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Minor Planet Center

MPEC 2001-H13 : 2001 HC

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M.P.E.C. 2001-H13                                Issued 2001 Apr. 17, 16:03 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

                                    2001 HC

Observations:
     K01H00C* C2001 04 16.33536 15 35 11.20 -11 08 11.7          16.5        704
     K01H00C  C2001 04 16.34901 15 35 01.37 -11 09 06.7          18.7        704
     K01H00C  C2001 04 16.36262 15 34 51.61 -11 09 59.4          16.8        704
     K01H00C  C2001 04 16.37622 15 34 41.82 -11 10 52.3          16.9        704
     K01H00C  C2001 04 16.38985 15 34 32.03 -11 11 45.5          16.6        704
     K01H00C  C2001 04 17.02047 15 27 11.06 -11 52 27.9          15.8        615
     K01H00C  C2001 04 17.02159 15 27 10.26 -11 52 34.9          15.5        615
     K01H00C  C2001 04 17.02238 15 27 09.70 -11 52 37.9          15.8        615
     K01H00C  C2001 04 17.02313 15 27 09.17 -11 52 40.8          15.8        615
     K01H00C  C2001 04 17.02388 15 27 08.63 -11 52 40.6          15.8        615
     K01H00C  C2001 04 17.23748 15 24 40.73 -12 06 03.1                      854
     K01H00C  C2001 04 17.23910 15 24 39.59 -12 06 08.3          16.1        854
     K01H00C  C2001 04 17.26872 15 24 18.30 -12 08 03.1                      854
     K01H00C  C2001 04 17.27033 15 24 17.30 -12 08 09.1          16.0        854
     K01H00C  C2001 04 17.31777 15 23 42.44 -12 11 12.6          15.3 R      649
     K01H00C  C2001 04 17.31915 15 23 41.44 -12 11 17.9          15.1 R      649
     K01H00C  C2001 04 17.32054 15 23 40.44 -12 11 22.9          15.1 R      649
     K01H00C  C2001 04 17.32384 15 23 38.08 -12 11 35.3          15.2 R      649
     K01H00C  C2001 04 17.32608 15 23 36.47 -12 11 43.8          15.1 R      649
     K01H00C  C2001 04 17.40492 15 22 40.59 -12 16 36.8          17.0 R      919
     K01H00C  C2001 04 17.40608 15 22 39.77 -12 16 41.3          17.1 R      919
     K01H00C  C2001 04 17.40860 15 22 37.91 -12 16 51.2          17.1 R      919

Observer details:
615 St. Veran.  Observers C. Demeautis, D. Matter, M. Hernandez, J.-C.
    Le Floch.  0.62-m f/2.8 reflector + CCD.
649 Powell Observatory, Louisburg.  Observer K. Smalley.  0.75-m Newtonian
    + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, S. Adams.  Measurers J. Stuart,
    R. Sayer, J. B. Evans, H. Viggh.  1.0-m f/2.15 reflector + CCD.
854 Sabino Canyon Observatory, Tucson.  Observer J. E. McGaha.  0.30-m f/6.1
    Schmidt-Cassegrain + CCD.
919 Desert Beaver Observatory.  Observer K. W. Yeung.  0.45-m reflector + CCD.

Orbital elements:
2001 HC
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5                  Spahr
M  86.17713              (2000.0)            P               Q
n   1.19640826     Peri.   28.38099     +0.50739486     -0.83055401
a   0.8787860      Node    32.73312     +0.68831316     +0.23031317
e   0.5127458      Incl.   25.12987     +0.51843558     +0.50708567
P   0.82           H   18.2           G   0.15
From 22 observations 2001 Apr. 16-17.

Ephemeris:
2001 HC                  a,e,i = 0.88, 0.51, 25                  q = 0.4282
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2001 04 11    16 34.91   -05 03.5    0.173    1.123   131.1    42.3    16.3
2001 04 21    14 41.45   -15 39.1    0.178    1.180   168.1    10.1    15.5
2001 05 01    13 10.34   -20 49.7    0.232    1.227   159.5    16.7    16.4
2001 05 11    12 20.97   -22 17.4    0.313    1.265   139.8    31.0    17.5
2001 05 21    11 58.21   -22 47.3    0.407    1.295   126.1    39.2    18.4
2001 05 31    11 49.99   -23 14.1    0.507    1.315   115.6    44.0    19.0
2001 06 10    11 50.03   -23 51.3    0.606    1.326   107.1    47.0    19.5
2001 06 20    11 55.18   -24 40.5    0.703    1.329    99.7    48.9    19.9
2001 06 30    12 03.84   -25 41.6    0.794    1.324    93.1    50.1    20.2
2001 07 10    12 15.05   -26 53.3    0.877    1.309    87.1    50.8    20.4
2001 07 20    12 28.31   -28 13.9    0.951    1.286    81.6    51.4    20.5
2001 07 30    12 43.39   -29 42.2    1.013    1.254    76.4    51.9    20.6
2001 08 09    13 00.15   -31 16.3    1.060    1.213    71.6    52.4    20.7
2001 08 19    13 18.60   -32 53.8    1.092    1.163    67.0    53.2    20.7
2001 08 29    13 38.85   -34 32.2    1.106    1.103    62.6    54.4    20.6

Timothy B. Spahr             (C) Copyright 2001 MPC           M.P.E.C. 2001-H13

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