Updated 2002 January 29
Further to IAUC 7548, D. Hammer reports his measurements for additional Kreutz sungrazing comets found by J. Danaher (C/1998 B2), X. Leprette (Nov. comets), and M. Oates (Dec. comets) on SOHO website images taken with the C2 coronograph; C/1998 B2 was also visible in C3 data. The reduced observations and orbital elements by B. G. Marsden are given on the MPECs cited below. [IAUC 7558, 2001 January 9]
Comet 1998 UT R.A. (2000) Decl. MPEC C/1998 B2 Jan. 25.588 20 48.0 -20 20 2001-A32 C/1998 V2 Nov. 7.309 14 44.0 -17 35 2001-A31 C/1998 V3 7.309 14 44.7 -17 37 2001-A31 C/1998 V4 9.121 14 50.8 -18 07 2001-A35 C/1998 W4 24.188 15 58.2 -22 11 2001-A31 C/1998 W5 24.692 16 01.4 -22 22 2001-A31 C/1998 W6 25.564 16 04.4 -22 30 2001-A35 C/1998 X9 Dec. 14.246 17 30.8 -25 03 2001-A32 C/1998 X10 14.271 17 30.3 -25 04 2001-A32Further to IAUC 7558, D. Hammer reports his measurements for additional Kreutz sungrazing comets found by J. Danaher (Jan. comet in C3 data) and X. Leprette (Sept. comet in C2 data) on SOHO website images. The reduced observations and orbital elements by B. G. Marsden are given on the MPECs cited below. [IAUC 7560, 2001 January 13]
Comet 1997 UT R.A. (2000) Decl. MPEC C/1997 B3 Jan. 21.990 20 35.8 -21 27 2001-A35 C/1997 S3 Sept.24.465 11 56.5 - 0 53 2001-A47Further to IAUC 7560, D. Hammer reports his measurements for additional Kreutz sungrazing comets found by J. Danaher (C/2000 A2 in C3 data), M. Oates (Nov. comets and C/2000 X5 in C2 data), X.-m. Zhou (C/2000 X4 in C2 data), T. Lovejoy (C/2000 Y4 in C2 and C3 data), and M. Boschat (remaining Dec. comets in C2 data; both Dec. 5 comets also visible in C3) on SOHO website images. The reduced observations and orbital elements by B. G. Marsden are given on the MPECs cited below. [IAUC 7562, 2001 January 14]
Comet 2000 UT R.A. (2000) Decl. MPEC C/2000 A2 Jan. 14.596 19 57.6& -23 08 2001-A32 C/2000 W4 Nov. 19.388 15 32.3& -22 52 2001-A32 C/2000 W5 27.288 16 14.1& -22 55 2001-A35 C/2000 X1 Dec. 3.518 16 43.1& -24 00 2001-A43 C/2000 X2 5.904 16 53.6& -24 53 2001-A43 C/2000 X3 5.654 16 50.8& -26 01 2001-A43 C/2000 X4 5.435 16 51.7& -24 14 2001-A47 C/2000 X5 7.076 16 59.3& -24 29 2001-A47 C/2000 X6 7.451 17 03.4& -24 35 2001-A47 C/2000 X7 10.643 17 16.4& -24 50 2001-A47 C/2000 Y4 17.263 17 46.6& -27 34 2001-A47Further to IAUC 7562, D. Hammer reports his measurements for additional Kreutz sungrazing comets found by M. Oates (Dec. comet) and X. Leprette (remaining comets) in C2 data on SOHO website images. The reduced observations and orbital elements by B. G. Marsden are given on the MPECs cited below. [IAUC 7565, 2001 January 17]
