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IAU Minor Planet Center

Minor Planet Center

MPEC 2003-J03 : 2003 HS42

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M.P.E.C. 2003-J03                                Issued 2003 May 1, 19:12 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.

             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2003 HS42

Observations:
     K03H42S* C2003 04 29.32492 15 16 58.97 -22 36 44.3          18.9        704
     K03H42S  C2003 04 29.32526 15 16 58.69 -22 36 43.9          18.4        704
     K03H42S  C2003 04 29.33687 15 16 57.27 -22 37 19.1          19.2        704
     K03H42S  C2003 04 29.33721 15 16 57.08 -22 37 18.9          18.8        704
     K03H42S  C2003 04 29.34875 15 16 55.66 -22 37 53.8          19.1        704
     K03H42S  C2003 04 29.34909 15 16 55.42 -22 37 52.7          19.0        704
     K03H42S  C2003 04 29.36059 15 16 54.02 -22 38 27.6          18.7        704
     K03H42S  C2003 04 29.36093 15 16 53.79 -22 38 28.5          18.8        704
     K03H42S  C2003 04 30.21086 15 15 07.33 -23 19 40.2          18.4 R      651
     K03H42S  C2003 04 30.21257 15 15 07.09 -23 19 46.3          18.5 R      651
     K03H42S  C2003 04 30.21949 15 15 06.25 -23 20 07.1          18.5 R      651
     K03H42S  C2003 04 30.38264 15 14 43.17 -23 28 06.3          18.9 R      926
     K03H42S  C2003 04 30.38747 15 14 42.57 -23 28 18.7          18.7 R      926
     K03H42S  C2003 04 30.55993 15 14 21.25 -23 36 13.0          18.8 R      422
     K03H42S  C2003 04 30.56090 15 14 21.05 -23 36 15.5          18.3 R      422
     K03H42S  C2003 04 30.95769 15 13 29.20 -23 56 02.6          18.3 R      J87
     K03H42S  C2003 04 30.96315 15 13 28.32 -23 56 20.8          18.3 R      J87
     K03H42S  C2003 04 30.96831 15 13 27.75 -23 56 33.8          18.5 R      J87
     K03H42S  C2003 05 01.01798 15 13 20.50 -23 59 01.0          18.8 R      941
     K03H42S  C2003 05 01.01912 15 13 20.25 -23 59 04.8          18.8 R      941
     K03H42S  C2003 05 01.02026 15 13 20.07 -23 59 08.4          18.8 R      941
     K03H42S  C2003 05 01.02140 15 13 19.92 -23 59 11.5          18.8 R      941
     K03H42S  C2003 05 01.31087 15 12 41.52 -24 13 13.9          18.7 R      926
     K03H42S  C2003 05 01.31245 15 12 41.28 -24 13 19.3          18.6 R      926
     K03H42S  C2003 05 01.31404 15 12 41.10 -24 13 23.7          18.7 R      926
     K03H42S  C2003 05 01.31763 15 12 40.41 -24 13 35.1          18.8        704
     K03H42S  C2003 05 01.32969 15 12 38.70 -24 14 09.5          19.2        704
     K03H42S  C2003 05 01.34159 15 12 36.96 -24 14 44.9          19.1        704
     K03H42S  C2003 05 01.35357 15 12 35.18 -24 15 20.0          19.4        704
     K03H42S  C2003 05 01.36549 15 12 33.50 -24 15 54.2          19.5        704

Observer details:
422 Loomberah.  Observer G. J. Garradd.  0.45-m f/5.4 reflector + CCD.
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    Newtonian + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, S. Adams, D. Torres, T. Brothers,
    S. Partridge.  Measurers J. Stuart, R. Sayer, J. Evans, P. Hopman.  1.0-m
    f/2.15 reflector + CCD.
926 Tenagra II Observatory.  Observers P. R. Holvorcem, M. Schwartz.  0.36-m
    f/11 Schmidt-Cassegrain + CCD, 0.81-m f/7 Ritchey-Chretien + CCD.
941 Observatorio Pla D'Arguines.  Observer R. Ferrando.  0.30-m
    Schmidt-Cassegrain + CCD.
J87 La Canada.  Observer J. Lacruz.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.

Orbital elements:
2003 HS42
Epoch 2003 Apr. 11.0 TT = JDT 2452740.5                 MPC
M 341.84474              (2000.0)            P               Q
n   0.55132212     Peri.  193.87801     -0.61739202     +0.76722712
a   1.4729877      Node    38.42769     -0.69244352     -0.42521728
e   0.1254739      Incl.   16.23373     -0.37329486     -0.48015916
P   1.79           H   20.4           G   0.15
From 30 observations 2003 Apr. 29-May 1.

Ephemeris:
2003 HS42                a,e,i = 1.47, 0.13, 16                  q = 1.2882
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 05 01    15 13.38   -23 57.7    0.289    1.290   166.5    10.5    18.9
2003 05 11    14 48.52   -31 49.8    0.286    1.288   165.1    11.6    18.9
2003 05 21    14 22.06   -38 22.5    0.301    1.289   153.7    20.3    19.4
2003 05 31    14 00.28   -43 02.2    0.330    1.291   142.5    28.6    19.8
2003 06 10    13 47.74   -46 08.6    0.369    1.296   133.2    34.8    20.2
2003 06 20    13 45.61   -48 16.9    0.415    1.303   125.9    39.2    20.6
2003 06 30    13 53.04   -49 50.9    0.464    1.312   120.1    42.1    21.0
2003 07 10    14 08.79   -51 03.7    0.515    1.323   115.5    43.9    21.3
2003 07 20    14 31.42   -51 58.8    0.569    1.335   111.7    45.0    21.5
2003 07 30    14 59.68   -52 33.8    0.624    1.349   108.4    45.6    21.8
2003 08 09    15 32.42   -52 45.2    0.681    1.364   105.5    45.8    22.0

Kyle E. Smalley              (C) Copyright 2003 MPC           M.P.E.C. 2003-J03

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