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    • MPEC 2001-C18 : 2001 CB21

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    M.P.E.C. 2001-C18                                Issued 2001 Feb.  9, 18:28 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.

             Prepared using the Tamkin Foundation Computer Network

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

                                   2001 CB21

Observations:
     K01C21B* C2001 02 02.47394 14 39 54.75 -05 18 27.0          18.4        704
     K01C21B  C2001 02 02.50333 14 40 05.18 -05 19 42.8          19.1        704
     K01C21B  C2001 02 02.51791 14 40 10.20 -05 20 21.5          18.8        704
     K01C21B  C2001 02 02.53250 14 40 15.47 -05 21 01.1          18.8        704
     K01C21B  C2001 02 03.47303 14 46 01.53 -06 02 46.6          17.9        704
     K01C21B  C2001 02 03.48793 14 46 06.93 -06 03 27.0          18.4        704
     K01C21B  C2001 02 03.50311 14 46 12.50 -06 04 07.5          17.7        704
     K01C21B  C2001 02 03.51808 14 46 17.87 -06 04 48.1          18.3        704
     K01C21B  C2001 02 03.60938 14 46 52.99 -06 08 20.9          17.4 R      474
     K01C21B EC2001 02 03.61134 14 46 53.62 -06 08 25.6                      474
     K01C21B  C2001 02 04.43683 14 52 05.61 -06 46 33.9                      918
     K01C21B  C2001 02 04.44043 14 52 06.97 -06 46 44.4                      918
     K01C21B  C2001 02 04.44339 14 52 08.15 -06 46 53.3                      918
     K01C21B  C2001 02 04.44975 14 52 09.98 -06 47 14.5                      912
     K01C21B  C2001 02 05.47231 14 58 48.32 -07 34 33.2          18.8        704
     K01C21B  C2001 02 05.48739 14 58 53.99 -07 35 14.7          19.2        704
     K01C21B  C2001 02 05.50225 14 58 59.86 -07 35 57.3          18.4        704
     K01C21B  C2001 02 05.51715 14 59 05.58 -07 36 38.9          19.0        704
     K01C21B  C2001 02 06.63206 15 06 34.29 -08 28 52.5          17.5 R      474
     K01C21B  C2001 02 06.63367 15 06 35.14 -08 28 56.4                      474
     K01C21B  C2001 02 06.63668 15 06 36.21 -08 29 06.4          17.5 R      474

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observer A. C. Gilmore.
    1.0-m f/7.7 reflector + 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.
912 Carbuncle Hill Observatory, Greene.  Observer D. P. Pray.  0.30-m f/3.3
    Schmidt-Cassegrain + CCD.
918 Badlands Observatory, Quinn.  Observer R. Dyvig.  0.66-m f/4.8 reflector
    + CCD.

Orbital elements:
2001 CB21                                                            PHA 0.030
Epoch 2001 Jan. 31.0 TT = JDT 2451940.5                 Spahr
M 280.34216              (2000.0)            P               Q
n   0.94807701     Peri.  272.19333     -0.06874849     +0.99752633
a   1.0262196      Node   353.80715     -0.85278414     -0.06638510
e   0.3291118      Incl.    7.80947     -0.51771890     -0.02311346
P   1.04           H   17.8           G   0.15
From 21 observations 2001 Feb. 2-6.

Ephemeris:
2001 CB21                a,e,i = 1.03, 0.33, 8                   q = 0.6885
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2001 01 31    14 25.50   -03 32.9    0.342    1.075    95.8    65.7    17.9
2001 02 10    15 30.61   -11 14.5    0.293    1.021    88.2    75.1    17.8
2001 02 20    16 55.44   -19 27.9    0.272    0.963    76.6    87.4    18.0
2001 03 02    18 31.97   -25 04.9    0.287    0.904    64.2    99.1    18.5
2001 03 12    20 00.45   -26 17.3    0.336    0.846    54.8   106.2    19.0
2001 03 22    21 10.27   -24 18.9    0.413    0.791    49.1   107.6    19.4
2001 04 01    22 04.23   -20 43.9    0.509    0.743    46.1   104.3    19.5

2001 10 18    08 41.88   +27 58.7    1.128    1.359    79.3    46.1    20.5
2001 10 28    09 06.27   +27 13.8    1.049    1.364    83.7    46.4    20.3
2001 11 07    09 29.80   +26 25.0    0.965    1.363    88.3    46.6    20.2
2001 11 17    09 52.46   +25 34.9    0.878    1.357    93.1    46.7    19.9
2001 11 27    10 14.24   +24 46.6    0.788    1.346    98.1    46.5    19.7
2001 12 07    10 35.18   +24 02.8    0.697    1.330   103.2    46.2    19.4
2001 12 17    10 55.30   +23 26.6    0.606    1.308   108.4    45.5    19.0
2001 12 27    11 14.59   +23 01.3    0.516    1.282   113.8    44.6    18.6
2002 01 06    11 33.27   +22 49.6    0.429    1.250   119.2    43.4    18.1
2002 01 16    11 51.58   +22 55.5    0.345    1.213   124.5    42.0    17.5
2002 01 26    12 10.40   +23 22.3    0.266    1.171   129.3    40.6    16.9

Timothy B. Spahr             (C) Copyright 2001 MPC           M.P.E.C. 2001-C18

    Read MPEC 2001-C17 Read MPEC 2001-C19

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