MPEC 1998-X05: 1998 UR43
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M.P.E.C. 1998-X05 Issued 1998 Dec. 3, 16:15 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 UR43
Observations:
J98U43R* 1998 10 22.35531 02 20 42.94 +11 07 23.2 22.6 R 695
J98U43R 1998 10 22.48840 02 20 42.12 +11 07 19.8 695
J98U43R 1998 11 18.08203 02 18 02.92 +10 55 37.9 695
J98U43R 1998 11 18.15126 02 18 02.53 +10 55 36.5 695
J98U43R 1998 11 18.23630 02 18 02.09 +10 55 33.9 695
Observer details:
695 Kitt Peak. Observers R. L. Millis, M. W. Buie, R. M. Wagner, J. L. Elliot.
Measurers M. W. Buie, R. L. Millis. 4.0-m reflector + CCD.
Orbital elements:
1998 UR43
The following assumed perihelic 2:3 Neptune-resonance orbital elements
keep the object more than 13 AU from Neptune over a 14 000-year period
Epoch 1998 Nov. 3.0 TT = JDT 2451120.5 Marsden
M 0.84651 (2000.0) P Q
n 0.00396277 Peri. 341.05317 +0.81665602 -0.56386458
a 39.5491432 Node 53.89064 +0.54721943 +0.68883020
e 0.1941914 Incl. 8.75741 +0.18336802 +0.45559817
P 249 H 8.0 G 0.15
From 5 observations 1998 Oct. 22-Nov. 18.
Ephemeris:
1998 UR43 a,e,i = 39.55, 0.19, 9 q = 31.869
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 12 03 02 16.74 +10 50.4 31.060 31.871 144.9 1.0 23.1
1998 12 13 02 16.01 +10 47.9 31.172 31.871 134.6 1.3 23.2
1998 12 23 02 15.44 +10 46.2 31.307 31.871 124.2 1.5 23.2
1999 01 02 02 15.04 +10 45.6 31.459 31.871 114.0 1.6 23.2
1999 01 12 02 14.85 +10 46.0 31.623 31.871 103.8 1.7 23.2
1999 01 22 02 14.86 +10 47.5 31.795 31.871 93.6 1.8 23.2
1999 02 01 02 15.08 +10 50.0 31.968 31.872 83.5 1.8 23.3
1999 02 11 02 15.50 +10 53.6 32.138 31.872 73.5 1.7 23.3
1999 02 21 02 16.12 +10 58.2 32.300 31.872 63.6 1.6 23.3
Brian G. Marsden (C) Copyright 1998 MPC M.P.E.C. 1998-X05
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