MPEC 2009-O22 : COMETS C/2009 L12, 2009 L13, 2009 L14, 2009 L15 (SOHO)
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M.P.E.C. 2009-O22 Issued 2009 July 21, 22:08 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/mpc.html ISSN 1523-6714
COMETS C/2009 L12, 2009 L13, 2009 L14, 2009 L15 (SOHO)
Observations:
CK09L120 2S2009 06 08.89314 05 02 41.4 +20 54 27 EO022249
CK09L120 2s2009 06 08.89314 2 -0.00216083 +0.00875422 +0.00401646 EO022249
CK09L120 2S2009 06 08.90976 05 02 44.6 +20 58 19 EO022249
CK09L120 2s2009 06 08.90976 2 -0.00216428 +0.00875459 +0.00401616 EO022249
CK09L120 2S2009 06 08.92087 05 02 46.4 +21 00 43 EO022249
CK09L120 2s2009 06 08.92087 2 -0.00216659 +0.00875483 +0.00401596 EO022249
CK09L120 2S2009 06 08.93477 05 02 49.3 +21 03 58 EO022249
CK09L120 2s2009 06 08.93477 2 -0.00216948 +0.00875513 +0.00401570 EO022249
CK09L120 2S2009 06 08.96255 05 02 53.7 +21 11 07 EO022249
CK09L120 2s2009 06 08.96255 2 -0.00217524 +0.00875573 +0.00401520 EO022249
CK09L120 2S2009 06 08.97643 05 02 58.5 +21 14 21 EO022249
CK09L120 2s2009 06 08.97643 2 -0.00217813 +0.00875602 +0.00401495 EO022249
CK09L120 2S2009 06 08.99310 05 03 01.8 +21 18 33 EO022249
CK09L120 2s2009 06 08.99310 2 -0.00218158 +0.00875638 +0.00401464 EO022249
CK09L120 2S2009 06 09.00421 05 03 05.0 +21 21 39 EO022249
CK09L120 2s2009 06 09.00421 2 -0.00218385 +0.00875668 +0.00401449 EO022249
CK09L120 2S2009 06 09.01811 05 03 08.4 +21 25 09 EO022249
CK09L120 2s2009 06 09.01811 2 -0.00218673 +0.00875698 +0.00401424 EO022249
CK09L130 2S2009 06 09.18476 05 12 07.8 +23 26 10 EO022249
CK09L130 2s2009 06 09.18476 2 -0.00222122 +0.00876051 +0.00401117 EO022249
CK09L130 2S2009 06 09.20143 05 12 38.0 +23 26 54 EO022249
CK09L130 2s2009 06 09.20143 2 -0.00222466 +0.00876086 +0.00401087 EO022249
CK09L130 2S2009 06 09.21254 05 12 57.7 +23 27 36 EO022249
CK09L130 2s2009 06 09.21254 2 -0.00222696 +0.00876109 +0.00401066 EO022249
CK09L130 2S2009 06 09.22643 05 13 22.4 +23 28 16 EO022249
CK09L130 2s2009 06 09.22643 2 -0.00222983 +0.00876139 +0.00401040 EO022249
CK09L130 2S2009 06 09.24310 05 13 50.5 +23 28 40 EO022249
CK09L130 2s2009 06 09.24310 2 -0.00223326 +0.00876173 +0.00401009 EO022249
CK09L130 2S2009 06 09.25423 05 14 10.1 +23 29 18 EO022249
CK09L130 2s2009 06 09.25423 2 -0.00223556 +0.00876197 +0.00400989 EO022249
CK09L130 2S2009 06 09.26811 05 14 34.5 +23 29 41 EO022249
CK09L130 2s2009 06 09.26811 2 -0.00223843 +0.00876226 +0.00400963 EO022249
CK09L130 2S2009 06 09.28476 05 15 02.1 +23 30 30 EO022249
CK09L130 2s2009 06 09.28476 2 -0.00224186 +0.00876260 +0.00400932 EO022249
CK09L130 2S2009 06 09.31056 05 15 46.5 +23 31 15 EO022249
CK09L130 2s2009 06 09.31056 2 -0.00224718 +0.00876314 +0.00400884 EO022249
CK09L140 2S2009 06 10.18478 05 09 49.2 +21 08 50 EO022249
CK09L140 2s2009 06 10.18478 2 -0.00242579 +0.00878037 +0.00399210 EO022249
CK09L140 2S2009 06 10.20143 05 09 50.4 +21 11 56 EO022249
CK09L140 2s2009 06 10.20143 2 -0.00242916 +0.00878069 +0.00399177 EO022249
CK09L140 2S2009 06 10.21255 05 09 51.8 +21 13 46 EO022249
CK09L140 2s2009 06 10.21255 2 -0.00243141 +0.00878089 +0.00399156 EO022249
CK09L140 2S2009 06 10.22643 05 09 52.7 +21 16 45 EO022249
CK09L140 2s2009 06 10.22643 2 -0.00243422 +0.00878115 +0.00399128 EO022249
CK09L140 2S2009 06 10.24310 05 09 54.5 +21 20 05 EO022249
