MPEC 2010-A85 : COMET P/2010 A3 (HILL)
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M.P.E.C. 2010-A85 Issued 2010 Jan. 15, 23:21 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
COMET P/2010 A3 (HILL)
Observations:
PK10A030 C2009 10 14.87644 02 22 22.67 -01 49 24.0 18.9 N EA085J75
PK10A030 C2009 10 14.88953 02 22 21.99 -01 49 26.3 18.7 N EA085J75
PK10A030 C2009 10 14.90273 02 22 21.46 -01 49 27.8 17.9 N EA085J75
PK10A030 C2010 01 09.47935 01 45 08.35 +08 34 31.2 EA085372
PK10A030 C2010 01 09.48353 01 45 08.53 +08 34 35.8 EA085372
PK10A030 C2010 01 09.48750 01 45 08.71 +08 34 38.6 EA085372
PK10A030 C2010 01 09.54099 01 45 11.28 +08 35 27.9 17.7 N EA085372
PK10A030 C2010 01 10.42885 01 45 56.30 +08 49 15.3 17.5 T EA085D92
PK10A030 C2010 01 10.43914 01 45 56.87 +08 49 24.4 18.0 N EA085D92
PK10A030 C2010 01 10.44502 01 45 57.13 +08 49 29.8 19.0 N EA085D93
PK10A030 C2010 01 10.44683 01 45 57.17 +08 49 30.9 19.1 N EA085D93
PK10A030 C2010 01 10.44864 01 45 57.34 +08 49 34.2 19.0 N EA085D93
PK10A030 C2010 01 10.78738 01 46 14.97 +08 54 49.6 16.9 N EA085A77
PK10A030 C2010 01 10.80134 01 46 15.73 +08 55 02.6 17.1 N EA085A77
PK10A030 C2010 01 10.81181 01 46 16.43 +08 55 17.8 EA085B40
PK10A030 C2010 01 10.81445 01 46 16.60 +08 55 19.4 18.8 N EA085B40
PK10A030 C2010 01 10.81711 01 46 16.66 +08 55 20.3 EA085B40
PK10A030 C2010 01 10.81898 01 46 16.60 +08 55 19.1 17.1 N EA085A77
PK10A030 C2010 01 11.08912 01 46 30.79 +08 59 33.8 EA085H06
PK10A030 C2010 01 11.09276 01 46 30.95 +08 59 36.8 EA085H06
PK10A030 C2010 01 11.09641 01 46 31.11 +08 59 40.0 17.9 T EA085H06
PK10A030 C2010 01 13.45644 01 48 41.32 +09 36 51.2 EA085372
PK10A030 C2010 01 13.46434 01 48 41.78 +09 36 59.3 EA085372
PK10A030 C2010 01 13.46925 01 48 42.05 +09 37 02.9 17.3 N EA085372
PK10A030 C2010 01 15.76506 01 50 59.60 +10 13 44.5 17.1 N EA085A77
PK10A030 C2010 01 15.77282 01 51 00.08 +10 13 52.2 17.1 N EA085A77
PK10A030 C2010 01 15.78212 01 51 00.60 +10 14 01.0 17.0 N EA085A77
Observer details:
372 Geisei. Observers T. Seki, K. Muraoka, S. Shimomoto. 0.70-m f/7
reflector + CCD.
A77 Observatoire Chante-Perdrix, Dauban. Observers C. Rinner, F. Kugel.
Measurer F. Kugel. 0.5-m f/3 reflector + CCD.
B40 Skylive Observatory, Catania. Observers P. Camilleri, E. Guido, M. Jaeger,
E. Prosperi, G. Sostero, W. Vollmann. Measurer E. Prosperi. 0.30-m f/6
Schmidt-Cassegrain + CCD.
D92 Osaki. Observer T. Yusa. 0.30-m f/8.2 Cassegrain + CCD.
D93 Sendai Astronomical Observatory. Observer M. Koishikawa. 1.3-m f/4.85
reflector + CCD.
H06 RAS Observatory, Mayhill. Observer H. Sato. 0.25-m f/3.4 reflector + CCD.
