 (0,0) top-left corber at positions:

2001/02/07 15:42 (86,382)
2001/02/07 16:42 (89,379)
2001/02/07 17:42 (92,375)
2001/02/07 18:42 (96,371)

Regards,

Toni Scarmato
Feb 07 2001 14:36:32 Pavel Shkreby
pavel01@mail.ru
Possible sungrazing comet in a real-time C3 images now.

Visible from 2001/02/07 17:42 UT till 18:42 UT
On the left of the pylone.
Coordinates in the following message.
------
Pavel Shkreby
Feb 07 2001 14:48:32 Pavel Shkreby
pavel01@mail.ru
Possible comet

Telescope - C3
Date - 7 February 2001
Position in last images
Time X Y
17:42 - 96.716
18:42 - 97.711
1024x1024 0.0 - upper left corner
----------
Pavel Shkreby
Feb 07 2001 14:55:59 Sebastian Hoenig
sfhoenig@aol.com
Something about the recent comet reports:


Mike,
Sorry but I think you spotted the following stars appearing a bit
diffuse in the images:

17:42 HD 208943 (10.0 mag)
18:42 HD 208847 (9.8 mag)


Pavel,
I could not identify your object.

Regards, Sebastian
Feb 07 2001 15:08:32 Michael Oates
mike@ph.u-net.com
Re: my last report Opps! ignor it, getting a bit trigger happy,

sorry Doug. Consider my wrist severely slapped!
Mike
Feb 07 2001 15:48:11 Pavel Shkreby
pavel01@mail.ru
Sorry, my message has appeared erroneous.

----------
Pavel Shkreby
Feb 07 2001 17:30:57 Sebastian Hoenig
sfhoenig@aol.com
Fragment of SOHO-294 in C3 and C2 images of Feb, 7 2001

(Update of all my reports)

I have finally collected all positions for the fragment I
reported in C3 (and perhaps a bit fast) in C2.

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

Time (x,y)

11:42 320,592 (C3)
12:42 333,583
13:42 345,575
14:42 358,566
15:42 371,557 (not sure about this position)
16:42 386,547
17:42 399,538

19:31 90,647 (C2)
19:54 132,623
20:06 161,608

Comments on the C2 positions:
In the C2-1954 image the fragment is best visible. You can see
that the tail of the main component seems to end or get fainter.
After this incision in the tail it becomes brighter again. This
incision with the brightening can be seen in every of the image.
So I took this as a reference.

Sebastian Hoenig
Feb 07 2001 19:27:01 Tom Bruce
tom@laplaza.org
There was a fuzzy object, moving left-to-right, from (appeared) Dec 28, 2000 to Jan 4, 2001 (disappeared), above the Sun at about 1:00.


It had a bright center and a dim fuzzy tail which appeared to shift left-to-right.

I looked at you archive and it might have been:
C/2000 W1 (Utsunomiya-Jones)
(December 29, 2000 - January 3, 2001)

However .. I'm new at this and not quite sure of what I'm seeing
--------------
You have a great web site .. I think this is what *all* science sites ought to be like.
--------------
btw .. what are the dotted flashes (which appear like noise) but persists over several images. Could some of these be Earth satellites?
------------
tom
http://laplaza.org/~tom/yAstro.htm
Feb 08 2001 05:07:35 Scarmato Toni
toniscarmato@libero.it
Suspect objects on 2 LASCO C3 images 512x512 (0,0) top-left

corner:

First
2001/02/08 08:18 (211,427)
2001/02/08 08:42 (211,424)

Second

2001/02/08 08:18 (213,419)
2001/02/08 08:42 (214,418)

I am waiting other images to verify.


Regards,

Toni Scarmato

Feb 08 2001 05:14:02 Scarmato Toni
toniscarmato@libero.it
Doug,


Sorry!!! not consider my last report "is noise".

Toni
Feb 08 2001 08:06:12 Doug Biesecker
doug@sungrazer.nascom.nasa.gov

As for other comets (I hesitate to call them fragments) in
the FOV along with SOHO-294. I did a quick check and yes, I
think I see something there. I haven't had much time to check
all of the claims. SOHO-294 and a meeting I'm attending are
taking all my time.

Yes, Tom Bruce, that was C/2000 W1. If you check the archived
pages for December, there are positions for C/2000 W1 given.
http://sungrazer.nascom.nasa.gov/comets_found.old//comets_arch.html

Again, a reminder. If you only see something in 2 or 3 images,
do not post it. There is a difference between seeing something
in lots of images but only reporting a few positions to get the
information posted and something which is in only 2 or 3 images.

Doug
Feb 09 2001 01:38:44 Michael Oates
mike@ph.u-net.com
New Sungrazer in C2 images from 8 Feb 2001


This one was in images that were delayed yesterday.
It starts quite bright, and has a hint of a tail.