Comet 1998 UT R.A. (2000) Decl. MPEC C/1998 U6 Oct. 29.263 14 05.5 -14 33 2001-A47 C/1998 V5 Nov. 2.643 14 24.0 -16 01 2001-A43 C/1998 V6 2.643 14 24.9 -15 55 2001-A43 C/1998 X11 Dec. 8.795 17 04.9 -24 32 2001-A43Hammer also reports his measurements for seven additional Kreutz sungrazing comets, all found in C2 data (except C/2001 A3, in C3 data) at the SOHO website by T. Scarmato (C/2000 J6), X. Leprette (C/2000 K7), M. Oates (C/2000 K8, C/2000 Y9), and M. Boschat (remaining comets). The reduced observations and orbital elements by Marsden appear on the MPECs cited below. [IAUC 7567, 2001 January 19]
Comet 2000 UT R.A. (2000) Decl. MPEC C/2000 J6 May 11.410 3 18.1 +16 37 2001-B11 C/2000 K7 19.160 3 47.4 +18 17 2001-B11 C/2000 K8 29.788 4 28.5 +20 07 2001-B11 C/2000 Y5 Dec. 19.736 17 58.8 -25 08 2001-B08 C/2000 Y8 23.788 18 17.7 -24 52 2001-B08 C/2000 Y9 25.121 18 23.6 -24 53 2001-B08 Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 A3 Jan. 7.971 19 32.6 -24 10 2001-B11Further to IAUC 7567, D. Hammer reports his measurements for several additional Kreutz sungrazing comets from SOHO C2 coronagraph data. Comets C/2000 H5 and C/2000 X8 were found by D. Biesecker, and the remaining comets were found at the SOHO website by M. Oates. The reduced observations and orbital elements by B. G. Marsden appear on the MPECs cited below. [IAUC 7572, 2001 January 25]
Comet 2000 UT R.A. (2000) Decl. MPEC C/2000 H3 Apr. 17.254 1 49.4 + 9 40 2001-B21 C/2000 H4 30.504 2 37.7 +13 50 2001-B21 C/2000 H5 30.504 2 37.8 +13 49 2001-B21 C/2000 J7 May 4.338 2 51.6 +14 50 2001-B12 C/2000 L6 June 11.229 5 16.7 +21 22 2001-B12 C/2000 N3 July 4.785 6 50.4 +21 47 2001-B12 C/2000 X8 Dec. 12.743 17 26.0 -25 01 2001-B12Further to IAUC 7572, D. Hammer reports his measurements for two additional Kreutz sungrazing comets, found in C3 coronagraph data at the SOHO website by M. Boschat (C/2001 A4) and M. Oates (C/2001 B3). Though C/2001 B3 was visible in many C3 images, it faded before it entered the field-of-view of the C2 coronagraph. The reduced observations and orbital elements by B. G. Marsden appear on the MPECs cited below. [IAUC 7573, 2001 January 27]
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 A4 Jan. 14.138 19 59.7 -23 36 2001-B21 C/2001 B3 24.388 20 49.7 -21 06 2001-B45Further to IAUC 7573, D. A. Biesecker reports his measurements of a fairly bright Kreutz sungrazing comet found by S. Hoenig and X.-m. Zhou on C3 coronagraph images posted at the SOHO website. V magnitude estimates by Biesecker: Feb. 6.654 UT, 7.6; 6.696, 7.5; 6.738, 7.1; 6.779, 6.7; 6.821, 6.7; 6.863, 6.4; 6.904, 6.0; 7.013, 5.7; 7.154, 5.2; 7.221, 4.9; 7.263, 4.5; 7.321, 4.5; 7.488, 4.0. Estimated tail lengths: Feb. 6.904, 0.1 deg; 7.488, about 0.2 deg. The reduced positions and orbital elements by B. G. Marsden appear on MPEC 2001-C09. [IAUC 7580, 2001 February 7]
2001 UT R.A. (2000) Decl.
Feb. 6.346 21 52.5 -18 07
Further to IAUC 7573 and 7580, D. Hammer reports his
measurements for additional Kreutz sungrazing comets found by M.