J75 OAM Observatory, La Sagra. Observers S. Sanchez, J. Nomen, R. Stoss,
W. K. Y. Yeung, J. Rodriguez. 0.45-m f/2.8 reflector + CCD.
Prediscovery observations identified by M. Meyer.
Orbital elements:
P/2010 A3 (Hill)
Epoch 2010 Mar. 25.0 TT = JDT 2455280.5
T 2010 Apr. 3.68038 TT MPC
q 1.6217744 (2000.0) P Q
n 0.06616645 Peri. 41.28249 -0.25711556 -0.93745814
a 6.0540241 Node 64.83065 +0.80459133 -0.34216152
e 0.7321163 Incl. 15.02697 +0.53527973 +0.06401346
P 14.90
Residuals in seconds of arc
091014 J75 0.0 0.8+ 100108 J41 0.5- 0.2- 100109 372 0.0 0.9-
091014 J75 0.8- 0.3- 100108 J41 1.0- 0.2+ 100110 D92 0.4- 0.5+
091014 J75 0.8+ 0.6- 100108 J41 0.2- 0.7- 100110 D92 0.5+ 0.0
100108 703 0.4+ 0.3- 100108 J41 0.8- 0.0 100110 D93 0.0 0.1-
100108 703 0.2- 0.7+ 100108 J41 0.4- 0.4- 100110 D93 0.7- 0.6-
100108 703 1.0- 0.2- 100109 I20 0.3- 0.4- 100110 D93 0.5+ 1.0+
100108 703 0.6+ 0.1- 100109 I20 0.4+ 0.4- 100110 A77 0.4+ 0.2+
100108 673 0.9- 0.1+ 100109 I20 1.0+ 0.2- 100110 A77 1.2+ 0.1+
100108 673 0.5- 0.0 100109 H06 0.4+ 0.3+ 100110 B40 (4.6+ 5.0+)
100108 G96 0.2+ 0.2- 100109 H06 0.4+ 0.2+ 100110 B40 (5.2+ 4.2+)
100108 G96 1.7+ 0.1+ 100109 H06 0.4+ 0.2+ 100110 B40 (4.1+ 2.6+)
100108 673 0.5- 0.1+ 100109 H01 0.4- 0.0 100110 A77 0.9+ 0.1+
100108 G96 1.1+ 0.1+ 100109 H01 0.5- 0.1+ 100111 H06 0.1+ 0.7+
100108 G96 0.5+ 0.2- 100109 H06 0.1+ 0.3+ 100111 H06 0.3- 0.3+
100108 673 0.2- 0.9+ 100109 H01 0.5- 0.1- 100111 H06 0.6- 0.1+
100108 854 1.5+ 0.3+ 100109 H01 0.6- 0.0 100113 372 0.2- 0.3+
100108 854 1.4- 1.0+ 100109 H06 0.1+ 0.1- 100113 372 0.1+ 0.9+
100108 114 0.4- 0.3- 100109 372 0.4+ 0.6- 100113 372 0.0 0.1-
100108 114 0.4- 0.4- 100109 372 0.1+ 0.1+ 100115 A77 0.0 0.4-
100108 114 0.1+ 0.3- 100109 372 0.0 0.7- 100115 A77 0.2+ 0.2-
100108 114 0.1+ 0.1- 100109 349 0.2+ 0.4- 100115 A77 0.5- 0.4-
100108 114 0.1+ 0.2- 100109 349 0.2- 0.1+
Ephemeris:
P/2010 A3 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2010 01 14 01 49.22 +09 45.5 1.488 1.857 95.3 31.8 17.6
2010 01 24 02 00.62 +12 29.2 1.537 1.806 88.7 33.0 17.5
2010 02 03 02 15.12 +15 19.4 1.587 1.760 82.8 33.8 17.5
2010 02 13 02 32.59 +18 12.5 1.636 1.719 77.6 34.1 17.4
2010 02 23 02 52.92 +21 04.8 1.684 1.685 72.9 34.2 17.4
2010 03 05 03 16.02 +23 51.5 1.733 1.658 68.9 33.9 17.4
2010 03 15 03 41.81 +26 27.7 1.782 1.638 65.3 33.5 17.4
2010 03 25 04 10.18 +28 47.8 1.832 1.626 62.1 32.8 17.4
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2010 MPC M.P.E.C. 2010-A85
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