MPEC 1999-U25: 1999 UM3
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M.P.E.C. 1999-U25 Issued 1999 Oct. 24, 21:46 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
1999 UM3
Observations:
J99U03M* C1999 10 19.39799 06 52 24.40 +06 39 11.7 18.4 704
J99U03M C1999 10 19.41175 06 52 27.56 +06 39 04.2 18.8 704
J99U03M C1999 10 19.42542 06 52 30.71 +06 38 56.6 18.6 704
J99U03M C1999 10 19.43911 06 52 33.85 +06 38 49.0 18.7 704
J99U03M C1999 10 19.45277 06 52 37.00 +06 38 42.1 18.3 704
J99U03M C1999 10 21.40087 07 00 22.91 +06 20 29.4 18.6 704
J99U03M C1999 10 21.41663 07 00 26.77 +06 20 20.0 19.6 704
J99U03M C1999 10 21.43187 07 00 30.37 +06 20 11.3 18.1 704
J99U03M C1999 10 21.44761 07 00 34.19 +06 20 02.2 19.1 704
J99U03M C1999 10 21.46284 07 00 37.82 +06 19 53.4 18.7 704
J99U03M C1999 10 22.36910 07 04 21.79 +06 10 58.6 18.3 V 734
J99U03M C1999 10 22.37131 07 04 22.36 +06 10 57.4 18.4 V 734
J99U03M C1999 10 22.37354 07 04 22.96 +06 10 56.2 18.5 V 734
J99U03M C1999 10 22.42039 07 04 34.56 +06 10 28.3 18.6 704
J99U03M C1999 10 22.42056 07 04 34.63 +06 10 28.1 18.4 704
J99U03M C1999 10 22.42073 07 04 34.70 +06 10 27.8 18.3 704
J99U03M C1999 10 22.43330 07 04 37.79 +06 10 19.8 19.7 704
J99U03M C1999 10 22.43347 07 04 37.84 +06 10 19.6 19.2 704
J99U03M C1999 10 22.43364 07 04 37.87 +06 10 19.8 18.8 704
J99U03M 1C1999 10 22.43736 07 04 38.86 +06 10 15.6 658
J99U03M 1C1999 10 22.44150 07 04 39.89 +06 10 12.7 658
J99U03M 1C1999 10 22.44368 07 04 40.41 +06 10 12.4 658
J99U03M C1999 10 22.44604 07 04 40.92 +06 10 13.1 19.2 704
J99U03M C1999 10 22.44621 07 04 40.94 +06 10 12.6 18.9 704
J99U03M C1999 10 22.44638 07 04 40.97 +06 10 12.4 18.8 704
J99U03M C1999 10 22.45882 07 04 44.02 +06 10 04.7 19.0 704
J99U03M C1999 10 22.45899 07 04 44.09 +06 10 04.6 18.9 704
J99U03M C1999 10 22.45916 07 04 44.11 +06 10 05.0 19.0 704
J99U03M C1999 10 22.47176 07 04 47.23 +06 09 57.1 18.9 704
J99U03M C1999 10 22.47193 07 04 47.25 +06 09 57.4 18.7 704
J99U03M C1999 10 22.47210 07 04 47.31 +06 09 57.1 18.6 704
J99U03M 1C1999 10 23.44510 07 08 53.37 +06 00 00.7 658
J99U03M 1C1999 10 23.44656 07 08 53.82 +05 59 59.4 658
J99U03M 1C1999 10 23.44876 07 08 54.38 +05 59 58.2 658
Observer details:
658 Dominion Astrophysical Observatory. Observer D. D. Balam. 1.82-m
reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, M. Elowitz, R. Huber. Measurers J. Stuart, H. Viggh,
R. Sayer. 1.0-m f/2.15 reflector + CCD.
734 Farpoint Observatory. Observer G. Hug. 0.30-m Schmidt-Cassegrain + CCD.
Orbital elements:
1999 UM3
Epoch 1999 Oct. 9.0 TT = JDT 2451460.5 Williams
M 346.56230 (2000.0) P Q
n 0.15714973 Peri. 29.28379 -0.82524371 -0.53919835
a 3.4008981 Node 117.13204 +0.47445897 -0.82327586
e 0.7581338 Incl. 10.88391 +0.30636826 -0.17743167
P 6.27 H 16.5 G 0.15
From 34 observations 1999 Oct. 19-23.
