MPEC 1998-O16 : 1998 OH
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M.P.E.C. 1998-O16 Issued 1998 July 25, 14:21 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 OH
Observations:
J98O00H* C1998 07 19.52893 17 51 35.62 +33 09 03.3 18.2 V 566
J98O00H C1998 07 19.54982 17 51 35.12 +33 08 36.1 18.0 V 566
J98O00H C1998 07 19.57094 17 51 34.60 +33 08 08.3 18.1 V 566
J98O00H C1998 07 20.39318 17 51 18.38 +32 50 42.0 18.4 V 566
J98O00H C1998 07 20.41388 17 51 17.90 +32 50 14.8 17.8 V 566
J98O00H C1998 07 20.43477 17 51 17.42 +32 49 47.6 18.5 V 566
J98O00H C1998 07 24.32691 17 50 24.10 +31 24 56.4 18.1 V 566
J98O00H C1998 07 24.34832 17 50 23.79 +31 24 27.9 18.3 V 566
J98O00H C1998 07 24.36978 17 50 23.52 +31 23 59.6 18.4 V 566
J98O00H C1998 07 24.95770 17 50 18.86 +31 10 48.8 557
J98O00H C1998 07 24.96039 17 50 18.86 +31 10 45.5 17.8 V 557
J98O00H C1998 07 25.23112 17 50 17.42 +31 04 49.1 17.3 R 673
J98O00H C1998 07 25.23453 17 50 17.39 +31 04 44.4 673
Observer details:
557 Ondrejov. Observer P. Pravec. 0.65-m f/3.6 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. Observers D. L. Rabinowitz,
G. Genevier. 0.6-m reflector + CCD.
Orbital elements:
1998 OH PHA 0.023A
Epoch 1998 July 6.0 TT = JDT 2451000.5 Williams
M 53.18594 (2000.0) P Q
n 0.50971730 Peri. 321.98457 -0.96276834 -0.00370671
a 1.5520884 Node 220.46566 +0.02374868 -0.99719970
e 0.4096249 Incl. 24.61354 -0.26928260 -0.07469283
P 1.93 H 16.5 G 0.15
From 13 observations 1998 July 19-25.
Ephemeris:
1998 OH a,e,i = 1.55, 0.41, 25 q = 0.9163
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 07 16 17 53.19 +34 22.3 0.666 1.458 118.6 37.7 18.0
1998 07 26 17 50.23 +30 47.7 0.746 1.517 118.1 36.2 18.2
1998 08 05 17 51.62 +27 00.0 0.831 1.574 116.6 35.2 18.5
1998 08 15 17 56.62 +23 12.7 0.924 1.628 114.3 34.5 18.8
1998 08 25 18 04.58 +19 34.5 1.024 1.681 111.3 34.1 19.1
1998 09 04 18 14.99 +16 11.9 1.131 1.730 107.8 33.7 19.4
1998 09 14 18 27.33 +13 09.1 1.245 1.778 103.8 33.3 19.6
1998 09 24 18 41.24 +10 28.1 1.365 1.823 99.5 32.9 19.9
1998 10 04 18 56.44 +08 09.9 1.491 1.865 94.9 32.3 20.1
1998 10 14 19 12.62 +06 14.7 1.620 1.905 90.1 31.6 20.3
1998 10 24 19 29.59 +04 41.8 1.753 1.942 85.2 30.7 20.5
1998 11 03 19 47.18 +03 30.5 1.887 1.976 80.1 29.6 20.6
1998 11 13 20 05.20 +02 39.4 2.022 2.008 75.0 28.4 20.8
1998 11 23 20 23.54 +02 07.2 2.155 2.037 69.8 27.1 20.9
1998 12 03 20 42.10 +01 52.5 2.286 2.064 64.5 25.6 21.0
1998 12 13 21 00.76 +01 53.6 2.412 2.088 59.3 23.9 21.1
1998 12 23 21 19.49 +02 09.0 2.532 2.109 53.9 22.2 21.2
1999 01 02 21 38.21 +02 37.3 2.646 2.128 48.6 20.3 21.3
1999 01 12 21 56.88 +03 16.7 2.751 2.144 43.3 18.3 21.3
1999 01 22 22 15.49 +04 05.9 2.846 2.158 38.0 16.3 21.3
1999 02 01 22 34.03 +05 03.3 2.930 2.169 32.8 14.3 21.3
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-O16
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