SOHO Comets 2022

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
4361 05/01/2022     C2 O  Peter Berrett							January 5
4362 11/01/2022     C3 K  Zesheng Yang							January 11
4363 13/01/2022     C3 K  Worachate Boonplod						January 13
4364 13/01/2022     C3 K  Worachate Boonplod						January 13
4365 16/01/2022     C3 K  Worachate Boonplod						January 16
4366 16/01/2022     C3 K  Worachate Boonplod						January 16
4367 17/01/2022     C3 K  Zesheng Yang							January 17
4368 22/01/2022     C3 K  Dmitriy Zhizherunov						January 22
4369 25/01/2022     C3 K  Worachate Boonplod						January 25
4370 25/01/2022     C3 K  Peiyuan Sun							January 25
4371 27/01/2022     C2 Y  Worachate Boonplod						January 27
4372 28/01/2022     C3 K  Worachate Boonplod						January 28
4373 28/01/2022     C2 D  Zesheng Yang							January 28
4374 30/01/2022     C3 K  Worachate Boonplod						January 30
4375 04/02/2022     C3 K  Worachate Boonplod						February 4
4376 05/02/2022     C3 K  Zesheng Yang							February 5
4377 05/02/2022     C2 Y  Zesheng Yang							February 5
4378 07/02/2022     C3 K  Worachate Boonplod						February 7
4379 08/02/2022     C3 K  Zesheng Yang							February 8
4380 10/02/2022     C3 K  Zesheng Yang							February 10
4381 11/02/2022     C2 Y  Worachate Boonplod						February 11
4382 11/02/2022     C3 K  Worachate Boonplod						February 11
4383 12/02/2022     C3 K  Zesheng Yang							February 12
4384 14/02/2022     C3 K  Worachate Boonplod						February 14
4385 14/02/2022     C3 K  Worachate Boonplod						February 14
4386 15/02/2022     C3 K  Peiyuan Sun, Zesheng Yang					February 15
4387 15/02/2022     C3 K  Robert Pickard						February 15
4388 22/02/2022     C2 Y  Worachate Boonplod, Zesheng Yang				February 22
4389 23/02/2022     C3 K  Helio Abreu Neto						February 23
     19/05/2015     C2 K  Robert Pickard						February 25
     13/11/2014     C2 K  Peter Berrett							March 3
     24/11/2017     C2 K  Peter Berrett							March 4
     16/10/2013     C2 O  Peter Berrett							March 5
     04/03/2022     C2 O  Peter Berrett							March 6
     07/03/2022     C3 K  Worachate Boonplod						March 7
     10/03/2022     C3 K  Worachate Boonplod						March 10
     11/03/2022     C3 K  Zesheng Yang							March 11
     12/03/2022     C3 K  Zhijian Xu							March 12
     17/03/2022     C2 K  Zhijian Xu							March 17
     22/03/2022     C2 K  Zhijian Xu							March 22
     23/03/2022     C3 K  Zesheng Yang							March 23
     24/03/2022     C2 O  Zesheng Yang							March 24
     24/03/2022     C2 O  Zesheng Yang							March 24
     24/03/2022     C2 K  Zhijian Xu							March 24
     25/03/2022     C3 K  Michael Biesiada, Peiyuan Sun, Zhijian Xu			March 25
     26/03/2022     C3 K  Zhijian Xu							March 26
     28/03/2022     C2 K  Zhijian Xu							March 28
     29/03/2022     C2 K  Hanjie Tan							March 29
     30/03/2022     C3 K  Hanjie Tan							March 30
     03/04/2022     C2 K  Hanjie Tan							April 3
     05/04/2022     C2 Y  Hanjie Tan							April 5
     07/04/2022     C2 K  Zhijian Xu							April 7
     06/05/2005     C2 K  AI								April 8
     04/11/2016     C2 O  AI								April 8
     15/02/2016     C2 O  Peter Berrett							April 15
     15/04/2022     C2 K  Hanjie Tan							April 15
     24/07/2016     C2 O  Peter Berrett							April 15