CK09L140 2s2009 06 10.24310 2 -0.00243760 +0.00878146 +0.00399095 EO022249
CK09L140 2S2009 06 10.25421 05 09 54.8 +21 22 33 EO022249
CK09L140 2s2009 06 10.25421 2 -0.00243984 +0.00878167 +0.00399073 EO022249
CK09L140 2S2009 06 10.26810 05 09 57.6 +21 24 59 EO022249
CK09L140 2s2009 06 10.26810 2 -0.00244265 +0.00878193 +0.00399046 EO022249
CK09L140 2S2009 06 10.28477 05 09 58.9 +21 28 36 EO022249
CK09L140 2s2009 06 10.28477 2 -0.00244602 +0.00878224 +0.00399013 EO022249
CK09L150 2S2009 06 10.90976 05 12 11.8 +21 10 45 EO022249
CK09L150 2s2009 06 10.90976 2 -0.00257162 +0.00879337 +0.00397755 EO022249
CK09L150 2S2009 06 10.92087 05 12 12.8 +21 13 00 EO022249
CK09L150 2s2009 06 10.92087 2 -0.00257384 +0.00879356 +0.00397732 EO022249
CK09L150 2S2009 06 10.93476 05 12 17.2 +21 15 34 EO022249
CK09L150 2s2009 06 10.93476 2 -0.00257661 +0.00879380 +0.00397704 EO022249
CK09L150 2S2009 06 10.96254 05 12 19.9 +21 20 42 EO022249
CK09L150 2s2009 06 10.96254 2 -0.00258215 +0.00879428 +0.00397647 EO022249
CK09L150 2S2009 06 10.97643 05 12 21.0 +21 23 25 EO022249
CK09L150 2s2009 06 10.97643 2 -0.00258492 +0.00879451 +0.00397618 EO022249
CK09L150 2S2009 06 10.99310 05 12 22.8 +21 26 40 EO022249
CK09L150 2s2009 06 10.99310 2 -0.00258825 +0.00879479 +0.00397584 EO022249
CK09L150 2S2009 06 11.00421 05 12 25.6 +21 28 48 EO022249
CK09L150 2s2009 06 11.00421 2 -0.00259047 +0.00879498 +0.00397561 EO022249
CK09L150 2S2009 06 11.01809 05 12 28.2 +21 31 40 EO022249
CK09L150 2s2009 06 11.01809 2 -0.00259323 +0.00879522 +0.00397533 EO022249
CK09L150 2S2009 06 11.03477 05 12 29.9 +21 34 58 EO022249
CK09L150 2s2009 06 11.03477 2 -0.00259656 +0.00879550 +0.00397498 EO022249
CK09L150 2S2009 06 11.06058 05 12 35.0 +21 40 25 EO022249
CK09L150 2s2009 06 11.06058 2 -0.00260170 +0.00879593 +0.00397445 EO022249
CK09L150 2S2009 06 11.07644 05 12 37.2 +21 44 06 EO022249
CK09L150 2s2009 06 11.07644 2 -0.00260486 +0.00879620 +0.00397412 EO022249
CK09L150 2S2009 06 11.08754 05 12 39.8 +21 46 11 EO022249
CK09L150 2s2009 06 11.08754 2 -0.00260707 +0.00879639 +0.00397389 EO022249
Observer details:
249 SOHO. SOHO-LASCO coronagraph C2. Comet detections by B. Zhou, R. Kracht
and R. Matson, measurements by K. Battams, reductions by B. G. Marsden.
Orbital elements:
Comet T q e Peri. Node Incl. C
CK09L120 2009 June 9.29 0.0079 1.0 61.76 337.68 138.29 X
CK09L130 2009 June 9.16 0.0438 1.0 78.34 20.11 11.27 X
CK09L140 2009 June 10.59 0.0049 1.0 65.79 343.73 144.33 X
CK09L150 2009 June 11.39 0.0053 1.0 86.91 8.54 142.27 X
It seems rather likely that the two Kracht group comets C/2009 L8 and
C/2009 L13 (for the former, see MPEC 2009-O21) were previously observed as one
(or maybe two) of the Kracht members of May 2004 (C/2004 J4, 2004 J12,
2004 J13, 2004 J15, 2004 J16, 2004 J17, 2004 J18 and 2004 J20; see MPEC
2004-M71, 2004-N04, 2004-N05 and 2007-K65). Identity with comets C/2004 A3 or
C/2004 B3 (suggested by K. Battams) or with C/2004 L10 (which itself was
perhaps a return of comet C/1999 M3) seems a less likely prospect. Given the
poor quality of the observations, the computation of a definite linkage is
further complicated by the fact that there would be an approach to within some
1.2 AU of Jupiter in 2008.
Brian G. Marsden (C) Copyright 2009 MPC M.P.E.C. 2009-O22
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