MPEC 1999-N11 : 1999 HG12, 1999 HH12, 1999 HJ12
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Read MPEC 1999-N10
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M.P.E.C. 1999-N11 Issued 1999 July 7, 21:21 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 HG12, 1999 HH12, 1999 HJ12
Observations:
J99H12G*1C1999 04 18.20550 13 29 03.82 -09 12 07.2 23.9 R 695
J99H12G 1C1999 04 18.27939 13 29 03.46 -09 12 04.7 695
J99H12G 1C1999 04 18.38513 13 29 02.99 -09 12 02.7 695
J99H12G 1C1999 06 05.88567 13 26 02.30 -08 54 34.4 23.2 R 950
J99H12G 1C1999 06 05.94422 13 26 02.12 -08 54 33.8 23.4 R 950
J99H12G 1C1999 06 06.00363 13 26 01.99 -08 54 33.0 23.2 R 950
J99H12H*1C1999 04 18.21072 13 32 06.14 -10 43 43.0 23.9 R 695
J99H12H 1C1999 04 18.28462 13 32 05.73 -10 43 40.3 695
J99H12H 1C1999 04 18.39041 13 32 05.35 -10 43 37.8 695
J99H12H 1C1999 06 05.89245 13 29 06.30 -10 25 35.1 22.8 R 950
J99H12H 1C1999 06 05.95103 13 29 06.18 -10 25 34.3 950
J99H12H 1C1999 06 06.01039 13 29 06.00 -10 25 32.8 950
J99H12J*1C1999 04 18.34230 14 36 05.79 -10 25 14.5 23.6 R 695
J99H12J 1C1999 04 18.42194 14 36 05.39 -10 25 13.4 695
J99H12J 1C1999 04 18.45872 14 36 05.28 -10 25 12.1 695
J99H12J 1C1999 06 05.93830 14 32 40.24 -10 09 47.9 23.0 R 950
J99H12J 1C1999 06 05.98205 14 32 40.07 -10 09 47.1 22.9 R 950
J99H12J 1C1999 06 06.03698 14 32 39.87 -10 09 46.8 950
Observer details:
695 Kitt Peak. Observers R. L. Millis, J. L. Elliot, M. Holman, K. A.
Falniski. Measurers M. W. Buie, R. L. Millis, J. L. Elliot. 4-m
telescope + CCD.
950 La Palma. Observers M. J. Holman, T. Grav, N. Haug. Measurers
T. Grav, C. Ernst, M. J. Holman. 2.6-m Nordic Optical Telescope + CCD.
Orbital elements:
Object H G Epoch M Peri. Node Incl. e a Arc C
J99H12G 7.4 0.15 J9952 0.000 173.333 30.805 0.986 0.0 42.98861 49EM
J99H12H 7.3 0.15 J9952 0.000 308.747 256.609 1.286 0.0 43.99148 49EM
J99H12J 7.1 0.15 J9952 0.000 97.229 122.476 4.543 0.0 44.03157 49EM
Ephemerides:
1999 HG12 a,e,i = 42.99, 0.00, 1
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 07 01 13 25.41 -08 51.0 42.727 42.989 104.3 1.3 23.9
1999 07 11 13 25.40 -08 51.0 42.893 42.989 94.7 1.4 23.9
1999 07 21 13 25.53 -08 51.9 43.061 42.989 85.2 1.3 23.9
1999 07 31 13 25.81 -08 53.6 43.227 42.989 75.8 1.3 23.9
1999 08 10 13 26.22 -08 56.1 43.386 42.989 66.3 1.2 23.9
1999 08 20 13 26.75 -08 59.3 43.534 42.989 56.8 1.1 23.9
1999 08 30 13 27.41 -09 03.2 43.666 42.989 47.4 1.0 23.9
1999 09 09 13 28.16 -09 07.7 43.779 42.989 37.9 0.8 23.9
1999 HH12 a,e,i = 43.99, 0.00, 1
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 07 01 13 28.46 -10 21.2 43.708 43.991 105.5 1.3 23.9
1999 07 11 13 28.44 -10 20.8 43.874 43.991 96.0 1.3 23.9
1999 07 21 13 28.56 -10 21.2 44.042 43.991 86.5 1.3 23.9
1999 07 31 13 28.82 -10 22.4 44.209 43.991 77.0 1.3 23.9
1999 08 10 13 29.21 -10 24.5 44.369 43.991 67.5 1.2 23.9
1999 08 20 13 29.73 -10 27.2 44.519 43.991 58.1 1.1 23.9
1999 08 30 13 30.36 -10 30.7 44.653 43.991 48.6 1.0 23.9
1999 09 09 13 31.09 -10 34.8 44.769 43.991 39.1 0.8 23.9
1999 HJ12 a,e,i = 44.03, 0.00, 5
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 07 01 14 31.51 -10 06.2 43.516 44.032 119.9 1.1 23.7
1999 07 11 14 31.26 -10 06.0 43.668 44.032 110.4 1.2 23.7
1999 07 21 14 31.14 -10 06.5 43.829 44.032 100.8 1.3 23.7
1999 07 31 14 31.16 -10 07.8 43.997 44.032 91.3 1.3 23.7
1999 08 10 14 31.33 -10 09.7 44.164 44.032 81.8 1.3 23.7
1999 08 20 14 31.63 -10 12.2 44.328 44.032 72.3 1.3 23.7
1999 08 30 14 32.07 -10 15.4 44.483 44.032 62.8 1.2 23.7
1999 09 09 14 32.64 -10 19.1 44.626 44.032 53.3 1.1 23.7
1999 09 19 14 33.33 -10 23.2 44.751 44.032 43.8 0.9 23.7
1999 09 29 14 34.11 -10 27.7 44.855 44.032 34.3 0.7 23.7
Brian G. Marsden (C) Copyright 1999 MPC M.P.E.C. 1999-N11
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