Oates on SOHO website images. Both objects were visible in the C2
coronagraph, but only C/2001 C3 (which also developed a long, thin
tail but faded rapidly as it entered the C2 field-of-view on Feb.
4.8 UT) was also visible in C3 data. The reduced observations and
orbital elements by B. G. Marsden are included on MPEC 2001-C23.
[IAUC 7582, 2001 February 13]
Comet 2001 UT R.A. (2000) Decl.
C/2001 C3 Feb. 3.488 21 38.9 -19 17
C/2001 C4 8.204 21 35.4 -16 01
Further to IAUC 7585, D. Biesecker reports his measurements
for a comet (2001 C6) in images obtained by the C2 and C3 coronagraphs and
found by M. Boschat on SOHO website images. The reduced
observations and orbital elements by B. G. Marsden appear on MPEC
2001-D42. [IAUC 7601, 2001 March 21]
2001 UT R.A. (2000.0) Decl.
Feb. 13.888 22 15.4 -15 34
Further to IAUC 7601, D. Biesecker reports his measurements
for two Kreutz sungrazing comets found on LASCO C2 coronagraph
images by X. Leprette at the SOHO website. The reduced
observations and orbital elements by B. G. Marsden appear on MPEC
2001-F52. [IAUC 7606, 2001 April 2]
Comet Date UT R.A. (2000.0) Decl. C/1996 L1 1996 June 10.913 5 14.8 +21 22 C/1997 M5 1997 June 19.725 5 49.0 +21 46Further to IAUCs 7585 and 7606, D. Hammer reports his measurements of another very faint Kreutz sungrazing comet [C/1998 V7 (SOHO)] found by M. Oates in archival C2 coronagraph images at the SOHO website. The reduced measurements and orbital elements by B. G. Marsden appear on MPEC 2001-G34. [IAUC 7612, 2001 April 23]
1998 UT R.A. (2000) Decl.
Nov. 7.221 14 43.9 -17 34
Further to IAUC 7612, D. Hammer and D. Biesecker report
measurements by Hammer for several additional sungrazing comets
found with SOHO, with all but C/2001 E1 being of Kreutz type. The
reduced observations and orbital elements by B. G. Marsden appear
on the MPECs cited below. Comets C/2001 F2, C/2001 G2, and C/2001
H1 were detected with both the C2 and C3 coronagraphs, while the
remaining comets were visible only with C2. The comets were found
at the SOHO website by M. Boschat (C/2001 F2), S. Hoenig (C/2001
G2), T. Scarmato (C/2001 H2), X. Leprette (C/2001 H2, C/2001 H3,
C/2001 H4), and M. Oates (remaining comets). C/2001 G2 saturated
the C2 images (though the comet was partially obscured by the
occulting pylon). C/2001 G3 was very faint. [IAUC 7613, 2001 April 25]
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 E1 Mar. 15.561 23 44.7 - 0 11 2001-F52 C/2001 F2 25.988 0 44.8 + 0 45 2001-F55 C/2001 G2 Apr. 7.540 1 30.5 + 5 10 2001-G34 C/2001 G3 10.729 1 24.6 + 7 20 2001-G34 C/2001 H1 20.096 2 00.5 + 9 31 2001-H32 C/2001 H2 20.479 2 00.4 +10 42 2001-H32 C/2001 H3 20.439 2 00.5 +10 39 2001-H32 C/2001 H4 20.579 2 00.5 +10 41 2001-H32Further to IAUC 7613, MPEC 2001-H44, 2001-J3, 2001-J35 and 2001-K19 give detailed information on six more Kreutz sungrazing comets, the SOHO discovery observations of which are:
2001 UT R.A. (2000) Decl. Comet
Apr. 26.488 2 29.2 +11 49 C/2001 H6
30.188 2 35.6 +13 37 C/2001 H7
May 5.354 2 55.1 +15 04 C/2001 J2
6.729 2 56.4 +15 05 C/2001 J3
10.131 3 12.8 +16 16 C/2001 J4
19.471 3 51.6 +17 35 C/2001 K2
IUAC 7631, 2001 May 23]
Further to IAUCs 7613 and 7631, D. A. Biesecker has reported
measurements by D. Hammer of another comet (2001 K4) found by Biesecker on
LASCO C2 images obtained with the SOHO spacecraft. The reduced
observations and orbital elements by B. G. Marsden appear on MPEC
2001-K27. [IAUC 7634, 2001 May 28]
