MPEC 2001-X69: 2001 XR31
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M.P.E.C. 2001-X69 Issued 2001 Dec. 15, 15:10 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.
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2001 XR31
Observations:
K01X31R* C2001 12 13.36714 08 54 24.51 +27 16 49.9 19.7 704
K01X31R C2001 12 13.38286 08 54 23.52 +27 16 48.1 20.4 704
K01X31R C2001 12 13.39843 08 54 22.26 +27 16 46.6 20.4 704
K01X31R C2001 12 13.41361 08 54 21.29 +27 16 44.6 20.0 704
K01X31R C2001 12 14.44562 08 53 11.09 +27 14 35.8 19.3 704
K01X31R C2001 12 14.46098 08 53 09.96 +27 14 34.3 19.7 704
K01X31R C2001 12 14.47633 08 53 08.83 +27 14 32.5 19.5 704
K01X31R C2001 12 14.49169 08 53 07.70 +27 14 30.5 19.5 704
K01X31R C2001 12 14.50704 08 53 06.59 +27 14 28.3 19.2 704
K01X31R C2001 12 15.04906 08 52 28.63 +27 13 19.7 19.1 R 046
K01X31R C2001 12 15.05101 08 52 28.54 +27 13 20.3 046
K01X31R C2001 12 15.05270 08 52 28.40 +27 13 19.6 19.0 R 046
K01X31R C2001 12 15.05440 08 52 28.36 +27 13 19.9 046
K01X31R C2001 12 15.05611 08 52 28.19 +27 13 19.3 19.2 R 046
Observer details:
046 Klet. Observers J. Ticha, M. Tichy, P. Jelinek. 0.57-m f/5.2 reflector
+ CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli. Measurers
J. Stuart, R. Sayer, J. B. Evans, H. Viggh. 1.0-m f/2.15 reflector + CCD.
Orbital elements:
2001 XR31
Epoch 2001 Nov. 27.0 TT = JDT 2452240.5 MPC
M 31.82446 (2000.0) P Q
n 0.29516570 Peri. 60.50798 +0.97479272 -0.15796660
a 2.2340461 Node 308.12583 +0.05839195 +0.86221159
e 0.5139706 Incl. 11.55409 +0.21533586 +0.48128758
P 3.34 H 17.6 G 0.15
From 14 observations 2001 Dec. 13-15.
Ephemeris:
2001 XR31 a,e,i = 2.23, 0.51, 12 q = 1.0858
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 12 07 09 00.25 +27 31.7 0.896 1.666 124.7 29.1 19.7
2001 12 17 08 50.05 +27 09.5 0.882 1.735 136.8 22.8 19.6
2001 12 27 08 34.83 +26 49.5 0.883 1.803 150.0 15.8 19.5
2002 01 06 08 16.55 +26 23.1 0.907 1.871 163.8 8.5 19.3
2002 01 16 07 57.87 +25 45.6 0.956 1.937 175.0 2.6 19.2
2002 01 26 07 41.46 +24 58.0 1.032 2.003 166.6 6.5 19.7
2002 02 05 07 29.09 +24 05.2 1.134 2.067 154.2 12.0 20.2
2002 02 15 07 21.34 +23 12.4 1.259 2.129 142.5 16.4 20.6
2002 02 25 07 18.06 +22 22.3 1.402 2.190 131.8 19.7 21.0
2002 03 07 07 18.63 +21 35.7 1.560 2.250 122.0 22.0 21.4
2002 03 17 07 22.35 +20 52.0 1.730 2.308 113.0 23.4 21.7
2002 03 27 07 28.58 +20 09.6 1.906 2.364 104.6 24.1 22.0
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-X69
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