MPEC 2007-B56 : COMET P/2007 B1 (CHRISTENSEN)
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M.P.E.C. 2007-B56 Issued 2007 Jan. 26, 17:31 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/2007 B1 (CHRISTENSEN)
Observations:
PK07B010 C2007 01 20.25814 08 56 01.61 +32 53 42.7 19.7 T EB056H55
PK07B010 C2007 01 20.26146 08 56 01.49 +32 53 44.3 19.6 T EB056H55
PK07B010 C2007 01 20.26417 08 56 01.40 +32 53 45.6 19.6 T EB056H55
PK07B010 C2007 01 20.38299 08 55 57.67 +32 54 42.7 18.5 T EB056673
PK07B010 C2007 01 20.94687 08 55 40.18 +32 59 02.5 18.3 N EB056J70
PK07B010 C2007 01 21.03645 08 55 37.29 +32 59 46.1 18.2 N EB056232
PK07B010 C2007 01 21.06469 08 55 36.38 +32 59 58.3 18.9 N EB056232
PK07B010 C2007 01 21.09293 08 55 35.40 +33 00 12.0 18.8 N EB056232
PK07B010 C2007 01 22.72825 08 54 43.05 +33 12 43.3 EB056349
PK07B010 C2007 01 22.73255 08 54 42.89 +33 12 44.8 18.5 T EB056349
PK07B010 C2007 01 25.18858 08 53 22.02 +33 30 41.9 18.4 T EB056703
PK07B010 C2007 01 25.19965 08 53 21.62 +33 30 47.9 18.9 T EB056703
PK07B010 C2007 01 25.21073 08 53 21.30 +33 30 51.4 18.9 T EB056703
PK07B010 C2007 01 25.22187 08 53 20.86 +33 30 56.7 18.1 T EB056703
Observer details:
232 Masquefa Observatory. Observer E. Reina. 0.25-m f/3.3 Schmidt-Cassegrain
+ CCD.
349 Ageo. Observer K. Kadota. 0.25-m f/5.0 reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. Mayes. Measurer
J. Young. 0.61-m f/16 Cassegrain + CCD.
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.
H55 Astronomical Research Observatory, Charleston. Observer R. Holmes.
Measurer P. Miller. 0.81-m f/4.0 astrograph + CCD.
J70 Obs. Astronomico Vega del Thader, El Palmar. Observer J. P. Navarro P.
0.20-m Schmidt-Cassegrain + CCD.
Orbital elements:
P/2007 B1 (Christensen)
T 2007 Jan. 23.478 TT MPC
q 2.42919 (2000.0) P Q
n 0.071416 Peri. 48.443 -0.568494 -0.796202
a 5.75362 Node 77.369 +0.677445 -0.595866
e 0.57780 Incl. 12.251 +0.466780 -0.104910
P 13.8
From 47 observations 2007 Jan. 17-25.
Ephemeris:
P/2007 B1 (Christensen)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 01 20 08 56.16 +32 51.7 1.471 2.429 163.2 6.7 18.2
2007 01 30 08 50.60 +34 02.8 1.468 2.430 163.8 6.5 18.2
2007 02 09 08 44.94 +34 53.7 1.491 2.433 157.7 8.8 18.2
2007 02 19 08 40.39 +35 20.5 1.538 2.439 149.0 12.0 18.3
2007 03 01 08 37.95 +35 23.1 1.606 2.448 139.8 15.1 18.4
2007 03 11 08 38.17 +35 03.9 1.693 2.460 130.9 17.8 18.6
2007 03 21 08 41.20 +34 26.7 1.795 2.475 122.3 19.9 18.7
2007 03 31 08 46.90 +33 34.6 1.909 2.492 114.3 21.4 18.9
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-B56
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