0,0 in bottom left of 1024x1024 images

Image Col Row
20010208_0454_c2.gif 20 76
20010208_0530_c2.gif 57 113
20010208_0554_c2.gif 83 137
20010208_0606_c2.gif 97 150
20010208_0630_c2.gif 124 175

Michael Oates
Feb 09 2001 08:52:49 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
M. Oates has reported his discovery of an apparent Kreutz sungrazing comet

in LASCO C2 images. This comet was visible in images from Feb 8, 2001.
The comet was not evident in a preliminary inspection of the LASCO C3
images. The apparent position angle of this comet was such that the pylon
holding the C3 occulter most likely obscured the comet. Preliminary
measurements of the positions are given at the end of this e-mail.


Also, a general note for all possible interested parties. Many observers
have indicated that they feel the comet C/2001 C2 (SOHO-294) fragmented
while in the LASCO FOV. I've not been able to find the time to
investigate this and I'm not likely to be able to look at this for some
time. See the images Mike Oates has posted at
http://www.ph.u-net.com/comets/20010207_fragments.gif to see what he is
suggesting. This note is so more people are aware of this and so anyone
who would like to can investigate this.

#COMMENT: COMET SOHO-295
# HEIGHT DATE TIME ANGLE TEL FC COL ROW
7.84 2001/02/08 04:54:06 131.0 C2 10 18.0 75.0
7.21 2001/02/08 05:30:38 130.8 C2 10 58.0 112.0
6.80 2001/02/08 05:54:06 130.6 C2 10 83.0 136.0
6.58 2001/02/08 06:06:05 130.6 C2 10 97.0 149.0

Doug
Feb 09 2001 09:05:10 Scarmato Toni
toniscarmato@libero.it
I Have observed the comet reporeted by M. Oates.

Also this seem to be followed by a fragment visible at
following positions, on 3 images 512x512
0,0) top-left corner:

2001/02/08 05:30 (25,463)
2001/02/08 05:54 (38,450)
2001/02/08 06:06 (45,444)

The object is faint and is not exactely on the same orbit.

Regards,

Toni scarmato
Feb 09 2001 13:39:54 Scarmato Toni
toniscarmato@libero.it
Possible comet on 4 consecutive LASCO C2 archive images

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

2000/07/21 23:06 (32,335)
2000/07/21 23:30 (42,331)
2000/07/21 23:54 (55,325)
2000/07/21 00:06 (70,318)

Comment: the object seem to respect the minimum rules.

Regards,

Toni Scarmato
Feb 09 2001 17:39:24 Doug Biesecker
doug@sungrazer.nascom.nasa.gov

Just a note to let you know that I'll be away on travel from
Feb 10-18. I expect to be in contact with things, but there
are no guarantees. I'll be in Bern, Switzerland, so I'll
obviously be checking up on things at a different time of
the day.

Doug
Feb 10 2001 04:32:37 Scarmato Toni
toniscarmato@libero.it
Sorry!!!


This is the correct set of positions of the my last report:


2000/07/20 23:06 (32,335)
2000/07/20 23:30 (42,331)
2000/07/20 23:54 (55,325)
2000/07/21 00:06 (70,318)

Regards,

Toni Scarmato
Feb 12 2001 04:55:34 Jon Shanklin
j.shanklin@bas.ac.uk
Just for reference, Mercury is currently passing north of the Sun

and Uranus has just passed to the south. Jon
Feb 12 2001 05:05:25 Michael Oates
mike@ph.u-net.com
UPDATE SOHO-295 = C/2001 C4 2001 Feb. 8.44


I have inspected the raw C3 images and found that
the comet is present in quite a few images. The comet
is just at the edge of the pylon and some of the comet
images have been interfered with as a result. This may
make accurate obtaining positions difficult.

The mask used on the realtime GIF images covers these
comets images, so it was only visible in C2 images on
8 Feb 2001.

The comet looks diffuse with no tail visible.

0,0 in bottom left of 1024x1024 images

Image Date Time Col Row
31062122.fts 2001/02/07 18:42:05.570 ?
31062123.fts 2001/02/07 19:42:06.534 315 340
31062124.fts 2001/02/07 20:18:07.112 320 347
31062125.fts 2001/02/07 20:42:05.398 323 350
31062126.fts 2001/02/07 21:18:24.676 330 356
31062127.fts 2001/02/07 21:42:05.462 334 360
31062128.fts 2001/02/07 22:18:05.440 340 366
31062132.fts 2001/02/07 23:18:13.155 350 376
31062133.fts 2001/02/07 23:42:05.690 354 381
31062134.fts 2001/02/08 00:18:05.869 360 387
31062135.fts 2001/02/08 01:30:39.250 374 400
31062136.fts 2001/02/08 01:36:09.046 375 400
31062137.fts 2001/02/08 02:38:40.909 387 412
31062138.fts 2001/02/08 03:18:05.486 394 420
31062139.fts 2001/02/08 03:42:05.572 ?
31062140.fts 2001/02/08 04:18:05.451 ?
31062141.fts 2001/02/08 04:42:05.736 ?

? = comet visible but position uncertain.

