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
2218 01/01/2012 C2 K Szymon Liwo Jan 01
2219 01/01/2012 C3 K Szymon Liwo Jan 01
2220 06/01/2012 C2 Y Rob Matson Jan 06
2221 09/01/2012 C3 K Sergei Schmalz Jan 09
2222 10/01/2012 C3 K Sergei Schmalz Jan 10
2223 15/01/2012 C3 K Bo Zhou Jan 15
2224 17/01/2012 C3 K Bo Zhou Jan 17
2225 18/01/2012 C2 R Sergei Schmalz Jan 18
42 17/01/2012 A3 H1 O Alan Watson Jan 19
2226 26/01/2012 C3 K Szymon Liwo Jan 26
2227 26/01/2012 C3 K Szymon Liwo Jan 26
2228 28/01/2012 C3 K Krzysztof Kida (1) Jan 28
2229 28/01/2012 C3 K Masanori Uchina, Sergei Schmalz Jan 29
2230 29/01/2012 C3 K Zhijian Xu Jan 29
2231 30/01/2012 C2 Y Zhijian Xu Jan 30
2232 31/01/2012 C3 K Bo Zhou Jan 31
2233 31/01/2012 C3 K Bo Zhou Jan 31
2234 04/02/2012 C3 K Masanori Uchina, Zhijian Xu Feb 04
2235 04/02/2012 C2 Y Sergei Schmalz Feb 04
2236 04/02/2012 C3 K Sergei Schmalz Feb 04
2237 06/02/2012 C3 K Sergei Schmalz Feb 06
2238 09/02/2012 C3 K Zhijian Xu, Sergei Schmalz Feb 09
2239 11/02/2012 C2 Y Szymon Liwo Feb 11
2240 14/02/2012 C3 K Krzysztof Kida (2) Feb 14
2241 19/02/2012 C3 K Masanori Uchina Feb 19
2242 21/02/2012 C3 K Sergei Schmalz Feb 22
2243 25/02/2012 C3 K Krzysztof Kida (3) Feb 25
2244 28/02/2012 C3 K Bo Zhou Feb 28
2245 28/02/2012 C3 K Zhijian Xu Feb 28
2246 28/02/2012 C3 K Bo Zhou Feb 28
P 28/02/2012 C3 K Szymon Liwo, Krzysztof Kida (4) Feb 28
2247 29/02/2012 C3 Y Krzysztof Kida (5) Feb 29
2248 04/03/2012 C3 K Sergey Shurpakov Mar 04
2257 06/03/2012 E2 SW K Vladimir Bezugly Mar 08
2249 11/03/2012 C2 K Bo Zhou Mar 11
2250 12/03/2012 C3 K Krzysztof Kida (6), Sergei Schmalz Mar 12
2251 15/03/2012 C2 Y Bo Zhou Mar 15
2252 17/03/2012 C2 O Zhijian Xu Mar 17
2253 17/03/2012 C2 O Zhijian Xu Mar 17
2254 22/03/2012 C3 D Bo Zhou Mar 22
2255 25/03/2012 C3 K Pedro Maysonet (1) Mar 25
2256 30/03/2012 C3 K Alan Watson Mar 30
P 31/03/2012 C3 K Sergey Shurpakov Mar 31
2258 03/04/2012 C2 K Marek Kaluzny Apr 03
2259 05/04/2012 C2 Y Sergei Schmalz, S Liwo, K Kida Apr 05
2260 08/04/2012 C2 K Bo Zhou Apr 08
2261 10/04/2012 C2 D Szymon Liwo Apr 10
2262 10/04/2012 C2 K Marek Kaluzny Apr 10
2263 13/04/2012 C2 D Sergei Schmalz, Krzysztof Kida Apr 13
2264 13/04/2012 C2 K Bo Zhou Apr 13
2265 15/04/2012 C2 Y Krzysztof Kida Apr 15
2266 16/04/2012 C2 K Sergei Schmalz Apr 16
2267 16/04/2012 C2 K Sergei Schmalz Apr 17
2268 17/04/2012 C2 Y Sergei Schmalz Apr 18
2269 18/04/2012 C2 K Sergei Schmalz Apr 18
2270 18/04/2012 C3 K Sergei Schmalz Apr 19
2271 19/04/2012 C2 K Sergei Schmalz Apr 19
2272 20/04/2012 C2 K Sergei Schmalz Apr 20
2273 22/04/2012 C3 K Sergei Schmalz Apr 22
2274 22/04/2012 C2 K S Liwo, K Kida, R Reszelewski Apr 22
2275 23/04/2012 C2 D Sergei Schmalz Apr 23
2291 23/04/2012 C3 O Bo Zhou Apr 23
