SOHO and STEREO Comets 2015

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
2861 04/01/2015     C2 K  Sergei Schmalz						January 4
2862 18/01/2015     C3 K  Worachate Boonplod						January 18
2863 21/01/2015     C3 O  Worachate Boonplod						January 21
2864 22/01/2015     C3 K  Zhijian Xu							January 22
2865 25/01/2015     C3 K  Worachate Boonplod						January 25
2866 26/01/2015     C2 Y  Worachate Boonplod						January 26
2868 31/01/2015     C2 Y  Zhijian Xu							January 31
2867 31/01/2015     C3 K  Szymon Liwo							January 31
2869 08/02/2015     C3 K  Trygve Prestgard						February 8
2870 09/02/2015     C3 K  Worachate Boonplod						February 9
2871 10/02/2015     C3 K  Worachate Boonplod						February 10
2872 12/02/2015     C3 K  Peiyuan Sun							February 12
2873 14/02/2015     C3 K  Szymon Liwo							February 14
2874 18/02/2015     C3 K  Masanori Uchina						February 18
2875 18/02/2015 D1  C3 O  Worachate Boonplod						February 18
2876 18/02/2015     C3 K  Trygve Prestgard						February 18
2877 21/02/2015     C3 K  Trygve Prestgard						February 21
2878 22/02/2015     C3 K  Worachate Boonplod						February 22
2879 23/02/2015     C3 K  Szymon Liwo							February 23
2880 23/02/2015     C3 K  Worachate Boonplod, Szymon Liwo				February 23
2885 15/02/2015 C2  SW O  Rob Matson, Michael Mattiazzo, Vladimir Bezugly		February 23
2881 24/02/2015     C3 K  Worachate Boonplod						February 24
2882 26/02/2015     C3 K  Hanjie Tan							February 26
2883 27/02/2015     C3 K  Zesheng Yang (1), Peiyuan Sun					February 27
2884 01/03/2015     C3 Y  Worachate Boonplod						March 1
2886 05/03/2015     C2 Y  Worachate Boonplod, Peiyuan Sun, Szymon Liwo			March 5
2887 05/03/2015     C2 Y  Szymon Liwo							March 5
2888 07/03/2015     C3 K  Peiyuan Sun, Worachate Boonplod, Q.Zheng, Zhijian Xu		March 7
2889 08/03/2015     C3 K  Worachate Boonplod						March 9
2890 11/03/2015     C2 O  Karl Battams							March 13
2891 11/03/2015     C2 O  Karl Battams							March 13
2892 05/03/2015 F3  SW O  Rob Matson, Vladimir Bezugly, Michael Mattiazzo		March 21
2893 19/03/2015     C3 K  Worachate Boonplod						March 19
2894 20/03/2015     C3 K  Worachate Boonplod						March 20
2895 24/03/2015     C3 K  Worachate Boonplod						March 24
2896 25/03/2015     C3 K  Bo Zhou							March 25
2897 28/03/2015     C3 K  Szymon Liwo							March 28
2898 28/03/2015     C3 K  Bo Zhou							March 28
2899 30/03/2015     C2 K  Trygve Prestgard						March 30
2901 28/03/2015 F5  SW O  Szymon Liwo, Worachate Boonplod, Michael Mattiazzo		April 1	also independently Xing Gao, Guoyou Sun
2900 31/03/2015     C3 K  Bo Zhou							April 1
2902 04/04/2015     C2 Y  Worachate Boonplod						April 4
2903 05/04/2015     C3 K  Zhijian Xu							April 5
2904 05/04/2015     C2 K  Zhijian Xu							April 5
2905 05/04/2015     C3 K  Worachate Boonplod						April 6
2906 06/04/2015     C2 K  Zhijian Xu							April 6
2907 06/04/2015     C2 K  Worachate Boonplod						April 6
2908 07/04/2015     C2 K  Bo Zhou							April 7
2909 07/04/2015     C2 O  Worachate Boonplod, Szymon Liwo, Zhijian Xu			April 7
2910 08/04/2015     C3 K  Worachate Boonplod						April 8
2911 09/04/2015     C2 Y  Zhijian Xu, Worachate Boonplod				April 9
2912 09/04/2015     C2 K  Worachate Boonplod						April 9
2913 09/04/2015     C2 K  Trygve Prestgard						April 10
2914 11/04/2015     C3 K  Worachate Boonplod						April 11
2915 12/04/2015     C3 K  Zhijian Xu							April 12
2916 12/04/2015     C2 K  Worachate Boonplod, Salil Mulye				April 12
