MPEC 1998-O19: 1998 OR2
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M.P.E.C. 1998-O19 Issued 1998 July 27, 17:36 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 OR2
Observations:
J98O02R* C1998 07 24.44633 21 33 56.00 -26 56 37.1 18.8 V 566
J98O02R C1998 07 24.46730 21 33 53.93 -26 56 45.6 20.0 V 566
J98O02R C1998 07 24.48836 21 33 51.77 -26 56 53.0 19.7 V 566
J98O02R C1998 07 25.35624 21 32 26.67 -27 02 04.0 17.0 R 673
J98O02R C1998 07 25.36058 21 32 26.22 -27 02 05.5 673
J98O02R C1998 07 26.37667 21 30 46.10 -27 07 55.6 16.4 R 673
J98O02R C1998 07 26.38023 21 30 45.83 -27 07 56.6 673
J98O02R C1998 07 26.94115 21 29 50.58 -27 11 04.4 18.7 V 104
J98O02R C1998 07 26.94525 21 29 50.15 -27 11 06.2 104
J98O02R C1998 07 26.94896 21 29 49.76 -27 11 08.1 104
J98O02R C1998 07 26.99135 21 29 45.44 -27 11 21.3 18.0 V 046
J98O02R C1998 07 26.99260 21 29 45.29 -27 11 22.1 046
J98O02R C1998 07 26.99362 21 29 45.14 -27 11 22.1 046
J98O02R C1998 07 26.99605 21 29 44.94 -27 11 23.5 046
J98O02R C1998 07 26.99984 21 29 44.57 -27 11 24.1 17.6 V 046
Observer details:
046 Klet. Observers J. Ticha, M. Tichy. Measurer M. Tichy. 0.57-m f/5.2
reflector + CCD.
104 San Marcello Pistoiese. Observers L. Tesi, A. Boattini. Measurers
A. Boattini, G. Forti, L. Tesi. 0.40-m f/5 reflector + CCD.
566 Haleakala-NEAT/GEODSS. Observers E. F. Helin, S. Pravdo, K. J. Lawrence,
D. L. Rabinowitz for the NEAT team. 1.0-m f/2.2 GEODSS telescope + CCD.
673 Table Mountain Observatory, Wrightwood. Observer D. L. Rabinowitz,
G. Genevier. 0.6-m reflector + CCD.
Orbital elements:
1998 OR2 PHA 0.002D
Epoch 1998 July 26.0 TT = JDT 2451020.5 Williams
M 44.30072 (2000.0) P Q
n 0.27628137 Peri. 173.05270 -0.95660239 +0.28813088
a 2.3347209 Node 23.83293 -0.27226383 -0.83057360
e 0.5720034 Incl. 6.18047 -0.10384738 -0.47657957
P 3.57 H 16.0 G 0.15
From 15 observations 1998 July 24-26.
Ephemeris:
1998 OR2 a,e,i = 2.33, 0.57, 6 q = 0.9993
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 07 26 21 31.39 -27 05.7 1.023 2.014 162.1 8.9 18.2
1998 07 31 21 23.15 -27 31.4 1.049 2.050 166.5 6.6 18.2
1998 08 05 21 15.04 -27 50.9 1.082 2.086 168.7 5.5 18.2
1998 08 10 21 07.31 -28 03.9 1.120 2.121 167.3 6.0 18.4
1998 08 15 21 00.19 -28 10.5 1.165 2.156 163.5 7.7 18.5
1998 08 20 20 53.82 -28 11.2 1.216 2.190 158.7 9.7 18.8
1998 08 25 20 48.35 -28 06.4 1.273 2.224 153.5 11.7 19.0
1998 08 30 20 43.85 -27 56.9 1.336 2.258 148.2 13.6 19.2
1998 09 04 20 40.33 -27 43.5 1.403 2.291 143.0 15.4 19.4
1998 09 09 20 37.78 -27 26.9 1.476 2.323 137.9 16.9 19.6
1998 09 14 20 36.16 -27 07.6 1.552 2.355 132.9 18.2 19.8
1998 09 19 20 35.42 -26 46.2 1.632 2.387 128.1 19.3 19.9
1998 09 24 20 35.50 -26 23.1 1.716 2.418 123.4 20.3 20.1
1998 09 29 20 36.33 -25 58.4 1.802 2.449 118.9 21.0 20.3
1998 10 04 20 37.85 -25 32.5 1.891 2.479 114.5 21.5 20.4
1998 10 09 20 39.98 -25 05.6 1.983 2.509 110.2 21.9 20.5
1998 10 14 20 42.65 -24 37.7 2.076 2.539 106.0 22.2 20.7
1998 10 19 20 45.82 -24 08.9 2.170 2.568 101.9 22.3 20.8
1998 10 24 20 49.44 -23 39.3 2.266 2.596 97.9 22.3 20.9
1998 10 29 20 53.44 -23 08.9 2.362 2.625 94.0 22.2 21.0
1998 11 03 20 57.79 -22 37.7 2.458 2.652 90.1 22.0 21.1
1998 11 08 21 02.43 -22 05.7 2.555 2.680 86.3 21.7 21.2
1998 11 13 21 07.34 -21 33.0 2.651 2.707 82.5 21.3 21.3
1998 11 18 21 12.48 -20 59.5 2.747 2.733 78.8 20.8 21.4
1998 11 23 21 17.83 -20 25.2 2.842 2.759 75.1 20.2 21.5
1998 11 28 21 23.36 -19 50.2 2.936 2.785 71.5 19.6 21.6
1998 12 03 21 29.03 -19 14.5 3.028 2.810 67.9 19.0 21.6
1998 12 08 21 34.83 -18 38.1 3.119 2.835 64.3 18.3 21.7
1998 12 13 21 40.74 -18 01.1 3.207 2.859 60.8 17.5 21.7
1998 12 18 21 46.75 -17 23.4 3.294 2.883 57.3 16.7 21.8
1998 12 23 21 52.83 -16 45.1 3.378 2.907 53.8 15.8 21.8
1998 12 28 21 58.97 -16 06.2 3.459 2.930 50.3 15.0 21.9
1999 01 02 22 05.16 -15 26.8 3.537 2.953 46.8 14.1 21.9
1999 01 07 22 11.39 -14 47.0 3.612 2.975 43.4 13.1 21.9
1999 01 12 22 17.64 -14 06.7 3.683 2.997 40.0 12.2 21.9
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-O19
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