MPEC 2000-S07 : 1998 YB8
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M.P.E.C. 2000-S07 Issued 2000 Sept. 19, 21:16 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
1998 YB8
Revision to MPEC 1998-Y31
Observations:
J98Y08B 2 1984 01 03.66933 08 51 50.91 +19 15 55.6 260
J98Y08B 2 1984 01 03.71100 08 51 52.89 +19 17 01.3 260
Observer details:
260 Siding Spring Observatory-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 (or two decimals in degrees), reference and Delta-T
840103 260 2.21- 0.27+ 840103 260 2.21- 0.27+ MPC 34313 +0.81 day
Orbital elements:
1998 YB8
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5 Williams
M 167.06464 (2000.0) P Q
n 0.26193146 Peri. 342.32739 +0.01260232 -0.98893066
a 2.4192325 Node 106.75080 +0.93504478 -0.04073452
e 0.4721834 Incl. 8.88163 +0.35430556 +0.14267746
P 3.76 H 18.9 G 0.15 U 2
Residuals in seconds of arc
840103 260 0.3+ 0.1- 981225 108 1.6+ 0.0 990110 699 0.1- 0.9-
840103 260 0.3- 0.0 981225 046 0.3- 0.0 990110 699 0.1- 0.8-
981215 704 1.2+ 0.4+ 981225 046 0.5- 0.1+ 990110 699 0.3+ 0.9-
981215 704 0.4- 1.1- 981225 046 0.4- 0.3- 990115 426 0.5+ 1.0+
981215 704 0.4+ 0.5- 981225 108 0.4- 1.2+ 990115 426 0.4+ 0.0
981215 704 0.1+ 1.2+ 981225 046 0.0 0.2+ 990115 426 0.5+ 0.1+
981215 704 0.3- 1.5- 981225 046 0.4- 0.3+ 990116 118 0.4+ 0.0
981222 704 0.8+ 1.8- 981225 108 0.0 1.6- 990117 118 0.3+ 0.4-
981222 704 0.7+ 0.8- 981225 108 1.2- 1.2- 990118 402 0.6+ 0.3+
981222 704 0.4- 1.1- 981226 734 1.3+ 0.4+ 990118 402 0.9+ 0.1+
981222 704 0.6+ 0.4- 981226 734 0.9+ 0.4+ 990118 402 0.9+ 0.2+
981223 557 0.1- 0.7+ 981226 734 0.7- 0.3- 990124 071 1.0+ 1.6+
981223 557 0.1+ 0.5+ 981226 684 0.1- 0.7- 990125 711 0.3- 0.2-
981223 557 0.1- 0.5+ 981226 684 0.4- 0.5- 990125 711 0.2- 0.1-
981223 113 0.3+ 1.3+ 981226 620 0.4+ 0.8- 990126 402 0.0 0.3-
981223 113 0.4- 0.9+ 981226 620 0.0 0.7- 990126 402 0.0 0.0
981223 113 0.0 1.4+ 981226 620 0.2- 0.6- 990126 402 0.1- 0.4-
981223 113 0.4- 1.7+ 981226 620 0.6- 0.5- 990204 402 0.5+ 0.2-
981224 046 0.2+ 0.6+ 981227 104 1.0+ 0.3- 990204 402 0.1+ 0.4-
981224 046 0.3- 0.6+ 981227 104 1.0+ 0.5- 990204 402 0.1+ 0.3-
981224 046 0.2+ 0.9+ 981227 402 0.0 0.5- 990208 402 0.4+ 0.7-
981224 046 0.5- 0.6+ 981227 402 0.1+ 0.4- 990208 402 0.0 0.0
981225 428 0.3- 0.5+ 981227 402 0.0 0.4- 990208 402 0.4+ 0.0
981225 428 0.4- 0.7+ 981231 046 0.5+ 0.3- 990219 711 1.9- 0.1-
981225 402 0.7- 0.1+ 981231 046 0.1+ 0.2- 990219 711 0.1- 0.1+
981225 402 0.4- 0.1+ 981231 046 0.3+ 0.1- 990220 711 0.5+ 0.4+
981225 402 0.3- 0.2+ 981231 046 0.6+ 0.2- 990220 711 0.8+ 0.1-
981225 402 0.2- 0.4+ 990106 557 0.5- 0.1+ 990220 402 0.1- 0.0
981225 422 0.1- 0.6+ 990106 557 0.4- 0.1- 990220 402 0.5- 0.4+
981225 422 0.3- 0.4+ 990106 557 0.3- 0.2+ 990220 402 0.3+ 0.1+
981225 422 0.0 0.8+ 990106 422 1.3- 0.7+ 990312 711 1.1- 0.7+
981225 422 0.2- 0.3+ 990106 422 1.5- 0.3- 990312 711 0.1- 0.0
981225 422 0.4- 0.2+ 990106 422 1.0- 0.2-
Timothy B. Spahr (C) Copyright 2000 MPC M.P.E.C. 2000-S07
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