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Read MPEC 1999-V41
Read MPEC 1999-V43
M.P.E.C. 1999-V42 Issued 1999 Nov. 13, 17:10 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 WV31
Revision to MPEC 1999-A18
Observations:
J98W31V 1C1999 11 10.27125 02 38 23.06 +13 38 34.6 22.4 R 695
J98W31V 1C1999 11 10.36797 02 38 22.46 +13 38 32.3 695
J98W31V 1C1999 11 11.26736 02 38 17.12 +13 38 09.7 23.2 R 695
J98W31V 1C1999 11 11.36240 02 38 16.59 +13 38 07.4 695
Observer details:
695 Kitt Peak. Observers M. W. Buie, S. D. Kern, R. M. Wagner. Measurer
M. W. Buie. 2.3-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
991110 695 0.05- 0.02- 991111 695 0.05- 0.02- MPC 35442
Orbital elements:
1998 WV31
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 40.71769 (2000.0) P Q
n 0.00396943 Peri. 275.83865 +0.89772609 +0.43229622
a 39.5048817 Node 58.57534 -0.35449752 +0.82324458
e 0.2692250 Incl. 5.70991 -0.26157096 +0.36795154
P 248 H 7.7 G 0.15 U 5
Residuals in seconds of arc
981119 695 0.1- 0.1+ 981217 950 0.1- 0.1- 991110 695 0.0 0.3-
981119 695 0.0 0.1+ 981218 950 0.1+ 0.0 991110 695 0.2- 0.1-
981119 695 0.1- 0.2+ 981218 950 0.2+ 0.4- 991111 695 0.2- 0.2+
981217 950 0.1- 0.1+ 990122 568 0.3+ 0.0 991111 695 0.5+ 0.3+
981217 950 0.0 0.1- 990123 568 0.2- 0.0
Ephemeris:
1998 WV31 a,e,i = 39.50, 0.27, 6 q = 28.869
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 11 08 02 38.61 +13 39.6 32.185 33.174 176.0 0.1 22.9
1999 11 18 02 37.63 +13 35.4 32.221 33.181 166.0 0.4 22.9
1999 11 28 02 36.70 +13 31.5 32.286 33.188 155.7 0.7 23.0
1999 12 08 02 35.85 +13 28.1 32.380 33.195 145.4 1.0 23.0
1999 12 18 02 35.13 +13 25.4 32.499 33.202 135.0 1.2 23.0
1999 12 28 02 34.57 +13 23.5 32.639 33.209 124.7 1.4 23.1
2000 01 07 02 34.18 +13 22.4 32.797 33.216 114.4 1.5 23.1
2000 01 17 02 33.98 +13 22.3 32.968 33.223 104.2 1.6 23.1
2000 01 27 02 33.98 +13 23.2 33.146 33.230 94.0 1.7 23.1
2000 02 06 02 34.18 +13 25.0 33.327 33.237 83.9 1.7 23.1
2000 02 16 02 34.59 +13 27.8 33.504 33.244 73.9 1.6 23.1
2000 02 26 02 35.18 +13 31.4 33.673 33.251 64.0 1.5 23.1
2000 03 07 02 35.95 +13 35.9 33.829 33.258 54.2 1.4 23.1
2000 03 17 02 36.88 +13 41.0 33.968 33.265 44.5 1.2 23.1
2000 03 27 02 37.94 +13 46.6 34.087 33.273 34.8 1.0 23.1
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-V42
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