     16/04/2022     C2 K  Zhijian Xu							April 16
     18/04/2022     C2 K  Zhijian Xu							April 18
     19/04/2022     C2 K  Rafal Biros, Zhijian Xu					April 19
     20/04/2022     C2 K  Zesheng Yang, Peiyuan Sun					April 20
     20/04/2022     C2 K  Zhijian Xu							April 20
     23/04/2022     C2 K  Zhijian Xu							April 23
     26/04/2022     C3 O  Zhijian Xu							April 26
     05/01/2019     C2 O  Peter Berrett							April 28
     28/04/2022     C2 K  Hanjie Tan							April 28
     05/08/2019     C2 Y  Peter Berrett							April 29
     29/04/2022     C2 K  Hanjie Tan							April 29
     12/05/2014     C2 O  Peter Berrett							May 1
     02/05/2022     C2 Y  Worachate Boonplod						May 2
     02/05/2022     C2 K  Zesheng Yang							May 2
     02/05/2022     C3 K  Zhijian Xu							May 2
     03/05/2022     C2 K  Rafal Biros							May 3
     03/05/2022     C2 K  Zesheng Yang							May 3
     04/05/2022     C3 K  Zhijian Xu							May 4
     04/05/2022     C2 K  Zesheng Yang							May 4
     06/05/2022     C2 K  Peiyuan Sun							May 6
     20/01/2019     C2 Y  Peter Berrett							May 8
     02/01/2022     C2 R  Hanjie Tan							May 8
     10/05/2022     C3 K  Worachate Boonplod						May 10
     12/05/2022     C2 K  Zesheng Yang							May 12
     12/05/2022     C2 K  Hanjie Tan							May 12
     12/05/2022     C2 K  Hanjie Tan							May 12
     13/05/2022     C2 K  Zhijian Xu							May 13
     04/11/2016     C2 O  Hanjie Tan							May 14
     15/05/2022     C2 O  Zhijian Xu							May 15
     16/05/2022     C3 K  Hanjie Tan							May 16
     05/12/2015     C2 D  Hanjie Tan							May 17
     17/05/2022     C2 K  Worachate Boonplod						May 17
     18/05/2022     C3 K  Worachate Boonplod						May 18
     21/05/2022     C2 K  Zesheng Yang							May 21
     21/05/2022     C2 K  Zhijian Xu							May 21
     22/05/2022     C2 K  Hanjie Tan, Zhijian Xu, Zesheng Yang				May 22
     23/05/2022     C3 K  Zesheng Yang							May 23
     26/05/2022     C2 K  Zesheng Yang							May 26
     16/08/2020     C2 O  Hanjie Tan							May 26
     18/03/2018     C2 O  Hanjie Tan							May 27
     29/05/2022     C2 Y  Worachate Boonplod						May 30
     01/06/2022     C2 K  Zesheng Yang							June 1
     01/06/2022     C2 K  Zesheng Yang							June 1
     05/06/2022     C2 K  Worachate Boonplod						June 5
     08/06/2022     C2 K  Zesheng Yang							June 8
     08/06/2022     C2 K  Hanjie Tan							June 8
     10/06/2022     C2 K  Dor Amitay							June 10
     09/08/2011     C2 Y  Hanjie Tan							June 11
     05/09/2020     C2 R  Hanjie Tan							June 11
     08/09/2020     C2 R  Hanjie Tan							June 11
     21/04/2018     C2 K  Hanjie Tan							June 11
     12/06/2022     C2 K  Zesheng Yang							June 12
     12/06/2022     C2 K  Zesheng Yang							June 12
     15/06/2022     C2 K  Hanjie Tan							June 15
     15/06/2022     C2 K  Hanjie Tan							June 15
     18/06/2022     C3 K  Worachate Boonplod						June 18

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:
Helio Abreu Neto - first discovery
AI - two discoveries as part of a project developing detection algorithms

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.  Archival discoveries continued in 2022, helped by the use of AI algorithms for searching.


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