Michael Oates
Feb 12 2001 11:55:24 Scarmato Toni
toniscarmato˛libero.it
Suspect object that seem visible on 5 consecutive LASCO C3

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

2001/02/12 09:42 (191,342)
2001/02/12 10:20 (192,341)
2001/02/12 10:42 (193,340)
2001/02/12 11:18 (194,339)
2001/02/12 11:42 (195,338)

Object faint near the pylon.


Regards,

Toni Scarmato
Feb 12 2001 12:32:49 Pavel Shkreby
pavel01@mail.ru
Possible sungrazing comet in a real-time C3 images now.

Visible from 2001/02/12 12:20 UT.
On the left of the pylone.
Coordinates in the following message.
------
Pavel Shkreby
Feb 12 2001 12:35:38 Pavel Shkreby
pavel01@mail.ru
Sorry, I did not see the message Toni about object.

------
Pavel Shkreby
Feb 12 2001 13:18:58 Sebastian Hoenig
sfhoenig@aol.com
I could not identify Toni's object in the 1024 images.


Sebastian
Feb 12 2001 19:49:03 Sebastian Hoenig
sfhoenig@aol.com
Hi all.


I made an animation concerning the fragments of SOHO-294. You can
inspect it under http://members.aol.com/sfhoenig/frags.html
Perhaps my marks are not the best but I think one or two fragments
are obvious.
Feel free to send me your opinion.

Regards, Sebastian
Feb 13 2001 03:04:26 Scarmato Toni
toniscarmato@libero.it
Dear all,


I Have see the animation of Sebastian and the elaboration
of Mike for possible fragments of the comet SOHO 294.
Clear elaborations that show some piece of the comet.

Also I Have do an elaboration of the possible fragment
of the comet.

At following addres you can see the images.

http://digilander.iol.it/infosis/homepage/soho294elaboration.html

I want know your comment. Thanks.


Regards,

Toni Scarmato
Feb 13 2001 10:43:16 Scarmato Toni
toniscarmato@libero.it
Dear all,


after the comment of S.Hoenig, I Have posted another image
(2001/02/07 18:30) on my web page soho294 for comparison.


Regards,

Toni Scarmato
Feb 13 2001 12:22:12 XingMing Zhou
zh_x_m@163.net
A object in c3 images form Feb 11 2001,Non-K comet? 

I can see it in "mpg" .
0,0 in upper left corner

----------------------------------------------
Images Size X, Y
----------------------------------------------
more images
20010211_0242_c3.gif 512 x 512 135, 126
20010211_0518_c3.gif 512 x 512 142, 126
20010211_0918_c3.gif 512 x 512 154, 126
more images
20010213_1118_c3.gif 512 x 512 298, 128
20010213_1142_c3.gif 512 x 512 300, 128
----------------------------------------------
XingMing Zhou
Feb 13 2001 17:52:17 Michael Oates
mike@ph.u-net.com
SOHO-294 my thoughts...


I know I contributed to the 'fragment' theory about this comet
but to be quite honest, I think it should be dropped.

There is just not enough evidence to say yes or no, the object/s
is/are not consistent and certainly does not appear in nearly enough frames to be even remotely considered.

I have seem many other claims (mostly my own) that have far more
credibility as comets than this and been rejected, due to an
insufficient number of comet images.

It would be nice to think that this comet has some fragments, but
without conclusive proof, we will have to leave it at that.

One other thing that I forgot to mention when posting my
enhanced images, was that such enhancment can introduce artifacts
and we can fool ourself into thinking they are real objects. There
is so much noise in these images that we have to be very careful.

Michael Oates
Feb 13 2001 20:56:19 XingMing Zhou
zh_x_m@163.net
Sorry,The object in my latest report is the Uranus.

Feb 13 2001 21:12:38 michael boschat
aa063@chebucto.ns.ca
Possible sungrazer in C3 images - 20010213_2342 UT


Coordinates next post.

Brief description of comet:

fairly bright

Michael Boschat
Feb 13 2001 21:25:09 michael boschat
aa063@chebucto.ns.ca
Here are the (approximate) XY coordinates of 

the object.

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


0,460 in lower left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20010213_2342.gif 512 x 512 101, 341
20010214_0018.gif 512 x 512 101, 339
20010214_0042.gif 512 x 512 104, 340
20010214_0142.gif 512 x 512 109, 333

Mike Boschat
Feb 13 2001 21:37:02 michael boschat
aa063@chebucto.ns.ca
CORRECTED XY's !


Did not re start my animation
to get better XY's the first time...
==========================

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

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


0,460 in lower left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20010213_2342.gif 512 x 512 101, 341
20010214_0018.gif 512 x 512 104, 339
20010214_0042.gif 512 x 512 105, 337
20010214_0142.gif 512 x 512 109, 333
Feb 14 2001 00:37:15 XingMing Zhou
zh_x_m@163.net
I can see Boschat's possible comet in 512x512 images:) 

But my report is Mercury:(
Feb 14 2001 01:39:28 Michael Oates
mike@ph.u-net.com
Very bright object in C2 taveling from right to left

towards the Sun. It does not seem to be a planet, what is it ?
Too fast for a planet of minor planet
Could it be a Non Kreutz ?

