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
4447 13/11/2014     C2 K  Peter Berrett							March 3
4451 24/11/2017     C2 K  Peter Berrett							March 4
4445 16/10/2013     C2 O  Peter Berrett							March 5
4392 04/03/2022     C2 O  Peter Berrett							March 6
4393 07/03/2022     C3 K  Worachate Boonplod						March 7
4394 10/03/2022     C3 K  Worachate Boonplod						March 10
4395 11/03/2022     C3 K  Zesheng Yang							March 11
4396 12/03/2022     C3 K  Zhijian Xu							March 12
4397 17/03/2022     C2 K  Zhijian Xu							March 17
4398 21/03/2022     C3 K  Zhijian Xu							March 21
4399 22/03/2022     C2 K  Zhijian Xu							March 22
4400 23/03/2022     C3 K  Zesheng Yang							March 23
4401 24/03/2022     C2 O  Zesheng Yang							March 24
4402 24/03/2022     C2 O  Zesheng Yang							March 24
4403 24/03/2022     C2 K  Zhijian Xu							March 24
4404 25/03/2022     C3 K  Michael Biesiada, Peiyuan Sun, Zhijian Xu			March 25
4405 26/03/2022     C3 K  Zhijian Xu							March 26
4406 28/03/2022     C2 K  Zhijian Xu							March 28
4407 29/03/2022     C2 K  Hanjie Tan							March 29
4408 30/03/2022     C3 K  Hanjie Tan							March 30
4409 03/04/2022     C2 K  Hanjie Tan							April 3
4410 05/04/2022     C2 Y  Hanjie Tan							April 5
4411 07/04/2022     C2 K  Zesheng Yang, Zhijian Xu					April 7
4390 06/05/2005     C2 K  AI								April 8
4391 04/11/2016     C2 O  AI								April 8
4449 15/02/2016     C2 O  Peter Berrett							April 15
4412 15/04/2022     C2 K  Hanjie Tan							April 15
4450 24/07/2016     C2 O  Peter Berrett							April 15
4413 16/04/2022     C2 K  Zhijian Xu							April 16
4414 18/04/2022     C2 K  Zhijian Xu							April 18
4415 19/04/2022     C2 K  Rafal Biros, Zhijian Xu					April 19
4416 20/04/2022     C2 K  Zesheng Yang, Peiyuan Sun					April 20
4417 20/04/2022     C2 K  Zhijian Xu							April 20
4418 23/04/2022     C2 K  Zhijian Xu							April 23
4419 26/04/2022     C3 O  Zhijian Xu							April 26
4453 05/01/2019     C2 O  Peter Berrett							April 28
4420 28/04/2022     C2 K  Hanjie Tan							April 28
4456 05/08/2019     C2 Y  Peter Berrett							April 29
4421 29/04/2022     C2 K  Hanjie Tan							April 29
4446 12/05/2014     C2 O  Peter Berrett							May 1
4443 12/07/2011     C2 Y  Peter Berrett							May 2
4422 02/05/2022     C2 Y  Worachate Boonplod						May 2
4423 02/05/2022     C2 K  Zesheng Yang							May 2
4424 02/05/2022     C3 K  Zhijian Xu							May 2
4425 03/05/2022     C2 K  Rafal Biros							May 3
4426 03/05/2022     C2 K  Zesheng Yang							May 3
4427 04/05/2022     C3 K  Zhijian Xu							May 4
4428 04/05/2022     C2 K  Zesheng Yang							May 4
4429 06/05/2022     C2 K  Peiyuan Sun							May 6
4454 20/01/2019     C2 Y  Peter Berrett							May 8
4464 02/01/2022     C2 R  Hanjie Tan							May 8 = 2004 B3 = 2009 V10 = 3081
4430 10/05/2022     C3 K  Worachate Boonplod						May 10
4431 12/05/2022     C2 K  Zesheng Yang							May 12
4432 12/05/2022     C2 K  Hanjie Tan							May 12
4433 12/05/2022     C2 K  Hanjie Tan							May 12
UC   13/05/2022     C2 K  Zhijian Xu							May 13
     04/11/2016     C2 O  Hanjie Tan							May 14
C    15/05/2022     C2 O  Zhijian Xu							May 15 = (3200) Phaethon
4434 16/05/2022     C3 K  Hanjie Tan							May 16
4448 05/12/2015     C2 D  Hanjie Tan							May 17
4435 17/05/2022     C2 K  Worachate Boonplod						May 17