2917 12/04/2015     C3 K  Zhijian Xu							April 12
2918 13/04/2015     C2 K  Bo Zhou							April 13
2919 14/04/2015     C3 K  Worachate Boonplod						April 14
2920 15/04/2015     C2 K  Worachate Boonplod						April 15
2921 15/04/2015     C2 K  Trygve Prestgard						April 15
2922 17/04/2015     C2 Y  Szymon Liwo							April 18
2923 17/04/2015     C2 K  Trygve Prestgard						April 18
2924 20/04/2015     C2 K  Worachate Boonplod						April 20
2925 21/04/2015     C2 K  Bo Zhou							April 21
2926 25/04/2015     C2 K  Worachate Boonplod						April 25
2927 27/04/2015     C2 Y  Worachate Boonplod						April 27
2928 28/04/2015     C2 K  Szymon Liwo							April 28
2929 28/04/2015     C2 K  Worachate Boonplod						April 28
2930 29/04/2015     C2 K  Worachate Boonplod						April 29
2931 29/04/2015     C2 K  Worachate Boonplod						April 29
2932 29/04/2015     C2 K  Worachate Boonplod						April 30
2933 30/04/2015     C2 K  Zhijian Xu							April 30
XC86 30/04/2015     C2 K  Bo Zhou							April 30
2934 21/03/2001     C3 K  Michael Oates, Xavier Leprette				2001 March 21
2935 08/10/2012     C2 K  Trygve Prestgard						Email
2936 16/10/2012     C2 K  Trygve Prestgard						Email
2937 06/04/2012     C2 K  Trygve Prestgard						Email
2938 20/02/2015     C3 K  Trygve Prestgard						Email
2939 02/05/2015     C2 K  Worachate Boonplod						May 2
2940 04/05/2015     C3 K  Masanori Uchina						May 4
2941 07/05/2015     C2 Y  Jiangao Ruan							May 7
2942 07/05/2015     C3 O  Zesheng Yang							May 8
2943 09/05/2015     C3 K  Bo Zhou							May 9
2944 16/05/2015     C2 K  Zhijian Xu							May 16
2945 19/05/2015     C2 K  Worachate Boonplod						May 19
2946 20/05/2015     C3 K  Worachate Boonplod						May 20
2947 20/05/2015     C2 K  Jiangao Ruan							May 20
2948 21/05/2015     C3 K  Worachate Boonplod						May 21
2949 21/05/2015     C3 K  Worachate Boonplod						May 21
2950 23/05/2015     C2 K  Zhijian Xu							May 23
2951 23/05/2015     C2 K  Worachate Boonplod						May 23
2952 24/05/2015     C2 Y  Worachate Boonplod						May 24
2953 25/05/2015     C2 K  Bo Zhou							May 26
2954 27/05/2015     C2 K  Worachate Boonplod						May 27
2955 27/05/2015     C2 K  Worachate Boonplod						May 27
2956 28/05/2015     C2 K  Worachate Boonplod						May 28
2957 31/05/2015     C2 K  Masanori Uchina						May 31
2958 01/06/2015     C2 Y  Worachate Boonplod						June 2
XC87 03/06/2015     C2 O  Worachate Boonplod						June 3
2959 03/06/2015     C3 O  Bo Zhou							June 3
2960 04/06/2015     C2 K  Worachate Boonplod						June 5
2961 09/06/2015     C2 K  Zhijian Xu							June 9
2962 08/06/2015     C2 K  Trygve Prestgard						June 9
2963 13/06/2015     C2 K  Worachate Boonplod						June 13
2964 15/06/2015     C2 K  Bo Zhou							June 15
2965 18/06/2015     C2 K  Zhijian Xu							June 18
2966 20/06/2015     C2 K  Bo Zhou							June 20
2968 21/06/2015     C2 K  Michele Mazzucato						June 21
2967 21/06/2015     C2 K  Worachate Boonplod						June 21
2969 24/06/2015     C3 K  Masanori Uchina						June 24
2970 24/06/2015     C2 K  Bo Zhou							June 25
2971 25/06/2015     C2 K  Masanori Uchina						June 25
2972 26/06/2015     C2 K  Worachate Boonplod						June 26
2973 26/06/2015     C3 K  Worachate Boonplod						June 26
2974 26/06/2015     C2 Y  Worachate Boonplod						June 26
2975 25/06/2015     C2 K  Simone Renai (1)						June 27
2976 27/06/2015     C2 K  Zhijian Xu							June 27
2977 30/06/2015     C2 K  Bo Zhou							June 30
2978 03/07/2015     C2 Y  Worachate Boonplod						July 3
2979 04/07/2015     C3 K  Worachate Boonplod						July 4
