MPEC 1999-N28: COMET 137P/SHOEMAKER-LEVY 2
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M.P.E.C. 1999-N28 Issued 1999 July 14, 21:47 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
COMET 137P/SHOEMAKER-LEVY 2
Observations:
0137P C1999 07 08.96628 20 19 23.34 -12 50 44.6 18.7 T 627
0137P C1999 07 08.97159 20 19 23.26 -12 50 47.0 19.1 T 627
0137P C1999 07 08.98428 20 19 22.65 -12 50 45.5 18.8 T 627
0137P C1999 07 08.99328 20 19 22.25 -12 50 46.4 19.1 T 627
0137P C1999 07 09.95319 20 18 45.11 -12 50 44.3 19.2 T 627
0137P C1999 07 09.97007 20 18 44.27 -12 50 42.8 19.0 T 627
0137P C1999 07 09.98807 20 18 43.65 -12 50 43.1 19.4 T 627
0137P C1999 07 12.92745 20 16 43.54 -12 51 05.6 18.8 T 627
0137P C1999 07 12.94156 20 16 42.88 -12 51 07.6 17.1 T 159
0137P C1999 07 12.94805 20 16 42.63 -12 51 06.8 17.2 T 159
0137P C1999 07 12.95233 20 16 42.46 -12 51 06.9 17.4 T 159
0137P C1999 07 12.95307 20 16 42.47 -12 51 04.9 18.7 T 627
0137P C1999 07 12.95658 20 16 42.29 -12 51 06.6 17.5 T 159
0137P C1999 07 12.97761 20 16 41.31 -12 51 07.6 17.5 T 159
0137P C1999 07 12.98106 20 16 41.18 -12 51 06.5 19.0 T 627
0137P C1999 07 12.98142 20 16 41.17 -12 51 07.4 17.6 T 159
0137P C1999 07 12.98335 20 16 41.05 -12 51 07.0 17.5 T 159
0137P C1999 07 13.00233 20 16 40.22 -12 51 07.9 17.4 T 159
0137P C1999 07 13.29738 20 16 27.75 -12 51 12.4 18.0 T 704
0137P C1999 07 13.30982 20 16 27.23 -12 51 11.7 18.3 T 704
0137P C1999 07 13.32227 20 16 26.70 -12 51 12.4 18.6 T 704
0137P C1999 07 13.33468 20 16 26.09 -12 51 12.4 18.2 T 704
0137P C1999 07 13.34706 20 16 25.57 -12 51 12.3 18.4 T 704
0137P C1999 07 13.90997 20 16 01.52 -12 51 24.8 17.4 T 159
0137P C1999 07 13.91887 20 16 01.10 -12 51 24.7 17.7 T 159
Observer details:
159 Monte Agliale. Observer S. Donati. 0.51-m f/4.5 reflector + CCD.
627 Blauvac. Observer R. Roy. 0.26-m f/4.7 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, F. Shelly,
M. Bezpalko, M. Elowitz. Measurers J. Stuart, H. Viggh, R. Sayer. 1.0-m
f/2.15 reflector + CCD.
Orbital elements:
137P/Shoemaker-Levy 2
Epoch 2000 Jan. 17.0 TT = JDT 2451560.5
T 2000 Feb. 5.82304 TT Williams
q 1.8685705 (2000.0) P Q
n 0.10514061 Peri. 142.02055 +0.95579192 -0.28647033
a 4.4458594 Node 234.75335 +0.24598275 +0.90252298
e 0.5797054 Incl. 4.65702 +0.16110338 +0.32153852
P 9.37
From 51 observations 1990 Sept. 17-1999 July 13, mean residual 0".78.
Ephemeris:
137P/Shoemaker-Levy 2
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
1999 07 11 20 18.05 -12 50.7 1.663 2.653 163.2 6.4 16.3 18.7
1999 07 21 20 10.62 -12 55.9 1.586 2.596 171.9 3.2 16.1 18.4
1999 07 31 20 02.38 -13 08.6 1.535 2.540 169.7 4.1 16.0 18.3
1999 08 10 19 54.33 -13 26.8 1.509 2.485 159.7 8.1 15.8 18.4
1999 08 20 19 47.54 -13 47.9 1.507 2.430 148.9 12.4 15.7 18.6
1999 08 30 19 42.96 -14 09.2 1.525 2.377 138.4 16.4 15.7 18.7
1999 09 09 19 41.19 -14 28.1 1.561 2.325 128.4 19.8 15.6 18.8
1999 09 19 19 42.59 -14 42.7 1.610 2.274 119.1 22.7 15.6 18.9
1999 09 29 19 47.21 -14 50.7 1.668 2.226 110.5 24.9 15.6 19.0
1999 10 09 19 54.89 -14 50.7 1.732 2.179 102.5 26.6 15.6 19.1
1999 10 19 20 05.40 -14 40.8 1.799 2.134 95.2 27.7 15.6 19.2
1999 10 29 20 18.42 -14 19.7 1.868 2.092 88.4 28.3 15.6 19.2
1999 11 08 20 33.62 -13 46.2 1.937 2.052 82.2 28.6 15.6 19.3
1999 11 18 20 50.71 -12 59.4 2.006 2.016 76.3 28.5 15.6 19.3
1999 11 28 21 09.37 -11 58.8 2.072 1.983 70.9 28.1 15.6 19.3
1999 12 08 21 29.34 -10 44.3 2.138 1.953 65.8 27.4 15.6 19.3
1999 12 18 21 50.38 -09 16.2 2.201 1.928 61.1 26.5 15.6 19.3
1999 12 28 22 12.27 -07 35.5 2.264 1.907 56.5 25.5 15.6 19.3
2000 01 07 22 34.83 -05 43.3 2.325 1.890 52.3 24.3 15.6 19.3
2000 01 17 22 57.94 -03 41.2 2.385 1.878 48.2 23.0 15.6 19.3
2000 01 27 23 21.45 -01 31.5 2.446 1.871 44.2 21.5 15.7 19.3
2000 02 06 23 45.28 +00 43.7 2.506 1.869 40.5 20.0 15.7 19.4
2000 02 16 00 09.38 +03 02.0 2.566 1.871 36.8 18.4 15.8 19.4
2000 02 26 00 33.68 +05 20.7 2.627 1.879 33.2 16.8 15.8 19.4
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-N28
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