4436 18/05/2022     C3 K  Worachate Boonplod						May 18
4437 21/05/2022     C2 K  Zesheng Yang							May 21
4438 21/05/2022     C2 K  Zhijian Xu							May 21
4439 22/05/2022     C2 K  Hanjie Tan, Zhijian Xu, Zesheng Yang				May 22
4440 23/05/2022     C3 K  Zesheng Yang							May 23
4441 26/05/2022     C2 K  Zesheng Yang							May 26
4458 16/08/2020     C2 O  Hanjie Tan							May 26
UC   18/03/2018     C2 O  Hanjie Tan							May 27
4442 29/05/2022     C2 Y  Worachate Boonplod						May 30
4475 01/06/2022     C2 K  Zesheng Yang							June 1
4476 01/06/2022     C2 K  Zesheng Yang							June 1
4477 05/06/2022     C2 K  Worachate Boonplod						June 5
4478 08/06/2022     C2 K  Zesheng Yang							June 8
4479 08/06/2022     C2 K  Hanjie Tan							June 8
C    10/06/2022     C2 K  Dor Amitay							June 10
4480 10/06/2022     C3 K  Jiangao Ruan, Dor Amitay					June 10
4481 10/06/2022     C3 K  Jiangao Ruan							June 10
4444 09/08/2011     C2 Y  Hanjie Tan							June 11
     12/07/2020     C2 Y  Hanjie Tan							June 11
4459 05/09/2020     C2 R  Hanjie Tan							June 11
4460 08/09/2020     C2 R  Hanjie Tan							June 11
4452 21/04/2018     C2 K  Hanjie Tan							June 11
4455 29/04/2020     C2 Y  Hanjie Tan							June 11
4457 11/04/2020     C2 Y  Hanjie Tan							June 11
4482 12/06/2022     C2 K  Zesheng Yang							June 12
4483 12/06/2022     C2 K  Zesheng Yang							June 12
4484 15/06/2022     C2 K  Hanjie Tan							June 15
4485 15/06/2022     C2 K  Hanjie Tan							June 15
4486 18/06/2022     C3 K  Worachate Boonplod						June 18
4462 17/01/2021     C2 O  Qicheng Zhang							June 21 = fragment of 323P/SOHO
4487 23/06/2022     C2 O  Peter Berrett							June 25
4466 13/06/2011     C2 D  Hanjie Tan							June 25
4471 20/02/2018     C2 D  Hanjie Tan							June 25
4472 27/06/2018     C2 D  Hanjie Tan							June 25
4473 06/11/2018     C2 Y  Hanjie Tan							June 25
4474 07/11/2018     C2 O  Hanjie Tan							June 25
4465 24/01/2010     C2 Y  Hanjie Tan							June 25
4467 17/04/2013     C2 K  Hanjie Tan							June 25
4469 12/08/2013     C2 O  Hanjie Tan							June 25
4470 01/12/2013     C2 K  Hanjie Tan							June 25
4468 19/06/2013     C2 Y  Hanjie Tan							June 25
4488 26/06/2022     C2 K  Zesheng Yang							June 26
4489 29/06/2022     C2 K  Jiangao Ruan							June 29
     05/06/2019     C2 K  Jiangao Ruan							July 1 = Possibly already reported
     01/08/1996     C3 K  Jiangao Ruan							July 3
4490 04/07/2022     C3 K  Zesheng Yang							July 4
     30/05/2019     C2 K  Jiangao Ruan							July 4
     04/06/2020     C2 K  Jiangao Ruan							July 5
4491 09/07/2022     C2 K  Hanjie Tan							July 9
4494 11/07/2022     C2 Y  Jiangao Ruan, Wenjie Zhou					July 10
4492 11/07/2022     C3 K  Worachate Boonplod						July 11
4493 11/07/2022     C3 K  Hanjie Tan							July 11
4495 12/07/2022     C3 K  Zhijian Xu							July 12
4496 14/07/2022     C3 K  Hanjie Tan							July 14
4497 15/07/2022     C3 K  Zesheng Yang							July 15
4498 19/07/2022     C3 D  Worachate Boonplod						July 19
4499 19/07/2022     C3 K  Worachate Boonplod						July 19
     11/09/2008     C3 K  Jiangao Ruan							July 21
     25/10/2010     C2 K  Hanjie Tan							July 22
     06/01/2021     C2 O  Hanjie Tan							July 22
     20/01/2021     C2 O  Hanjie Tan							July 22
     27/12/2021     C2 O  Hanjie Tan							July 22
