MPEC 2007-K17 : COMET C/2007 JA21 (LINEAR)
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M.P.E.C. 2007-K17 Issued 2007 May 18, 15:49 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 14.29398 17 36 25.89 +53 05 43.7 18.8 T EK017673
CK07J21A C2007 05 14.30451 17 36 25.06 +53 05 43.4 EK017673
CK07J21A C2007 05 14.32407 17 36 23.52 +53 05 42.7 EK017673
CK07J21A C2007 05 14.34132 17 36 22.18 +53 05 42.0 EK017673
CK07J21A C2007 05 14.35914 17 36 20.77 +53 05 41.2 EK017673
CK07J21A C2007 05 14.97688 17 35 32.54 +53 05 18.5 18.6 T EK017561
CK07J21A C2007 05 14.98050 17 35 32.14 +53 05 17.0 18.9 T EK017561
CK07J21A C2007 05 14.98412 17 35 31.90 +53 05 18.5 19.4 T EK017561
CK07J21A C2007 05 16.96147 17 32 55.89 +53 03 33.8 18.9 N EK017213
CK07J21A C2007 05 16.96386 17 32 55.69 +53 03 33.4 19.0 N EK017213
CK07J21A C2007 05 16.96719 17 32 55.40 +53 03 33.1 19.2 N EK017213
CK07J21A C2007 05 18.41490 17 30 59.47 +53 01 45.1 18.7 T EK017703
CK07J21A C2007 05 18.41984 17 30 59.11 +53 01 46.4 18.9 T EK017703
CK07J21A C2007 05 18.42477 17 30 58.78 +53 01 44.9 18.7 T EK017703
CK07J21A C2007 05 18.42970 17 30 58.24 +53 01 44.5 18.7 T EK017703
Observer details:
213 Observatorio Montcabre. Observer R. Naves. Measurer M. Campas. 0.30-m
f/10 Schmidt-Cassegrain + CCD.
561 Piszkesteto Stn. (Konkoly). Observer J. Kelemen. 0.6-m Schmidt + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Young. 0.61-m f/16
Cassegrain + CCD.
703 Catalina Sky Survey. Observer R. E. Hill. Measurers E. C. Beshore,
A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
S. M. Larson. 0.68-m Schmidt + CCD.
Orbital elements:
C/2007 JA21 (LINEAR)
T 2006 Nov. 26.248 TT MPC
q 5.38796 (2000.0) P Q
Peri. 95.068 -0.039135 -0.412510
Node 65.521 -0.468923 -0.796707
e 1.0 Incl. 89.840 +0.882372 -0.441693
From 44 observations 2007 May 11-18.
Ephemeris:
C/2007 JA21 (LINEAR)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 05 10 17 41.89 +53 06.1 5.228 5.524 101.8 10.3 19.0
2007 05 20 17 28.86 +52 59.2 5.212 5.541 103.8 10.2 19.0
2007 05 30 17 15.11 +52 30.0 5.208 5.558 105.1 10.1 19.0
2007 06 09 17 01.40 +51 37.0 5.219 5.577 105.5 10.1 19.1
2007 06 19 16 48.45 +50 20.8 5.245 5.596 105.1 10.1 19.1
2007 06 29 16 36.86 +48 43.5 5.288 5.616 103.7 10.1 19.1
2007 07 09 16 27.04 +46 48.4 5.346 5.638 101.5 10.2 19.2
2007 07 19 16 19.17 +44 39.7 5.420 5.660 98.5 10.2 19.2
2007 07 29 16 13.29 +42 21.7 5.507 5.682 94.8 10.3 19.3
Further observations of this comet are desirable.
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-K17
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