SOHO Comets 2017

The table list the provisional number for the comet, the day (UT) and month of the first (discovery) observation, the year and comet identification, the LASCO or STEREO coronagraph on which it was discovered, the discoverer (additional names are independent discoverers), with the number of their discoveries given in brackets following the name, and finally the date of discovery.

SOHO Observed   Des C  G  Observers							Discovered
3258 01/01/2017     C2 Y  Worachate Boonplod						January 1
3259 02/01/2017     C3 K  Peiyuan Sun							January 2
3260 05/01/2017     C2 K  Zhijian Xu							January 5
3261 05/01/2017     C2 K  Worachate Boonplod						January 5
3262 05/01/2017     C3 K  Bo Zhou							January 6
3263 06/01/2017     C3 K  Masanori Uchina						January 6
P    04/01/2017     T1 K  Trygve Prestgard						January 6
P    04/01/2017     T1 K  Trygve Prestgard						January 6
P    05/01/2017     T1 K  Trygve Prestgard						January 8
P    05/01/2017     T1 K  Trygve Prestgard						January 8
P    11/01/2017     T1 K  Trygve Prestgard						January 13
3264 14/01/2017     C2 Y  Masanori Uchina						January 14
75   13/01/2017     T1 K  Trygve Prestgard						January 15
3265 19/01/2017     C3 K  Zhijian Xu							January 19
76   17/01/2017     T1 K  Khadija El Kanbi						January 19
3266 21/01/2017     C3 K  Zhijian Xu							January 21
77   22/01/2017     T1 K  Zhijian Xu							January 25
78   24/01/2017     T1 K  Trygve Prestgard, Khadija El Kanbi				January 26
3267 26/01/2017     C2 K  Zhijian Xu							January 26
P    29/01/2012     T1 K  Trygve Prestgard						January 29
C    31/01/2017     C3 D  Peiyuan Sun							January 31 ?=2000 C4 = 2005 W1 = SOHO 2115
79   28/01/2017     T1 K  Peiyuan Sun							February 1
3268 03/02/2017     C3 K  Zhijian Xu, Sergey Shurpakov					February 3
3269 04/02/2017     C3 K  Worachate Boonplod						February 4
3270 04/02/2017     C3 K  Worachate Boonplod						February 4
3271 07/02/2017     C3 K  Worachate Boonplod						February 7
80   02/02/2017     T1 K  Worachate Boonplod						February 7
81   03/02/2017     T1 K  Zhijian Xu							February 8
82   04/02/2017     T1 K  Zhijian Xu							February 8
3272 12/02/2017     C2 Y  Worachate Boonplod						February 12
83   16/02/2017     T1 K  Worachate Boonplod						February 21
3273 25/02/2017     C3 K  Zhijian Xu							February 25
3274 27/02/2017     C3 K  Zhijian Xu							February 27
P    01/03/2017     C2 Y  Masanori Uchina						March 1
84   19/02/2017     T1 K  Trygve Prestgard						March 2
P    02/03/2017     C3 K  Masanori Uchina						March 2
P    02/03/2017     C3 K  Michal Biesiada						March 2
67   09/02/2008     T1 K  Trygve Prestgard						March 3
P    04/03/2017     C3 K  Szymon Liwo							March 4
P    12/03/2017     C3 K  Worachate Boonplod, Michal Biesiada				March 12
P    14/03/2017     C3 K  Worachate Boonplod						March 14
P    14/03/2017     C3 K  Worachate Boonplod						March 14
85   19/02/2017     T1 K  Karl Battams							March 24
P    26/03/2017     C3 K  Zhijian Xu							March 26
P    27/03/2017     C3 K  Szymon Liwo							March 27
P    29/03/2017     C3 K  Zhijian Xu							March 29
P    02/04/2017     C2 K  Masanori Uchina						April 2
P    04/04/2017     C3 K  Zhijian Xu							April 4
P    04/04/2017     C2 K  Masanori Uchina						April 4
P    07/04/2017     C2 K  Worachate Boonplod						April 7
P    07/04/2017     C3 K  Worachate Boonplod						April 7
P    07/04/2017     C3 K  Worachate Boonplod						April 7
P    07/04/2017     C3 K  Worachate Boonplod						April 7
P    10/04/2017     C2 K  Masanori Uchina						April 10
P    11/04/2017     C2 K  Worachate Boonplod						April 11
P    13/04/2017     C2 K  Masanori Uchina						April 13
P    14/04/2017     C3 K  Worachate Boonplod						April 14
P    15/04/2017     C2 K  Masanori Uchina						April 15
P    16/04/2017     C2 K  Trygve Prestgard, Masanori Uchina				April 16
P    16/04/2017     C2 K  Zhijian Xu							April 16
P    19/04/2017     C3 K  Worachate Boonplod						April 19
P    19/04/2017     C3 K  Worachate Boonplod						April 19
P    19/04/2017     C2 Y  Worachate Boonplod						April 19
P    21/04/2017     C2 K  Worachate Boonplod						April 21
P    22/04/2017     C2 K  Worachate Boonplod						April 22
P    22/04/2017     C3 K  Worachate Boonplod						April 22
P    24/04/2017     C3 K  Worachate Boonplod						April 24
P    25/04/2017     C2 K  Worachate Boonplod						April 25
P    25/04/2017     C3 K  Worachate Boonplod						April 25
The column headed Des is the half month or other designation of the comet. The column headed C gives the SOHO instrument (C2 or C3 for the LASCO coronagraphs, SW for SWAN, T1 or T2 for STEREO) that the comet was discovered in. The column headed G indicates if it is a provisional member of the Kreutz group (K), Meyer group (Y), Marsden group (D), Kracht (R) or other comet (O). P in the SOHO number column indicates the discovery is pending, C indicates that it is confirmed, but not yet numbered, U indicates that is was not confirmed, X that it was confirmed, but there were insufficient observations.

Note that my observer count also includes X/ comets which are not counted as confirmed comets by the SOHO team. Where two or more people report discoveries nearly simultaneously, up to the first three observers are credited here. Where discoverers are clearly not following the SOHO or BAA Comet Section guidelines, they are not credited here at all. If initial reports don't include sufficient positions others may also be credited.

Official milestones:

It is possible that there are further comets to be found in the archival data, most likely non-group comets, but there may still be some Kreutz comets.


Published by Jonathan Shanklin. Jon Shanklin - jds@ast.cam.ac.uk