SOHO Comets 2004

The table list the provisional SOHO number for the comet, the day (UT) and month of the first (discovery) observation, the year and comet identification, the LASCO 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. Note that provisional numbers may be changed if the comet is not confirmed and do not necessarily match those given on the SOHO web pages.

SOHO Observed   Des C  G  Observer				Discovered
724  09/01/2004 A2  C3 K  John Sachs (38)			(January 9)
725  15/01/2004 A3  C2 R  Tony Hoffman (12)			(January 16)
726  18/01/2004 B4  C3 K  John Sachs, S Hoenig, T Hoffman	(January 18)
727  18/01/2004 B3  C2 R  XingMing Zhou (52)			(January 18)
728  19/01/2004 B5  C3 K  Sebastian Hoenig (39)			(January 19)
729  21/01/2004 B6  C3 K  Jim Danaher (11)			(January 21)
730  21/01/2004 B7  C3 K  Mike Boschat (57)			(January 21)
731  24/01/2004 B8  C3 K  Tony Hoffman (14)			(January 24)
732  25/01/2004 B9  C3 K  Mike Boschat (58)			(January 25)
733  30/01/2004 B10 C3 K  Sebastian Hoenig (40)			(January 30)
734  03/02/2004 C3  C3 K  Rainer Kracht (119)			(February 3)
735  05/02/2004 C2  C2 Y  Xavier Leprette (101)			(February 5)
736  28/01/2004 B2  C2 Y  Rainer Kracht (120)			(February 5)
737  08/02/2004 C4  C3 K  XingMing Zhou (53)			(February 8)
738  08/02/2004 C5  C3 K  Tony Hoffman (15)			(February 8)
739  10/02/2004 C6  C3 K  Tony Hoffman (16)			(February 10)
740  13/02/2004 C7  C3 K  Rainer Kracht (121)			(February 13)
741  14/02/2004 C8  C3 K  DongHua Chen, Tony Scarmato		(February 14)
742  25/02/2004 D3  C3 K  Tony Hoffman (17)			(February 25)
743  25/02/2004 D2  C3 K  XingMing Zhou (54)			(February 25)
744  26/02/2004 D4  C3 K  John Sachs (40)			(February 26)
745  09/03/2004 E1  C3 K  Kazimieras Cernis (15)		(March 9)
746  12/03/2004 E2  C2 O  Rainer Kracht (122)			(March 12)
747  14/03/2004 E3  C3 K  Rainer Kracht (123)			(March 15)
748  15/03/2004 E4  C3 K  Sebastian Hoenig (41)			(March 15)
749  17/03/2004 F5  C3 K  Rainer Kracht, Tony Hoffman		(March 17)
750  22/03/2004 F6  C3 K  Sebastian Hoenig, John Sachs		(March 22)
751  26/03/2004 F7  C3 K  XingMing Zhou (55)			(March 26)
752  02/04/2004 G3  C3 K  XingMing Zhou, John Sachs		(April 02)
753  04/04/2004 G4  C3 K  Tony Hoffman (19)			(April 04)
754  10/04/2004 G2  C2 Y  Tony Hoffman (20)			(April 10)
755  10/04/2004 G5  C2 K  Tony Hoffman (21)			(April 10)
756  11/04/2004 G6  C2 K  Rainer Kracht, Tony Hoffman		(April 11)
757  13/04/2004 G7  C2 K  John Sachs (43)			(April 13)
758  13/04/2004 G8  C2 K  John Sachs (44)                       (April 13)
759  15/04/2004 G9  C2 K  John Sachs (45)			(April 15)
760  16/04/2004 H4  C2 Y  Rainer Kracht (126)			(April 16)
761  18/04/2004 H7  C2 K  Rainer Kracht, Tony Hoffman		(April 18)
762  19/04/2004 H8  C2 K  Tony Hoffman (24)			(April 19)
