MPEC 2004-L43 : COMET P/2004 HC18 (LINEAR)
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M.P.E.C. 2004-L43 Issued 2004 June 12, 17:15 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 24.23299 15 05 28.60 -01 08 40.5 17.1 T EL043785
PK04H18C C2004 05 24.25046 15 05 28.55 -01 08 12.6 16.9 T EL043785
PK04H18C 2004 05 24.61111 15 05 26.59 -00 58 31.5 17.0 T EL043372
PK04H18C C2004 05 29.95012 15 05 13.98 +01 16 21.3 16.7 N EL043J76
PK04H18C C2004 05 29.95094 15 05 13.98 +01 16 22.0 16.7 N EL043J76
PK04H18C C2004 05 29.95176 15 05 13.98 +01 16 23.3 16.7 N EL043J76
PK04H18C C2004 06 05.88448 15 05 55.58 +03 45 54.7 EL043170
PK04H18C C2004 06 05.88933 15 05 55.64 +03 45 59.8 EL043170
PK04H18C C2004 06 05.89094 15 05 55.65 +03 46 02.0 EL043170
PK04H18C C2004 06 07.34234 15 06 13.02 +04 13 27.8 16.7 T EL043703
PK04H18C C2004 06 07.35144 15 06 13.16 +04 13 39.0 16.8 T EL043703
PK04H18C C2004 06 07.36054 15 06 13.27 +04 13 48.8 17.0 T EL043703
PK04H18C C2004 06 07.36965 15 06 13.36 +04 13 58.0 17.0 T EL043703
PK04H18C C2004 06 07.88830 15 06 20.99 +04 23 25.0 EL043213
PK04H18C C2004 06 10.24690 15 06 59.12 +05 04 14.8 17.7 T EL043704
PK04H18C C2004 06 10.25635 15 06 59.24 +05 04 24.4 17.8 T EL043704
PK04H18C C2004 06 10.26580 15 06 59.38 +05 04 34.2 17.9 T EL043704
PK04H18C C2004 06 10.27525 15 06 59.53 +05 04 43.6 18.3 T EL043704
PK04H18C C2004 06 10.28479 15 06 59.65 +05 04 53.7 17.7 T EL043704
PK04H18C C2004 06 11.25248 15 07 18.19 +05 20 32.9 16.7 T EL043699
PK04H18C C2004 06 11.26543 15 07 18.41 +05 20 45.9 EL043699
PK04H18C C2004 06 11.27840 15 07 18.55 +05 20 57.1 EL043699
PK04H18C C2004 06 11.29137 15 07 18.82 +05 21 11.3 EL043699
Observer details:
170 Observatorio de Begues. Observer J. Manteca. 0.36-m f/6.3
Schmidt-Cassegrain + CCD.
213 Observatorio Montcabre. Observer R. Naves. Measurer M. Campas. 0.30-m
f/6.6 Schmidt-Cassegrain + CCD.
372 Geisei. Observer T. Seki. 0.60-m f/3.5 reflector.
699 Lowell Observatory-LONEOS. Observer M. E. Van Ness. 0.59-m LONEOS
Schmidt + 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.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
H. Stange, A. Milner. Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers.
1.0-m f/2.15 reflector + CCD.
785 Fitz-Randolph Observatory, Princeton. Observer J. Maffei. 0.91-m f/13.6
Cassegrain + CCD.
J76 La Murta. Observer S. Pastor, J. A. Reyes. 0.40-m f/3.3
Schmidt-Cassegrain + CCD.
Orbital elements:
P/2004 HC18 (LINEAR)
T 2004 June 18.6680 TT MPC
q 1.711561 (2000.0) P Q
n 0.1511611 Peri. 30.8341 -0.3626242 +0.8966386
a 3.490138 Node 219.5612 -0.9155304 -0.3936731
e 0.509601 Incl. 23.5087 -0.1740910 +0.2026344
P 6.52
From 127 observations 2004 Apr. 17-June 11.
Ephemeris:
P/2004 HC18 (LINEAR)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2004 06 04 15 05.62 +03 08.4 0.789 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 52.8 0.901 1.712 126.4 28.6 18.7
2004 07 04 15 22.03 +08 49.4 0.973 1.718 119.3 31.1 18.9
2004 07 14 15 32.76 +09 02.5 1.052 1.728 113.3 32.7 19.2
2004 07 24 15 45.70 +08 42.1 1.137 1.743 108.0 33.7 19.4
Brian G. Marsden (C) Copyright 2004 MPC M.P.E.C. 2004-L43
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