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
5169 01/01/2025 C3 K Zhijian Xu January 1
5170 03/01/2025 C3 K Jiangao Ruan January 3
5171 13/01/2025 C3 K Jiangao Ruan January 13
C 13/01/2025 C3 K Worachate Boonplod January 13 = 5171
5172 15/01/2025 C3 K Worachate Boonplod January 15
5173 21/01/2025 C3 K Worachate Boonplod January 21
5174 22/01/2025 C3 K Jiangao Ruan January 22
5175 25/01/2025 C3 Y Jiangao Ruan January 25
5176 27/01/2025 C3 K Robert Pickard January 27
01/02/2025 C3 K Jiangao Ruan February 1
07/02/2025 C3 K Worachate Boonplod February 7
08/02/2025 C3 K Robert Pickard February 8
10/02/2025 C3 K Zhijian Xu February 10
11/02/2025 CC K Robert Pickard February 11
11/02/2025 CC K Robert Pickard February 11
11/02/2025 CC K Robert Pickard February 11
14/02/2025 C3 K Jiangao Ruan February 14
15/02/2025 C3 K Jiangao Ruan February 15
16/02/2025 CC K Jiangao Ruan February 16
19/02/2025 CC K Jiangao Ruan February 19
22/02/2025 CC K Robert Pickard February 22
24/02/2025 CC K Robert Pickard February 24
24/02/2025 CC K Robert Pickard February 24
25/02/2025 CC K Robert Pickard February 25
27/09/2024 PS K Peter Berrett February 23
25/02/2025 C2 Y Worachate Boonplod February 25
25/02/2025 CC K Jiangao Ruan February 25
26/02/2025 C3 K Szymon Liwo February 26
06/02/2025 CC K Zhijian Xu February 28
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, CC for CCOR-1) 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 is however likely to have mopped most of them up.