M.P.E.C. 2012-C48 Issued 2012 Feb. 14, 03:13 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.minorplanetcenter.net/ ISSN 1523-6714

COMET C/2012 CH17 (MOSS)

Observations:
CK12C17H C2012 02 02.36759 11 44 15.25 +23 46 15.8 18.3 TrEC048703
CK12C17H C2012 02 02.37412 11 44 15.10 +23 46 20.9 18.3 TrEC048703
CK12C17H C2012 02 02.38081 11 44 15.10 +23 46 25.3 18.3 TrEC048703
CK12C17H C2012 02 02.38751 11 44 15.00 +23 46 30.0 18.3 TrEC048703
CK12C17H C2012 02 07.12218 11 43 11.55 +24 42 22.3 17.9 TcEC048J43
CK12C17H C2012 02 07.13634 11 43 11.36 +24 42 31.9 18.0 TcEC048J43
CK12C17H C2012 02 07.15047 11 43 11.14 +24 42 42.8 18.3 TcEC048J43
CK12C17H C2012 02 07.16462 11 43 10.82 +24 42 52.9 18.2 TcEC048J43
CK12C17H C2012 02 08.18604 11 42 53.28 +24 55 19.7 18.4 TcEC048J43
CK12C17H C2012 02 08.21014 11 42 52.89 +24 55 37.4 18.7 TcEC048J43
CK12C17H C2012 02 08.23407 11 42 52.41 +24 55 54.9 18.7 TcEC048J43
CK12C17H C2012 02 11.05360 11 41 57.29 +25 30 56.3 18.4 TcEC048J43
CK12C17H C2012 02 11.07760 11 41 56.78 +25 31 14.5 18.2 TcEC048J43
CK12C17H C2012 02 11.10182 11 41 56.18 +25 31 33.1 17.8 TcEC048J43
CK12C17H C2012 02 12.03765 11 41 35.56 +25 43 21.7 18.9 TcEC048J43
CK12C17H C2012 02 12.06182 11 41 34.96 +25 43 40.2 18.4 TcEC048J43
CK12C17H C2012 02 12.08605 11 41 34.37 +25 43 58.8 18.5 TcEC048J43
CK12C17H KC2012 02 12.92774 11 41 14.95 +25 54 39.6 cEC048I89
CK12C17H KC2012 02 12.93079 11 41 14.86 +25 54 42.3 cEC048I89
CK12C17H KC2012 02 12.93384 11 41 14.79 +25 54 45.1 17.9 TcEC048I89
CK12C17H KC2012 02 12.97224 11 41 13.75 +25 55 14.1 18.2 TcEC048B51
CK12C17H KC2012 02 12.99989 11 41 13.17 +25 55 35.9 18.3 TcEC048B51
CK12C17H KC2012 02 13.03033 11 41 12.32 +25 55 58.7 18.0 TcEC048B51
CK12C17H KC2012 02 13.10471 11 41 10.48 +25 56 56.9 18.0 TvEC048J43
CK12C17H KC2012 02 13.12522 11 41 09.95 +25 57 12.6 18.2 TvEC048J43
CK12C17H KC2012 02 13.14487 11 41 09.45 +25 57 27.7 18.2 TvEC048J43
CK12C17H KC2012 02 13.44833 11 41 02.04 +26 01 20.8 oEC048291
CK12C17H KC2012 02 13.45565 11 41 01.85 +26 01 26.4 oEC048291
CK12C17H KC2012 02 13.46296 11 41 01.66 +26 01 32.0 oEC048291

Observer details:
291 LPL/Spacewatch II. Observer J. V. Scotti. 1.8-m f/2.7 reflector + CCD.
703 Catalina Sky Survey. Observer R. E. Hill. Measurers J. D. Ahern,
E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, P. Tricarico,
A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
0.68-m Schmidt + CCD.
B51 Vallauris. Observer J. Nicolas. 0.41-m f/3.3 reflector + CCD.
I89 RAS Observatory, Nerpio. Observer H. Sato. 0.43-m f/6.8 astrograph + CCD.
J43 Oukaimeden Observatory, Marrakech. Observers C. Rinner, F. Kugel.
0.5-m f/3 reflector + CCD.

Orbital elements:
C/2012 CH17 (MOSS)
T 2012 Sept. 28.07814 TT MPC
q 1.2957137 (2000.0) P Q
Peri. 138.01949 -0.04302480 +0.92540652
Node 125.94444 -0.99480698 -0.00488755
e 1.0 Incl. 27.71566 -0.09223850 -0.37894443
From 29 observations 2012 Feb. 2-13.

Ephemeris:
C/2012 CH17 (MOSS)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2012 01 15 11 44 04.5 +20 43 49 2.9482 3.5953 124.3 13.1 18.9
...
2012 01 30 11 44 43.1 +23 08 32 2.6429 3.4406 138.2 11.0 18.5
...
2012 02 07 11 43 13.6 +24 40 53 2.5004 3.3576 145.2 9.7 18.3
...
2012 02 13 11 41 13.0 +25 55 36 2.4043 3.2950 149.8 8.7 18.1
2012 02 14 11 40 48.4 +26 08 25 2.3892 3.2846 150.5 8.5 18.1
2012 02 15 11 40 22.5 +26 21 19 2.3744 3.2742 151.1 8.4 18.0
...
2012 02 21 11 37 20.3 +27 40 05 2.2915 3.2113 154.3 7.7 17.9
...
2012 02 29 11 32 10.0 +29 26 12 2.1972 3.1273 155.8 7.5 17.7
...
2012 03 15 11 19 48.6 +32 32 26 2.0705 2.9688 149.2 9.9 17.3

Gareth V. Williams (C) Copyright 2012 MPC M.P.E.C. 2012-C48