Image Col Row
20010213_2330_c2.gif 970 607
20010213_2354_c2.gif
20010214_0006_c2.gif
20010214_0030_c2.gif
20010214_0054_c2.gif
20010214_0131_c2.gif
20010214_0154_c2.gif
20010214_0206_c2.gif 919 600

Michael Oates
Feb 14 2001 02:05:07 Michael Oates
mike@ph.u-net.com
UPDATE on last report:

I am quite sure that this is a comet, close inspection
shows it very slightly diffuse, and it is getting slightly fainter
as it gets closer to the Sun. I can't see it in C3 images. Have checked for any other objects that could be visible in this area
and can't find any.

0,0 in bottom left of 1024x1024 images
Image Col Row
20010213_2330_c2.gif 970 607
20010213_2354_c2.gif 963 606
20010214_0006_c2.gif 959 606
20010214_0030_c2.gif 952 605
20010214_0054_c2.gif 944 420
20010214_0131_c2.gif 931 602
20010214_0154_c2.gif 924 601
20010214_0206_c2.gif 919 600

Michael Oates
Feb 14 2001 04:15:57 Sebastian Hoenig
sfhoenig@aol.com
Yes Mike! No other objects in this area. So I think:

Congratulations!

Sebastian
Feb 14 2001 05:03:38 Jon Shanklin
j.shanklin@bas.ac.uk
There is an interesting feature on the lower right of C3, which 

emerges from the occulting disc at perhaps 22:00 on February 13.
This appears to be diffuse with a tail and is probably a plasma
feature, however it does appear to be moving faster than the
local solar wind. It is worth remembering that some comets do
disintegrate completely (eg 1999 S4) as they approach or recede
from the Sun and such objects could mimic solar events.
Jon Shanklin
Feb 14 2001 05:24:11 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C3, starting 20010213_2318_c3.gif


Date: Feb 13/14 2001

Description:
It seems to be on the same trajectory than the comet discovered
by Mike Oates BUT is visible in C3 images. Perhaps it is the same
OR it may be a second one related to that of Mike. I am surprised
Mike did not see it while checking for the other one.

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

Time (x,y)

23:18 615,468
23:42 614,468
00:18 612,469
00:42 610,469
01:42 605,470

Perhaps one can check whether Mike's discovery might still be
visible in C3 at this time.

Sebastian Hoenig
Feb 14 2001 06:06:03 michael boschat
aa063@chebucto.ns.ca
Re: Shanklin's item;


I saw something similar in C2 last year, it looked
very much like a comet diffuse head and short
tail...caught me off guard really...but was part of
the ejection.

This feature in C3 yesterday I noted is sililar
and I would say part it is part of the streamer.

Mike Boschat
Feb 14 2001 06:14:52 Kazimieras Cernis
cernis@itpa.lt
I can confirm bright non-sungrazer in C2 discovered by M. Oates


Sungrazer in C3 is seen on 5 images (left of pylon) from 23:18
Feb 13.
Coordinates next message.
Kazimieras
Feb 14 2001 06:18:24 Michael Oates
mike@ph.u-net.com
The object that Sebastian reports in C3 is, I am fairly sure, the

same that I reported in C2, at least that area of the C3 frame is
covered by the C2 field.

I was in rather a rush to get to work when I reported the object,
and obviously did not check C3 well enough, thank you Sebastian
for pointing it out.

Michael Oates
Feb 14 2001 06:56:20 Kazimieras Cernis
cernis@itpa.lt
The sungrazer comet I observed is about 7 mag in C3.


TEL DATE TIME COL ROW
C3 2001/02/14 OO:18 207 286

Best regards,

Kazimieras Cernis
Feb 14 2001 07:25:23 Michael Oates
mike@ph.u-net.com
I can confirm Kazimieras Cernis sungrazer in C3 with the

following positions.

0,0 in bottom left of 1024x1024 images
Image Col Row
20010213_2318_c3.gif 197 278
20010213_2342_c3.gif 202 281
20010214_0018_c3.gif 207 286
20010214_0042_c3.gif 210 289
20010214_0142_c3.gif 219 297

I also note a possible second comet following on behind...
Image Col Row
20010214_0018_c3.gif 193 281
20010214_0042_c3.gif 195 283
20010214_0142_c3.gif 202 288
Time will tell for this but it could just be noise.
I would not normally have reported this on it's own.

Michael Oates
Feb 14 2001 08:49:16 MICHAEL BOSCHAT
aa063@chebucto.ns.ca
HAS ANYONE SEEN MY FIND! I reported 

last night at 2342 UT!
that crenis is suppoosed to see in C3?!!

My one is left of the bloody pylon
passing a star...

I'M REALLY TIRED OF THIS!

