MPEC 2000-S13 : 1998 WM
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M.P.E.C. 2000-S13 Issued 2000 Sept. 20, 16:32 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
1998 WM
Revision to MPEC 1998-W12
Observations:
J98W00M 2 1987 10 16.59408 02 49 50.77 -01 45 34.0 260
J98W00M 2 1987 10 16.69824 02 49 33.90 -01 44 52.5 260
Observer details:
260 Siding Spring-DSS. Trail located and measured by ANEOPP (A. Boattini,
G. Forti). 1.2-m Schmidt.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
871016 260 18.6- 16.3- 871016 260 18.2- 16.9- MPC 36541 +0.0064 day
Orbital elements:
1998 WM
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5 Williams
M 350.73671 (2000.0) P Q
n 0.72726452 Peri. 172.47123 -0.77890028 +0.56405444
a 1.2246381 Node 45.71076 -0.59351243 -0.52173420
e 0.3154792 Incl. 22.51852 -0.20262614 -0.64002813
P 1.36 H 16.8 G 0.15 U 2
Residuals in seconds of arc
871016 260 0.7- 0.8+ 981128 402 0.1+ 1.1+ 990208 704 1.0- 0.5-
871016 260 0.2- 0.2+ 981128 402 0.2+ 1.1+ 990208 704 0.4- 2.5+
981116 704 0.7- 0.4+ 981128 402 0.1+ 1.2+ 990208 704 0.1- 0.9+
981116 704 0.9- 0.6- 981128 118 0.3- 0.7+ 990225 587 0.7- 1.9-
981116 704 0.1+ 1.8- 981128 118 0.1- 0.7+ 990225 587 0.2+ 1.0-
981116 704 0.0 2.7- 981128 118 0.1- 0.7+ 990326 046 0.0 0.0
981116 704 1.2- 1.4- 981207 104 0.6+ 0.5- 990326 046 0.6- 0.3-
981117 734 0.5- 0.2+ 981207 104 0.2+ 0.3- 990326 046 0.0 0.4+
981117 711 0.3- 0.0 981207 104 0.6+ 0.5- 990405 587 0.1- 0.3-
981117 734 0.3- 0.0 981207 104 0.3+ 0.3- 990405 587 1.0- 1.4+
981117 711 0.5- 0.3+ 981209 540 1.4+ 0.2+ 990405 587 0.3+ 1.1+
981117 711 0.8+ 0.6- 981209 540 0.1+ 0.4+ 990406 118 0.4+ 0.5-
981117 596 0.5- 1.4- 981209 540 0.2+ 0.5+ 990406 118 0.1- 0.2+
981117 596 0.6- 0.2- 981209 540 0.4- 0.2+ 990414 360 0.7- 0.5+
981117 106 0.6- 0.0 981211 670 0.6+ 0.1+ 990414 360 0.8- 1.1+
981117 106 0.4- 0.1+ 981211 670 1.1+ 1.3+ 990414 360 0.5- 0.8+
981117 106 0.6- 0.2- 981212 402 0.1- 0.2+ 990507 360 0.7- 0.8-
981117 106 0.4- 0.4- 981212 402 0.0 0.0 990507 360 0.6- 0.8-
981117 587 0.3- 0.3- 981212 402 0.2- 0.2+ 990507 360 0.1+ 0.7-
981117 587 1.7- 0.6- 981220 360 0.2+ 0.5- 990509 046 0.2- 0.3-
981118 046 0.3- 0.1- 981220 360 0.0 0.6- 990509 046 0.3- 1.1+
981118 046 0.1- 0.1+ 981220 360 0.1- 0.5- 990509 046 1.0+ 0.7+
981118 046 0.3- 0.1+ 981220 071 0.0 0.1- 990509 046 0.8+ 0.9+
981118 046 0.3+ 0.0 981220 071 0.4+ 0.2- 990629 413 0.2+ 0.1+
981118 711 0.0 0.2- 981220 071 0.1- 0.2- 990629 413 0.2+ 0.1+
981118 711 0.0 0.4- 981224 402 0.5+ 0.1+ 990702 413 0.0 0.3+
981122 360 0.2- 0.6+ 981224 402 0.3+ 0.1+ 990702 413 0.0 0.3+
981122 360 0.1- 0.6+ 981224 402 0.3+ 0.1+ 990803 413 0.1+ 0.2-
981122 360 0.0 0.4+ 981225 046 0.2+ 0.4+ 990803 413 0.2+ 0.2-
981123 118 0.3+ 0.3+ 981225 046 0.5+ 0.8+ 990804 413 0.1- 0.3-
981123 118 0.5+ 0.2+ 981226 360 0.1+ 0.0 990804 413 0.0 0.1-
981123 118 0.4+ 0.0 981226 360 0.4+ 0.1- 990808 844 0.8+ 1.9+
981123 557 0.2+ 0.3+ 981226 360 0.2+ 0.1- 990808 844 0.5- 0.4-
981123 557 0.3+ 0.4+ 990106 046 0.3+ 0.2- 990808 844 0.5- 0.4-
981123 557 0.2+ 0.3+ 990106 046 0.1+ 0.3- 990901 413 0.0 0.1-
981124 046 0.6+ 0.0 990106 046 0.3+ 0.3- 990901 413 0.1- 0.1+
981124 046 0.0 0.0 990106 540 0.0 0.1- 990920 413 0.2+ 0.3+
981124 046 0.2- 0.1- 990106 540 0.1- 0.2- 990920 413 0.0 0.4+
981124 118 0.1+ 0.2- 990106 540 0.4- 0.1+ 990920 413 0.2- 0.4+
981124 118 0.0 0.1- 990122 402 0.3+ 0.3- 990928 413 0.2- 0.3+
981124 118 0.0 0.1- 990122 402 0.5+ 0.4- 990928 413 0.0 0.2+
981125 540 0.8- 0.6+ 990122 402 0.7+ 0.2- 991016 413 0.0 0.3+
981125 540 0.0 0.7+ 990125 711 0.2+ 0.5+ 991016 413 0.1- 0.4+
981125 540 0.2+ 0.0 990125 711 0.1- 0.3+
981125 540 0.2- 1.2+ 990208 704 0.3- 0.3-
Gareth V. Williams (C) Copyright 2000 MPC M.P.E.C. 2000-S13
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