MPEC 2007-K78 : COMET C/2007 JA21 (LINEAR)
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M.P.E.C. 2007-K78 Issued 2007 May 31, 15:35 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 C/2007 JA21 (LINEAR)
Observations:
CK07J21A C2007 05 25.03982 17 21 58.65 +52 47 23.5 EK078118
CK07J21A C2007 05 25.04318 17 21 58.32 +52 47 23.5 EK078118
CK07J21A C2007 05 30.02512 17 15 05.17 +52 29 52.8 EK078J95
CK07J21A C2007 05 30.02912 17 15 04.80 +52 29 51.8 EK078J95
CK07J21A C2007 05 30.03272 17 15 04.45 +52 29 50.4 18.9 N EK078J95
Observer details:
118 Modra. Observer S. Gajdos. 0.6-m f/5.5 reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
C/2007 JA21 (LINEAR)
T 2006 Nov. 10.980 TT MPC
q 5.35972 (2000.0) P Q
Peri. 93.308 -0.026660 -0.412946
Node 65.556 -0.444147 -0.810971
e 1.0 Incl. 89.825 +0.895557 -0.414490
From 64 observations 2007 May 11-30.
Ephemeris:
C/2007 JA21 (LINEAR)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 05 30 17 15.12 +52 30.0 5.211 5.561 105.1 10.1 19.0
2007 06 09 17 01.43 +51 37.1 5.223 5.581 105.5 10.1 19.1
2007 06 19 16 48.50 +50 21.0 5.251 5.602 105.1 10.1 19.1
2007 06 29 16 36.93 +48 43.9 5.295 5.623 103.7 10.1 19.1
2007 07 09 16 27.14 +46 49.1 5.355 5.646 101.5 10.2 19.2
2007 07 19 16 19.29 +44 40.8 5.430 5.670 98.5 10.2 19.2
2007 07 29 16 13.44 +42 23.3 5.519 5.694 94.8 10.2 19.3
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-K78
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