MPEC 2003-C28 : 2001 BP61
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M.P.E.C. 2003-C28 Issued 2003 Feb. 5, 18:37 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
2001 BP61
Revision to MPEC 2001-B54
Additional Observations:
K01B61P 9C2003 01 29.30370 12 41 28.04 -23 04 40.4 22.5 R 809
K01B61P 9C2003 01 29.30612 12 41 28.04 -23 04 42.6 22.5 R 809
K01B61P 9C2003 01 29.30853 12 41 28.02 -23 04 44.6 22.4 R 809
K01B61P 9C2003 01 30.30569 12 41 26.94 -23 19 37.7 22.7 R 809
K01B61P 9C2003 01 30.30811 12 41 26.92 -23 19 39.6 23.0 R 809
K01B61P 9C2003 01 30.31055 12 41 26.92 -23 19 41.1 22.7 R 809
Observer details:
809 European Southern Observatory, La Silla. Observers A. Boattini,
O. Hainaut. Measurers A. Boattini, H. Scholl, G. Hahn, M. Carpino.
3.58-m New Technology Telescope + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
030129 809 5.9+ 1.8- 030130 809 5.8+ 1.1- MPO 20836 -0.0031 day
Orbital elements:
2001 BP61
Epoch 2002 Nov. 22.0 TT = JDT 2452600.5 MPC
M 54.96592 (2000.0) P Q
n 0.54389489 Peri. 108.86801 +0.76450461 -0.60880597
a 1.4863670 Node 289.19959 +0.47398859 +0.75366516
e 0.3252992 Incl. 12.96444 +0.43688388 +0.24767744
P 1.81 H 20.4 G 0.15 U 4
Residuals in seconds of arc
010103 608 0.1- 0.2- 010127 046 0.2- 0.7- 010131 711 0.7- 1.3-
010118 608 0.3+ 0.4+ 010127 046 0.6+ 0.1+ 010220 691 0.4+ 0.1+
010118 608 0.2+ 0.1- 010127 046 0.1- 0.9+ 010220 691 0.2+ 0.1+
010125 608 0.5- 0.5+ 010127 046 0.5+ 0.7- 010220 691 0.4+ 0.1-
010126 704 0.8+ 0.1+ 010128 595 0.3- 1.0- 010324 568 0.3- 0.1+
010126 704 0.2+ 0.1- 010128 046 0.4- 0.0 010324 568 0.2- 0.2+
010126 704 0.0 0.6+ 010128 595 0.6- 0.9- 030129 809 0.2+ 0.1-
010126 704 0.5- 1.3+ 010128 046 0.4+ 0.0 030129 809 0.2+ 0.1-
010126 704 0.4+ 0.3+ 010128 046 0.5+ 0.3- 030129 809 0.1+ 0.1+
010126 557 1.4+ 0.0 010128 595 0.4+ 0.9- 030130 809 0.1- 0.3-
010126 557 0.4- 0.6+ 010128 046 0.1- 0.8+ 030130 809 0.2- 0.1-
010126 557 1.4- 0.2+ 010128 046 0.4+ 0.0 030130 809 0.0 0.6+
010127 046 0.7- 0.2- 010128 595 0.4+ 0.8+
010127 046 0.1+ 0.0 010131 711 1.2- 0.6-
Ephemeris:
2001 BP61 a,e,i = 1.49, 0.33, 13 q = 1.0029
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2003 01 31 12 41.41 -23 29.9 1.028 1.656 110.6 33.8 23.0
2003 02 10 12 38.15 -25 43.4 0.973 1.693 119.5 30.5 22.8
2003 02 20 12 29.69 -27 24.0 0.926 1.728 129.0 26.4 22.6
2003 03 02 12 16.26 -28 19.1 0.892 1.761 138.6 21.9 22.4
2003 03 12 11 59.21 -28 17.0 0.874 1.792 147.2 17.5 22.3
2003 03 22 11 41.04 -27 15.7 0.877 1.820 152.6 14.6 22.2
2003 04 01 11 24.53 -25 25.7 0.903 1.846 152.2 14.6 22.3
2003 04 11 11 11.91 -23 08.4 0.950 1.870 146.6 17.2 22.6
2003 04 21 11 04.17 -20 47.2 1.017 1.891 138.5 20.6 22.8
2003 05 01 11 01.26 -18 39.2 1.101 1.909 129.8 23.9 23.1
Gareth V. Williams (C) Copyright 2003 MPC M.P.E.C. 2003-C28
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