Mike B.
Feb 14 2001 09:02:55 Scarmato Toni
toniscarmato@libero.it
I have observed this two object that I Think are the same

object, reported by M. Oates, on C3 and C2 512x512 images
(0,0) top-left corner:


On C3

2001/02/13 23:18 (308,283)
2001/02/13 23:42 (307,284)
2001/02/14 00:18 (306,284)
2001/02/14 00:42 (305,284)
2001/02/14 01:42 (304,284)

On C2

2001/02/13 23:54 (482,209)
2001/02/14 00:06 (480,209)
2001/02/14 00:30 (476,209)
2001/02/14 00:54 (472,210)



Regards,

Toni Scarmato
Feb 14 2001 09:10:43 Scarmato Toni
toniscarmato@libero.it
Sorry!!!!


This is the correct set of positions on C3
regarding my last report:

On C3

2001/02/13 23:18 (308,234)
2001/02/13 23:42 (307,234)
2001/02/14 00:18 (306,234)
2001/02/14 00:42 (305,234)
2001/02/14 01:42 (304,234)

Toni Scarmato
Feb 14 2001 09:35:53 Sebastian Hoenig
sfhoenig@aol.com
Hi all.


Just to bring all those finds in order:

1.) I can confirm that non-Kreutz comet of Mike Oates.

2.) I can conform the sungrazer of Mike Boschat. Congarts!
Sorry for Kazimieras and Toni, you spotted that of Mike B.

3.) I am not sure on the probably following comet reported by
Mike Oates. The sungrazer is quite diffuse and I think we
have to wait on further images...or on C2.

I hope this will take the emotions out of todays muddle.

Sebastian
Feb 14 2001 09:37:25 Scarmato Toni
toniscarmato@libero.it
Suspect object visible on 4 consecutive C2 images 512x512

(0,0) top-left corner

2001/02/14 05:30 (143,60)
2001/02/14 05:54 (147,86)
2001/02/14 06:06 (149,108)
2001/02/14 06:30 (154,132)


The object seem to respect the minimum rules.


Regards,

Toni Scarmato
Feb 14 2001 09:37:49 Sebastian Hoenig
sfhoenig@aol.com
Correction: 


Of course: Toni spotted that non-Kreutz of Mike O.

Sebastian
Feb 14 2001 10:17:51 ERIC TINLOT
eric.tinlot@atmel-wm.com
Hello all,



Comet found on C3 image 1024*1024 (top left =0,0)

14 feb 2001 09:42 x=296 y=662

and on several other image before

Eric
Feb 14 2001 10:25:29 Eric TINLOT
eric.tinlot@atmel-wm.com
Suspect object visible on 6 consecutive C3 images 1024*1024

(0,0) top-left corner

2001/02/14 09:18 (292,665)
2001/02/14 09:42 (296,662)
2001/02/14 10:20 (302,657)
2001/02/14 10:42 (307,653)
2001/02/14 11:18 (313,648)
2001/02/14 11:42 (317,644)


Regards,

Eric
Feb 14 2001 10:31:45 Michael Oates
mike@ph.u-net.com
Ignor my report of a possible sungrazer in C3 following on from

the one Michael B reported, after more images came it, it was not
visible.

Michael Oates
Feb 14 2001 10:53:14 michael boschat
aa063@chebucto.ns.ca
OT; Apologies..


My apologies for "yelling" having
a bad day with the boss and some
students...too much work and
moving to a new place with
bills coming in!

Mike B.
Feb 14 2001 11:03:21 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
Hi all,

Just wanted to let you know that I'm following the web
page and wish I was back at GSFC to do something about all of
this. Though I have to admit, you all seem to be able to do
this without me. Ssshhhh. Don't tell anyone at NASA.

So, pending confirmation, are we at 299?

Doug
Feb 14 2001 11:18:38 michael boschat
aa063@chebucto.ns.ca
OT - My XY coordinate problem


Most of you cannot match my XY coordinates
when I find a comet and I also cannot match
yours XY to see what you are looking at.

When I loop the images I have to do
them in 4 sections because I cannot fit the
whole image on my monitor. So, when I loop the lower
left section my XY is 0,460. If I loop
the upper left then it is 0,0 and the other
2 sections would have different XY's also.

I believe Doug mentioned this last year on this
form as to my XY problem and how to adjust to
get the "real" XY that you all could match up
to see were I am, so to speak.

Mike B.

( again sorry for the yelling post I made )
I'm yelling at my computer now because it is making
static and grinding noises in the hard drive!
Feb 14 2001 11:37:25 Sebastian Hoenig
sfhoenig@aol.com
Hey Doug,


almost right... If I counted well Mike B's sungrazer is SOHO-296
and Mike O's non-Kreutz is SOHO-297. So 4 more to go (you have the
chance to be back at home when we do the 300th).

Sebastian
Feb 14 2001 11:38:45 Sebastian Hoenig
sfhoenig@aol.com
Oh, 300-297 is ... mmm... yes: 3! (not 4)


Sebastian
Feb 14 2001 12:37:39 Sebastian Hoenig
sfhoenig@aol.com
Possible comet in LASCO C3, starting 20010214_1642_c3.gif


Date: Feb 14, 2001

Description:
medium bright comet seems to move towards the sun, no tail
visible, right of and close to the pylon

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

Time (x,y)

16:42 254,815
17:18 260,809

It's a bit early to say it is real but orbit and speed makes it
more reliable. I will inform if more images are in.

