SOHO Comets 2017

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
3258 01/01/2017     C2 Y  Worachate Boonplod						January 1
3259 02/01/2017     C3 K  Peiyuan Sun							January 2
3260 05/01/2017     C2 K  Zhijian Xu							January 5
3261 05/01/2017     C2 K  Worachate Boonplod						January 5
3262 05/01/2017     C3 K  Bo Zhou							January 6
3263 06/01/2017     C3 K  Masanori Uchina						January 6
P    04/01/2017     T1 K  Trygve Prestgard						January 6
P    04/01/2017     T1 K  Trygve Prestgard						January 6
P    05/01/2017     T1 K  Trygve Prestgard						January 8
P    05/01/2017     T1 K  Trygve Prestgard						January 8
75   11/01/2017     T1 K  Trygve Prestgard						January 13
3264 14/01/2017     C2 Y  Masanori Uchina						January 14
76   13/01/2017     T1 K  Trygve Prestgard						January 15
3265 19/01/2017     C3 K  Zhijian Xu							January 19
77   17/01/2017     T1 K  Khadija El Kanbi						January 19
3266 21/01/2017     C3 K  Zhijian Xu							January 21
78   22/01/2017     T1 K  Zhijian Xu							January 25
79   24/01/2017     T1 K  Trygve Prestgard, Khadija El Kanbi				January 26
3267 26/01/2017     C2 K  Zhijian Xu							January 26
P    29/01/2012     T1 K  Trygve Prestgard						January 29
C    31/01/2017     C3 D  Peiyuan Sun							January 31 ?=2000 C4 = 2005 W1 = SOHO 2115
80   28/01/2017     T1 K  Peiyuan Sun							February 1
3268 03/02/2017     C3 K  Zhijian Xu, Sergey Shurpakov					February 3
3269 04/02/2017     C3 K  Worachate Boonplod						February 4
3270 04/02/2017     C3 K  Worachate Boonplod						February 4
3271 07/02/2017     C3 K  Worachate Boonplod						February 7
81   02/02/2017     T1 K  Worachate Boonplod						February 7
82   03/02/2017     T1 K  Zhijian Xu							February 8
83   04/02/2017     T1 K  Zhijian Xu							February 8
3272 12/02/2017     C2 Y  Worachate Boonplod						February 12
84   16/02/2017     T1 K  Worachate Boonplod						February 21
3273 25/02/2017     C3 K  Zhijian Xu							February 25
3274 27/02/2017     C3 K  Zhijian Xu							February 27
3275 01/03/2017     C2 Y  Masanori Uchina						March 1
85   19/02/2017     T1 K  Trygve Prestgard						March 2
3276 02/03/2017     C3 K  Masanori Uchina						March 2
3277 02/03/2017     C3 K  Michal Biesiada						March 2
67   09/02/2008     T1 K  Trygve Prestgard						March 3
3278 04/03/2017     C3 K  Szymon Liwo							March 4
87   01/03/2017     T1 K  Trygve Prestgard						March 6
3279 12/03/2017     C3 K  Worachate Boonplod, Michal Biesiada				March 12
3280 14/03/2017     C3 K  Worachate Boonplod						March 14
3281 14/03/2017     C3 K  Worachate Boonplod						March 14
86   19/02/2017     T1 K  Karl Battams							March 24
3282 26/03/2017     C3 K  Zhijian Xu							March 26
3283 27/03/2017     C3 K  Szymon Liwo							March 27
3284 29/03/2017     C3 K  Zhijian Xu							March 29
3285 02/04/2017     C2 K  Masanori Uchina						April 2
3286 04/04/2017     C3 K  Zhijian Xu							April 4
3287 04/04/2017     C2 K  Masanori Uchina						April 4
3288 07/04/2017     C2 K  Worachate Boonplod						April 7
3289 07/04/2017     C3 K  Worachate Boonplod						April 7
3290 07/04/2017     C3 K  Worachate Boonplod						April 7
3291 07/04/2017     C3 K  Worachate Boonplod						April 7
3292 10/04/2017     C2 K  Masanori Uchina						April 10
3293 11/04/2017     C2 K  Worachate Boonplod						April 11
3294 13/04/2017     C2 K  Masanori Uchina						April 13
3295 14/04/2017     C3 K  Worachate Boonplod						April 14
3296 15/04/2017     C2 K  Masanori Uchina						April 15
3297 16/04/2017     C2 K  Trygve Prestgard, Masanori Uchina				April 16
