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M.P.E.C. 2000-L61 Issued 2000 June 15, 20:10 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.
Prepared using the Tamkin Foundation Computer Network
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1999 HJ12
Revision to MPEC 1999-N11
Observations:
J99H12J 3C2000 06 07.31621 14 37 16.57 -10 32 57.8 568
J99H12J 3C2000 06 07.40621 14 37 16.25 -10 32 56.6 568
J99H12J 3C2000 06 08.38395 14 37 12.85 -10 32 44.5 568
Observer details:
568 Mauna Kea. Observers C. Veillet, A. Doressoundiram. Measurer C. Veillet.
Canada-France-Hawaii 3.6-m reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
000607 568 92.6- 32.5+ 000608 568 92.8- 32.5+ MPC 39550
Orbital elements:
1999 HJ12
Epoch 2000 Sept. 13.0 TT = JDT 2451800.5 Marsden
M 167.52339 (2000.0) P Q
n 0.00352266 Peri. 290.58045 +0.59892648 -0.79800844
a 42.7781937 Node 122.44863 +0.76106769 +0.54124874
e 0.0337592 Incl. 4.54397 +0.24912456 +0.26501383
P 280 H 7.3 G 0.15
Residuals in seconds of arc
990418 695 0.2+ 0.6+ 990523 697 0.7+ 0.6- 990605 950 0.4- 0.2+
990418 695 0.5- 0.1- 990523 697 0.0 0.3- 990606 950 0.4- 0.2-
990418 695 0.3+ 0.4+ 990524 697 0.1+ 0.2- 000607 568 0.0 0.0
990521 697 0.1- 0.1- 990524 697 0.0 0.1- 000607 568 0.1+ 0.1+
990521 697 0.2+ 0.1+ 990605 950 0.2- 0.0 000608 568 0.1- 0.0
Ephemeris:
1999 HJ12 a,e,i = 42.78, 0.03, 5 q = 41.334
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2000 06 15 14 36.86 -10 31.5 43.455 44.189 135.8 0.9 23.9
2000 06 25 14 36.40 -10 30.2 43.581 44.189 126.2 1.1 23.9
2000 07 05 14 36.06 -10 29.5 43.725 44.189 116.6 1.2 23.9
2000 07 15 14 35.85 -10 29.6 43.881 44.189 107.0 1.3 23.9
2000 07 25 14 35.78 -10 30.3 44.045 44.190 97.5 1.3 23.9
2000 08 04 14 35.85 -10 31.8 44.213 44.190 88.0 1.3 23.9
2000 08 14 14 36.06 -10 33.9 44.380 44.190 78.5 1.3 23.9
2000 08 24 14 36.41 -10 36.6 44.542 44.190 69.0 1.2 23.9
2000 09 03 14 36.90 -10 39.9 44.693 44.190 59.5 1.1 23.9
2000 09 13 14 37.51 -10 43.7 44.830 44.190 50.0 1.0 23.9
2000 09 23 14 38.22 -10 47.9 44.949 44.191 40.5 0.8 23.9
2000 10 03 14 39.03 -10 52.4 45.046 44.191 31.0 0.7 23.9
Brian G. Marsden (C) Copyright 2000 MPC M.P.E.C. 2000-L61
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