MPEC 2007-U64 : COMET P/2007 S1 (ZHAO)
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M.P.E.C. 2007-U64 Issued 2007 Oct. 23, 16:32 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/2007 S1 (ZHAO)
Observations:
PK07S010 C2007 10 09.91582 00 34 58.06 -04 15 21.2 18.2 T EU064585
PK07S010 C2007 10 09.92672 00 34 57.95 -04 15 29.9 18.7 N EU064585
PK07S010 C2007 10 09.93097 00 34 57.70 -04 15 33.0 18.8 N EU064585
PK07S010 C2007 10 16.83420 00 31 03.87 -04 48 35.4 18.9 N EU064A77
PK07S010 C2007 10 16.85241 00 31 03.29 -04 48 43.7 18.6 N EU064A77
Observer details:
585 Kiev comet station. Observer A. Baransky. 0.7-m f/4 reflector + CCD.
A77 Observatoire Chante-Perdrix, Dauban. Observers C. Rinner, F. Kugel.
Measurer F. Kugel. 0.5-m f/3 reflector + CCD.
Orbital elements:
P/2007 S1 (Zhao)
T 2007 Dec. 6.7033 TT MPC
q 2.494380 (2000.0) P Q
n 0.1331371 Peri. 245.3891 +0.8878987 -0.4554795
a 3.798423 Node 141.6164 +0.4506868 +0.8330536
e 0.343312 Incl. 5.9725 +0.0922890 +0.3139429
P 7.40
From 68 observations 2007 Sept. 8-Oct. 16.
Ephemeris:
P/2007 S1 (Zhao)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 10 17 00 30.98 -04 49.3 1.553 2.515 160.6 7.6 18.0
2007 10 27 00 26.41 -05 22.6 1.598 2.508 150.0 11.4 18.0
2007 11 06 00 23.69 -05 36.5 1.664 2.502 139.5 14.9 18.1
2007 11 16 00 23.23 -05 29.8 1.748 2.498 129.6 17.8 18.2
2007 11 26 00 25.19 -05 03.7 1.848 2.495 120.3 20.0 18.3
2007 12 06 00 29.47 -04 20.3 1.958 2.494 111.5 21.6 18.4
2007 12 16 00 35.91 -03 22.3 2.078 2.495 103.3 22.6 18.6
2007 12 26 00 44.26 -02 12.1 2.202 2.497 95.6 23.1 18.7
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-U64
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