3298 16/04/2017     C2 K  Zhijian Xu							April 16
3299 19/04/2017     C3 K  Worachate Boonplod						April 19
3300 19/04/2017     C3 K  Worachate Boonplod						April 19
3301 19/04/2017     C2 Y  Worachate Boonplod						April 19
3302 19/04/2017     C3 K  Worachate Boonplod						April 19
3303 21/04/2017     C2 K  Worachate Boonplod						April 21
3304 22/04/2017     C2 K  Worachate Boonplod						April 22
3305 22/04/2017     C3 K  Worachate Boonplod						April 22
3306 24/04/2017     C3 K  Worachate Boonplod						April 24
3307 25/04/2017     C2 K  Worachate Boonplod						April 25
3308 25/04/2017     C3 K  Worachate Boonplod						April 25
3309 27/04/2017     C2 K  Zhijian Xu							April 27
3310 27/04/2017     C3 K  Worachate Boonplod						April 27
3311 28/04/2017     C2 O  Masanori Uchina						April 28
3312 29/04/2017     C2 K  Zhijian Xu							April 29
3313 30/04/2017     C2 K  Szymon Liwo, Zhijian Xu					April 30
3314 30/04/2017     C2 K  Worachate Boonplod						April 30
3315 02/05/2017     C2 K  Worachate Boonplod						May 2
3316 02/05/2017     C3 K  Worachate Boonplod						May 2
3317 04/05/2017     C3 K  Worachate Boonplod						May 4
3318 08/05/2017     C2 K  Worachate Boonplod						May 8
3319 09/05/2017     C2 K  Masanori Uchina						May 9
3320 11/05/2017     C2 K  Worachate Boonplod						May 11
3321 12/05/2017     C2 K  Masanori Uchina						May 12
3322 13/05/2017     C3 K  Masanori Uchina						May 13
3323 13/05/2017     C2 K  Worachate Boonplod						May 13
3324 16/05/2017     C2 K  Worachate Boonplod						May 16
3325 17/05/2017     C3 K  Worachate Boonplod						May 17
3326 18/05/2017     C2 Y  Worachate Boonplod						May 18
3327 20/05/2017     C2 Y  Michal Kusiak							May 20
3328 21/05/2017     C2 Y  Masanori Uchina						May 21
3329 21/05/2017     C2 K  Michal Kusiak							May 21
3330 27/05/2017     C2 K  Michal Kusiak							May 27
3331 28/05/2017     C2 K  Michal Kusiak							May 28
3332 29/05/2017     C2 K  Masanori Uchina						May 29
3333 31/05/2017     C2 K  Worachate Boonplod, Michal Kusiak				May 31
3334 02/06/2017     C2 K  Worachate Boonplod						June 2
3335 02/06/2017     C2 K  Worachate Boonplod						June 2
3336 03/06/2017     C2 K  Michal Kusiak, Peiyuan Sun					June 3
3337 05/06/2017     C3 K  Sergey Shurpakov						June 5
3338 05/06/2017     C3 K  Worachate Boonplod						June 5
3339 06/06/2017     C3 K  Worachate Boonplod						June 6
3340 06/06/2017     C2 K  Worachate Boonplod						June 6
3341 07/06/2017     C2 K  Trygve Prestgard						June 7
3342 07/06/2017     C3 K  Worachate Boonplod						June 7
3343 08/06/2017     C3 K  Trygve Prestgard						June 8
XC88 10/06/2017     C2 K  Worachate Boonplod						June 10
3344 10/06/2017     C2 K  Michal Kusiak							June 10
3345 10/06/2017     C3 K  Worachate Boonplod						June 10
3346 12/06/2017     C2 K  Worachate Boonplod						June 12
3347 13/06/2017     C2 K  Worachate Boonplod						June 13
3348 15/06/2017     C2 K  Worachate Boonplod						June 15
3349 16/06/2017     C2 K  Worachate Boonplod						June 16
3350 18/06/2017     C3 O  Worachate Boonplod						June 18
3351 19/06/2017     C3 Y? Worachate Boonplod						June 19
3352 20/06/2017     C3 K  Worachate Boonplod						June 20
3353 21/06/2017     C2 K  Worachate Boonplod						June 21
3354 23/06/2017     C2 K  Worachate Boonplod, Masanori Uchina				June 23
3355 24/06/2017     C2 K  Worachate Boonplod						June 24
3356 24/06/2017     C2 K  Worachate Boonplod						June 24
3357 28/06/2017     C3 K  Masanori Uchina						June 28
3358 29/06/2017     C2 K  Masanori Uchina						June 29
