SOHO Comets 2024

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
4968 02/01/2024     C3 K  Hanjie Tan							January 2
4969 02/01/2024     C2 K  Hanjie Tan							January 2
4970 06/01/2024     C3 K  Jiangao Ruan							January 6
     28/12/2023     SW O  Vladimir Bezugly						January 7 = 12P/Pons-Brooks
4971 07/01/2024     C3 K  Jiangao Ruan							January 7
U    12/01/2024     C3 K  Zesheng Yang							January 13
4972 14/01/2024     C3 K  Robert Pickard						January 14
4973 16/01/2024     C3 K  Hanjie Tan							January 16
4974 24/01/2024     C3 K  Jiangao Ruan							January 24
4975 25/01/2024     C3 K  Hanjie Tan							January 25
4976 29/01/2024     C2 O  Hanjie Tan							January 29
4977 01/02/2024     C3 K  Jiangao Ruan							February 1
4978 01/02/2024     C3 K  Hanjie Tan, Jiangao Ruan, Michal Biesiada, Eryk Banach	February 1
4979 03/02/2024     C3 K  Hanjie Tan							February 3
4980 04/02/2024     C3 K  Worachate Boonplod						February 4
4981 04/02/2024     C3 K  Robert Pickard						February 4
4982 08/02/2024     C3 K  Worachate Boonplod						February 8
4983 08/02/2024     C3 K  Eryk Banach, Hanjie Tan					February 8
4984 11/02/2024     C3 K  Zesheng Yang							February 11
4985 14/02/2024     C3 K  Worachate Boonplod						February 14
4986 17/02/2024     C2 D  Hanjie Tan							February 17
4987 16/02/2024     C3 K  Jiangao Ruan							February 17
4988 19/02/2024     C3 K  Eryk Banach							February 19
4989 24/02/2024     C2 D  Hanjie Tan							February 24
4990 27/02/2024     C3 K  Hanjie Tan							February 27
136  21/02/2024     H1 K  Robert Pickard						February ??
4991 02/03/2024     C3 K  Hanjie Tan							March 2
4992 02/03/2024     C3 K  Hanjie Tan							March 2
4993 07/03/2024     C3 K  Hanjie Tan							March 7
U    10/03/2024     C3 K  Masanori Uchina						March 10
4994 13/03/2024     C3 K  Hanjie Tan							March 13
4995 14/03/2024     C3 K  Jiangao Ruan							March 14
4996 14/03/2024     C3 K  Jiangao Ruan							March 14
4997 21/03/2024     C2 K  Robert Pickard						March 21
4998 22/03/2024     C3 D  Jiangao Ruan							March 22
4999 23/03/2024     C3 O  Jiangao Ruan							March 23
C    23/03/2024     C2 D  Hanjie Tan							March 23 = 4998
5000 25/03/2024     C2 D  Hanjie Tan							March 25
5001 26/03/2024     C2 K  Jiangao Ruan							March 26
5002 26/03/2024     C3 K  Hanjie Tan							March 26
5003 28/03/2024     C2 Y  Michal Biesiada						March 28
5005 28/03/2024     C2 K  Eryk Banach, Hanjie Tan					March 28
5004 28/03/2024     C3 K  Hanjie Tan							March 28
C    29/03/2024     C2 K  Jiangao Ruan							March 29 = 5004
C    25/03/2024     SW O  Vladimir Bezugly						April 1 = 13P/Olbers
5006 01/04/2024     C2 K  Jiangao Ruan							April 1
5007 03/04/2024     C3 K  Jiangao Ruan, Eryk Banach, Zesheng Yang			April 3
5008 08/04/2024     C3 K  Worachate Boonplod						April 8
5009 13/04/2024     C2 K  Zhijian Xu							April 13
5010 24/04/2024     C3 K  Zhijian Xu							April 24
U    30/04/2024     C2 K  Hanjie Tan							April 30
5011 30/04/2024     C3 K  Worachate Boonplod						April 30
5012 02/05/2024     C2 K  Jiangao Ruan							May 2
5013 05/05/2024     C2 K  Hanjie Tan							May 5
5014 06/05/2024     C2 K  Hanjie Tan, Eryk Banach					May 6
5015 06/05/2024     C2 K  Hanjie Tan							May 6
5016 10/05/2024     C3 K  Jiangao Ruan							May 10
5017 11/05/2024     C3 K  Hanjie Tan							May 11
5018 14/05/2024     C2 K  Worachate Boonplod						May 14
5019 17/05/2024     C3 K  Jiangao Ruan							May 17
5020 18/05/2024     C2 K  Hanjie Tan, Eryk Banach					May 18
5021 20/05/2024     C3 K  Worachate Boonplod						May 20
5022 21/05/2024     C2 K  Jiangao Ruan							May 21
5023 22/05/2024     C2 D  Eryk Banach							May 22 = 511 = 1429 ?
5024 23/05/2024     C2 K  Hanjie Tan							May 23
5025 24/05/2024     C2 K  Zesheng Yang							May 24
     01/06/1999     C2 O  Hanjie Tan							May 24
     16/05/2008     C2 R  Hanjie Tan							May 24
     10/04/2006     C2 R  Hanjie Tan							May 24
     24/07/2018     C2 D  Hanjie Tan							May 24
     04/06/2011     C2 Y  Hanjie Tan							May 24
     11/10/2012     C2 Y  Hanjie Tan							May 24
     17/08/2016     C2 Y  Hanjie Tan							May 24
     07/02/2019     C2 Y  Hanjie Tan							May 24
     30/08/2019     C2 Y  Hanjie Tan							May 24
     18/09/1997     C2 Y  Hanjie Tan							May 24
5026 26/05/2024     C3 K  Worachate Boonplod						May 26
5027 26/05/2024     C3 K  Worachate Boonplod						May 26
5028 27/05/2024     C2 K  Zesheng Yang, Hanjie Tan					May 27
5029 28/05/2024     C3 K  Hanjie Tan							May 28
5030 29/05/2024     C2 K  Hanjie Tan							May 29
5031 29/05/2024     C2 K  Hanjie Tan							May 29
5032 30/05/2024     C2 K  Eryk Banach							May 30
5033 31/05/2024     C2 K  Hanjie Tan							May 31
     02/06/2024     C2 K  Hanjie Tan							June 2
     02/06/2024     C2 K  Jiangao Ruan							June 2
     03/06/2024     C2 D  Jiangao Ruan							June 3
     06/06/2024     C2 K  Hanjie Tan							June 6
     09/06/2024     C3 K  Jiangao Ruan							June 9
     11/06/2024     C2 K  Hanjie Tan							June 11
     12/06/2024     C2 K  Jiangao Ruan,	Hanjie Tan					June 12
     13/06/2024     C3 K  Jiangao Ruan,	Hanjie Tan					June 13
     13/06/2024     C2 K  Jiangao Ruan							June 13
     14/06/2024     C2 K  Hanjie Tan							June 14
     15/06/2024     C2 K  Hanjie Tan							June 15
     16/06/2024     C2 K  Hanjie Tan							June 16
     16/06/2024     C2 K  Rafal Biros							June 16
   

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, H1 or H2 for STEREO) and PW for Parker Solar Probe - WISPR, 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. AI scanning during 2022 and 2023 is however likely to have mopped most of them up, however there are non-group comets to find, including some that may be periodic.


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