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M.P.E.C. 1999-W02 Issued 1999 Nov. 16, 23:47 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 WW24
Revision to MPEC 1998-X13
Observations:
J98W24W C1999 11 09.31622 03 16 01.42 18 47 21.4 696
J98W24W C1999 11 09.37288 03 16 01.07 18 47 20.1 696
J98W24W C1999 11 10.40028 03 15 54.50 18 46 48.7 696
Observer details:
696 Whipple Observatory, Mt. Hopkins. Observer M. Holman. 1.2-m reflector
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
991109 696 62.5- 6.8- 991110 696 62.0- 6.7- MPC 35442
Orbital elements:
1998 WW24
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 22.66298 (2000.0) P Q
n 0.00384370 Peri. 138.36820 +0.96115324 -0.19604711
a 40.3617252 Node 233.97401 +0.14312529 +0.95589119
e 0.2569641 Incl. 13.90066 +0.23600761 +0.21871799
P 256 H 7.8 G 0.15 U 6
Residuals in seconds of arc
981118 695 0.1- 0.2+ 981127 695 0.1+ 0.1- 990123 568 0.1- 0.1-
981118 695 0.2- 0.2- 981217 950 0.6- 0.1- 991109 696 0.1- 0.1-
981118 695 0.3- 0.1+ 981217 950 0.1+ 0.2+ 991109 696 0.1+ 0.3+
981126 695 0.2+ 0.1- 981218 950 0.1- 0.1- 991110 696 0.0 0.2-
981126 695 0.6+ 0.1- 990122 568 0.2+ 0.4+
Ephemeris:
1998 WW24 a,e,i = 40.36, 0.26, 14 q = 29.990
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 11 08 03 16.16 +18 48.0 30.438 31.423 173.5 0.2 22.8
1999 11 18 03 15.10 +18 43.0 30.441 31.428 176.1 0.1 22.7
1999 11 28 03 14.05 +18 37.9 30.475 31.432 165.8 0.4 22.8
1999 12 08 03 13.07 +18 33.1 30.538 31.437 155.4 0.7 22.8
1999 12 18 03 12.19 +18 28.6 30.630 31.441 145.0 1.0 22.9
1999 12 28 03 11.44 +18 24.6 30.747 31.446 134.7 1.3 22.9
2000 01 07 03 10.87 +18 21.3 30.885 31.450 124.3 1.5 22.9
2000 01 17 03 10.49 +18 18.7 31.041 31.455 114.0 1.6 23.0
2000 01 27 03 10.33 +18 16.9 31.210 31.459 103.8 1.7 23.0
2000 02 06 03 10.38 +18 16.1 31.385 31.464 93.7 1.8 23.0
2000 02 16 03 10.66 +18 16.1 31.563 31.468 83.6 1.8 23.0
2000 02 26 03 11.16 +18 17.0 31.737 31.473 73.7 1.7 23.0
2000 03 07 03 11.86 +18 18.7 31.903 31.478 63.8 1.6 23.0
2000 03 17 03 12.75 +18 21.2 32.056 31.482 54.0 1.5 23.0
2000 03 27 03 13.80 +18 24.3 32.192 31.487 44.4 1.3 23.0
2000 04 06 03 15.00 +18 28.0 32.308 31.491 34.8 1.0 23.0
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-W02
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