3359 01/07/2017     C2 Y  Worachate Boonplod						July 1
3360 02/07/2017     C2 K  Worachate Boonplod						July 2
3361 03/07/2017     C3 K  Worachate Boonplod						July 3
3362 05/07/2017     C2 K  Worachate Boonplod						July 5
3363 06/07/2017     C2 K  Masanori Uchina						July 6
3364 08/07/2017     C2 K  Masanori Uchina, Worachate Boonplod				July 8
XC89 09/07/2017     C2 K  Worachate Boonplod						July 9
3365 10/07/2017     C3 K  Worachate Boonplod						July 10
3366 10/07/2017     C2 K  Worachate Boonplod						July 10
3367 10/07/2017     C2 K  Worachate Boonplod						July 10
3368 15/07/2017     C2 Y  Worachate Boonplod						July 15
3369 16/07/2017     C3 K  Salil Mulye							July 16
3370 16/07/2017     C2 Y  Worachate Boonplod						July 16
3371 17/07/2017     C3 K  Worachate Boonplod						July 17
3372 18/07/2017     C2 Y  Worachate Boonplod						July 18
3373 19/07/2017     C3 K  Worachate Boonplod						July 19
3374 18/07/2017     C3 K  Trygve Prestgard						July 19
3375 21/07/2017     C3 K  Worachate Boonplod						July 21
3376 23/07/2017     C3 K  Worachate Boonplod						July 23
3377 24/07/2017     C3 K  Worachate Boonplod						July 24
3378 25/07/2017     C3 K  Zhijian Xu							July 25
3379 30/07/2017     C3 K  Salil Mulye							July 30
3380 01/08/2017     C2 Y  Masanori Uchina						August 1
3381 02/08/2017     C2 Y  Worachate Boonplod						August 2
3382 03/08/2017     C3 K  Worachate Boonplod						August 3
3383 04/08/2017     C3 K  Worachate Boonplod						August 4
3384 05/08/2017     C3 K  Worachate Boonplod						August 5
3385 09/08/2017     C2 Y  Worachate Boonplod						August 9
3386 09/08/2017     C3 K  Worachate Boonplod						August 9
3387 10/08/2017     C3 K  Zhijian Xu							August 10
3388 14/08/2017     C3 K  Worachate Boonplod						August 14
3389 16/08/2017     C3 K  Zhijian Xu							August 16
3390 19/08/2017     C3 K  Worachate Boonplod						August 19
3391 20/08/2017     C3 K  Worachate Boonplod						August 20
3392 20/08/2017     C3 K  Trygve Prestgard						August 20
3393 23/08/2017     C3 K  Hanjie Tan							August 23
3394 24/08/2017     C3 K  Masanori Uchina						August 24
3395 24/08/2017     C2 O  Masanori Uchina						August 24
3396 24/08/2017     C2 Y  Rainer Kracht							August 26
3397 26/08/2017     C2 D  Rainer Kracht							August 26
3398 31/08/2017     C3 K  Hanjie Tan							August 31
3399 02/09/2017     C2 Y  Xavier Leprette, Worachate Boonplod				September 2
3400 02/09/2017     C3 K  Worachate Boonplod						September 2
3401 03/09/2017     C3 K  Worachate Boonplod						September 3
3402 05/09/2017     C3 K  Hanjie Tan							September 5
3414 22/02/2017     C2 Y  Rainer Kracht							September 5
3403 06/09/2017     C3 K  Trygve Prestgard						September 6
  87 21/08/2017     T1 O  Trygve Prestgard						September 6
3404 06/09/2017     C3 K  Zhijian Xu							September 6
3405 09/09/2017     C3 K  Worachate Boonplod						September 9
3406 11/09/2017     C3 K  Worachate Boonplod						September 11
3407 15/09/2017     C3 K  Worachate Boonplod						September 15
3408 18/09/2017     C2 K  Masanori Uchina						September 18
3409 22/09/2017     C3 K  Masanori Uchina						September 22
3410 22/09/2017     C3 K  Worachate Boonplod						September 22
3411 25/09/2017     C3 K  Worachate Boonplod						September 25
3412 26/09/2017     C3 K  Worachate Boonplod						September 26
P    26/09/2017     C3 K  Zheng Cao							September 26
3413 28/09/2017     C3 K  Egor Isaev							September 28
3415 03/10/2017     C3 K  Worachate Boonplod						October 3
3416 04/10/2017     C3 O  Sergey Shurpakov						October 4
