MPEC 2007-S04 : COMET P/2007 R4 (GARRADD)
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M.P.E.C. 2007-S04 Issued 2007 Sept. 17, 17:19 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 P/2007 R4 (GARRADD)
Observations:
PK07R040 C2007 08 12.69900 01 47 19.42 -23 18 55.8 19.7 T ES004E12
PK07R040 C2007 08 12.71509 01 47 20.58 -23 19 01.8 19.0 T ES004E12
PK07R040 C2007 08 12.74292 01 47 22.77 -23 19 12.0 18.8 T ES004E12
PK07R040 C2007 08 12.75855 01 47 24.03 -23 19 16.1 18.5 T ES004E12
PK07R040 C2007 09 14.60795 02 15 02.73 -26 34 54.8 18.4 T ES004E12
PK07R040 C2007 09 14.62494 02 15 02.91 -26 35 00.5 18.3 T ES004E12
PK07R040 C2007 09 14.64244 02 15 03.20 -26 35 05.5 18.2 T ES004E12
PK07R040 C2007 09 14.66185 02 15 03.49 -26 35 10.5 18.4 T ES004E12
PK07R040 C2007 09 14.76504 02 15 04.86 -26 35 39.1 18 N ES004E12
PK07R040 C2007 09 14.78346 02 15 05.10 -26 35 44.3 18 N ES004E12
PK07R040 C2007 09 15.66209 02 15 18.62 -26 39 43.4 ES004E12
PK07R040 C2007 09 15.68001 02 15 18.87 -26 39 48.4 ES004E12
PK07R040 C2007 09 15.69772 02 15 19.07 -26 39 52.9 18.2 N ES004E12
PK07R040 C2007 09 16.23464 02 15 26.27 -26 42 14.0 18.0 N ES004I77
PK07R040 C2007 09 16.24440 02 15 26.25 -26 42 16.8 17.5 N ES004I77
PK07R040 C2007 09 16.25417 02 15 26.44 -26 42 20.0 17.8 N ES004I77
PK07R040 C2007 09 16.49572 02 15 29.79 -26 43 18.0 ES004474
PK07R040 C2007 09 16.54421 02 15 30.26 -26 43 31.1 18.9 N ES004474
PK07R040 C2007 09 16.56308 02 15 30.46 -26 43 36.5 19.1 N ES004474
PK07R040 C2007 09 17.50185 02 15 40.93 -26 47 29.2 18.6 N ES004474
PK07R040 C2007 09 17.50878 02 15 40.95 -26 47 30.7 18.4 N ES004474
PK07R040 C2007 09 17.61970 02 15 41.99 -26 48 00.0 18.9 N ES004E12
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore,
P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
E12 Siding Spring Survey. Observer G. J. Garradd. 0.5-m Uppsala Schmidt
+ CCD.
I77 CEAMIG-REA Observatory, Belo Horizonte. Observers C. Jacques, E. Pimentel.
Measurer C. Jacques. 0.30-m f/3.0 Schmidt-Cassegrain + CCD.
Orbital elements:
P/2007 R4 (Garradd)
T 2007 Sept. 26.904 TT MPC
q 1.92336 (2000.0) P Q
n 0.068841 Peri. 282.601 +0.923978 -0.163692
a 5.89621 Node 87.603 +0.299139 +0.872434
e 0.67380 Incl. 20.240 -0.238285 +0.460504
P 14.3
From 22 observations 2007 Aug. 12-Sept. 17.
Ephemeris:
P/2007 R4 (Garradd)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2007 09 17 02 15.59 -26 45.5 1.080 1.926 134.9 21.7 17.5
2007 09 27 02 15.66 -27 13.9 1.052 1.923 138.8 20.1 17.5
2007 10 07 02 12.56 -27 09.0 1.039 1.926 141.8 18.7 17.4
2007 10 17 02 07.20 -26 21.1 1.041 1.934 143.2 18.0 17.5
2007 10 27 02 00.99 -24 45.7 1.061 1.948 142.7 18.0 17.5
Brian G. Marsden (C) Copyright 2007 MPC M.P.E.C. 2007-S04
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