2276 27/04/2012 C2 K Masanori Uchina Apr 27
2277 26/04/2012 C2 K Sergei Schmalz Apr 28
2278 28/04/2012 C2 K Sergei Schmalz, Szymon Liwo Apr 28
2279 28/04/2012 C2 K Sergei Schmalz Apr 28
2438 28/04/2012 C3 O Bo Zhou Apr 28 It is not (3200) Phaethon
2280 29/04/2012 C2 K Sergei Schmalz Apr 29
2281 30/04/2012 C2 K Zhijian Xu Apr 30
2282 01/05/2012 C2 K Sergei Schmalz, Krzysztof Kida May 01
2283 01/05/2012 C2 D Zhijian Xu May 01
2284 12/05/2012 C3 K Salil Mulye, S Schmalz, S Liwo May 12
2285 14/05/2012 C2 K Rob Matson May 14
2286 15/05/2012 C2 K M Uchina, S Liwo, R Reszelewski May 15
2287 15/05/2012 C3 K Salil Mulye May 15
2288 16/05/2012 C2 K Bo Zhou May 16
2289 16/05/2012 C2 K Masanori Uchina May 16
2290 17/05/2012 C2 K Krzysztof Kida May 17
2292 18/05/2012 C2 K Bo Zhou May 18 Also C3
2293 18/05/2012 C2 K Krzysztof Kida May 18
2294 20/05/2012 C2 K Bo Zhou May 21
2295 25/05/2012 C3 D Bo Zhou May 25
2296 24/05/2012 C2 K Sergei Schmalz May 25
2297 26/05/2012 C3 K Bo Zhou May 26
2298 26/05/2012 C2 K Hanjie Tan May 26
2299 27/05/2012 C2 K Sergei Schmalz May 27
2300 29/05/2012 C3 K Zhijian Xu May 29
2301 27/05/2012 C2 K Bo Zhou May 30
2302 02/06/2012 C3 K Sergei Schmalz Jun 02
2303 02/06/2012 C2 K Sergei Schmalz Jun 02
2304 06/06/2012 C3 K Bo Zhou Jun 06
2305 06/06/2012 C2 K Krzysztof Kida Jun 06
2306 07/06/2012 C3 K Sergei Schmalz Jun 07
2307 07/06/2012 C2 K Bo Zhou Jun 07
2308 08/06/2012 C2 K Zhijian Xu Jun 08
2309 08/06/2012 C2 K Azusa Nakano Jun 08
2310 09/06/2012 C3 K Bo Zhou Jun 09
2311 09/06/2012 C3 K Szymon Liwo Jun 09
2312 10/06/2012 C2 K Sergei Schmalz Jun 10
2313 10/06/2012 C3 K Bo Zhou Jun 11
2314 13/06/2012 C2 K Krzysztof Kida Jun 13
2315 13/06/2012 C3 K Masanori Uchina Jun 13
2316 13/06/2012 C2 K Sergei Schmalz Jun 13
2324 14/06/2012 C2 K Sergei Schmalz Jun 14
2317 16/06/2012 C2 K Sergei Schmalz Jun 16
P 16/06/2012 C2 K Sergei Schmalz Jun 16
2318 23/06/2012 C2 K Krzysztof Kida, Sergei Schmalz Jun 23
2319 23/06/2012 C2 K Sergei Schmalz Jun 23
2320 24/06/2012 C2 K Zhijian Xu, Sergei Schmalz Jun 24
2321 24/06/2012 C2 K Zhijian Xu Jun 24
2322 26/06/2012 C3 K Sergey Shurpakov Jun 26
2323 27/06/2012 C2 K Sergei Schmalz Jun 27
30/06/2012 M2 C2 O Rainer Kracht Jun 30 = 1997 J6 = 2001 D1 = 2004 X7 = 2008 S2
3011 02/07/2012 C2 K Sergey Shurpakov Jul 02 was XC82
2325 03/07/2012 C2 K Sergei Schmalz Jul 03
2326 04/07/2012 C3 K Sergei Schmalz Jul 04
2327 07/07/2012 C3 K Sergei Schmalz, Masanori Uchina Jul 07
2328 08/07/2012 C3 K Zhijian Xu Jul 08
P 09/07/2012 C3 K Sergei Schmalz Jul 09
2329 11/07/2012 C3 K Zhijian Xu Jul 11
P 12/07/2012 C3 K Zhijian Xu Jul 12
P 13/07/2012 C3 K Bo Zhou Jul 13
2330 13/07/2012 C3 K Krzysztof Kida Jul 13
2331 14/07/2012 C3 K S Schmalz, K Kida, P Sun Jul 14
2332 15/07/2012 96B C2 Y Liang Liu Jul 15 = 96P/Machholz fragment
