MPEC 1998-J08: 1998 HH49
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M.P.E.C. 1998-J08 Issued 1998 May 4, 15:12 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 HH49
Observations:
J98H49H* C1998 04 28.13785 12 18 41.02 -06 44 21.4 20.4 V 691
J98H49H C1998 04 28.15911 12 18 35.55 -06 44 25.7 20.2 V 691
J98H49H C1998 04 28.18013 12 18 30.21 -06 44 25.1 20.3 V 691
J98H49H C1998 04 29.19373 12 14 18.40 -06 46 31.7 20.5 V 691
J98H49H C1998 04 29.20097 12 14 16.47 -06 46 32.2 20.4 V 691
J98H49H C1998 04 29.20812 12 14 14.63 -06 46 33.3 20.2 V 691
J98H49H C1998 05 03.21868 11 57 06.71 -06 56 46.4 21.0 V 691
J98H49H C1998 05 03.23409 11 57 02.58 -06 56 50.0 20.9 V 691
J98H49H C1998 05 03.24531 11 56 59.43 -06 56 51.8 21.1 V 691
Observer details:
691 Steward Observatory, Kitt Peak. Observers T. Gehrels, J. V. Scotti.
0.9-m Spacewatch telescope.
Orbital elements:
1998 HH49 PHA 0.004
Epoch 1998 Apr. 17.0 TT = JDT 2450920.5 Williams
M 310.74610 (2000.0) P Q
n 0.52201421 Peri. 287.24244 +0.65285368 +0.75532888
a 1.5276171 Node 23.80852 -0.63010085 +0.58335872
e 0.4906660 Incl. 8.13159 -0.42042240 +0.29861496
P 1.89 H 21.5 G 0.15
From 9 observations 1998 Apr. 28-May 3.
Ephemeris:
1998 HH49 a,e,i = 1.53, 0.49, 8 q = 0.7781
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 04 27 12 23.30 -06 42.0 0.300 1.278 151.2 22.3 20.5
1998 05 02 12 02.40 -06 53.0 0.280 1.239 141.5 30.4 20.5
1998 05 07 11 40.38 -07 09.3 0.264 1.200 131.5 39.0 20.6
1998 05 12 11 17.71 -07 31.7 0.251 1.161 121.5 47.9 20.6
1998 05 17 10 54.70 -08 00.1 0.241 1.122 111.5 57.0 20.7
1998 05 22 10 31.44 -08 33.5 0.232 1.083 101.6 66.3 20.8
1998 05 27 10 07.76 -09 10.1 0.225 1.044 91.7 75.8 21.0
1998 06 01 09 43.22 -09 46.4 0.219 1.007 81.9 85.7 21.2
1998 06 06 09 17.14 -10 16.6 0.214 0.970 72.0 95.9 21.5
1998 06 11 08 48.91 -10 31.6 0.210 0.935 61.9 106.6 21.9
1998 06 16 08 18.35 -10 20.3 0.209 0.902 51.9 117.6 22.5
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-J08
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