MPEC 1999-B26: 1998 WY31
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M.P.E.C. 1999-B26 Issued 1999 Jan. 28, 23:40 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
1998 WY31
Observations:
J98W31Y* C1998 11 18.42696 04 49 19.14 +22 47 19.1 23.1 R 695
J98W31Y C1998 11 18.49839 04 49 18.81 +22 47 18.7 695
J98W31Y C1999 01 15.19486 04 44 53.45 +22 39 55.9 23.7 R 695
J98W31Y C1999 01 15.29128 04 44 53.08 +22 39 55.3 695
Observer details:
695 Kitt Peak. Observers R. L. Millis, M. W. Buie, R. M. Wagner, J. L.
Elliot, D. W. Willmarth, P. S. Smith, D. L. Harmer, A. Saha. Measurers
M. W. Buie, R. L. Millis, J. L. Elliot. 4-m reflector + CCD, 3.6-m
WIYN Telescope + CCD.
Orbital elements:
1998 WY31
Assumed circular orbit
Epoch 1998 Dec. 13.0 TT = JDT 2451160.5 Marsden
(2000.0) P Q
n 0.00323918 Arg.lat. 9.86022 +0.28492712 -0.95805729
a 45.2389601 Node 63.59067 +0.87709996 +0.24766115
e 0.0000000 Incl. 1.96462 +0.38666808 +0.14418805
P 304 H 7.2 G 0.15
From 4 observations 1998 Nov. 18-1999 Jan. 15.
Ephemeris:
1998 WY31 a,e,i = 45.24, 0.00, 2
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 01 22 04 44.52 +22 39.3 44.586 45.239 131.1 0.9 23.9
1999 02 01 04 44.09 +22 38.5 44.726 45.239 120.9 1.1 23.9
1999 02 11 04 43.81 +22 38.0 44.881 45.239 110.7 1.2 23.9
1999 02 21 04 43.68 +22 37.7 45.048 45.239 100.5 1.2 23.9
1999 03 03 04 43.72 +22 37.8 45.220 45.239 90.5 1.3 23.9
1999 03 13 04 43.92 +22 38.1 45.392 45.239 80.5 1.2 23.9
1999 03 23 04 44.28 +22 38.8 45.559 45.239 70.6 1.2 23.9
1999 04 02 04 44.78 +22 39.7 45.717 45.239 60.9 1.1 23.9
1999 04 12 04 45.42 +22 40.8 45.860 45.239 51.2 1.0 23.9
1999 04 22 04 46.18 +22 42.2 45.986 45.239 41.6 0.8 23.9
1999 05 02 04 47.04 +22 43.7 46.090 45.239 32.0 0.7 23.9
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-B26
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