MPEC 2005-P21 : COMET C/2005 O2 (CHRISTENSEN)
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M.P.E.C. 2005-P21 Issued 2005 Aug. 3, 14:56 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.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
COMET C/2005 O2 (CHRISTENSEN)
Observations:
CK05O020 C2005 07 31.75168 03 34 52.50 -11 47 14.3 18.2 N EP021E12
CK05O020 C2005 07 31.75880 03 34 52.32 -11 47 20.4 EP021E12
CK05O020 C2005 07 31.76582 03 34 52.17 -11 47 25.6 EP021E12
CK05O020 C2005 07 31.77282 03 34 51.99 -11 47 33.0 EP021E12
CK05O020 C2005 07 31.77844 03 34 51.78 -11 47 37.2 EP021E12
CK05O020 C2005 07 31.78632 03 34 51.67 -11 47 44.6 EP021E12
CK05O020 C2005 07 31.80220 03 34 51.34 -11 47 58.1 EP021E12
CK05O020 C2005 07 31.81078 03 34 51.20 -11 48 06.3 EP021E12
CK05O020 C2005 07 31.81565 03 34 51.06 -11 48 10.3 EP021E12
CK05O020 C2005 07 31.82060 03 34 50.95 -11 48 14.2 EP021E12
CK05O020 C2005 07 31.82547 03 34 50.84 -11 48 19.1 EP021E12
CK05O020 C2005 08 01.77162 03 34 30.72 -12 02 24.1 18.4 N EP021E12
CK05O020 C2005 08 01.77984 03 34 30.57 -12 02 32.0 18.3 N EP021E12
CK05O020 C2005 08 01.78815 03 34 30.36 -12 02 39.4 18.4 N EP021E12
CK05O020 C2005 08 01.79646 03 34 30.18 -12 02 47.5 18.2 N EP021E12
CK05O020 C2005 08 02.11105 03 34 23.21 -12 07 34.1 18.0 N EP021599
CK05O020 C2005 08 02.11207 03 34 23.22 -12 07 34.9 17.1 N EP021599
CK05O020 C2005 08 02.11307 03 34 23.12 -12 07 36.4 17.8 N EP021599
CK05O020 C2005 08 02.11409 03 34 23.15 -12 07 38.1 17.5 N EP021599
CK05O020 C2005 08 02.11508 03 34 23.14 -12 07 38.6 18.0 N EP021599
CK05O020 C2005 08 02.34258 03 34 17.89 -12 11 02.8 18.2 N EP021I77
CK05O020 C2005 08 02.34886 03 34 17.67 -12 11 08.0 18.5 N EP021I77
CK05O020 C2005 08 02.35512 03 34 17.57 -12 11 13.6 18.4 N EP021I77
CK05O020 C2005 08 02.46701 03 34 15.12 -12 12 59.2 19.0 N EP021673
CK05O020 C2005 08 02.47049 03 34 15.09 -12 13 02.0 EP021673
CK05O020 C2005 08 02.47396 03 34 15.03 -12 13 04.7 EP021673
CK05O020 C2005 08 02.47743 03 34 14.96 -12 13 07.7 EP021673
CK05O020 C2005 08 02.48090 03 34 14.84 -12 13 10.9 EP021673
CK05O020 C2005 08 02.48438 03 34 14.77 -12 13 14.5 EP021673
CK05O020 C2005 08 02.66094 03 34 10.64 -12 15 51.2 18.5 N EP021474
CK05O020 C2005 08 02.66198 03 34 10.63 -12 15 52.6 18.1 N EP021474
CK05O020 C2005 08 02.66372 03 34 10.59 -12 15 54.8 18.6 N EP021474
CK05O020 C2005 08 02.66777 03 34 10.51 -12 15 57.6 18.6 N EP021474
CK05O020 C2005 08 03.45660 03 33 51.77 -12 28 09.8 19.4 N EP021673
CK05O020 C2005 08 03.46597 03 33 51.33 -12 28 19.1 EP021673
CK05O020 C2005 08 03.47535 03 33 51.28 -12 28 27.2 EP021673
CK05O020 C2005 08 03.48333 03 33 51.04 -12 28 34.0 EP021673
CK05O020 C2005 08 03.48854 03 33 50.94 -12 28 39.0 EP021673
CK05O020 C2005 08 03.49201 03 33 50.87 -12 28 42.8 EP021673
Observer details:
474 Mount John Observatory, Lake Tekapo. Observer A. C. Gilmore. 1.0-m f/7.7
reflector + CCD.
599 Campo Imperatore-CINEOS. Observers A. Boattini, E. Gregori. Measurers
A. Boattini, A. Di Paola, E. Dotto. 0.60-m f/3.1 Schmidt + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. Mayes. 0.6-m
reflector + CCD.
E12 Siding Spring Survey. Observer E. J. Christensen. Measurers
E. J. Christensen, E. C. Beshore, C. M. Casey, G. J. Garradd, A. D. Grauer,
R. E. Hill, S. M. Larson, R. H. McNaught. 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:
C/2005 O2 (Christensen)
T 2005 Sept. 29.550 TT MPC
q 3.34281 (2000.0) P Q
Peri. 268.221 +0.835404 +0.204742
Node 280.295 +0.374281 -0.891524
e 1.0 Incl. 148.773 -0.402510 -0.404061
From 38 observations 2005 July 31-Aug. 3.
Ephemeris:
C/2005 O2 (Christensen)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2005 07 29 03 35.73 -11 07.7 3.436 3.394 79.1 17.1 17.5
2005 08 08 03 31.76 -13 41.4 3.239 3.379 89.1 17.5 17.3
2005 08 18 03 25.06 -16 43.3 3.049 3.367 99.5 17.3 17.2
2005 08 28 03 14.95 -20 13.2 2.874 3.357 110.0 16.4 17.1
2005 09 07 03 00.64 -24 06.6 2.727 3.350 120.3 15.1 16.9
2005 09 17 02 41.49 -28 11.8 2.616 3.345 129.3 13.4 16.8
2005 09 27 02 17.27 -32 09.1 2.553 3.343 135.5 12.1 16.8
Brian G. Marsden (C) Copyright 2005 MPC M.P.E.C. 2005-P21
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