2001 UT R.A. (2000) Decl.
May 22.436 3 58.3 +18 47
Further to IAUC 7634, D. Hammer reports his measurements for
three additional Kreutz sungrazing comets found by M. Oates, K.
Cernis, and T. Scarmato on LASCO C2 coronagraph images posted at
the SOHO website. The reduced astrometry and orbital elements by
B. G. Marsden appear on MPEC 2001-L09. [IAUC 7641, 2001 June 6]
Comet 2001 UT R.A. (2000) Decl.
C/2001 K6 May 23.368 4 01.8 +18 58
C/2001 K7 23.493 4 02.0 +19 00
C/2001 K8 29.504 4 25.2 +19 54
Further to IAUC 7641, D. Hammer reports his measurements for
five additional Kreutz sungrazing comets found on LASCO C2
coronagraph images obtained with the SOHO spacecraft; C/2001 L3 was
also detected in C3 images. The reduced astrometry and orbital
elements by B. G. Marsden appear on the MPECs cited below. [IAUC 7642,
2001 June 8]
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 K9 May 24.993 4 09.2 +19 19 2001-L24 C/2001 L1 June 2.896 4 43.3 +20 37 2001-L21 C/2001 L2 4.204 4 48.4 +20 42 2001-L21 C/2001 L3 4.346 4 50.6 +19 56 2001-L24 C/2001 L4 5.646 4 54.0 +20 48 2001-L24Further to IAUC 7642, D. Hammer reports his measurements for six additional Kreutz sungrazing comets on LASCO C2 coronagraph images obtained with the SOHO spacecraft; comets C/2001 L8 and C/2001 L9 were found by X. Leprette and T. Scarmato, respectively, on images at the SOHO website, while the remaining comets were found by M. Oates. C/1997 K7 appears pointlike with no apparent tail. The reduced astrometry and orbital elements by B. G. Marsden appear on MPEC 2001-M06. [IAUC 7646, 2001 June 20]
Comet 1997 UT R.A. (2000) Decl.
C/1997 K7 May 31.845 4 32.4 +20 19
Comet 2001 UT R.A. (2000) Decl.
C/2001 L5 June 5.814 4 59.0 +20 53
C/2001 L6 8.875 5 07.2 +21 09
C/2001 L7 9.004 5 07.6 +21 08
C/2001 L8 10.004 5 10.8 +21 10
C/2001 L9 13.564 5 23.2 +21 34
Further to IAUC 7646, D. Hammer reports his measurements for
six additional Kreutz sungrazing comets on images obtained with the
LASCO C2 coronagraph onboard SOHO; comet C/2001 M3 was also visible
in C3 images. Comet C/2001 M6 showed a short tail on a few images.
The comets were found on SOHO website images by X. Leprette (C/1997
W3), M. Oates (C/2001 M2, M4), S. Hoenig (C/2001 M3), X. Zhou
(C/2001 M5), and T. Scarmato (C/2001 M6). The reduced astrometry
and orbital elements by B. G. Marsden appear on MPEC 2001-M33.
[IAUC 7650, 2001 June23]
Comet 1997 UT R.A. (2000) Decl.
C/1997 W3 Nov. 24.775 16 01.4 -22 16
Comet 2001 UT R.A. (2000) Decl.
