MPEC 1998-J09: 1998 JH2
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M.P.E.C. 1998-J09 Issued 1998 May 4, 15:30 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 JH2
Observations:
J98J02H* C1998 05 01.18794 12 47 34.01 +00 28 03.6 20.6 V 691
J98J02H C1998 05 01.20936 12 47 32.66 +00 28 07.7 20.5 V 691
J98J02H C1998 05 01.23040 12 47 31.40 +00 28 11.4 20.4 V 691
J98J02H C1998 05 02.27667 12 46 29.21 +00 31 26.4 19.7 V 691
J98J02H C1998 05 02.28266 12 46 28.87 +00 31 27.3 19.8 V 691
J98J02H C1998 05 02.28825 12 46 28.53 +00 31 28.4 19.8 V 691
J98J02H C1998 05 03.15304 12 45 38.57 +00 34 00.9 20.2 V 691
J98J02H C1998 05 03.17434 12 45 37.27 +00 34 04.3 20.0 V 691
J98J02H C1998 05 03.19535 12 45 36.00 +00 34 06.8 20.0 V 691
J98J02H C1998 05 04.36395 12 44 29.42 +00 37 21.2 696
J98J02H C1998 05 04.36892 12 44 29.12 +00 37 22.2 696
J98J02H C1998 05 04.37139 12 44 29.00 +00 37 22.2 20.4 R 696
Observer details:
691 Steward Observatory, Kitt Peak. Observer J. V. Scotti. 0.9-m Spacewatch
telescope.
696 Whipple Observatory, Mt. Hopkins. Observers C. W. Hergenrother,
M. J. Holman. 1.2-m reflector + CCD.
Orbital elements:
1998 JH2
Epoch 1998 Apr. 17.0 TT = JDT 2450920.5 Williams
M 259.96015 (2000.0) P Q
n 0.32073344 Peri. 291.58094 +0.94399293 +0.31656112
a 2.1136831 Node 50.08990 -0.23958729 +0.85157688
e 0.4534149 Incl. 6.97091 -0.22688163 +0.41785868
P 3.07 H 16.5 G 0.15
From 12 observations 1998 May 1-4.
Ephemeris:
1998 JH2 a,e,i = 2.11, 0.45, 7 q = 1.1553
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 04 27 12 51.92 +00 13.3 1.639 2.585 154.7 9.6 20.3
1998 05 02 12 46.76 +00 30.6 1.650 2.566 148.7 11.8 20.3
1998 05 07 12 42.12 +00 43.8 1.668 2.546 142.8 13.8 20.4
1998 05 12 12 38.07 +00 52.5 1.691 2.526 137.1 15.8 20.5
1998 05 17 12 34.68 +00 56.6 1.718 2.505 131.5 17.6 20.6
1998 05 22 12 31.99 +00 56.0 1.749 2.485 126.1 19.2 20.7
1998 05 27 12 30.02 +00 50.8 1.784 2.463 120.9 20.7 20.7
1998 06 01 12 28.79 +00 41.2 1.822 2.442 115.9 21.9 20.8
1998 06 06 12 28.29 +00 27.2 1.861 2.420 111.1 23.0 20.9
1998 06 11 12 28.48 +00 09.2 1.902 2.397 106.5 24.0 20.9
1998 06 16 12 29.35 -00 12.6 1.944 2.375 102.1 24.7 21.0
1998 06 21 12 30.86 -00 38.1 1.986 2.351 97.9 25.3 21.0
1998 06 26 12 32.98 -01 06.8 2.028 2.328 93.8 25.8 21.0
1998 07 01 12 35.69 -01 38.8 2.070 2.304 89.8 26.2 21.1
1998 07 06 12 38.94 -02 13.6 2.112 2.280 86.0 26.4 21.1
1998 07 11 12 42.71 -02 51.2 2.152 2.255 82.4 26.5 21.1
1998 07 16 12 46.97 -03 31.2 2.191 2.230 78.9 26.6 21.1
1998 07 21 12 51.69 -04 13.6 2.228 2.204 75.5 26.5 21.2
1998 07 26 12 56.86 -04 58.1 2.264 2.179 72.2 26.3 21.2
1998 07 31 13 02.46 -05 44.6 2.297 2.153 69.0 26.1 21.2
1998 08 05 13 08.47 -06 33.0 2.329 2.126 65.9 25.8 21.2
1998 08 10 13 14.86 -07 23.0 2.358 2.099 62.9 25.4 21.1
1998 08 15 13 21.64 -08 14.5 2.385 2.072 59.9 25.0 21.1
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-J09
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