MPEC 1999-J45 : 1998 HO151
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M.P.E.C. 1999-J45 Issued 1999 May 15, 14:31 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
1998 HO151
Revision to MPEC 1999-J25
Observations:
J98HF1O 1C1999 03 10.58059 12 38 37.36 +12 06 50.2 24.4 R 568
J98HF1O 1C1999 03 10.60152 12 38 37.27 +12 06 50.9 24.4 R 568
J98HF1O 1C1999 05 07.41074 12 34 43.69 +12 29 01.6 24.4 R 568
J98HF1O 1C1999 05 07.46740 12 34 43.51 +12 29 02.0 24.4 R 568
Observer details:
568 Mauna Kea. Observers R. Wainscoat, J. Kormendy, D. Jewitt, J. Luu,
C. Trujillo, D. Tholen. Measurer C. Trujillo. 3.6-m Canada-France-Hawaii
reflector + CCD, 2.2-m University of Hawaii reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees) and reference
990310 568 0.09- 0.02+ 990507 568 0.08- 0.01+ E1999-J25
Orbital elements:
1998 HO151
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Marsden
M 208.57191 (2000.0) P Q
n 0.00372433 Peri. 218.20041 +0.92730597 +0.28703939
a 41.2195949 Node 123.45051 -0.23124574 +0.94400733
e 0.1025066 Incl. 16.73373 -0.29432811 +0.16266086
P 265 H 8.2 G 0.15 U 7
Residuals in seconds of arc
980422 568 0.0 0.1- 980501 568 0.2+ 0.2+ 990310 568 0.3- 0.5-
980422 568 0.1- 0.2- 980522 568 0.2+ 0.3+ 990507 568 0.1+ 0.5+
980422 568 0.1- 0.0 980522 568 0.3- 0.1- 990507 568 0.2+ 0.4+
980501 568 0.1+ 0.0 980522 568 0.1- 0.1+
980501 568 0.1+ 0.1+ 990310 568 0.2- 0.5-
Ephemeris:
1998 HO151 a,e,i = 41.22, 0.10, 17 q = 36.994
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 05 12 12 34.49 +12 29.5 44.367 45.027 130.3 1.0 24.9
1999 05 22 12 34.03 +12 29.9 44.496 45.026 121.1 1.1 24.9
1999 06 01 12 33.69 +12 29.2 44.639 45.025 111.8 1.2 24.9
1999 06 11 12 33.47 +12 27.5 44.793 45.024 102.5 1.3 24.9
1999 06 21 12 33.39 +12 24.8 44.953 45.023 93.3 1.3 24.9
1999 07 01 12 33.44 +12 21.2 45.115 45.022 84.1 1.3 24.9
1999 07 11 12 33.62 +12 16.8 45.274 45.021 75.0 1.2 24.9
1999 07 21 12 33.94 +12 11.7 45.425 45.020 65.9 1.2 24.9
1999 07 31 12 34.38 +12 06.1 45.566 45.018 56.9 1.1 24.9
1999 08 10 12 34.94 +12 00.0 45.690 45.017 47.9 1.0 24.9
1999 08 20 12 35.60 +11 53.7 45.796 45.016 39.2 0.8 24.9
1999 08 30 12 36.35 +11 47.3 45.881 45.015 30.7 0.7 24.9
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-J45
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