Ephemeris:
1999 UM3 a,e,i = 3.40, 0.76, 11 q = 0.8226
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 10 19 06 50.85 +06 42.8 0.820 1.411 101.5 43.8 18.5
1999 10 24 07 11.26 +05 54.4 0.750 1.357 101.2 46.0 18.3
1999 10 29 07 34.13 +04 57.1 0.686 1.303 100.2 48.6 18.1
1999 11 03 07 59.91 +03 49.8 0.628 1.250 98.5 51.7 17.9
1999 11 08 08 29.03 +02 31.8 0.577 1.197 95.9 55.4 17.7
1999 11 13 09 01.78 +01 03.3 0.536 1.146 92.5 59.7 17.6
1999 11 18 09 38.14 -00 34.2 0.504 1.096 88.2 64.4 17.5
1999 11 23 10 17.58 -02 16.5 0.483 1.048 83.3 69.4 17.5
1999 11 28 10 58.97 -03 57.7 0.475 1.002 78.0 74.4 17.5
1999 12 03 11 40.70 -05 31.1 0.480 0.960 72.7 78.8 17.6
1999 12 08 12 21.12 -06 51.9 0.496 0.922 67.9 82.2 17.7
1999 12 13 12 59.01 -07 58.4 0.523 0.888 63.9 84.2 17.8
1999 12 18 13 33.75 -08 52.0 0.558 0.861 60.7 84.9 17.9
1999 12 28 14 33.81 -10 11.4 0.648 0.828 56.6 82.6 18.0
2000 01 07 15 23.51 -11 09.3 0.751 0.826 54.9 77.0 18.2
2000 01 17 16 05.58 -11 53.1 0.856 0.856 55.0 70.1 18.3
2000 01 27 16 41.82 -12 23.5 0.954 0.914 56.3 63.6 18.5
2000 02 06 17 13.16 -12 39.6 1.038 0.993 58.7 58.0 18.7
2000 02 16 17 40.06 -12 42.3 1.107 1.086 62.1 53.5 18.9
2000 02 26 18 02.83 -12 34.1 1.160 1.186 66.4 49.9 19.1
2000 03 07 18 21.65 -12 18.1 1.196 1.292 71.7 46.8 19.2
2000 03 17 18 36.55 -11 58.0 1.217 1.400 77.8 44.0 19.3
2000 03 27 18 47.52 -11 37.3 1.224 1.508 84.9 41.2 19.4
2000 04 06 18 54.44 -11 19.4 1.221 1.616 92.8 38.2 19.5
2000 04 16 18 57.11 -11 07.7 1.211 1.723 101.8 34.8 19.5
2000 04 26 18 55.40 -11 05.1 1.199 1.828 111.7 30.8 19.5
2000 05 06 18 49.31 -11 13.9 1.190 1.931 122.7 26.1 19.5
2000 05 16 18 39.16 -11 35.1 1.192 2.033 134.5 20.8 19.4
2000 05 26 18 25.78 -12 07.8 1.210 2.132 146.9 15.0 19.4
2000 06 05 18 10.49 -12 49.5 1.251 2.229 159.2 9.3 19.3
2000 06 15 17 54.95 -13 36.8 1.319 2.324 169.2 4.7 19.3
2000 06 25 17 40.77 -14 26.4 1.414 2.417 167.7 5.1 19.6
2000 07 05 17 29.08 -15 15.8 1.537 2.508 157.8 8.8 20.0
2000 07 15 17 20.53 -16 03.8 1.685 2.597 147.0 12.3 20.4
2000 07 25 17 15.20 -16 49.8 1.855 2.684 136.5 15.1 20.8
2000 08 04 17 12.92 -17 33.5 2.042 2.769 126.6 17.1 21.2
2000 08 14 17 13.36 -18 14.7 2.242 2.853 117.3 18.4 21.5
2000 08 24 17 16.11 -18 53.1 2.453 2.934 108.4 19.1 21.8
2000 09 03 17 20.82 -19 28.4 2.671 3.014 99.9 19.2 22.0
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-U25
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