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IAU Minor Planet Center

Minor Planet Center

MPEC 2001-W61: 2001 WH1

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M.P.E.C. 2001-W61                                Issued 2001 Nov. 26, 15:10 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

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

                                   2001 WH1

Observations:
     K01W01H* C2001 11 17.29626 05 01 37.85 +14 59 32.4          19.3        704
     K01W01H  C2001 11 17.31086 05 01 36.69 +14 59 43.4          20.0        704
     K01W01H  C2001 11 17.32626 05 01 35.46 +14 59 55.1          19.9        704
     K01W01H  C2001 11 17.34091 05 01 34.31 +15 00 06.9          19.9        704
     K01W01H  C2001 11 17.35584 05 01 33.13 +15 00 17.2          19.7        704
     K01W01H  C2001 11 18.36185 05 00 16.61 +15 13 40.6          19.5        704
     K01W01H  C2001 11 18.37670 05 00 15.31 +15 13 53.5          19.6        704
     K01W01H  C2001 11 18.39182 05 00 14.01 +15 14 05.4          19.5        704
     K01W01H  C2001 11 18.40727 05 00 12.59 +15 14 17.8          19.9        704
     K01W01H  C2001 11 24.31040 04 48 38.65 +17 07 25.5          19.0 V      291
     K01W01H  C2001 11 24.33459 04 48 34.36 +17 08 03.2          18.9 V      291
     K01W01H  C2001 11 24.35723 04 48 30.29 +17 08 39.0          19.0 V      291
     K01W01H  C2001 11 25.33285 04 45 38.44 +17 35 19.1          17.5 R      711
     K01W01H  C2001 11 25.33858 04 45 37.29 +17 35 29.0          17.5 R      711
     K01W01H  C2001 11 25.34425 04 45 36.18 +17 35 38.7          17.6 R      711
     K01W01H  C2001 11 25.35384 04 45 34.58 +17 35 53.9          17.9 V      691
     K01W01H  C2001 11 25.35816 04 45 33.66 +17 36 01.7          19.7 V      691
     K01W01H  C2001 11 25.36406 04 45 32.42 +17 36 12.8          18.3 V      691
     K01W01H  C2001 11 26.00124 04 43 27.54 +17 55 12.9                      118
     K01W01H  C2001 11 26.00444 04 43 26.82 +17 55 19.4                      118
     K01W01H  C2001 11 26.00788 04 43 26.05 +17 55 25.4                      118
     K01W01H  C2001 11 26.01306 04 43 24.94 +17 55 35.1          17.5 R      118
     K01W01H  C2001 11 26.27803 04 42 30.97 +18 03 58.9                      658
     K01W01H  C2001 11 26.27995 04 42 30.61 +18 04 02.6                      658
     K01W01H  C2001 11 26.28300 04 42 29.91 +18 04 08.5                      658
     K01W01H  C2001 11 26.30431 04 42 24.57 +18 05 00.8          17.4 R      711
     K01W01H  C2001 11 26.30930 04 42 23.46 +18 05 10.4          17.6 R      711

Observer details:
118 Modra.  Observers A. Galad, S. Gajdos.  0.6-m f/5.5 reflector + CCD.
291 LPL/Spacewatch II.  Observer J. A. Larsen.  1.8-m Spacewatch telescope.
658 National Research Council of Canada.  Observer D. D. Balam.  1.82-m
    Plaskett reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer M. T. Read.  0.9-m Spacewatch
    telescope.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, S. Adams, J. Piscitelli.  Measurers
    J. Stuart, R. Sayer, J. B. Evans, H. Viggh.  1.0-m f/2.15 reflector + CCD.
711 McDonald Observatory.  Observer J. G. Ries.  0.76-m reflector + CCD.

Orbital elements:
2001 WH1                                                             PHA 0.043
Epoch 2001 Nov. 7.0 TT = JDT 2452220.5                  MPC
M 341.52156              (2000.0)            P               Q
n   0.23314891     Peri.  107.16725     -0.96299114     -0.08742872
a   2.6144507      Node    68.42173     -0.04599123     -0.87875750
e   0.8135097      Incl.   15.91283     +0.26558024     -0.46919237
P   4.23           H   20.3           G   0.15
From 27 observations 2001 Nov. 17-26.

Ephemeris:
2001 WH1                 a,e,i = 2.61, 0.81, 16                  q = 0.4876
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2001 11 17    05 01.97   +14 56.0    0.389    1.356   157.5    16.2    19.8
2001 11 22    04 54.16   +16 14.9    0.309    1.288   164.3    12.0    19.0
2001 11 27    04 39.83   +18 28.6    0.233    1.219   172.8     5.8    18.0
2001 12 02    04 10.83   +22 34.4    0.163    1.148   174.9     4.4    17.0
2001 12 07    02 56.56   +30 39.7    0.101    1.076   152.5    25.0    16.6
2001 12 12    23 15.40   +35 40.1    0.070    1.003   103.0    73.1    17.1
2001 12 17    20 04.36   +17 35.3    0.101    0.929    54.2   120.7    20.1

Brian G. Marsden             (C) Copyright 2001 MPC           M.P.E.C. 2001-W61

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