U    19/04/2004     C2 D  Tony Hoffman				(April 19)
763  19/04/2004 H9  C2 K  Mike Boschat (59)			(April 22)
764  30/04/2004 H5  C2 Y  Karl Battams (1)			(April 30)
765  30/04/2004 H10 C2 K  XingMing Zhou (57)			(April 30/May 2)
766  02/05/2004 J1  C2 K  Tony Hoffman, Rainer Kracht		(May 2)
767  04/05/2004 J2  C2 K  Mike Boschat, Xavier Leprette		(May 4)
768  04/05/2004 J3  C2 K  X Leprette, R Kracht, J Sachs		(May 4)
769  06/05/2004 J5  C2 K  XingMing Zhou, Tony Hoffman		(May 6)
770  05/05/2004 J4  C2 R  Rainer Kracht (130)			(May 6)
771  07/05/2004 J6  C2 K  Tony Hoffman (27)			(May 7)
772  08/05/2004 J7  C2 K  XingMing Zhou (59)			(May 8)
773  10/05/2004 J8  C2 K  R Kracht, J Sachs, X Zhou		(May 10)
774  10/05/2004 J9  C3 K  Mike Boschat (61)			(May 10)
775  11/05/2004 J10 C3 K  Sebastian Hoenig, Rainer Kracht	(May 11)
776  12/05/2004 J11 C2 K  Rainer Kracht (133)			(May 12)
777  12/05/2004 J12 C2 R  Rainer Kracht (134)			(May 12)
778  14/05/2004 J14 C2 K  T Hoffman, X Zhou, X Leprette		(May 14)
779  14/05/2004 J13 C2 R  Rainer Kracht (135)			(May 14)
780  14/05/2004 J15 C2 R  Rainer Kracht (136)			(May 14)
781  14/05/2004 J16 C2 R  Tony Hoffman (29)			(May 15)
782  15/05/2004 J17 C2 R  Rainer Kracht (137)			(May 15)
783  15/05/2004 J18 C2 R  Rainer Kracht (138)			(May 15)
784  18/05/2004 K4  C2 K  Rainer Kracht (139)			(May 18)
785  20/05/2004 K5  C2 K  XingMing Zhou (62)			(May 20)
786  21/05/2004 K6  C2 K  Mike Boschat (62)			(May 21)
787  23/05/2004 K7  C2 K  DongHua Chen (5)			(May 23)
788  14/05/2004 J19 C2 K  Dave Evans				(May 23)
789  24/05/2004 K8  C2 K  Maik Meyer				(May 24)
790  24/05/2004 K9  C2 K  Vladimir Bezugly (1)			(May 24)
791  25/05/2004 K10 C2 K  Maik Meyer				(May 25)
793  27/05/2004 K11 C2 K  XingMing Zhou, Pavel Shkreby (11)	(May 27)
792  29/04/2004 H6  SW O  Zhou, Cernis, Mattiazzo (1)		(May 27)
794  30/05/2004 K12 C3 K  Rainer Kracht				(May 30)
795  05/06/2004 L3  C2 K  Bo Zhou (1)				(June 5)
797  07/06/2004 L4  C2 K  XingMing Zhou				(June 7)
796  08/06/2004 L5  C2 K  XingMing Zhou				(June 8)
798  09/06/2004 L6  C2 K  Rainer Kracht, John Sachs, XM Zhou	(June 9)
799  09/06/2004 L7  C3 K  Rainer Kracht				(June 9)
800  10/06/2004 L8  C3 K  Kazimieras Cernis			(June 10)
801  10/06/2004 L9  C2 K  XingMing Zhou				(June 10)
802  13/06/2004 L10 C2 R  Rainer Kracht				(June 13)
803  18/06/2004 M1  C2 K  Rainer Kracht, T Hoffman, X Leprette	(June 18)
804  24/06/2004 M2  C3 K  John Sachs				(June 24)
805  15/06/2004 L11 C2 K  Tony Hoffman				(June 26)
806  27/06/2004 M4  C2 K  Tony Hoffman				(June 27)
807  27/06/2004 M5  C2 K  Tony Hoffman				(June 27)
808  27/06/2004 M6  C2 K  Tony Hoffman				(June 27)
809  26/06/2004 M3  C2 K  DongHua Chen (6)			(June 28)
810  27/06/2004 M7  C2 K  Xavier Leprette, Tony Hoffman		(June 28)