2980 04/07/2015     C3 K  Worachate Boonplod						July 4
2981 05/06/2015     C3 K  Zhijian Xu							July 5
2982 05/07/2015     C3 K  Worachate Boonplod						July 5
2983 06/07/2015     C3 K  Bo Zhou							July 7
2984 08/07/2015     C3 K  Worachate Boonplod						July 8
2985 12/07/2015     C2 O  Bo Zhou							July 12
XC88 12/07/2015     C3 O  Bo Zhou							July 12
2986 16/07/2015     C3 K  Bo Zhou							July 16
2987 24/07/2015     C3 K  Zhijian Xu							July 24
2988 02/08/2015     C3 K  Bo Zhou							August 2
2989 03/08/2015     C3 K  Masanori Uchina						August 3
2990 04/08/2015     C2 Y  Worachate Boonplod						August 4
2991 10/08/2015     C2 Y  Michal Biesiada (3)						August 10
2992 03/08/2015 P3  SW O  Michael Mattiazzo						August 11
2993 19/08/2015     C2 Y  Worachate Boonplod						August 19
2994 19/08/2015     C3 K  Worachate Boonplod						August 19
2995 20/08/2015     C3 K  Zhijian Xu							August 20
2996 27/08/2015     C3 K  Zhijian Xu							August 27
U    28/08/2015     C3 K  Zhijian Xu							August 28
2997 02/09/2015     C3 K  Szymon Liwo							September 2
C    03/09/2015 322 C2 R  Worachate Boonplod						September 3
2998 08/09/2015     C3 K  Trygve Prestgard						September 9
2999 10/09/2015     C3 K  Trygve Prestgard						September 11
3000 13/09/2015     C3 K  Worachate Boonplod						September 13
3001 14/09/2015     C3 K  Worachate Boonplod, Hanjie Tan				September 14
3002 14/09/2015     C3 K  Worachate Boonplod, Salil Mulye				September 14
3003 14/09/2015     C3 O  Bo Zhou							September 15
3004 15/09/2015     C3 K  Bo Zhou							September 15
3040 16/09/2015     C2 K  Masanori Uchina						September 16
3039 15/09/2015     C2 K  Bo Zhou							September 19
3005 23/09/2015     C2 K  Zhijian Xu							September 23
3006 25/09/2015     C3 K  Worachate Boonplod, Salil Mulye				September 25
3007 25/09/2015     C2 K  Bo Zhou							September 25
3008 25/09/2015     C3 K  Worachate Boonplod						September 25
C    25/09/2015     C3 D  Worachate Boonplod						September 25 == 1996 J6
3009 26/09/2015     C3 K  Worachate Boonplod						September 26
3010 30/01/1996     C3 K  Xavier Leprette (43)						2001 Sep 21
3011 02/07/2012     C2 K  Sergey Shurpakov						2012 Jul 02 was XC82
3012 17/09/2014     C3 K  Szymon Liwo							2014 Sep 17
3013 02/10/2015     C2 Y  Bo Zhou							October 02
3014 04/10/2015     C2 O  Bo Zhou							October 04
3015 05/10/2015     C3 K  Masanori Uchina						October 06
3016 11/10/2015     C3 K  Masanori Uchina						October 11
3017 12/10/2015     C2 K  Bo Zhou							October 12
3018 13/10/2015     C2 K  Trygve Prestgard						October 13
3019 14/10/2015     C3 O  Worachate Boonplod						October 14
3020 14/10/2015     C2 K  Masanori Uchina						October 14   
3021 18/10/2015     C3 K  Worachate Boonplod						October 18
3022 19/10/2015     C3 K  Worachate Boonplod, Hanjie Tan, Zhijian Xu			October 19
3023 20/10/2015     C2 K  Worachate Boonplod						October 20
3024 20/10/2015     C3 K  Worachate Boonplod						October 20
3025 21/10/2015     C2 K  Zhijian Xu							October 21
3026 22/10/2015     C3 K  Worachate Boonplod, Hanjie Tan				October 22
3027 22/10/2015     C2 K  Zhijian Xu							October 22
3028 23/10/2015     C3 K  Zhijian Xu							October 23
3029 26/10/2015     C2 K  Bo Zhou							October 26
3030 27/10/2015     C3 K  Worachate Boonplod						October 27
3031 27/10/2015     C2 K  Worachate Boonplod						October 27
3032 27/10/2015     C2 K  Worachate Boonplod						October 27
3033 30/10/2015     C3 K  Zhijian Xu, Worachate Boonplod				October 30
