MPEC 2007-B19 : COMET P/2006 W4 (HILL)
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M.P.E.C. 2007-B19 Issued 2007 Jan. 19, 19:08 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET P/2006 W4 (HILL)
Observations:
PK06W040 C2006 12 27.20329 02 57 49.06 +23 06 47.4 19.6 T EB019703
PK06W040 C2006 12 27.21414 02 57 48.88 +23 06 42.9 19.8 T EB019703
PK06W040 C2006 12 27.22502 02 57 48.85 +23 06 40.8 19.9 T EB019703
PK06W040 C2006 12 27.23594 02 57 48.52 +23 06 38.0 19.8 T EB019703
PK06W040 C2007 01 17.16199 02 55 58.03 +21 31 06.5 19.4 T EB019G96
PK06W040 C2007 01 17.16903 02 55 58.00 +21 31 04.9 19.4 T EB019G96
PK06W040 C2007 01 17.17611 02 55 58.04 +21 31 03.1 19.6 T EB019G96
PK06W040 C2007 01 17.18300 02 55 58.05 +21 31 01.8 EB019G96
Observer details:
703 Catalina Sky Survey. Observer A. R. Gibbs. Measurers E. C. Beshore,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson. 0.68-m Schmidt + CCD.
G96 Mt. Lemmon Survey. Observer R. E. Hill. Measurers E. C. Beshore,
E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill,
R. A. Kowalski, S. M. Larson. 1.5-m reflector + CCD.
Orbital elements:
P/2006 W4 (Hill)
T 2009 Jan. 20.6206 TT MPC
q 4.433293 (2000.0) P Q
n 0.0596242 Peri. 249.6850 -0.5182376 -0.6715735
a 6.489144 Node 243.2641 +0.8173606 -0.5711484
e 0.316814 Incl. 36.3657 -0.2516972 -0.4719942
P 16.5
From 79 observations 2006 Nov. 19-2007 Jan. 17.
Ephemeris:
P/2006 W4 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 01 10 02 55.95 +22 00.7 4.920 5.459 118.6 9.1 19.3
2007 01 20 02 56.16 +21 20.4 5.047 5.437 108.3 9.9 19.4
2007 01 30 02 57.68 +20 47.2 5.183 5.415 98.4 10.4 19.4
2007 02 09 03 00.43 +20 20.9 5.324 5.393 88.7 10.5 19.4
2007 02 19 03 04.31 +20 01.1 5.464 5.372 79.4 10.4 19.5
2007 03 01 03 09.22 +19 47.0 5.600 5.350 70.4 10.0 19.5
2007 03 11 03 15.04 +19 37.7 5.727 5.328 61.7 9.4 19.6
2007 03 21 03 21.65 +19 32.3 5.843 5.307 53.2 8.6 19.6
2007 03 31 03 28.96 +19 29.7 5.945 5.286 44.9 7.7 19.6
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-B19
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