Sebastian Hoenig
Feb 14 2001 12:59:49 Sebastian Hoenig
sfhoenig@aol.com
DISREGARD LAST MESSAGE!

Oh, what have I done. Suspension was faster than my mind. :-((

Sebastian
Feb 14 2001 15:21:19 Sebastian Hoenig
sfhoenig@aol.com
The sungrazer (SOHO-296 ?) arrived in C2 at 19:31.


Note: It seems to have something in tow (positions 1024, top left:
19:54 38,837; 20:06 55,825) but as there are only those two frames
it's hopeless to call that comet or fragment.

Sebastian Hoenig
Feb 14 2001 15:53:28 Sebastian Hoenig
sfhoenig@aol.com
The sungrazer (SOHO-296 ?) arrived in C2 at 19:31.


Note: It seems to have something in tow (positions 1024, top left:
19:54 38,837; 20:06 55,825; 20:30 86,801) but as there are only those three frames it's hopeless to call that comet or fragment.

Sebastian Hoenig
Feb 14 2001 22:50:48 michael boschat
aa063@chebucto.ns.ca
Possible sungrazer in C3 images - 20010215_0042 UT


Brief description of comet:

faint, not sure on this one.
It does not "jerk" but moves
slow, brightness constant.
It is to left of pylon and
almost in the same area
as were the last comet was found.

The images seem to be late again, no 0318 UT
for a good 5th image as it is now 0348 UT.
So I'll post this now...

I'll give the XY's now..

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

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

0,460 in lower left corner

LASCO C3 IMAGES

Date & UT Size X and Y
of Images used Coordinates
--------------------------------------------
20010215_0042.gif 1024 x 1024 230, 169
20010215_0142.gif 1024 x 1024 234, 164
20010215_0218.gif 1024 x 1024 239, 161
20010215_0242.gif 1024 x 1024 242, 159

Michael Boschat
Feb 15 2001 02:53:28 Scarmato Toni
toniscarmato@libero.it
Suspect object entered on LASCO C3 at 2001/02/15 02:18.

At this moment I not Have other images to confirm.

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

2001/02/15 02:18 (462,430)
2001/02/15 02:42 (460,428)

Excuse me Doug if I reported only two position, but the
object not vary in shape
and brigthness and move toward the sun.

I am waiting other images to confirm.


Regards,

Toni Scarmato
Feb 15 2001 03:05:48 Kazimieras Cernis
cernis@itpa.lt
I can confirm M. Boschat possible object. This time

coordinates are almost correct.
Bottom left corner=0,0 and 1024x1024

Date TIME TEL COL ROW
2001/02/15 1:42 C3 234 301
2001/02/15 2:18 C3 239 304
2001/02/15 2:42 C3 242 305


Kazimieras
Feb 15 2001 03:43:58 Sebastian Hoenig
sfhoenig@aol.com
I think confirmation is a bit early. There is an image of 03:18

and I cannot find the poted object there. There is so much noise
in this area that perhaps can only give the impression of a moving
object. So, why not waiting till todays images come in?

Sebastian
Feb 15 2001 04:45:37 Sebastian Hoenig
sfhoenig@aol.com
Concerning tonight's reports:


I cannot confirm the objects regarding the images of 08:42 and
09:18 - neither Mike's nor Toni's.

Sebastian
Feb 15 2001 08:03:25 michael boschat
aa063@chebucto.ns.ca
Please note, I cannot access
my web browser or email account at this time.
Our computers crashed last night during a
storm. This one is an emergency backup but
don't know how long it will stay up...

Fun things computers!

Mike B.
Feb 16 2001 04:03:43 mike roman
mroman2@ix.netcom.com
On lasco c3 at lower right corner at 02/16/01 7:42.Is this cometary.Sorry if false report.New to this.Thanks.
Feb 16 2001 05:39:44 Sebastian Hoenig
sfhoenig@aol.com
Mike R,


please give propper positions as it is almost impossible to
search something in "lower right corner" as there may be
something you didn't expect. It must be evident what object you
think of.

Sebastian Hoenig
Feb 16 2001 11:55:28 Xavier Leprette
xavier.leprette@education.gouv.fr
Possible sungrazing comet in a real-time C3 images now.


It is faint and visible in 2 consecutive images from 2001/02/16 from 16:18 till 16:42 UT
at middle to the left of the pylone.
The object is moving towards the sun.

I'm waiting others images to confirm my report.
Positions in a next e-mail.

Xavier Leprette
Feb 16 2001 12:31:19 Scarmato Toni
toniscarmato@libero.it
Suspect object on 2 Lasco C3 images 512x512 

(0,0) top-left corner

2001/02/16 16:18 (56,422)
2001/02/16 16:42 (58,421)

I am waiting other image to confirm.