C/2001 M2 June 16.594 5 36.2 +21 34
C/2001 M3 16.684 5 37.2 +21 18
C/2001 M4 19.013 5 46.3 +21 39
C/2001 M5 20.271 5 51.1 +21 42
C/2001 M6 21.996 5 57.8 +21 43
Further to IAUC 7650, D. Biesecker and D. Hammer report
measurements of three additional Kreutz sungrazing comets found by
K. Cernis, X. Leprette, and M. Oates on SOHO website images.
C/2001 M7 and C/2001 M8 were visible in both the C2 and C3
instruments, while C/2001 M9 was visible only in C2 images. The
reduced astrometry and orbital elements by B. G. Marsden appear on
the MPECs cited below. [IAUC 7655, 2001 July 2]
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 M7 June 25.613 6 09.6& +21 19 2001-M44 C/2001 M8 26.576 6 15.1& +20 21 2001-M46 C/2001 M9 26.663 6 16.8& +21 44 2001-M55Further to IAUC 7655, D. Hammer reports measurements of three additional comets found by M. Oates, X. Leprette, and S. Hoenig on SOHO website images. All three objects were visible with the C2 coronagraph, and C/2001 O1 was also visible in C3 images. The reduced astrometry and orbital elements by B. G. Marsden appear on the MPEC cited below; C/2001 N1 does not seem to be a Kreutz sungrazer, whereas the other two comets do. [IAUC 7667, 2001 July 19]
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 M11 June 27.254 6 18.6 +22 03 2001-N24 C/2001 N1 July 5.896 6 55.7 +21 07 2001-N24 C/2001 O1 16.221 7 29.8 +19 15 2001-O03Further to IAUC 7667, astrometry (measured by D. Hammer, reduced by B. G. Marsden) and orbital elements are given on the MPECs cited below for two additional sungrazing comets found by T. Scarmato and S. Hoenig, respectively, on SOHO website images: [IAUC 7689, 2001 August 24]
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 P1 Aug. 4.971 8 48.5 +16 12 2001-P22 C/2001 P2 15.221 9 22.7 +13 02 2001-Q02Further to IAUC 7689, D. Hammer reports astrometric measurements of a comet found by Chen Dong Hua on SOHO website images. The object was first detected (at the position given below) in LASCO C2 coronagraph images, moving southward from directly underneath the occulter; the comet brightened and showed a nice tail before entering the C3 field-of-view, where it began to fade, as indicated by the following additional V magnitudes provided by D. Biesecker and Hammer: Aug. 25.393 UT, 7.6; 25.463, 7.4; 25.977, 5.7; 26.102, 4.8; 26.221, 5.2; 26.227, 4.6; 26.446, 5.8; 26.811, 8.0. [IAUC 7694, 2001 August 28]
2001 UT R.A. (2000) Decl. m1
Aug. 25.338 10 15.1 +12 35 8.3
The reduced positions, the following orbital elements, and an
ephemeris by B. G. Marsden appear on MPEC 2001-Q60.
T = 2001 Aug. 26.51 TT Peri. = 268.11
Node = 155.03 2000.0
q = 0.0373 AU Incl. = 106.63
Measurements by D. Hammer (and by Hammer and D. Biesecker for C/2001 R2) have been reported for six more comets discovered on SOHO website images (cf. IAUC 7694). Comet C/2001 Q7, found by R. Kracht, appeared pointlike with no apparent tail on C2 coronagraph images; this object does not have a Kreutz-type orbit, and Biesecker reports the following V magnitudes for C/2001 Q7: Aug. 21.868 UT, 8.1; 21.893, 8.0; 21.921, 8.4; 21.936, 8.5; 21.977, 8.4; 21.993, 8.6. The remaining comets all appear to be Kreutz sungrazers: C/2001 R2 (found by S. Hoenig), C/2001 R4 (found by X. Zhou), and C/2001 R5 (found by D. Johnson), were all visible in both the C2 and C3 instruments, while C/2001 R3 (found by M. Meyer) and C/1996 A2 (found by R. Gorelli) were only detected in C3 images. C/2001 R2 reached peak mag 2.5-3 and showed a tail at least 0.75 deg long in C3 images. C/2001 R4 and C/2001 R5 each showed a short tail. Astrometric reductions and orbital elements by B. G. Marsden appear on the MPECs cited below.