811  01/07/2004 N1  C2 K  XingMing Zhou				(July 1)
812  01/07/2004 N2  C3 K  John Sachs				(July 1)
813  05/07/2004 N3  C3 K  John Sachs				(July 5)
814  07/07/2004 N4  C3 K  XingMing Zhou				(July 7)
815  08/07/2004 N5  C3 K  Xavier Leprette			(July 8)
816  09/07/2004 N6  C3 K  XingMing Zhou				(July 9)
817  13/06/1996 L2  C3 K  Xavier Leprette			(July 12)
818  20/06/1996 M3  C3 K  Xavier Leprette			(July 12)
819  16/07/2004 O1  C3 K  XingMing Zhou				(July 16)
820  18/07/2004 O2  C3 K  XingMing Zhou				(July 18)
821  26/07/2004 O3  C3 K  XingMing Zhou (74)			(July 26)
822  05/08/2004 P3  C3 K  John Sachs				(August 5)
823  05/08/2004 P2  C3 K  Dave Evans				(August 5)
824  06/08/2004 P4  C3 K  Xavier Leprette			(August 6)
X    07/08/2004     C3 K  Jim Danaher				(August 7)
825  08/08/2004 P5  C3 K  Hua Su (1)				(August 8)
826  13/08/2004 P6  C3 K  Jim Danaher (12)			(August 13)
827  26/05/2002 K11 C2 K  Dave Evans (23)			(2002 August 11)
828  15/08/2004 P7  C3 K  Tony Hoffman, Xavier Leprette		(August 15)
829  19/08/2004 Q3  C3 K  Tony Hoffman				(August 19)
830  20/08/2004 Q4  C3 K  John Sachs				(August 20)
831  25/08/2004 Q5  C3 K  Xavier Leprette			(August 25)
832  25/08/2004 Q6  C3 K  Tony Hoffman				(August 25)
833  04/09/2004 R4  C3 K  Hua Su				(September 4)
834  04/09/2004 R5  C3 K  John Sachs				(September 4)
U    05/09/2004     C3 K  Tony Scarmato				(September 5)
835  07/09/2004 R6  C3 K  Hua Su, Xavier Leprette, Jim Danaher	(September 7)
836  07/09/2004 R7  C3 K  Karl Battams				(September 7)
837  20/09/2004 S2  C3 K  Karl Battams				(September 20)
838  22/09/2004 S3  C3 K  Tsai Yuan-Sheng (1), Hua Su		(September 22)
839  28/09/2004 S4  C3 K  Hua Su				(September 28)
840  05/10/2004 T4  C3 K  Hua Su, Xavier Leprette		(October 5)
841  05/10/2004 T5  C3 K  Rainer Kracht, John Sachs		(October 5)
842  12/10/2004 T6  C3 K  Hua Su				(October 12)
843  08/10/2004 T2  C2 Y  Rainer Kracht				(October 12)
844  13/10/2004 T7  C3 K  Tony Hoffman				(October 13)
845  16/10/2004 U2  C3 O  Heiner Otterstedt			(October 16)
846  17/10/2004 U4  C2 K  Bo Zhou				(October 17)
847  18/10/2004 U3  C2 Y  Karl Battams				(October 18)
848  21/10/2004 U5  C3 K  Heiner Otterstedt			(October 21)
849  21/10/2004 U6  C3 K  Rainer Kracht				(October 21)
850  22/10/2004 U7  C2 K  Xing Gao (1)				(October 22)
851  23/10/2004 U8  C3 K  Xavier Leprette, Hua Su		(October 23)
852  25/10/2004 U9  C3 K  Tony Hoffman				(October 25)
853  26/10/2004 U11 C2 K  Hua Su, Xavier Leprette		(October 26)
854  26/10/2004 U10 C3 K  John Sachs				(October 26)
855  28/10/2004 U12 C2 K  Bo Zhou				(October 28)
856  04/11/2004 V6  C2 K  Tony Hoffman				(November 4)
857  04/11/2004 V7  C3 K  Tony Hoffman				(November 4)
858  07/11/2004 V8  C3 K  Karl Battams				(November 8)