The object move toward the sun and not change in shape and
brigtness.
I not know if it is the same object reported by Xavier.

Regards,

Toni Scarmato
Feb 16 2001 12:37:39 Mimeev Alexander
alexpm@iname.ru
20010216_1618 376_611

20010216_1642 382_601
c3 top/left 1024x1024
Alexander
Feb 16 2001 12:47:10 Scarmato Toni
toniscarmato@libero.it
Regarding my last report, the point of ligth

continue to be visible at position

2001/02/16 17:18 (60,420)

This is not still sufficient to confirm.

Regards,

Toni Scarmato
Feb 16 2001 12:47:14 Xavier Leprette
xavier.leprette@education.gouv.fr
About my previous message, after to have checked a new image,

sorry it was noise.

Xavier Leprette
Feb 16 2001 13:23:51 Scarmato Toni
toniscarmato@libero.it
Regarding my last report the object is not visible

on image at 2001/02/16 17:42. Is noise. Sorry!!!


Toni Scarmato

Feb 16 2001 16:19:40 Derek Hammer
derek@ra.nascom.nasa.gov
Hi group,


Since Doug is away I have been trying to confirm/reject the recent
comet claims. It seems that you are doing a fine job by yourselves
but I must admit my disappointment in having such a large list of
"submissions" that only produce 2 new comets. We must remember
that the claim form is only for submission of comet claims.
It should not be used for general comments. Also, once a claim has
been posted it is neccessary to have only one confirmation
(without coords) unless an unusual circumstance arrises. Finally,
the 4 image limit should not be violated unless the comet is so
obvious in appearance that even I could detect it!

Confirmation results for all items posted later than 2/8 05:07
are below. Please remember that nothing will be official until
Doug returns.


Accepted claims:

Reporter Date(s) Times Tel SOHO #
--------------------------------------------------------
Boschat 02/13(4)/01 20:18-20:30 C3/C2 296
Oates 02/13(4)/01 16:18-04:30 C3/C2 297



Rejected claims:

Reporter Date(s) Times Tel
---------------------------------------------
Scarmato 07/20(1)/00 23:06-00:06 C2
Scarmato 02/12/01 09:42-11:42 C3
Zhou 02/11(3)/01 02:42- C3
Shanklin 02/13/01 22:00- C3
Hoenig 02/13(4)/01 23:18-01:42 C3
Scarmato 02/14/01 05:30-06:30 C2
Tinlot 02/14/01 09:18-11:42 C3
Boschat 02/15/01 00:42-02:42 C3
Scarmato 02/15/01 02:18-02:42 C3
Mimeev 02/16/01 16:18-16:42 C3

If you wish to know why your claim was rejected,
please email me.


Derek

Feb 18 2001 10:30:20 Scarmato Toni
toniscarmato@libero.it
Suspect object on LASCO C3 image 512x512 (0,0) top-left corner

starting at position


2001/02/18 14:10 (125,315)


Other positions at next report.


Regards,

Toni Scarmato
Feb 18 2001 10:41:20 Scarmato Toni
toniscarmato@libero.it
Sorry!!!


Regarding my last post, the object is noise.

Toni Scarmato
Feb 21 2001 02:32:54 Xavier Leprette
xavier.leprette@education.gouv.fr
Out of subject :


Very nice ejection of solar matter in C2 images 2001/02/21 from 3:54 till 6:39 at the south of the sun.

Xavier Leprette

Feb 21 2001 03:34:00 Scarmato Toni
toniscarmato@libero.it
Suspect object moving toward the sun on LASCO C3 

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

Positions:

2001/02/21 05:18 (28,397)
2001/02/21 05:42 (29,396)
2001/02/21 06:18 (30,395)
2001/02/21 06:42 (31,394)


I am waiting other images to confirm.


Regards,

Toni Scarmato
Feb 21 2001 03:54:18 Scarmato Toni
toniscarmato@libero.it
The object of my last report seem continue to be visible

at following position on LASCO C3 image 512x512 (0,0)
top-left corner:


2001/02/21 07:42 (34,392)

Regards,

Toni Scarmato
Feb 21 2001 05:31:22 Sebastian Hoenig
sfhoenig@aol.com
Toni,


I cannot confirm your object regarding the 6:42, 7:42 and 8:18
image with 1024 resolution.

Sebastian
Feb 21 2001 07:51:48 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
Hi all,

I agree that I can't confirm T. Scarmato's claim for
Feb 21. At least one of the points (07:42 UT) is just a star.

So we took all of those images this weekend and not a
single comet or good CME to show for it. Alas.

Doug
Feb 21 2001 12:46:58 Scarmato Toni
toniscarmato@libero.it
Dear Doug,


I am not sure on this object, and I Have thinked if reported
it or no, but after to have looking the images several times,
I Have decide of post the 6 approximate positions on LASCO C2
512x512 (0,0) top-left corner.