3417 05/10/2017     C3 K  Hanjie Tan							October 6
3418 06/10/2017     C3 K  Zhijian Xu							October 6
3419 08/10/2017     C2 K  Masanori Uchina						October 8
3420 08/10/2017     C2 K  Worachate Boonplod						October 8
3421 08/10/2017     C3 K  Worachate Boonplod						October 8
3422 09/10/2017     C3 K  Worachate Boonplod						October 9
3423 09/10/2017     C2 K  Worachate Boonplod						October 9
3424 10/10/2017     C2 K  Hanjie Tan							October 10
3425 11/10/2017     C2 K  Szymon Liwo, Zhijian Xu					October 11
U    15/02/2017     T1 K  Trygve Prestgard						October 12
3426 13/10/2017     C3 K  Hanjie Tan, Worachate Boonplod				October 13
3427 13/10/2017     C3 K  Hanjie Tan							October 13
3428 15/10/2017     C2 K  Zhijian Xu							October 15
3429 16/10/2017     C3 K  Worachate Boonplod						October 16
3430 19/10/2017     C3 K  Worachate Boonplod						October 19
3431 20/10/2017     C3 K  Worachate Boonplod						October 20
3432 21/10/2017     C3 K  Szymon Liwo							October 21
3433 21/10/2017     C3 K  Worachate Boonplod						October 21
3434 24/10/2017     C2 K  Worachate Boonplod						October 24
3435 27/10/2017     C3 O  Trygve Prestgard, Worachate Boonplod				October 27 = 96P/ fragement
3436 26/10/2017     C2 K  Zhijian Xu, Zheng Cao						October 26
3437 26/10/2017     C2 K  Worachate Boonplod						October 26
3438 28/10/2017     C2 K  Masanori Uchina						October 28
3468 14/07/2000     C3 K  Trygve Prestgard						October 28     
3439 29/10/2017     C2 K  Masanori Uchina						October 29
3440 31/10/2017     C3 K  Worachate Boonplod						October 31
3441 02/11/2017     C2 K  Worachate Boonplod						November 2
3442 03/11/2017     C3 K  Worachate Boonplod						November 3
3443 04/11/2017     C2 K  Masanori Uchina						November 4
3444 04/11/2017     C2 K  Worachate Boonplod, Szymon Liwo				November 4
3445 05/11/2017     C2 K  Masanori Uchina						November 5
3446 06/11/2017     C2 K  Worachate Boonplod						November 6
3447 07/11/2017     C2 K  Worachate Boonplod						November 7
3448 08/11/2017     C2 K  Worachate Boonplod						November 8
3449 08/11/2017     C2 K  Hanjie Tan							November 8
3450 10/11/2017     C3 K  Worachate Boonplod						November 10
3451 10/11/2017     C3 K  Worachate Boonplod						November 10
3452 12/11/2017     C2 K  Masanori Uchina						November 12
3453 13/11/2017     C2 K  Szymon Liwo							November 13
3454 13/11/2017     C2 K  Hanjie Tan							November 13
3455 14/11/2017     C3 K  Worachate Boonplod						November 14
3456 15/11/2017     C3 K  Worachate Boonplod						November 15
3457 15/11/2017     C2 K  Szymon Liwo							November 15
3458 16/11/2017     C3 K  Worachate Boonplod						November 16
3459 18/11/2017     C3 K  Worachate Boonplod						November 18
3460 19/11/2017     C2 K  Worachate Boonplod						November 19
3461 21/11/2017     C2 K  Worachate Boonplod						November 21
3462 21/11/2017     C3 K  Worachate Boonplod						November 21
3463 24/11/2017     C3 K  Worachate Boonplod, Sergey Shurpakov				November 24
3464 25/11/2017     C2 K  Worachate Boonplod						November 25
3465 27/11/2017     C3 K  Worachate Boonplod						November 23 
3466 30/11/2017     C2 K  Szymon Liwo							November 30
P    02/12/2017     C3 K  Worachate Boonplod						December 2
P    04/12/2017     C2 K  Worachate Boonplod						December 4
P    05/12/2017     C2 K  Worachate Boonplod						December 5
P    06/12/2017     C2 Y  Zhijian Xu							December 6
P    06/12/2017     C2 K  Masanori Uchina						December 6
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:

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