Comet 1996 UT R.A. (2000) Decl. MPEC C/1996 A2 Jan. 14.058 19 53.2 -23 06 2001-O43 Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 Q7 Aug. 21.852 9 57.3 +12 59 2001-R36 C/2001 R2 Sept. 3.142 10 14.0 + 5 53 2001-R34 C/2001 R3 5.113 10 36.8 + 6 19 2001-R51 C/2001 R4 8.221 10 50.8 + 4 27 2001-R51 C/2001 R5 10.488 10 52.6 + 4 08 2001-R51[IAUC 7718, 2001 September 17]
D. Hammer reports (cf. IAUC 7718) that X. Leprette found a sungrazing comet on SOHO website C3 coronagraph images; reduced astrometry and orbital elements by B. G. Marsden appear on MPEC 2001-S70. C/1996 B4
1996 UT R.A. (2000) Decl.
Jan. 21.337 20 27.8 -21 32
[IAUC 7726, 2001 October 3]
Further to IAUC 7726, D. Hammer reports his measurements for additional Kreutz sungrazing comets found by X. Leprette (C/1996 B5) and M. Oates on SOHO website C3 coronagraph images (and also C2 images for C/2001 S2). The reduced observations and orbital elements by B. G. Marsden are included on MPEC 2001-T15.
Comet 1996 UT R.A. (2000) Decl.
C/1996 B5 Jan. 29.352 21 01.4 -19 25
C/1996 R4 Sept.14.804 11 19.4 + 2 24
Comet 2001 UT R.A. (2000) Decl.
C/2001 S2 Sept.28.154 11 58.1 - 3 01
[IAUC 7730, 2001 October 9]
Further to IAUC 7730, D. Hammer reports his measurements for two additional sungrazing comets found by X. Leprette and R. Kracht on SOHO website images. Full information appears on MPEC 2001-T52.
Comet 2001 UT R.A. (2000) Decl.
C/2001 T1 Oct. 9.104 12 54.5 - 4 15
C/2001 T2 12.154 12 50.1 - 8 50
[IAUC 7741, 2001 October 29]
Further to IAUC 7741, D. Hammer reports measurements of additional sungrazing comets visible in the C2 coronagraph and found on SOHO website images by X. Leprette (C/2001 U1, C/2001 U2), S. Hoenig (C/2001 U3, C/2001 U4), and M. Boschat (C/2001 U5); C/2001 U3, C/2001 U4, and C/2001 U5 were also seen in C3 images. The reduced astrometry and orbital elements by B. G. Marsden appear on the MPECs cited below.
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 U1 Oct. 16.535 13 18.0 - 9 45 2001-V10 C/2001 U2 17.368 13 21.1 -10 08 2001-V19 C/2001 U3 17.071 13 09.6 -10 40 2001-V19 C/2001 U4 17.013 13 01.4 -11 20 2001-V19 C/2001 U5 18.388 13 18.0 -11 05 2001-V19[IAUC 7746, 2001 November 6]
Further to IAUC 7746, D. Hammer reports his measurements of additional sungrazing comets found on SOHO website images by X. M. Zhou (C/2001 T5), R. Kracht (C/2001 T6), M. Oates (C/2001 T7), and S. Hoenig (C/2001 U7). All the objects were seen in the C2 coronagraph except for C/2001 T5 (the only non-Kreutz object, seen only in C3); C/2001 T7 and C/2001 U7 were also seen in C3. The reduced astrometry and orbital elements by B. G. Marsden appear on the MPECs cited below.