2333 15/07/2012 N1 C2 Y Prafull Sharma Jul 15 = 96P/Machholz fragment = 96P/C
XC83 15/07/2012 C2 K? Sergei Schmalz Jul 16
2334 19/07/2012 C3 K Pedro Maysonet Jul 19
2335 19/07/2012 C3 K Salil Mulye Jul 19
2336 21/07/2012 C2 Y Peiyuan Sun Jul 21
2337 21/07/2012 C3 K Pedro Maysonet Jul 21
2338 25/07/2012 C3 K Peiyuan Sun Jul 25
2339 28/07/2012 C3 K Sergei Schmalz Jul 28
2340 29/07/2012 C3 K Zhijian Xu, Sergei Schmalz Jul 29
2341 01/08/2012 C2 Y Zhijian Xu Aug 01
2342 01/08/2012 C3 K Zhijian Xu Aug 01
2343 01/08/2012 C2 O Zhijian Xu Aug 01
2344 02/08/2012 C3 K Sergei Schmalz Aug 02
2345 07/08/2012 C3 K Bo Zhou Aug 07
2346 07/08/2012 C3 K Bo Zhou Aug 07
2347 12/08/2012 C3 K Sergei Schmalz Aug 12
2348 13/08/2012 C3 K Zhijian Xu Aug 13
2349 14/08/2012 C2 Y Sergei Schmalz, Tsumugi Kotobuki (1) Aug 14
2350 18/08/2012 C3 K Peiyuan Sun Aug 18
2351 19/08/2012 C3 K Tsumugi Kotobuki, Sergei Schmalz Aug 19
20/08/2012 Q2 C2 O Peiyuan Sun Aug 20 = 1999 X3 = 2004 E2 = 2008 K10
2352 20/08/2012 C3 K Szymon Liwo Aug 20
2353 20/08/2012 C3 K Sergei Schmalz Aug 20
2354 21/08/2012 C3 K Sergei Schmalz Aug 21
XC84 13/05/2004 C2 R Bo Zhou Aug 28
2355 31/08/2012 C2 Y Zhijian Xu, Szymon Liwo, K Kida Aug 31
2356 06/09/2012 C3 K Sergei Schmalz Sep 06
2357 09/09/2012 C3 K Zhijian Xu Sep 09
2358 11/09/2012 C2 R Pedro Maysonet Sep 11
2359 17/09/2012 C3 K Zhijian Xu Sep 17
2360 17/09/2012 C3 K Zhijian Xu Sep 17
2361 17/09/2012 C3 K Zhijian Xu Sep 17
2362 18/09/2012 C3 K Zhijian Xu Sep 18
2363 18/09/2012 C2 Y Zhijian Xu Sep 18
2364 18/09/2012 C3 K Sergey Shurpakov Sep 18
2365 18/09/2012 C3 K Bo Zhou Sep 18
2366 19/09/2012 C3 K Zhijian Xu Sep 19
2367 19/09/2012 C3 K Liang Liu Sep 19
2368 20/09/2012 C3 K Zhijian Xu Sep 20
54 21/09/2012 H1A K Alan Watson Sep 23
55 22/09/2012 H1A K Alan Watson Sep 24
2369 28/09/2012 C3 K Zhijian Xu Sep 28
2370 29/09/2012 C3 K Zhijian Xu Sep 29
2371 01/10/2012 C3 K Sergey Shurpakov Oct 01
2372 03/10/2012 C3 K Krzysztof Kida Oct 03
2373 03/10/2012 C3 K Zhijian Xu Oct 03
2374 05/10/2012 C3 K Masanori Uchina Oct 05
2375 12/10/2012 C3 K Zhijian Xu Oct 12
2376 13/10/2012 C3 K Trygve Prestgard Oct 13
2377 13/10/2012 C3 K Peiyuan Sun Oct 13
2378 13/10/2012 C2 O Hanjie Tan Oct 14
2379 21/10/2012 C3 K Zhijian Xu Oct 21
2380 21/10/2012 C2 K Masanori Uchina Oct 22
2381 22/10/2012 C2 K Masanori Uchina Oct 22
2382 23/10/2012 C3 K Wenjie Gu Oct 23
2383 23/10/2012 C2 K Liang Liu, Peiyuan Sun Oct 23
2384 27/10/2012 C2 K Peiyuan Sun Oct 27
2385 29/10/2012 C2 K Trygve Prestgard Oct 29
2386 29/10/2012 C2 Y Zhijian Xu Oct 29
2387 30/10/2012 U3 C3 K Szymon Liwo, K Kida, Zhijian Xu Oct 30 Mistakenly named STEREO on MPEC
2388 03/11/2012 C3 K Szymon Liwo Nov 03
2389 08/11/2012 C3 K Krzysztof Kida, Wenjie Gu Nov 08