859  08/11/2004 V9  C3 D  Heiner Otterstedt			(November 8)
860  08/11/2004 V10 C2 D  Karl Battams				(November 8)
861  08/11/2004 V11 C2 K  Tony Hoffman				(November 8)
X    08/11/2004     C2 O  Tony Hoffman				(November 9)
862  10/11/2004 V12 C3 K  Xavier Leprette, Hua Su		(November 10)
863  14/11/2004 V14 C3 K  Maik Meyer				(November 14)
864  16/11/2004 V15 C3 K  Tony Hoffman				(November 16)
865  16/11/2004 W1  C2 K  Tony Hoffman				(November 16)
866  18/11/2004 W2  C3 K  Tony Scarmato				(November 18)
867  19/11/2004 W3  C3 K  Rainer Kracht				(November 19)
876  21/11/2004 W4  C2 K  Bo Zhou				(November 22)
868  22/11/2004 W5  C2 K  Sebastian Hoenig (44), Bo Zhou	(November 22)
869  23/11/2004 W6  C2 K  Xavier Leprette, Hua Su		(November 23)
870  24/11/2004 W7  C3 K  Tony Hoffman				(November 24)
871  24/11/2004 W8  C2 K  Xavier Leprette			(November 24)
872  28/11/2004 W9  C2 K  Xing Gao, Maik Meyer (35)		(November 28)
873  30/11/2004 W10 C2 D  Rainer Kracht				(November 30)
874  30/11/2004 W11 C2 K  Rob Matson				(November 30)
875  02/12/2004 X4  C3 K  Steve Farmer (1)			(December 3)
877  04/12/2004 X5  C2 K  Tony Hoffman				(December 4)
878  06/12/2004 X6  C2 K  Tony Hoffman				(December 6)
879  08/12/2004 X7  C2 O  Rainer Kracht (150)			(December 8)
880  08/12/2004 X8  C2 K  Rob Matson, Xavier Leprette (120)	(December 8)
X    08/12/2004     C3 K  Rob Matson (42)			(December 8)
881  13/12/2004 X9  C2 K  Karl Battams (7)			(December 13)
882  13/12/2004 X10 C2 K  Karl Battams, K Cernis (18), X Gao	(December 13)
883  13/12/2004 X11 C2 K  Greg Gallina (2)			(December 13)
884  09/11/2004 V13 SW O  Michael Mattiazzo (2)			(November 30)
884  16/12/2004 V13 C3 O  John Sachs (57), Heiner Otterstedt	(December 16)
885  18/12/2004 Y2  C2 K  Hua Su				(December 18)
886  24/12/2004 Y3  C3 K  Tony Scarmato (21)			(December 24)
887  24/12/2004 Y4  C3 O  Heiner Otterstedt			(December 24)
888  25/12/2004 Y5  C3 K  Bo Zhou (6)				(December 25)
889  26/12/2004 Y6  C3 K  Heiner Otterstedt (8)			(December 26)
890  26/12/2004 Y7  C2 K  Hua Su				(December 26)
891  26/12/2004 Y8  C2 K  Hua Su				(December 27)
893  28/12/2004 Y9  C2 K  Xing Gao (4)				(December 28)
894  28/12/2004 Y10 C2 O  Tony Hoffman				(December 28)
X    28/12/2004     C2 K  Rob Matson				(December 28)
895  28/12/2004 Y11 C3 K  Hua Su (15)				(December 29)
896  31/12/2004 Y12 C3 K  Tony Hoffman (50)			(December 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 or SW for SWAN) 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. Comet 810 was first reported by Hoffman on the sohohunter newsgroup pages, although no positions were given.

It seems probable that there are further non group comets to be found in the archival data [and clearly some Kreutz ones!].


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