MPEC 2004-K42 : COMET P/2004 HC18 (LINEAR)
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M.P.E.C. 2004-K42 Issued 2004 May 22, 20:11 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.
Supported in part by the Steven and Michele Kirsch Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET P/2004 HC18 (LINEAR)
Observations:
PK04H18C C2004 05 12.23439 15 07 37.49 -07 01 06.6 16.2 T EK042785
PK04H18C C2004 05 12.24225 15 07 37.31 -07 00 53.5 16.4 T EK042785
PK04H18C 2004 05 14.60764 15 07 05.86 -05 47 49.1 16.9 T EK042372
PK04H18C C2004 05 16.31272 15 06 43.97 -04 55 59.0 17.6 N EK042H41
PK04H18C C2004 05 16.31464 15 06 43.95 -04 55 55.3 17.5 N EK042H41
PK04H18C C2004 05 16.31639 15 06 43.94 -04 55 51.9 17.6 N EK042H41
PK04H18C C2004 05 16.31813 15 06 43.93 -04 55 49.4 17.6 N EK042H41
PK04H18C C2004 05 17.95147 15 06 24.86 -04 06 58.5 17.1 T EK042215
PK04H18C C2004 05 17.95186 15 06 24.86 -04 06 57.7 17.3 T EK042215
PK04H18C C2004 05 17.95226 15 06 24.84 -04 06 57.4 17.3 T EK042215
PK04H18C C2004 05 18.90352 15 06 14.59 -03 38 53.5 16.8 N EK042442
PK04H18C C2004 05 18.90435 15 06 14.56 -03 38 52.2 16.8 N EK042442
PK04H18C C2004 05 19.15618 15 06 11.92 -03 31 29.5 17.8 N EK042H41
PK04H18C C2004 05 19.15779 15 06 11.92 -03 31 27.0 18.0 N EK042H41
PK04H18C C2004 05 19.15924 15 06 11.91 -03 31 23.3 17.8 N EK042H41
PK04H18C C2004 05 19.16069 15 06 11.89 -03 31 21.3 17.8 N EK042H41
PK04H18C C2004 05 19.95528 15 06 03.42 -03 08 17.4 17.5 N EK042151
PK04H18C C2004 05 19.95777 15 06 03.41 -03 08 12.7 17.8 N EK042151
PK04H18C C2004 05 19.95907 15 06 03.36 -03 08 10.3 17.8 N EK042151
PK04H18C C2004 05 19.96144 15 06 03.35 -03 08 06.4 17.6 N EK042151
PK04H18C C2004 05 20.31362 15 05 59.65 -02 57 55.6 17.6 N EK042H41
PK04H18C C2004 05 20.31557 15 05 59.58 -02 57 53.1 17.5 N EK042H41
PK04H18C C2004 05 20.31782 15 05 59.57 -02 57 48.3 17.6 N EK042H41
PK04H18C C2004 05 20.31983 15 05 59.52 -02 57 44.8 17.6 N EK042H41
PK04H18C C2004 05 21.34846 15 05 50.05 -02 28 24.3 16.6 T EK042703
PK04H18C C2004 05 21.35985 15 05 49.92 -02 28 03.9 16.6 T EK042703
PK04H18C C2004 05 21.37125 15 05 49.75 -02 27 44.7 16.8 T EK042703
PK04H18C C2004 05 21.38259 15 05 49.63 -02 27 25.6 16.9 T EK042703
Observer details:
151 Eschenberg Observatory, Winterthur. Observer M. Griesser. 0.40-m f/5.8
Cassegrain + CCD.
215 Buchloe. Observer W. Hasubick. 0.44-m f/4.6 reflector + CCD.
372 Geisei. Observer T. Seki. 0.60-m f/3.5 reflector.
442 Gualba Observatory. Observer A. Sanchez. 0.31-m f/3.3 Schmidt-Cassegrain
+ CCD.
703 Catalina Sky Survey. Observers S. Larson, E. Beshore, E. Christensen,
R. Hill, S. Howard, D. McLean. 0.68-m f/1.8 Schmidt + CCD.
785 Fitz-Randolph Observatory, Princeton. Observer J. Maffei. 0.91-m f/13.6
Cassegrain + CCD.
H41 Petit Jean Mountain. Observer P. C. Sherrod. 0.41-m f/3.7
Schmidt-Cassegrain + CCD.
Orbital elements:
P/2004 HC18 (LINEAR)
T 2004 June 18.6635 TT MPC
q 1.711844 (2000.0) P Q
n 0.1510089 Peri. 30.8268 -0.3627320 +0.8965660
a 3.492484 Node 219.5629 -0.9154970 -0.3937764
e 0.509849 Incl. 23.5179 -0.1740422 +0.2027550
P 6.53
From 79 observations 2004 Apr. 17-May 21.
Ephemeris:
P/2004 HC18 (LINEAR)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2004 05 15 15 07.01 -05 35.7 0.745 1.742 165.7 8.2 17.6
2004 05 25 15 05.41 -00 48.1 0.757 1.727 154.7 14.5 17.9
2004 06 04 15 05.62 +03 08.4 0.790 1.717 144.0 20.3 18.2
2004 06 14 15 08.31 +06 01.9 0.839 1.712 134.6 25.0 18.4
2004 06 24 15 13.79 +07 52.9 0.902 1.713 126.4 28.5 18.7
2004 07 04 15 22.03 +08 49.5 0.973 1.718 119.3 31.1 18.9
2004 07 14 15 32.76 +09 02.6 1.052 1.728 113.3 32.7 19.2
2004 07 24 15 45.69 +08 42.3 1.137 1.743 108.0 33.7 19.4
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-K42
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