MPEC 1999-V03: 1998 WH24
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M.P.E.C. 1999-V03 Issued 1999 Nov. 1, 22:30 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 WH24
Revision to MPEC 1998-X08
Observations:
J98W24H 8C1999 10 07.56587 03 44 17.61 +21 30 32.0 568
J98W24H 8C1999 10 07.58927 03 44 17.53 +21 30 31.8 568
J98W24H 5C1999 10 08.60839 03 44 14.00 +21 30 24.7 21.0 R 568
J98W24H 5C1999 10 08.63699 03 44 13.89 +21 30 24.6 20.8 R 568
Observer details:
568 Mauna Kea. Observers W. Romanishin, S. Tegler, S. Sheppard. 10-m
Keck II reflector + CCD, 2.2-m University of Hawaii reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
991007 568 18.0+ 6.4+ 991008 568 18.1+ 5.9+ MPC 35442
Orbital elements:
1998 WH24
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 324.10460 (2000.0) P Q
n 0.00315595 Peri. 51.27734 -0.18170913 -0.97038247
a 46.0308699 Node 49.95361 +0.82531279 -0.23850669
e 0.1021785 Incl. 12.00176 +0.53464062 +0.03837207
P 312 H 4.6 G 0.15 U 7
Residuals in seconds of arc
981119 695 0.3- 0.1- 981125 688 0.1- 0.1+ 981210 684 0.8- 1.3-
981119 695 0.0 0.3- 981125 688 0.1+ 0.1+ 981211 950 0.7+ 0.6-
981124 688 0.6- 0.1+ 981126 688 0.2- 0.0 981212 684 0.2- 1.4-
981124 688 0.4- 0.4+ 981126 688 0.1- 0.2+ 981212 684 0.2+ 0.7-
981124 688 0.1+ 0.5+ 981126 688 0.2- 0.1+ 990106 684 0.1+ 0.4-
981124 688 0.2- 0.5+ 981126 688 0.1- 0.2+ 990106 684 0.4+ 0.4-
981124 688 0.2+ 0.2+ 981126 688 0.2- 0.2+ 990109 684 0.8- 0.3-
981124 688 0.1- 0.2+ 981126 688 0.1+ 0.1+ 990109 684 0.2- 0.8+
981125 688 0.2+ 0.0 981126 688 0.1+ 0.1+ 990122 568 0.1+ 0.3+
981125 688 0.1+ 0.2+ 981126 688 0.1+ 0.2+ 990122 568 0.0 0.2+
981125 688 0.1- 0.1- 981126 688 0.1+ 0.3+ 990123 568 0.1+ 0.4+
981125 688 0.1+ 0.0 981126 688 0.0 0.1- 991007 568 0.1- 0.3+
981125 688 0.1- 0.2+ 981126 688 0.5+ 0.3+ 991007 568 0.1- 0.3+
981125 688 0.1+ 0.5+ 981126 688 0.3+ 0.1+ 991008 568 0.1+ 0.3-
981125 688 0.0 0.1+ 981210 684 1.1+ 1.3- 991008 568 0.0 0.2-
Ephemeris:
1998 WH24 a,e,i = 46.03, 0.10, 12 q = 41.328
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 10 29 03 42.82 +21 27.4 41.480 42.394 156.7 0.5 20.9
1999 11 08 03 42.01 +21 25.4 41.427 42.392 166.9 0.3 20.9
1999 11 18 03 41.16 +21 23.1 41.403 42.391 176.7 0.1 20.9
1999 11 28 03 40.30 +21 20.8 41.411 42.389 172.3 0.2 20.9
1999 12 08 03 39.47 +21 18.4 41.449 42.387 162.0 0.4 20.9
1999 12 18 03 38.70 +21 16.2 41.516 42.385 151.7 0.6 20.9
1999 12 28 03 38.01 +21 14.2 41.610 42.383 141.4 0.8 21.0
2000 01 07 03 37.44 +21 12.4 41.729 42.382 131.1 1.0 21.0
2000 01 17 03 37.00 +21 11.1 41.868 42.380 120.8 1.1 21.0
2000 01 27 03 36.72 +21 10.2 42.022 42.378 110.5 1.2 21.0
2000 02 06 03 36.60 +21 09.8 42.188 42.376 100.4 1.3 21.0
2000 02 16 03 36.65 +21 10.0 42.358 42.374 90.3 1.3 21.1
2000 02 26 03 36.86 +21 10.8 42.529 42.373 80.3 1.3 21.1
2000 03 07 03 37.25 +21 12.1 42.695 42.371 70.3 1.3 21.1
2000 03 17 03 37.79 +21 14.0 42.851 42.369 60.5 1.2 21.1
2000 03 27 03 38.46 +21 16.3 42.992 42.367 50.7 1.0 21.1
2000 04 06 03 39.26 +21 19.1 43.115 42.365 41.0 0.9 21.1
2000 04 16 03 40.17 +21 22.3 43.216 42.364 31.5 0.7 21.0
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-V03
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