MPEC 1999-T23: 1999 OC4, 1999 OD4
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M.P.E.C. 1999-T23 Issued 1999 Oct. 6, 19:28 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
1999 OC4, 1999 OD4
Observations:
J99O04C*6C1999 07 18.53292 21 15 20.02 -17 09 51.6 23.7 R 568
J99O04C 6C1999 07 18.56035 21 15 19.87 -17 09 52.3 568
J99O04C 6C1999 07 18.58696 21 15 19.76 -17 09 52.8 568
J99O04C 6C1999 07 20.47047 21 15 11.18 -17 10 33.1 24.0 R 568
J99O04C 6C1999 07 20.49830 21 15 11.03 -17 10 33.4 568
J99O04C 6C1999 07 20.52528 21 15 10.91 -17 10 34.1 568
J99O04C C1999 08 07.17330 21 13 46.22 -17 16 59.5 807
J99O04C C1999 08 07.35260 21 13 45.29 -17 17 02.9 807
J99O04D*6C1999 07 19.41907 20 25 53.00 -18 30 47.9 23.4 R 568
J99O04D 6C1999 07 19.44678 20 25 52.85 -18 30 48.3 568
J99O04D 6C1999 07 19.47521 20 25 52.71 -18 30 48.9 568
J99O04D C1999 08 06.16666 20 24 28.84 -18 34 45.3 807
J99O04D C1999 08 06.17234 20 24 28.81 -18 34 44.7 807
J99O04D C1999 08 06.17802 20 24 28.79 -18 34 45.1 807
J99O04D C1999 08 06.26267 20 24 28.37 -18 34 46.5 807
J99O04D C1999 08 06.26823 20 24 28.33 -18 34 46.8 807
J99O04D C1999 08 06.27391 20 24 28.32 -18 34 46.5 807
J99O04D C1999 08 07.16469 20 24 24.16 -18 34 58.6 807
J99O04D C1999 08 07.23817 20 24 23.83 -18 34 59.2 807
J99O04D C1999 08 07.24393 20 24 23.78 -18 34 59.7 807
J99O04D C1999 08 07.24962 20 24 23.74 -18 34 59.4 807
Observer details:
568 Mauna Kea. Observers J. J. Kavelaars, B. Gladman, M. Holman, J.-M. Petit,
H. Scholl. 3.5-m Canada-France-Hawaii Telescope + CCD.
807 Cerro Tololo. Observer J. W. Parker. 4-m Blanco reflector + CCD.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
J99O04C 8.1 0.15 J997L 0.010 267.309 48.196 1.153 0.04382 42.53073 20EM
J99O04D 7.4 0.15 J997L 0.000 2.875 301.339 13.550 0.0 44.10022 19EM
Ephemerides:
1999 OC4 a,e,i = 42.53, 0.04, 1 q = 40.667
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 09 29 21 10.07 -17 32.7 40.026 40.667 129.3 1.1 24.3
1999 10 09 21 09.68 -17 34.2 40.168 40.667 119.3 1.2 24.3
1999 10 19 21 09.44 -17 34.9 40.326 40.667 109.4 1.3 24.4
1999 10 29 21 09.36 -17 35.0 40.493 40.667 99.4 1.4 24.4
1999 11 08 21 09.45 -17 34.3 40.665 40.667 89.4 1.4 24.4
1999 11 18 21 09.71 -17 32.8 40.837 40.667 79.4 1.4 24.4
1999 11 28 21 10.13 -17 30.7 41.003 40.667 69.4 1.3 24.4
1999 12 08 21 10.71 -17 27.9 41.159 40.667 59.4 1.2 24.4
1999 12 18 21 11.42 -17 24.5 41.300 40.667 49.4 1.1 24.4
1999 12 28 21 12.27 -17 20.5 41.421 40.667 39.5 0.9 24.4
1999 OD4 a,e,i = 44.10, 0.00, 14
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 09 29 20 21.32 -18 43.4 43.624 44.100 117.8 1.2 24.0
1999 10 09 20 21.10 -18 43.8 43.783 44.100 107.9 1.2 24.0
1999 10 19 20 21.04 -18 43.7 43.951 44.100 98.0 1.3 24.0
1999 10 29 20 21.14 -18 43.0 44.123 44.100 88.0 1.3 24.0
1999 11 08 20 21.39 -18 41.9 44.294 44.100 78.1 1.3 24.0
1999 11 18 20 21.80 -18 40.2 44.459 44.100 68.1 1.2 24.0
1999 11 28 20 22.35 -18 38.0 44.613 44.100 58.2 1.1 24.0
1999 12 08 20 23.03 -18 35.4 44.751 44.100 48.2 1.0 24.0
1999 12 18 20 23.83 -18 32.3 44.869 44.100 38.2 0.8 24.0
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-T23
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