     18/01/2017     C2 Y  Hanjie Tan							July 22
     27/03/2017     C2 Y  Hanjie Tan							July 22
     15/09/2017     C2 O  Hanjie Tan							July 22
     12/12/2017     C2 O  Hanjie Tan							July 22
     26/04/2007     C2 K  Hanjie Tan							July 22
     06/09/2007     C2 K  Hanjie Tan							July 22
4500 22/07/2022     C3 K  Worachate Boonplod						July 22
4501 23/07/2022     C3 K  Zesheng Yang							July 23
     22/04/2006     C2 K  Jiangao Ruan							July 24
     23/06/2006     C2 K  Jiangao Ruan							July 24
4502 26/07/2022     C3 K  Zesheng Yang							July 26
4503 27/07/2022     C2 Y  Zesheng Yang							July 27
     20/04/2018     C2 K  Zhuoyang Chen							July 28
4504 29/07/2022     C3 K  Worachate Boonplod						July 29
4505 30/07/2022     C3 K  Jiangao Ruan, Wenjie Zhou					July 30
4506 31/07/2022     C3 K  Zesheng Yang							July 31
     12/11/2008     C2 K  Jiangao Ruan							August 3
4507 03/08/2022     C3 K  Shaoxiong Gu							August 3
4508 05/08/2022     C3 K  Zesheng Yang							August 5
4509 05/08/2022     C3 K  Rafal Biros							August 5
     17/07/2012     C2 Y  Hanjie Tan							August 6
     05/03/2014     C2 R2 Hanjie Tan							August 6
     07/05/2014     C2 O  Hanjie Tan							August 6
     07/03/2014     C2 R2 Hanjie Tan							August 6
     17/01/2012     C2 O  Hanjie Tan							August 6
     06/06/2012     C2 O  Hanjie Tan							August 7
     08/06/2014     C2 O  Hanjie Tan							August 7
4510 08/08/2022     C2 Y  Zhuoyang Chen							August 8
     21/04/2009     C2 K  Jiangao Ruan							August 9
     10/02/2014     C2 O  Hanjie Tan							August 9
     17/04/2010     C2 K  Jiangao Ruan							August 9
     19/06/2010     C2 K  Jiangao Ruan							August 10
     13/05/2016     C2 K  Hanjie Tan							August 11
     30/05/2016     C2 O  Hanjie Tan							August 11
     01/08/2016     C2 Y  Hanjie Tan							August 11
4511 11/08/2022     C3 K  Zesheng Yang							August 11
4512 14/08/2022     C2 O  Hanjie Tan							August 15
     04/05/2011     C2 K  Jiangao Ruan							August 16
4513 17/08/2022     C3 K  Trygve Prestgard						August 17
     03/06/2011     C2 K  Jiangao Ruan							August 19
     25/10/2011     C2 K  Jiangao Ruan							August 22
4514 22/08/2022     C3 K  Zesheng Yang							August 22
     18/11/2011     C2 K  Jiangao Ruan							August 22
4515 23/08/2022     C2 O  Zhijian Xu							August 23
     03/10/2007     C2 K  Jiangao Ruan							August 25
4516 26/08/2022     C3 K  Worachate Boonplod						August 26
4517 27/08/2022     C3 K  Zesheng Yang							August 27
     08/05/1999     C2 K  Jiangao Ruan							August 29
     24/05/1999     C2 K  Jiangao Ruan							August 29
4518 29/08/2022     C3 K  Zesheng Yang							August 29
     01/08/1999     C2 O  Zhuoyang Chen							August 30
     07/10/1999     C2 K  Jiangao Ruan							August 30
     17/07/2005     C2 D  Hanjie Tan							August 30
     30/08/2022     C3 K  Kenichi Usuki							August 30
     09/10/1999     C2 K  Jiangao Ruan							August 31
     09/10/1999     C2 K  Jiangao Ruan							August 31
     14/10/1999     C2 K  Jiangao Ruan							August 31
     22/10/1999     C2 K  Jiangao Ruan							August 31
4519 31/08/2022     C3 K  Zesheng Yang							August 31
     25/10/1999     C2 K  Jiangao Ruan							August 31
     29/10/1999     C2 K  Jiangao Ruan							August 31
