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M.P.E.C. 2008-C16 Issued 2008 Feb. 3, 03:59 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/2008 C1 (CHEN-GAO)
Observations:
CK08C010 C2008 02 02.78974 23 10 25.72 +62 10 56.0 17.4 N EC016J87
CK08C010 C2008 02 02.79199 23 10 26.50 +62 10 55.7 17.4 N EC016J87
CK08C010 C2008 02 02.79426 23 10 27.27 +62 10 55.3 17.5 N EC016J87
CK08C010 C2008 02 02.79652 23 10 28.21 +62 10 55.1 17.5 N EC016J87
CK08C010 C2008 02 02.79879 23 10 28.97 +62 10 54.6 17.4 N EC016J87
CK08C010 C2008 02 02.85583 23 10 50.21 +62 10 43.4 16.4 N EC016B30
CK08C010 C2008 02 02.87403 23 10 57.26 +62 10 42.1 16.5 N EC016B30
CK08C010 C2008 02 02.87943 23 10 58.94 +62 10 41.2 EC016204
CK08C010 C2008 02 02.88289 23 11 00.26 +62 10 40.7 EC016204
CK08C010 C2008 02 02.88636 23 11 01.56 +62 10 40.1 15.8 N EC016204
CK08C010 C2008 02 02.89421 23 11 04.79 +62 10 38.5 12.0 T EC016114
CK08C010 C2008 02 02.94781 23 11 24.59 +62 10 29.8 16.0 T EC016B03
CK08C010 C2008 02 02.94977 23 11 25.33 +62 10 30.2 16.0 T EC016B03
CK08C010 C2008 02 02.95172 23 11 25.99 +62 10 29.4 16.5 T EC016B03
CK08C010 C2008 02 02.95368 23 11 26.72 +62 10 29.2 16.5 T EC016B03
CK08C010 C2008 02 02.95617 23 11 27.58 +62 10 29.0 17.6 T EC016A21
CK08C010 C2008 02 02.96410 23 11 30.63 +62 10 27.8 17.7 T EC016A21
CK08C010 C2008 02 02.97203 23 11 33.57 +62 10 26.4 17.7 T EC016A21
CK08C010 C2008 02 02.97599 23 11 35.08 +62 10 25.9 18.1 T EC016A21
CK08C010 C2008 02 03.03091 23 11 55.78 +62 10 17.9 16.3 T EC016B30
CK08C010 C2008 02 03.03330 23 11 56.56 +62 10 17.6 16.5 T EC016B30
CK08C010 C2008 02 03.03427 23 11 56.82 +62 10 16.5 16.5 T EC016B30
CK08C010 C2008 02 03.03713 23 11 58.19 +62 10 16.6 16.1 T EC016B30
CK08C010 C2008 02 03.04084 23 11 59.59 +62 10 16.2 16.8 T EC016B30
CK08C010 C2008 02 03.04221 23 11 59.37 +62 10 23.4 16.2 N EC016H45
CK08C010 C2008 02 03.04490 23 12 00.34 +62 10 20.6 16.0 N EC016H45
CK08C010 C2008 02 03.04617 23 12 00.83 +62 10 20.6 16.1 N EC016H45
CK08C010 C2008 02 03.04696 23 12 01.11 +62 10 20.6 16.2 N EC016H45
CK08C010 C2008 02 03.04774 23 12 01.40 +62 10 20.6 16.2 N EC016H45
CK08C010 C2008 02 03.05055 23 12 02.46 +62 10 20.5 16.4 N EC016H45
CK08C010 C2008 02 03.05378 23 12 03.57 +62 10 19.4 16.2 N EC016H45
CK08C010 C2008 02 03.05661 23 12 04.70 +62 10 18.5 16.5 N EC016H45
CK08C010 C2008 02 03.05731 23 12 04.99 +62 10 18.5 16.4 N EC016H45
CK08C010 C2008 02 03.06216 23 12 06.54 +62 10 18.4 16.4 N EC016H45
CK08C010 C2008 02 03.09879 23 12 20.37 +62 10 13.3 16.3 R EC016H06
CK08C010 C2008 02 03.10901 23 12 24.12 +62 10 11.6 16.4 R EC016H06
Observer details:
114 Engelhardt Observatory, Zelenchukskaya Station. Observer T. Kryachko.
Measurer D. Denisenko. 0.30-m f/7.7 Ritchey-Chretien + CCD.
204 Schiaparelli Observatory. Observers L. Buzzi, F. Luppi. Measurer
L. Buzzi. 0.60-m f/4.64 reflector + CCD.
A21 Irmtraut. Observer J. J. Mueller. 0.31-m f/4.8 reflector + CCD.
B03 Alter Satzberg, Vienna. Observer M. Pietschnig. 0.35-m f/7
Schmidt-Cassegrain + CCD.
B30 Szamotuly-Galowo. Observer M. Reszelski. 0.20-m reflector + CCD.
H06 RAS Observatory, Mayhill. Observers E. Guido, G. Sostero. 0.25-m f/3.4
reflector + CCD.
H45 Petit Jean Mountain South. Observer P. C. Sherrod. 0.51-m f/4
Schmidt-Cassegrain + CCD.
J87 La Canada. Observer J. Lacruz. 0.40-m Ritchey-Chretien + CCD.
Orbital elements:
C/2008 C1 (Chen-Gao)
T 2008 Apr. 17.216 TT MPC
q 1.26927 (2000.0) P Q
Peri. 180.781 -0.613111 -0.365072
Node 307.451 +0.729510 +0.078688
e 1.0 Incl. 61.943 +0.303168 -0.927648
From 37 observations 2008 Feb. 1-3.
Ephemeris:
C/2008 C1 (Chen-Gao)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2008 01 25 22 19.97 +62 12.7 1.565 1.767 84.5 33.7 13.4
2008 01 30 22 47.72 +62 15.6 1.522 1.719 83.6 34.7 13.3
2008 02 04 23 17.97 +62 07.8 1.481 1.672 82.7 35.8 13.1
2008 02 09 23 50.42 +61 44.5 1.443 1.627 81.7 36.9 12.9
2008 02 14 00 24.45 +61 00.7 1.409 1.583 80.6 38.0 12.7
2008 02 19 00 59.22 +59 52.1 1.379 1.541 79.3 39.1 12.6
2008 02 24 01 33.75 +58 16.0 1.354 1.500 77.9 40.2 12.4
2008 02 29 02 07.13 +56 11.4 1.334 1.463 76.4 41.2 12.3
2008 03 05 02 38.65 +53 39.4 1.321 1.427 74.7 42.1 12.1
2008 03 10 03 07.88 +50 43.1 1.314 1.395 72.9 42.9 12.0
2008 03 15 03 34.65 +47 26.7 1.314 1.366 71.0 43.5 11.9
2008 03 20 03 58.98 +43 55.0 1.321 1.340 69.0 44.0 11.9
2008 03 25 04 21.06 +40 13.0 1.334 1.318 67.0 44.2 11.8
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-C16
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