MPEC 2001-V13 : 2001 UN18, 2001 UO18, 2001 UP18, 2001 UQ18
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M.P.E.C. 2001-V13 Issued 2001 Nov. 2, 04:10 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 UN18, 2001 UO18, 2001 UP18, 2001 UQ18
Observations:
K01U18N* C2001 10 19.38168 01 09 28.96 +07 05 21.1 22.7 R 695
K01U18N C2001 10 19.42429 01 09 28.81 +07 05 19.8 695
K01U18N C2001 10 20.37617 01 09 24.85 +07 04 56.5 695
K01U18O* C2001 10 19.38539 01 09 58.42 +06 10 53.4 22.3 R 695
K01U18O C2001 10 19.42801 01 09 58.18 +06 10 52.1 695
K01U18O C2001 10 20.37986 01 09 52.77 +06 10 20.7 695
K01U18P* C2001 10 19.38539 01 10 14.23 +06 09 45.1 22.3 R 695
K01U18P C2001 10 19.42801 01 10 14.07 +06 09 44.1 695
K01U18P C2001 10 20.37986 01 10 10.43 +06 09 21.1 695
K01U18Q* C2001 10 20.39131 03 19 44.54 +22 37 33.1 22.0 R 695
K01U18Q C2001 10 21.28067 03 19 40.71 +22 37 21.8 695
K01U18Q C2001 10 21.34147 03 19 40.44 +22 37 21.0 695
Observer details:
695 Kitt Peak. Observers J. L. Elliot, S. D. Kern, K. E. Washburn.
Measurers M. W. Buie, L. H. Wasserman, R. L. Millis, J. L. Elliot,
S. D. Kern.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
K01U18N 6.5 0.15 K01AI 0.000 355.042 23.824 3.000 0.0 46.14907 1EM
K01U18O 7.6 0.15 K01AI 359.995 342.500 36.185 3.712 0.18502 39.55267 1EM
K01U18P 5.7 0.15 K01AI 179.816 11.683 187.204 5.855 0.13056 44.53879 1EM
K01U18Q 5.8 0.15 K01AI 0.000 53.700 359.276 5.021 0.0 45.19447 1EM
Ephemerides:
2001 UN18 a,e,i = 46.15, 0.00, 3
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 28 01 08.90 +07 01.9 45.193 46.149 163.9 0.3 23.2
2001 11 07 01 08.25 +06 58.1 45.258 46.149 153.8 0.5 23.2
2001 11 17 01 07.68 +06 54.7 45.350 46.149 143.6 0.7 23.2
2001 11 27 01 07.19 +06 51.8 45.467 46.149 133.3 0.9 23.3
2001 12 07 01 06.80 +06 49.6 45.604 46.149 123.1 1.0 23.3
2001 12 17 01 06.54 +06 48.2 45.758 46.149 112.8 1.1 23.3
2001 12 27 01 06.41 +06 47.5 45.924 46.149 102.6 1.2 23.3
2002 01 06 01 06.42 +06 47.8 46.097 46.149 92.4 1.2 23.3
2002 01 16 01 06.56 +06 48.8 46.271 46.149 82.3 1.2 23.3
2002 01 26 01 06.85 +06 50.7 46.441 46.149 72.2 1.2 23.3
2002 02 05 01 07.27 +06 53.5 46.601 46.149 62.2 1.1 23.3
2002 02 15 01 07.80 +06 56.9 46.748 46.149 52.2 1.0 23.3
2002 02 25 01 08.45 +07 01.0 46.877 46.149 42.3 0.8 23.3
2002 03 07 01 09.18 +07 05.6 46.983 46.149 32.4 0.7 23.3
2001 UO18 a,e,i = 39.55, 0.19, 4 q = 32.235
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 28 01 09.17 +06 06.3 31.280 32.235 163.6 0.5 22.7
2001 11 07 01 08.30 +06 01.3 31.346 32.235 153.4 0.8 22.8
2001 11 17 01 07.51 +05 57.0 31.438 32.235 143.1 1.1 22.8
2001 11 27 01 06.86 +05 53.4 31.555 32.235 132.9 1.3 22.8
2001 12 07 01 06.36 +05 50.9 31.693 32.235 122.6 1.5 22.8
