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M.P.E.C. 2003-Y18 Issued 2003 Dec. 18, 11:56 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 Steven and Michele Kirsch Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 VS
Revision to MPEC 1998-V21
Additional Observations:
J98V00S C2003 12 17.31936 07 46 16.07 -00 18 57.5 21.9 V EY018291
J98V00S C2003 12 17.34230 07 46 13.26 -00 19 13.0 21.5 V EY018291
J98V00S C2003 12 17.36518 07 46 10.46 -00 19 27.6 21.4 V EY018291
J98V00S C2003 12 18.38362 07 44 16.24 -00 29 56.6 21.6 V EY018291
J98V00S C2003 12 18.38769 07 44 15.72 -00 29 58.7 21.3 V EY018291
J98V00S C2003 12 18.39156 07 44 15.25 -00 30 01.1 21.2 V EY018291
Observer details:
291 LPL/Spacewatch II. Observer A. S. Descour. 1.8-m f/2.7 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
031217 291 0.44+ 0.00- 031218 291 0.44+ 0.01- MPC 33574 -0.15 day
Orbital elements:
1998 VS
Epoch 2003 Dec. 27.0 TT = JDT 2453000.5 MPC
M 50.61387 (2000.0) P Q
n 0.59496801 Peri. 147.92311 +0.94636356 -0.30985441
a 1.4000395 Node 230.40641 +0.26562774 +0.90747628
e 0.2775010 Incl. 6.82518 +0.18395084 +0.28368476
P 1.66 H 22.3 G 0.15 U 3
Residuals in seconds of arc
981110 704 1.2- 1.4+ 981112 557 0.5- 0.2- 981121 557 0.2- 0.4+
981110 704 0.7- 1.5+ 981112 557 0.3- 0.2- 981125 046 0.2- 0.5+
981110 704 0.8+ 0.8- 981112 557 0.3- 0.2- 981125 046 0.0 0.0
981110 704 0.3+ 1.7- 981112 046 0.2- 0.5- 981125 046 0.2+ 0.1+
981111 704 0.4+ 0.8+ 981112 046 0.2- 0.1+ 981126 402 0.3- 0.0
981111 704 0.0 1.1+ 981112 046 0.4- 0.2- 981126 402 0.1- 0.0
981111 704 0.4+ 0.1+ 981112 046 0.5- 0.1- 981126 402 0.3- 0.3+
981112 557 0.1- 0.7+ 981114 402 0.2+ 0.3+ 981128 402 0.1- 0.5-
981112 557 (0.2- 2.5+) 981114 402 0.3- 0.4+ 981128 402 0.3+ 0.4-
981112 557 0.3+ 0.1+ 981114 402 0.1- 0.0 981128 402 0.1+ 0.2-
981112 557 0.4+ 0.4+ 981115 360 0.1+ 0.4+ 981212 402 0.3- 0.6-
981112 557 0.3+ 0.7+ 981115 360 0.3- 0.6+ 981212 402 0.0 0.5-
981112 046 0.3+ 0.1+ 981115 360 0.1- 0.7+ 981212 402 0.0 0.7-
981112 046 0.5+ 1.1- 981115 587 0.3+ 0.8- 031217 291 0.0 0.9+
981112 046 0.0 0.6- 981115 587 0.1- 0.7- 031217 291 0.2- 0.2+
981112 046 0.9+ 0.6- 981117 118 0.7+ 0.5+ 031217 291 0.1- 0.4+
981112 402 0.4- 0.8- 981117 118 0.6+ 0.9+ 031218 291 0.1+ 0.1-
981112 402 0.4- 0.8- 981117 118 0.1+ 0.5+ 031218 291 0.0 0.2+
981112 402 0.1- 0.9- 981121 557 0.4+ 0.3+ 031218 291 0.2+ 0.1+
981112 402 0.3- 0.6- 981121 557 0.3+ 0.5-
Ephemeris:
1998 VS a,e,i = 1.40, 0.28, 7 q = 1.0115
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2003 12 17 07 46.84 -00 15.2 0.259 1.195 140.5 31.6 21.1
2003 12 27 07 27.38 -01 21.8 0.281 1.236 150.4 23.1 21.1
2004 01 06 07 08.55 -01 06.8 0.315 1.278 156.3 18.0 21.3
2004 01 16 06 53.76 +00 08.2 0.361 1.320 155.2 18.2 21.6
Timothy B. Spahr (C) Copyright 2003 MPC M.P.E.C. 2003-Y18
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