MPEC 2007-B25 : COMET P/2007 B1 (CHRISTENSEN)
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M.P.E.C. 2007-B25 Issued 2007 Jan. 20, 16:17 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 17.27421 08 57 29.84 +32 29 41.0 18.6 T EB025703
PK07B010 C2007 01 17.28117 08 57 29.62 +32 29 45.3 18.8 T EB025703
PK07B010 C2007 01 17.28812 08 57 29.37 +32 29 49.0 18.6 T EB025703
PK07B010 C2007 01 17.29506 08 57 29.26 +32 29 52.2 18.9 T EB025703
PK07B010 C2007 01 17.32828 08 57 28.22 +32 30 08.7 18.3 T EB025703
PK07B010 C2007 01 17.33629 08 57 28.01 +32 30 12.6 EB025703
PK07B010 C2007 01 17.34425 08 57 27.78 +32 30 16.7 EB025703
PK07B010 C2007 01 17.35222 08 57 27.49 +32 30 21.4 EB025703
PK07B010 C2007 01 17.44252 08 57 24.67 +32 31 04.4 18.7 T EB025703
PK07B010 C2007 01 17.44450 08 57 24.58 +32 31 06.2 EB025703
PK07B010 C2007 01 18.05718 08 57 07.21 +32 36 04.6 18.9 N EB025118
PK07B010 C2007 01 18.05983 08 57 07.24 +32 36 06.8 EB025118
PK07B010 C2007 01 18.06366 08 57 07.08 +32 36 08.0 18.9 N EB025118
PK07B010 C2007 01 18.06778 08 57 06.89 +32 36 09.4 19.0 N EB025118
PK07B010 C2007 01 19.17181 08 56 34.82 +32 45 04.3 19.5 N EB025734
PK07B010 C2007 01 19.17839 08 56 34.62 +32 45 06.8 19.0 N EB025734
PK07B010 C2007 01 19.18351 08 56 34.47 +32 45 09.6 19.4 N EB025734
PK07B010 C2007 01 19.95252 08 56 11.08 +32 51 17.7 18.8 N EB025470
PK07B010 C2007 01 19.97302 08 56 10.38 +32 51 26.9 18.6 T EB025204
PK07B010 C2007 01 20.00207 08 56 09.46 +32 51 41.5 18.8 N EB025176
PK07B010 C2007 01 20.00346 08 56 09.42 +32 51 42.2 18.9 N EB025176
PK07B010 C2007 01 20.00624 08 56 09.32 +32 51 43.4 18.7 N EB025176
PK07B010 C2007 01 20.01590 08 56 09.00 +32 51 47.9 18.9 N EB025176
PK07B010 C2007 01 20.04280 08 56 08.09 +32 52 00.0 EB025204
PK07B010 C2007 01 20.04365 08 56 08.03 +32 52 00.6 18.2 T EB025473
PK07B010 C2007 01 20.05451 08 56 07.70 +32 52 05.5 18.3 T EB025473
PK07B010 C2007 01 20.06666 08 56 07.29 +32 52 11.1 18.4 T EB025473
PK07B010 C2007 01 20.07621 08 56 07.02 +32 52 16.1 18.4 T EB025473
PK07B010 C2007 01 20.08706 08 56 06.63 +32 52 20.8 18.0 T EB025473
PK07B010 C2007 01 20.34479 08 55 58.96 +32 54 24.3 19.3 T EB025673
PK07B010 C2007 01 20.35174 08 55 58.73 +32 54 27.3 EB025673
PK07B010 C2007 01 20.35868 08 55 58.49 +32 54 30.9 EB025673
PK07B010 C2007 01 20.36563 08 55 58.27 +32 54 34.1 EB025673
PK07B010 C2007 01 20.37257 08 55 58.04 +32 54 37.3 EB025673
PK07B010 C2007 01 20.37951 08 55 57.80 +32 54 40.8 EB025673
Observer details:
118 Modra. Observers J. Vilagi, L. Kornos. 0.6-m f/5.5 reflector + CCD.
176 Observatori Astronomic de Consell. Observers A. Lopez, R. Pacheco.
0.41-m f/4 reflector + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector
+ CCD.
470 Ceccano. Observers G. Masi, S. Foglia. Measurer G. Masi. 0.28-m f/5
reflector + CCD.
473 Remanzacco. Observers G. Sostero, L. Donato. 0.45-m f/4.4 Newtonian
reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. Mayes. 0.6-m
reflector + CCD.
703 Catalina Sky Survey. Observer E. J. Christensen. 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.
734 Farpoint Observatory. Observer G. Hug. 0.7-m reflector + CCD.
Orbital elements:
P/2007 B1 (Christensen)
T 2007 Feb. 8.351 TT MPC
q 2.42086 (2000.0) P Q
n 0.072969 Peri. 54.294 -0.638410 -0.742109
a 5.67165 Node 76.702 +0.620877 -0.653334
e 0.57317 Incl. 12.114 +0.454912 -0.149765
P 13.5
From 35 observations 2007 Jan. 17-20.
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 1.467 2.426 163.2 6.7 18.2
2007 01 30 08 50.58 +34 03.0 1.461 2.422 163.8 6.5 18.2
2007 02 09 08 44.87 +34 54.5 1.479 2.421 157.7 8.9 18.2
2007 02 19 08 40.23 +35 21.9 1.521 2.422 149.0 12.1 18.3
2007 03 01 08 37.72 +35 24.8 1.585 2.427 139.8 15.3 18.4
2007 03 11 08 37.90 +35 05.7 1.666 2.434 130.8 18.0 18.5
2007 03 21 08 40.95 +34 28.1 1.763 2.445 122.3 20.1 18.6
2007 03 31 08 46.73 +33 35.2 1.872 2.458 114.3 21.7 18.8
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-B25
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