2001 12 17 01 06.03 +05 49.5 31.848 32.235 112.4 1.6 22.9
2001 12 27 01 05.90 +05 49.3 32.014 32.235 102.1 1.7 22.9
2002 01 06 01 05.96 +05 50.3 32.186 32.235 92.0 1.7 22.9
2002 01 16 01 06.22 +05 52.5 32.360 32.235 81.9 1.7 22.9
2002 01 26 01 06.68 +05 55.9 32.529 32.235 71.8 1.7 22.9
2002 02 05 01 07.32 +06 00.4 32.689 32.235 61.8 1.5 22.9
2002 02 15 01 08.13 +06 05.9 32.835 32.235 51.9 1.4 22.9
2002 02 25 01 09.09 +06 12.3 32.962 32.235 42.1 1.2 22.9
2002 03 07 01 10.17 +06 19.4 33.069 32.235 32.4 0.9 22.9
2001 UP18 a,e,i = 44.54, 0.13, 6 q = 38.724
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 28 01 09.70 +06 06.3 49.399 50.354 163.7 0.3 22.8
2001 11 07 01 09.10 +06 02.7 49.464 50.354 153.6 0.5 22.8
2001 11 17 01 08.57 +05 59.3 49.557 50.354 143.4 0.7 22.8
2001 11 27 01 08.11 +05 56.6 49.674 50.354 133.2 0.8 22.8
2001 12 07 01 07.75 +05 54.4 49.811 50.354 122.9 0.9 22.8
2001 12 17 01 07.50 +05 52.9 49.966 50.354 112.7 1.0 22.9
2001 12 27 01 07.38 +05 52.2 50.132 50.354 102.5 1.1 22.9
2002 01 06 01 07.37 +05 52.3 50.305 50.354 92.3 1.1 22.9
2002 01 16 01 07.50 +05 53.2 50.479 50.354 82.2 1.1 22.9
2002 01 26 01 07.75 +05 54.9 50.649 50.354 72.1 1.1 22.9
2002 02 05 01 08.13 +05 57.2 50.809 50.354 62.0 1.0 22.9
2002 02 15 01 08.61 +06 00.3 50.956 50.354 52.0 0.9 22.9
2002 02 25 01 09.19 +06 03.8 51.084 50.354 42.1 0.8 22.9
2002 03 07 01 09.86 +06 07.9 51.190 50.354 32.2 0.6 22.9
2001 UQ18 a,e,i = 45.19, 0.00, 5
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2001 10 28 03 19.18 +22 35.8 44.255 45.194 160.9 0.4 22.4
2001 11 07 03 18.40 +22 33.3 44.217 45.194 170.6 0.2 22.4
2001 11 17 03 17.59 +22 30.4 44.209 45.194 175.5 0.1 22.3
2001 11 27 03 16.80 +22 27.4 44.231 45.194 167.3 0.3 22.4
2001 12 07 03 16.04 +22 24.4 44.284 45.194 157.3 0.5 22.4
2001 12 17 03 15.35 +22 21.5 44.365 45.194 147.1 0.7 22.4
2001 12 27 03 14.76 +22 18.7 44.472 45.194 136.8 0.9 22.5
2002 01 06 03 14.29 +22 16.3 44.602 45.194 126.6 1.0 22.5
2002 01 16 03 13.95 +22 14.2 44.750 45.194 116.3 1.1 22.5
2002 01 26 03 13.76 +22 12.7 44.911 45.194 106.1 1.2 22.5
2002 02 05 03 13.72 +22 11.7 45.081 45.194 96.0 1.2 22.5
2002 02 15 03 13.85 +22 11.3 45.254 45.194 85.9 1.2 22.5
2002 02 25 03 14.13 +22 11.5 45.425 45.194 75.9 1.2 22.5
2002 03 07 03 14.56 +22 12.4 45.589 45.194 66.0 1.1 22.5
2002 03 17 03 15.14 +22 13.8 45.740 45.194 56.2 1.0 22.5
2002 03 27 03 15.83 +22 15.8 45.876 45.194 46.5 0.9 22.5
2002 04 06 03 16.64 +22 18.3 45.991 45.194 36.9 0.8 22.5
The assumed perihelic Neptune 2:3-resonance orbit for 2001 UO18 keeps
the object more than 15 AU from Neptune over a 14 000-year period.
Brian G. Marsden (C) Copyright 2001 MPC M.P.E.C. 2001-V13
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