MPEC 2006-T77 : COMET P/2006 S4 (CHRISTENSEN)
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M.P.E.C. 2006-T77 Issued 2006 Oct. 13, 15:16 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET P/2006 S4 (CHRISTENSEN)
Observations:
PK06S040 2006 09 26.64444 01 46 43.41 -16 13 14.5 18.0 T ET077372
PK06S040 2006 09 26.71250 01 46 39.38 -16 13 00.4 18.1 T ET077372
PK06S040 C2006 09 30.19722 01 43 12.39 -16 00 34.4 ET077808
PK06S040 C2006 09 30.20382 01 43 12.04 -16 00 32.3 ET077808
PK06S040 C2006 10 02.15891 01 41 12.54 -15 52 47.4 ET077808
PK06S040 C2006 10 02.16562 01 41 12.15 -15 52 47.7 ET077808
PK06S040 C2006 10 02.17396 01 41 11.09 -15 52 47.9 ET077808
PK06S040 2006 10 03.73333 01 39 34.51 -15 46 09.1 18.5 T ET077372
PK06S040 C2006 10 04.54747 01 38 43.53 -15 42 29.3 17.4 T ET077423
PK06S040 C2006 10 04.57042 01 38 42.17 -15 42 21.6 17.9 T ET077423
PK06S040 C2006 10 09.62413 01 33 20.53 -15 17 24.3 19.3 N ET077415
PK06S040 C2006 10 09.63538 01 33 19.81 -15 17 20.6 19.5 N ET077415
PK06S040 C2006 10 10.51578 01 32 23.34 -15 12 32.8 18.0 T ET077423
PK06S040 C2006 10 10.53835 01 32 21.85 -15 12 25.1 17.5 T ET077423
PK06S040 C2006 10 10.62157 01 32 16.49 -15 11 57.1 19.6 N ET077415
PK06S040 C2006 10 10.63001 01 32 15.94 -15 11 54.6 19.1 N ET077415
PK06S040 C2006 10 11.53286 01 31 17.95 -15 06 50.7 17.9 T ET077423
PK06S040 C2006 10 11.57123 01 31 15.41 -15 06 37.6 17.9 T ET077423
PK06S040 C2006 10 12.36227 01 30 24.48 -15 02 08.2 18.2 T ET077673
PK06S040 C2006 10 12.36910 01 30 24.06 -15 02 05.9 ET077673
PK06S040 C2006 10 12.37442 01 30 23.74 -15 02 02.6 ET077673
PK06S040 C2006 10 12.38218 01 30 23.18 -15 02 00.6 ET077673
PK06S040 C2006 10 12.51227 01 30 14.90 -15 01 11.0 17.7 T ET077423
PK06S040 C2006 10 12.53936 01 30 13.11 -15 01 01.2 17.9 T ET077423
Observer details:
372 Geisei. Observer T. Seki. 0.60-m f/3.5 reflector.
415 Kambah, near Canberra. Observer D. Herald. 0.36-m f/3.9
Schmidt-Cassegrain + CCD.
423 North Ryde. Observer S. G. McAndrew. 0.20-m f/4 hyperbolic astrograph
+ CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Young. 0.61-m f/16
Cassegrain + CCD.
808 El Leoncito. Observer H. S. Lepez. 0.5-m f/7.5 double astrograph + CCD.
Orbital elements:
P/2006 S4 (Christensen)
T 2006 June 1.498 TT MPC
q 3.06773 (2000.0) P Q
n 0.063250 Peri. 305.671 +0.839941 +0.391178
a 6.23869 Node 36.140 +0.058012 +0.624418
e 0.50827 Incl. 39.627 -0.539569 +0.676078
P 15.6
From 78 observations 2006 Sept. 22-Oct. 12.
Ephemeris:
P/2006 S4 (Christensen)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2006 10 12 01 30.80 -15 04.2 2.260 3.203 157.0 7.0 17.8
2006 10 22 01 20.22 -13 57.9 2.297 3.223 154.4 7.7 17.9
2006 11 01 01 10.52 -12 35.2 2.363 3.245 147.6 9.4 18.0
2006 11 11 01 02.41 -10 58.8 2.457 3.268 138.8 11.5 18.1
2006 11 21 00 56.31 -09 12.3 2.575 3.292 129.4 13.4 18.2
2006 12 01 00 52.43 -07 18.9 2.713 3.317 119.9 14.9 18.4
2006 12 11 00 50.76 -05 21.6 2.868 3.343 110.5 16.0 18.5
2006 12 21 00 51.13 -03 22.4 3.034 3.370 101.4 16.6 18.7
2006 12 31 00 53.37 -01 22.7 3.207 3.398 92.7 16.8 18.8
Brian G. Marsden (C) Copyright 2006 MPC M.P.E.C. 2006-T77
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