MPEC 2010-A31 : COMET C/2010 A1 (HILL)
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M.P.E.C. 2010-A31 Issued 2010 Jan. 7, 22:52 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 C/2010 A1 (HILL)
Observations:
CK10A010 C2010 01 06.46381 09 11 26.44 +33 08 34.6 17.6 T EA031703
CK10A010 C2010 01 06.46997 09 11 26.08 +33 08 37.8 17.7 T EA031703
CK10A010 C2010 01 06.47618 09 11 25.72 +33 08 38.5 17.8 T EA031703
CK10A010 C2010 01 06.48228 09 11 25.44 +33 08 41.8 17.7 T EA031703
CK10A010 C2010 01 06.48838 09 11 25.33 +33 08 43.2 17.8 T EA031703
CK10A010 C2010 01 06.49448 09 11 25.08 +33 08 46.2 17.7 T EA031703
CK10A010 C2010 01 06.50065 09 11 24.72 +33 08 49.2 17.3 T EA031703
CK10A010 C2010 01 06.52757 09 11 23.65 +33 08 59.2 17.9 T EA031G96
CK10A010 C2010 01 06.52852 09 11 23.65 +33 09 00.1 17.7 T EA031G96
CK10A010 C2010 01 06.52947 09 11 23.57 +33 09 00.3 17.9 T EA031G96
CK10A010 C2010 01 06.53040 09 11 23.56 +33 09 00.1 17.8 T EA031G96
CK10A010 C2010 01 06.61328 09 11 20.71 +33 09 33.5 17.9 T EA031900
CK10A010 C2010 01 06.62041 09 11 20.38 +33 09 35.2 17.9 T EA031900
CK10A010 C2010 01 07.07288 09 11 01.64 +33 12 33.1 18.4 N EA031J95
CK10A010 C2010 01 07.08551 09 11 01.15 +33 12 38.2 18.8 N EA031J95
CK10A010 C2010 01 07.17920 09 10 57.61 +33 13 15.3 EA031H06
CK10A010 C2010 01 07.18470 09 10 57.28 +33 13 17.4 EA031H06
CK10A010 C2010 01 07.19020 09 10 56.86 +33 13 19.9 18.8 T EA031H06
CK10A010 C2010 01 07.23808 09 10 54.98 +33 13 38.6 EA031703
CK10A010 C2010 01 07.24439 09 10 54.69 +33 13 41.4 17.9 T EA031703
CK10A010 C2010 01 07.24688 09 10 54.58 +33 13 42.9 EA031703
CK10A010 C2010 01 07.25012 09 10 54.51 +33 13 44.2 EA031703
CK10A010 C2010 01 07.28371 09 10 53.12 +33 13 57.4 18.5 T EA031H01
CK10A010 C2010 01 07.29810 09 10 52.50 +33 14 03.1 18.7 T EA031H01
CK10A010 C2010 01 07.30902 09 10 52.02 +33 14 07.5 18.7 T EA031H01
CK10A010 C2010 01 07.31649 09 10 51.69 +33 14 10.4 18.7 T EA031H01
Observer details:
703 Catalina Sky Survey. Observer R. E. Hill. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson. 0.68-m Schmidt + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
G96 Mt. Lemmon Survey. Observer E. C. Beshore. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson. 1.5-m reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro. Observer W. H. Ryan. 2.4-m f/8.9
reflector + CCD.
H06 RAS Observatory, Mayhill. Observer H. Sato. 0.25-m f/3.4 reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
C/2010 A1 (Hill)
T 2010 June 24.055 TT MPC
q 1.02031 (2000.0) P Q
Peri. 219.047 -0.706221 +0.707655
Node 6.140 -0.587593 -0.568637
e 1.0 Incl. 11.782 -0.394951 -0.419377
From 25 observations 2010 Jan. 6-7.
Ephemeris:
C/2010 A1 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2010 01 04 09 12.98 +32 52.6 1.843 2.731 148.7 10.8 17.7
2010 01 14 09 05.39 +33 58.8 1.678 2.614 157.7 8.2 17.3
2010 01 24 08 54.30 +35 03.3 1.539 2.496 162.9 6.7 16.9
2010 02 03 08 40.27 +35 55.5 1.428 2.378 159.9 8.2 16.5
2010 02 13 08 24.53 +36 24.4 1.344 2.258 150.8 12.3 16.2
2010 02 23 08 09.03 +36 22.1 1.286 2.138 139.7 17.4 15.8
2010 03 05 07 55.83 +35 47.0 1.247 2.018 128.3 22.7 15.5
2010 03 15 07 46.56 +34 42.8 1.223 1.897 117.3 27.8 15.2
2010 03 25 07 42.19 +33 15.2 1.207 1.778 107.1 32.4 14.9
Brian G. Marsden (C) Copyright 2010 MPC M.P.E.C. 2010-A31
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