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M.P.E.C. 2000-O18 Issued 2000 July 24, 02:26 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
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 RZ253
Revision to MPEC 2000-O12
Observations:
J99RP3Z 3C2000 07 22.52180 22 01 07.81 -12 40 27.6 568
J99RP3Z 3C2000 07 22.58791 22 01 07.53 -12 40 29.1 568
J99RP3Z 3C2000 07 23.46547 22 01 03.97 -12 40 48.8 568
J99RP3Z 3C2000 07 23.54696 22 01 03.65 -12 40 50.6 568
Observer details:
568 Mauna Kea. Observers C. Veillet, J. C. Cuillandre, D. R. Woodworth,
J. McDonald. Measurer C. Veillet. 3.6-m Canada-France-Hawaii
Telescope + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
000722 568 32.5+ 12.8+ 000723 568 32.5+ 12.6+ E2000-O13
Orbital elements:
1999 RZ253
Eccentricity assumed
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5 Marsden
M 315.24958 (2000.0) P Q
n 0.00337197 Peri. 297.74209 +0.92500986 -0.37981730
a 44.0433329 Node 84.58166 +0.35195694 +0.84689869
e 0.1133562 Incl. 0.56266 +0.14311907 +0.37215780
P 292 H 5.9 G 0.15
Residuals in seconds of arc
990908 568 0.1- 0.1+ 990913 568 0.0 0.0 991111 568 0.4+ 0.2+
990908 568 0.3+ 0.3+ 990914 568 0.1+ 0.0 000722 568 0.1+ 0.1+
990908 568 0.4+ 0.2+ 990914 568 0.0 0.0 000722 568 0.0 0.1+
990910 568 0.2- 0.3+ 991009 568 0.7- 0.6- 000723 568 0.2- 0.1-
990910 568 0.1- 0.2- 991009 568 0.5- 0.5- 000723 568 0.1+ 0.0
990913 568 0.1+ 0.0 991110 568 0.5+ 0.1+
Ephemeris:
1999 RZ253 a,e,i = 44.04, 0.11, 1 q = 39.051
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 07 15 22 01.61 -12 37.8 39.995 40.829 144.8 0.8 22.1
2000 07 25 22 00.96 -12 41.4 39.908 40.827 154.5 0.6 22.1
2000 08 04 22 00.24 -12 45.3 39.847 40.824 164.2 0.4 22.0
2000 08 14 21 59.47 -12 49.5 39.814 40.822 174.0 0.1 22.0
2000 08 24 21 58.68 -12 53.7 39.811 40.819 176.1 0.1 22.0
2000 09 03 21 57.91 -12 57.9 39.836 40.817 166.3 0.3 22.0
2000 09 13 21 57.17 -13 01.7 39.891 40.815 156.4 0.6 22.1
2000 09 23 21 56.50 -13 05.3 39.972 40.812 146.5 0.8 22.1
2000 10 03 21 55.92 -13 08.3 40.078 40.810 136.5 1.0 22.1
2000 10 13 21 55.45 -13 10.6 40.206 40.807 126.5 1.1 22.1
2000 10 23 21 55.12 -13 12.3 40.351 40.805 116.5 1.3 22.2
2000 11 02 21 54.94 -13 13.1 40.510 40.802 106.5 1.3 22.2
2000 11 12 21 54.91 -13 13.1 40.678 40.800 96.4 1.4 22.2
2000 11 22 21 55.05 -13 12.3 40.848 40.798 86.4 1.4 22.2
2000 12 02 21 55.34 -13 10.6 41.017 40.795 76.3 1.3 22.2
2000 12 12 21 55.80 -13 08.1 41.179 40.793 66.3 1.3 22.2
2000 12 22 21 56.40 -13 04.8 41.328 40.790 56.3 1.1 22.2
2001 01 01 21 57.13 -13 00.8 41.462 40.788 46.3 1.0 22.2
2001 01 11 21 57.98 -12 56.2 41.574 40.786 36.3 0.8 22.2
Brian G. Marsden (C) Copyright 2000 MPC M.P.E.C. 2000-O18
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