3034 30/10/2015     C2 K  Worachate Boonplod						October 30
3035 31/10/2015     C3 K  Bo Zhou							October 31
3036 31/10/2015     C2 K  Trygve Prestgard						October 31
3037 31/10/2015     C2 K  Bo Zhou							October 31
3038 31/10/2015     C2 K  Trygve Prestgard						October 31
3041 01/11/2015     C2 K  Zhijian Xu							November 1
3042 04/11/2015     C3 K  Worachate Boonplod						November 4
3043 05/11/2015     C3 K  Worachate Boonplod, Peiyuan Sun				November 5
3044 08/11/2015     C2 K  Worachate Boonplod						November 8
3045 09/11/2015     C3 K  Zhijian Xu							November 9
3046 10/11/2015     C2 K  Bo Zhou							November 10
3047 10/11/2015     C2 K  Masanori Uchina						November 11
3048 11/11/2015     C2 K  Shaoxiong Gu, Worachate Boonplod				November 11
3049 11/11/2015     C2 K  Worachate Boonplod						November 11
3050 11/11/2015     C2 K  Worachate Boonplod						November 11
3051 11/11/2015     C2 K  Worachate Boonplod						November 11
3052 16/11/2015     C2 Y  Worachate Boonplod						November 16
3053 16/11/2015     C2 K  Zhijian Xu							November 16
3054 23/11/2015     C2 K  Worachate Boonplod						November 23
3055 26/11/2015     C2 K  Worachate Boonplod						November 26
3056 26/11/2015     C2 K  Masanori Uchina						November 26
3057 26/11/2015     C2 K  Worachate Boonplod						November 26
3058 26/11/2015     C2 K  Masanori Uchina						November 26
3059 28/11/2015     C2 K  Worachate Boonplod, Szymon Liwo				November 28
3060 29/11/2015     C2 K  Masanori Uchina						November 29
3061 29/11/2015     C2 Y  Bo Zhou							November 29
3062 30/11/2015     C2 K  Worachate Boonplod, Michele Mazzucato				November 30
3063 01/12/2015     C2 K  Szymon Liwo, Worachate Boonplod 				December 1
3064 03/12/2015     C2 K  Worachate Boonplod						December 3
3065 04/12/2015     C3 K  Worachate Boonplod						December 4
3066 01/12/2015     C2 K  Bo Zhou							December 4
3067 02/12/2015     C2 K  Bo Zhou							December 4
3068 06/12/2015     C3 K  Masanori Uchina						December 6
3069 06/12/2015     C3 K  Szymon Liwo							December 6
3070 06/12/2015     C2 Y  Trygve Prestgard						December 6
3071 05/12/2015     C2 K  Bo Zhou, Trygve Prestgard					December 6
3072 08/12/2015     C2 K  Simone Renai (2)						December 8
3074 10/12/2015     C2 K  Bo Zhou							December 14
3073 14/12/2015     C3 K  Masanori Uchina						December 14
3075 14/12/2015     C2 D  Bo Zhou							December 14 == 2004 V9 ?
3076 15/12/2015     C2 Y  Bo Zhou							December 16 Same object ?
3077 16/12/2015     C2 K  Szymon Liwo							December 16
3078 18/12/2015     C2 D  Bo Zhou							December 18 == 2004 V10 ?
3079 18/12/2015     C2 K  Szymon Liwo							December 18
3080 19/12/2015     C2 K  Masanori Uchina						December 19
3081 21/12/2015     C2 R  Masanori Uchina						December 21 == 2009 Y10
3082 23/12/2015     C3 K  Worachate Boonplod						December 23
3083 23/12/2015     C2 K  Masanori Uchina						December 23
3084 24/12/2015     C3 K  Zhijian Xu							December 24
3085 25/12/2015     C2 K  Masanori Uchina, Michal Biesiada				December 25
3086 26/12/2015     C3 K  Worachate Boonplod, Michal Biesiada				December 26
3087 27/12/2015     C2 K  Bo Zhou							December 27
3088 28/12/2015     C2 K  Worachate Boonplod						December 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) 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:
Zesheng Yang - First comet 27/02/2015
Simone Renai - First comet 25/06/2015
Bo Zhou - 2900th SOHO comet 01/04/2015
Worachate Boonplod - 3000th SOHO comet 13/09/2015

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