MPEC 1999-T50: 1998 WX24
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M.P.E.C. 1999-T50 Issued 1999 Oct. 13, 15:07 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 WX24
Revision to MPEC 1998-X14
Observations:
J98W24X 5C1999 10 09.58354 03 33 00.86 +19 03 21.1 23.0 R 568
J98W24X 5C1999 10 09.61509 03 33 00.70 +19 03 20.6 22.8 R 568
J98W24X 5C1999 10 10.51748 03 32 57.52 +19 03 09.6 22.7 R 568
J98W24X 5C1999 10 10.58385 03 32 57.32 +19 03 09.0 22.9 R 568
Observer details:
568 Mauna Kea. Observer S. Sheppard. 2.2-m University of Hawaii reflector
+ CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
991009 568 0.03- 0.01- 991010 568 0.03- 0.01- MPC 35442
Orbital elements:
1998 WX24
Eccentricity assumed
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 185.42001 (2000.0) P Q
n 0.00342231 Peri. 168.70165 -0.64942966 +0.76029257
a 43.6103697 Node 60.79808 -0.69891821 -0.58954244
e 0.0347403 Incl. 0.91974 -0.29959046 -0.27275432
P 288 H 6.6 G 0.15
Residuals in seconds of arc
981118 695 0.4+ 0.1- 981218 950 0.1- 0.5- 991009 568 0.2- 0.1-
981118 695 0.4- 0.0 981218 950 0.2- 0.4- 991010 568 0.4- 0.2-
981126 695 0.3+ 0.2+ 990122 568 0.1+ 0.2+ 991010 568 0.1+ 0.1+
981127 695 0.4+ 0.3+ 990123 568 0.2+ 1.0+
981218 950 0.6- 0.4- 991009 568 0.5+ 0.1+
Ephemeris:
1998 WX24 a,e,i = 43.61, 0.03, 1 q = 42.095
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 10 09 03 33.05 +19 03.5 44.352 45.119 139.7 0.8 23.2
1999 10 19 03 32.42 +19 01.3 44.255 45.118 149.8 0.6 23.2
1999 10 29 03 31.72 +18 58.9 44.184 45.118 159.9 0.4 23.2
1999 11 08 03 30.96 +18 56.2 44.142 45.118 170.1 0.2 23.2
1999 11 18 03 30.17 +18 53.5 44.130 45.118 179.7 0.0 23.1
1999 11 28 03 29.38 +18 50.7 44.148 45.118 169.4 0.2 23.2
1999 12 08 03 28.63 +18 48.1 44.197 45.118 159.1 0.4 23.2
1999 12 18 03 27.93 +18 45.6 44.274 45.118 148.7 0.6 23.2
1999 12 28 03 27.32 +18 43.5 44.378 45.118 138.4 0.8 23.2
2000 01 07 03 26.82 +18 41.7 44.505 45.118 128.1 1.0 23.3
2000 01 17 03 26.45 +18 40.4 44.651 45.118 117.8 1.1 23.3
2000 01 27 03 26.23 +18 39.7 44.811 45.117 107.6 1.2 23.3
2000 02 06 03 26.15 +18 39.5 44.980 45.117 97.4 1.2 23.3
2000 02 16 03 26.24 +18 39.8 45.153 45.117 87.3 1.3 23.3
2000 02 26 03 26.48 +18 40.7 45.325 45.117 77.3 1.2 23.3
2000 03 07 03 26.87 +18 42.2 45.490 45.117 67.3 1.2 23.3
2000 03 17 03 27.40 +18 44.1 45.644 45.117 57.5 1.1 23.3
2000 03 27 03 28.05 +18 46.5 45.782 45.117 47.7 0.9 23.3
2000 04 06 03 28.81 +18 49.3 45.901 45.117 38.0 0.8 23.3
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-T50
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