2001/02/21 00:06 (273,510)
2001/02/21 00:30 (272,507)
2001/02/21 00:54 (271,503)
2001/02/21 01:32 (270,499)
2001/02/21 01:55 (269,496)?
2001/02/21 02:06 (269,494)

On last 4 images the object move toward the Sun
into the ejected mass.


Regards,

Toni Scarmato


Feb 21 2001 17:22:23 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
Hi all,

The LASCO doors have been closed for spacecraft maneuvers.
This will be a short one. The doors should be opened by Friday
evening at 2100 UT.

Doug
Feb 22 2001 13:00:09 michael boschat
aa063@chebucto.ns.ca
Nice "false" comet moving away from south part
of Sun at 20010222_1118 UT. I would say because it
is short in length it is more or less heading our way?
similar to a short meteor trail in the sky which
would indicate moving almost at you.

Mike B.
Feb 24 2001 06:04:57 Scarmato Toni
toniscarmato@libero.it
Suspect object observed on 4? LASCO C3 images

512x512 (0,) top-left corner:

2001/02/24 05:42 (179,324)
2001/02/24 06:18 (180,320)?
2001/02/24 06:42 (181,316)
2001/02/24 07:42 (183,310)

The object seem appear from the pylon.
I am waiting other images to confirm.


Regards,

Toni Scarmato

Feb 24 2001 09:57:11 Sebastian Hoenig
sfhoenig@aol.com
Toni,


Sorry, no comet! I have checked the high resoluted images of
6:18, 6:42, 7:42 and there was nothing cometary.

Sebastian
Feb 24 2001 13:08:18 Scarmato Toni
toniscarmato@libero.it
OK Sebastian! The suspect object reported in my last post

is not visible at 2001/02/24 09:42.

Regards,

Toni Scarmato
Feb 26 2001 09:42:56 TINLOT Eric
eric.tinlot@atmel-nantes.fr
Suspect object on LASCO C3 : 2001/02/26 13:42


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


2001/02/26 13:42 (411,568) 3 350

wait for next picture.

Regards,

Eric TINLOT
Feb 26 2001 10:43:56 Sebastian Hoenig
sfhoenig@aol.com
Eric,


that's just a SINGLE image cosmic ray hit and not visible in any
previous or following image.

Sebastian
Feb 27 2001 08:29:27 Scarmato Toni
toniscarmato@libero.it
Suspect object that move toward the sun, parallel at the

pylon at left, seem visible on 5 consecutive LASCO C3 images
at following positions:


2001/02/27 05:18 (125,361)
2001/02/27 05:42 (126,360)
2001/02/27 06:18 (127,359)
2001/02/27 06:42 (128,358)
2001/02/27 07:42 (131,356)

Regards,

Toni Scarmato
Feb 27 2001 08:55:30 Doug Biesecker
doug@sungrazer.nascom.nasa.gov
I am unable to confirm the report of T. Scarmato for Feb 27.

Maybe as additional images come in things will change.

On another note, please don't post claims based on a single image.
One image just isn't enough to say anything about anything.

Doug
Feb 27 2001 21:05:35 XingMing Zhou
zh_x_m@163.net
Possible realtime sungrazer in C3 imgaes.


(0,0) in upper-left corner.
---------------------------------------------
Images Size X, Y
---------------------------------------------
20010227_2142_c3.gif 512 x 512 119, 340
20010227_2218_c3.gif 512 x 512 124, 336
20010227_2318_c3.gif 512 x 512 134, 330
20010227_2342_c3.gif 512 x 512 138, 328
20010228_0018_c3.gif 512 x 512 141, 325
20010228_0042_c3.gif 512 x 512 146, 320
---------------------------------------------
XingMing Zhou
Feb 28 2001 02:20:20 Sebastian Hoenig
sfhoenig@aol.com
Xing Ming,


I don't think that the object you posted is a comet. Two reasons:
1st It has a high variety in brightness and shape and 2nd it is
not visible in the 21:18 image. Regarding the brightness of
21:42 and 22:18 it should be.

Sebastian
Feb 28 2001 06:20:05 XingMing Zhou
zh_x_m@163.net
Sebastian,Thank you.

I can't be certain that it is a comet too:(, Possible

XingMing
Feb 28 2001 08:13:14 Scarmato Toni
toniscarmato@libero.it
Suspect object that move toward the sun, parallel at the pylon.

Seem visible on 6 consecuitve LASCO C3 images 512x512 (0,0)
to-left corner at following approximate positions:


2001/02/28 06:42 (167,327)
2001/02/28 07:42 (169,325)
2001/02/28 09:18 (174,322)
2001/02/28 09:42 (176,321)
2001/02/28 10:42 (181,319)
2001/02/28 11:18 (183,318)

Is possible that it is the same object that I Have reported
yesterday?


Regards,

Toni Scarmato
Feb 28 2001 08:23:04 Sebastian Hoenig
sfhoenig@aol.com
Toni,


this cannot be a comet or anything else because your positions
are within the mask used to create the images. Neither stars
nor comets are visible in there. By the way I could not find
anything in the 1024 images.

Regards, Sebastian