     21/12/1999     C2 K  Hanjie Tan							September 1
     29/04/1997     C2 K  Zesheng Yang							September 2
     20/05/1997     C2 K  Zesheng Yang							September 2
     31/05/1997     C2 K  Zesheng Yang							September 2
     07/11/1998     C2 K  Jiangao Ruan							September 2
     03/09/2022     C3 K  Zesheng Yang, Hanjie Tan					September 3
     28/11/1998     C2 K  Jiangao Ruan							September 3
     06/12/1998     C2 K  Jiangao Ruan							September 3
     08/06/1997     C2 K  Zesheng Yang							September 3
     06/06/1998     C2 K  Jiangao Ruan							September 3
     28/04/1998     C2 K  Hanjie Tan							September 3
     28/04/1998     C2 K  Hanjie Tan							September 3
     07/05/1998     C2 K  Hanjie Tan							September 3
     18/06/1998     C2 K  Jiangao Ruan							September 3
     08/12/1997     C2 K  Hanjie Tan							September 3
     25/10/1997     C2 K  Jiangao Ruan							September 4
     26/10/1997     C2 K  Jiangao Ruan							September 4
     13/06/1998     C2 K  Jiangao Ruan							September 4
     11/06/1997     C2 K  Zesheng Yang							September 4
     12/10/1997     C2 K  Zesheng Yang							September 4
     01/11/1997     C2 K  Jiangao Ruan							September 4
     18/12/1996     C2 K  Zesheng Yang							September 5
     03/09/2022     C2 Y  Zhuoyang Chen							September 5
     16/04/1997     C2 K  Zesheng Yang							September 5
     09/03/1997     C2 K  Hanjie Tan							September 5
     09/10/2000     C2 K  Zhuoyang Chen							September 6
     23/11/2012     C2 K  Wenjie Zhou							September 6
     10/06/2000     C2 K  Zhuoyang Chen							September 8
     31/03/1999     C2 K  Jiangao Ruan							September 9
     06/04/1996     C2 K  Zesheng Yang							September 9
     07/04/1996     C2 K  Zesheng Yang							September 9
     10/04/2000     C2 K  Zhuoyang Chen							September 9
     10/09/2022     C3 K  Jiangao Ruan							September 10
     12/09/2022     C3 K  Zesheng Yang, Shaoxiong Gu					September 12
     18/09/2022     C3 K  Worachate Boonplod						September 18
     03/05/2001     C2 K  Jiangao Ruan							September 19
     29/12/1999     C2 K  Jiangao Ruan							September 19
     20/09/2022     C2 Y  Worachate Boonplod						September 20
     21/09/2022     C3 K  Worachate Boonplod						September 21
     18/05/2003     C2 K  Wenjie Zhou							September 25
     25/09/2022     C3 K  Zesheng Yang							September 25
     08/10/2002     C2 K  Zhuoyang Chen							September 26
     09/06/2001     C2 K  Jiangao Ruan							September 29
     15/09/2002     C2 R  Zhuoyang Chen							September 29
     01/10/2003     C2 K  Jiangao Ruan							September 30
     03/10/2003     C2 K  Jiangao Ruan							September 30
     13/10/2001     C2 K  Jiangao Ruan							October 1
     09/11/2003     C2 K  Jiangao Ruan							October 2
     07/12/2003     C2 K  Jiangao Ruan							October 3
    
     
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 by Daniel Parrott, Selim Seferbekov, John Gardner, Victor Dumov, Roman Solovyev, and Dmitrii Khrustalev
Qicheng Zhang - first discovery
Worachate Boonplod - SOHO 4500
Shaoxiong Gu - third discovery, after a gap of six years
Zhuoyang Chen - first discovery

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 dramatically increased in 2022, helped by the use of AI algorithms for searching.


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