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 T5 Oct. 14.863 13 17.3 - 3 45 2001-V10 C/2001 T6 15.535 13 14.0 - 9 25 2001-V10 C/2001 T7 6.513 12 33.0 - 6 07 2001-V19 C/2001 U7 18.513 13 07.1 -12 16 2001-V31[IAUC 7750, 2001 November 10] Further to IAUC 7750, D. Hammer reports his measurements of additional Kreutz sungrazing comets found on SOHO website images by R. Kracht (C/2001 U8, C/2001 U10), X. M. Zhou (C/2001 U9), T. Scarmato (C/2001 V1), and A. and M. Mimeev (C/2001 V2). All the objects were seen in the C2 coronagraph. According to D. Biesecker, C/2001 U9 was a bright comet, visible from the edge of the C3 field-of-view until it disappeared behind the C2 occulter; it appears to have saturated the detectors in both telescopes. The reduced astrometry and orbital elements by B. G. Marsden appear on the MPECs cited below.
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 U8 Oct. 18.601 13 25.9 -10 37 2001-V39 C/2001 U9 22.096 13 14.1 -13 47 2001-V39 C/2001 U10 31.021 14 15.6 -15 12 2001-V60 C/2001 V1 Nov. 1.413 14 23.8 -15 54 2001-W47 C/2001 V2 4.132 14 31.9 -16 31 2001-W47[IAUC 7759, 2001 November 21] Further to IAUC 7759, D. Hammer reports his measurements of an additional Kreutz sungrazing comet found by X. Leprette on SOHO website images that were taken with the C3 coronagraph. The reduced astrometry and orbital elements by B. G. Marsden appear on MPEC 2001-V60.
1996 UT R.A. (2000) Decl.
Nov. 8.115 14 43.0 -18 55
[IAUC 7760, 2001 November 23]
Further to IAUC 7760, D. Hammer reports his measurements of additional Kreutz sungrazing comets found by A. Mimeev (C/2001 V5), X. Leprette (C/2001 W4), and X. Zhou (remaining comets) on SOHO website images that were taken with the C2 coronagraph. The reduced astrometry and orbital elements by B. G. Marsden appear on MPEC 2001-X02.
Comet 2001 UT R.A. (2000) Decl.
C/2001 V3 Nov. 11.311 15 03.7 -18 56
C/2001 V4 12.713 15 09.1 -19 18
C/2001 V5 14.088 15 14.8 -19 41
C/2001 W3 22.329 15 51.0 -21 48
C/2001 W4 26.479 16 09.5 -22 44
[IAUC 7764, 2001 December 3]
Further to IAUC 7764, several additional comets have been found on SOHO website images by S. Hoenig (C/2001 X4, X9), M. Meyer (C/2001 X5, X6), M. Boschat (C/2001 X7, Y5), A. Mimeev (C/2001 X8), and X. Zhou (C/2001 Y2, Y3, Y4). Astrometry (measurements by D. Hammer, reduction by B. G. Marsden) and orbital elements appear on the MPECs cited below. All but C/2001 X8 (q about 0.037 AU, i about 72 deg) appear to be Kreutz sungrazers; all the comets were visible in the C2 coronograph (C/2001 Y5, which was fairly bright with a long tail, was also visible in C3).
Comet 2001 UT R.A. (2000) Decl. MPEC C/2001 X4 Dec. 2.396 16 36.7 -23 47 2002-A49 C/2001 X5 4.455 16 46.3 -24 08 2002-A49 C/2001 X6 6.246 16 54.1 -24 18 2002-A49 C/2001 X7 7.979 17 04.4 -24 34 2002-A49 C/2001 X8 12.671 17 20.8 -22 17 2002-B01 C/2001 X9 12.814 17 25.0 -25 00 2002-B01 C/2001 Y2 16.463 17 42.6 -25 09 2002-B01 C/2001 Y3 16.521 17 44.0 -24 39 2002-B01 C/2001 Y4 18.246 17 50.2 -25 16 2002-B04 C/2001 Y5 21.529 18 08.4 -28 20 2002-B04[IAUC 7797, 2002 January 19]