2390 12/11/2012 C2 K Karl Battams Nov 12
2391 12/11/2012 C2 K Karl Battams Nov 12
2392 13/11/2012 C2 K Masanori Uchina Nov 13
2393 13/11/2012 C3 K Masanori Uchina Nov 13
2394 14/11/2012 C3 K Szymon Liwo, K Kida, Zhijian Xu Nov 14
2395 15/11/2012 C2 K Szymon Liwo Nov 15
2396 16/11/2012 C2 K Krzysztof Kida Nov 16
2397 16/11/2012 C2 K Zhijian Xu Nov 16
U 17/11/2012 C2 R Pedro Maysonet Nov 17 = Mercury
2398 18/11/2012 C2 K Zhijian Xu Nov 18
2399 18/11/2012 C2 K Szymon Liwo Nov 18
2400 19/11/2012 C2 O Krzysztof Kida Nov 19
2401 21/11/2012 C2 K Zhijian Xu, Krzysztof Kida, Wenjie Gu Nov 21
2402 24/11/2012 C2 K Masanori Uchina Nov 24
2403 25/11/2012 C2 K Zhijian Xu Nov 25
2404 26/11/2012 C3 K Wenjie Gu Nov 26
2405 26/11/2012 C2 K Masanori Uchina Nov 26
2406 26/11/2012 C3 K Zhijian Xu Nov 27
2407 28/11/2012 C2 K Zhijian Xu Nov 28
2408 28/11/2012 C3 K Szymon Liwo, Krzysztof Kida Nov 28
U 29/11/2012 C3 O Bo Zhou Nov 29
2409 07/11/2012 V4 SW O Rob Matson Nov 29 = 273P/Pons-Gambart
2410 02/12/2012 C3 K Zhijian Xu Dec 02
U 02/12/2012 C3 K Bo Zhou Dec 02
2411 03/12/2012 C2 K Szymon Liwo Dec 03
2412 04/12/2012 C2 K Masanori Uchina Dec 05
2413 05/12/2012 C3 K Szymon Liwo Dec 05
2414 07/12/2012 C2 K Bo Zhou Dec 07
2415 08/12/2012 C2 Y Zhijian Xu Dec 08
2416 13/12/2012 C2 K Masanori Uchina Dec 14
XC85 14/12/2012 C2 K Masanori Uchina Dec 14
2417 16/12/2012 C2 K Zhijian Xu Dec 16
2418 15/12/2012 C2 K Masanori Uchina Dec 16
2419 16/12/2012 C2 K Masanori Uchina Dec 16
2420 16/12/2012 C2 K Masanori Uchina Dec 16
2421 17/12/2012 C2 Y Zhijian Xu Dec 17
2422 16/12/2012 C2 K Zhijian Xu Dec 17
2423 17/12/2012 C2 K Zhijian Xu, Krzysztof Kida Dec 17
2424 18/12/2012 C2 K Szymon Liwo, Bo Zhou Dec 18
2425 18/12/2012 C2 K Bo Zhou Dec 18
2426 20/12/2012 C2 K Zhijian Xu Dec 20
2427 21/12/2012 C2 K Peiyuan Sun Dec 22
2428 21/12/2012 C2 Y Zhijian Xu Dec 22
2429 22/12/2012 C3 K Masanori Uchina Dec 22
2430 23/12/2012 C2 K Zhijian Xu Dec 23
2431 23/12/2012 C3 K Masanori Uchina Dec 23
2432 27/12/2012 C3 K Zhijian Xu Dec 27
2433 27/12/2012 C3 K Zhijian Xu Dec 27
2434 27/12/2012 C2 K Zhijian Xu Dec 27
2439 27/12/2012 C2 K Bo Zhou Dec 27
2435 29/12/2012 C2 K Szymon Liwo Dec 29
2436 29/12/2012 C3 O Sergey Shurpakov Dec 29
2437 31/12/2012 C3 K Masanori Uchina, Bo Zhou Dec 31
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. Man-To Hui has a site listing SOHO comet discoverers though this was down when checked on 2012 June 7. This gives Bo Zhou as the leading discoverer.
Official milestones:
Krzysztof Kida (Poland) 1st discovery
Liang Liu (China) 1st discovery
Prafull Sharma (India) 1st discovery, age 16
Zhijian Xu 100th 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.
Published by Jonathan Shanklin. Jon Shanklin - jds@ast.cam.ac.uk