• MPC Preparation (Info)

    • MPEC 2001-Y23 : 2001 YF1

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    M.P.E.C. 2001-Y23                                Issued 2001 Dec. 19, 23:30 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 YF1

Observations:
     K01Y01F* C2001 12 17.37686 07 08 15.58 +29 02 55.3          19.4        704
     K01Y01F  C2001 12 17.39311 07 08 13.63 +29 02 37.1          19.6        704
     K01Y01F  C2001 12 17.40827 07 08 11.82 +29 02 20.7          19.8        704
     K01Y01F  C2001 12 18.29947 07 06 28.59 +28 45 50.9          18.9        704
     K01Y01F  C2001 12 18.31470 07 06 26.67 +28 45 35.0          20.1        704
     K01Y01F  C2001 12 18.32992 07 06 24.76 +28 45 16.9          19.4        704
     K01Y01F  C2001 12 18.34516 07 06 22.85 +28 45 00.0          19.1        704
     K01Y01F  C2001 12 18.36038 07 06 20.97 +28 44 42.7          19.0        704
     K01Y01F  C2001 12 18.42372 07 06 12.89 +28 43 27.8          19.3 R      649
     K01Y01F  C2001 12 18.42870 07 06 12.36 +28 43 22.2          19.7 R      649
     K01Y01F  C2001 12 18.43420 07 06 11.65 +28 43 15.8          19.4 R      649
     K01Y01F  C2001 12 19.45868 07 04 07.24 +28 23 31.5          19.0        704
     K01Y01F  C2001 12 19.47382 07 04 05.30 +28 23 13.4          19.5        704
     K01Y01F  C2001 12 19.48918 07 04 03.33 +28 22 55.4          19.6        704
     K01Y01F  C2001 12 19.50432 07 04 01.40 +28 22 36.6          19.3        704
     K01Y01F  C2001 12 19.51946 07 03 59.47 +28 22 18.4          19.6        704

Observer details:
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, J. Piscitelli.  Measurers
    J. Stuart, R. Sayer, J. B. Evans, H. Viggh.  1.0-m f/2.15 reflector + CCD.

Orbital elements:
2001 YF1
Epoch 2001 Dec. 17.0 TT = JDT 2452260.5                 MPC
M 283.17645              (2000.0)            P               Q
n   0.54298741     Peri.  289.45431     -0.81926547     +0.46500982
a   1.4880227      Node   279.53213     -0.30846629     -0.85064349
e   0.3519139      Incl.   19.88978     -0.48337629     -0.24529884
P   1.82           H   19.3           G   0.15
From 16 observations 2001 Dec. 17-19.

Ephemeris:
2001 YF1                 a,e,i = 1.49, 0.35, 20                  q = 0.9644
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2001 12 17    07 08.98   +29 09.8    0.591    1.550   159.0    13.2    19.9
2001 12 27    06 46.72   +25 33.7    0.521    1.502   174.2     3.8    19.1
2002 01 06    06 19.80   +20 41.7    0.475    1.452   168.9     7.5    19.0
2002 01 16    05 53.08   +14 57.4    0.455    1.401   151.5    19.6    19.3
2002 01 26    05 31.50   +09 11.3    0.458    1.348   135.1    31.0    19.6
2002 02 05    05 17.50   +04 04.9    0.475    1.295   120.8    40.8    19.9
2002 02 15    05 11.20   -00 08.3    0.499    1.243   108.9    48.8    20.1
2002 02 25    05 11.58   -03 36.4    0.522    1.191    99.2    55.1    20.3
2002 03 07    05 17.19   -06 34.6    0.540    1.141    91.3    60.4    20.4
2002 03 17    05 26.86   -09 16.4    0.550    1.094    85.0    64.9    20.5
2002 03 27    05 39.71   -11 53.6    0.549    1.052    80.1    69.0    20.5
2002 04 06    05 54.98   -14 34.0    0.537    1.017    76.3    72.9    20.5
2002 04 16    06 12.43   -17 22.3    0.513    0.990    73.6    76.6    20.5
2002 04 26    06 32.12   -20 22.3    0.478    0.972    72.0    80.1    20.4
2002 05 06    06 54.76   -23 35.6    0.433    0.964    71.7    83.1    20.3
2002 05 16    07 22.33   -27 03.8    0.382    0.968    72.7    85.2    20.1
2002 05 26    07 58.92   -30 49.2    0.326    0.983    75.5    85.8    19.8
2002 06 05    08 52.65   -34 39.4    0.272    1.008    80.9    83.7    19.4
2002 06 15    10 16.87   -37 16.3    0.227    1.041    90.1    77.3    18.9
2002 06 25    12 14.04   -34 53.8    0.205    1.081   103.1    66.3    18.4
2002 07 05    14 05.82   -25 56.7    0.220    1.127   114.8    55.0    18.3
2002 07 15    15 22.69   -16 21.2    0.270    1.176   120.2    48.4    18.6
2002 07 25    16 12.73   -09 45.5    0.345    1.227   120.5    45.5    19.2
2002 08 04    16 48.11   -05 48.6    0.433    1.280   118.6    44.1    19.7
2002 08 14    17 15.93   -03 33.5    0.532    1.333   115.6    43.3    20.2
2002 08 24    17 39.82   -02 18.8    0.639    1.385   112.3    42.5    20.7
2002 09 03    18 01.61   -01 39.1    0.751    1.437   108.6    41.7    21.1
2002 09 13    18 22.34   -01 18.6    0.868    1.488   104.8    40.8    21.5
2002 09 23    18 42.59   -01 06.7    0.989    1.536   100.9    39.9    21.8
2002 10 03    19 02.60   -00 56.9    1.114    1.583    96.8    38.9    22.1

Timothy B. Spahr             (C) Copyright 2001 MPC           M.P.E.C. 2001-Y23

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