• MPC Preparation (Info)

    • MPEC 2002-Y73 : 2002 YF4

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    Read MPEC 2002-Y72 Read MPEC 2002-Y74 

    M.P.E.C. 2002-Y73                                Issued 2002 Dec. 31, 21:12 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

                                   2002 YF4

Observations:
     K02Y04F* C2002 12 27.22681 04 25 04.99 +79 54 28.7          19.1        704
     K02Y04F  C2002 12 27.24150 04 24 50.76 +79 55 01.7          19.5        704
     K02Y04F  C2002 12 27.25594 04 24 37.07 +79 55 35.6          19.4        704
     K02Y04F  C2002 12 27.27002 04 24 23.64 +79 56 07.3          19.0        704
     K02Y04F  C2002 12 27.28413 04 24 09.71 +79 56 39.1          19.5        704
     K02Y04F  C2002 12 28.15212 04 10 04.53 +80 28 23.6                      696
     K02Y04F  C2002 12 28.15741 04 09 58.92 +80 28 35.2                      696
     K02Y04F  C2002 12 31.15951 03 11 53.88 +81 52 06.7                      696
     K02Y04F  C2002 12 31.16265 03 11 49.84 +81 52 10.8                      696
     K02Y04F  C2002 12 31.82356 02 57 26.23 +82 04 33.5                      557
     K02Y04F  C2002 12 31.82706 02 57 20.88 +82 04 36.4                      557
     K02Y04F  C2002 12 31.82881 02 57 18.97 +82 04 38.5                      557
     K02Y04F  C2002 12 31.83056 02 57 16.79 +82 04 40.8                      557
     K02Y04F  C2002 12 31.83230 02 57 14.12 +82 04 41.3                      557
     K02Y04F  C2002 12 31.83581 02 57 09.08 +82 04 46.5                      557
     K02Y04F  C2002 12 31.83931 02 57 04.00 +82 04 49.9                      557

Observer details:
557 Ondrejov.  Observer P. Kusnirak.  0.65-m f/3.6 reflector + CCD.
696 Whipple Observatory, Mt. Hopkins.  Observers K. Smalley, T. B. Spahr.
    1.2-m reflector + 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.

Orbital elements:
2002 YF4
Epoch 2002 Dec. 12.0 TT = JDT 2452620.5                 MPC
M 322.74235              (2000.0)            P               Q
n   0.43207499     Peri.   94.60537     -0.77140882     -0.41574208
a   1.7328593      Node    61.55350     +0.08240001     -0.81595787
e   0.3298622      Incl.   33.22355     +0.63098230     -0.40171043
P   2.28           H   17.8           G   0.15
From 16 observations 2002 Dec. 27-31.

Ephemeris:
2002 YF4                 a,e,i = 1.73, 0.33, 33                  q = 1.1613
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2003 01 01    02 53.5    +82 07.3    0.515    1.302   117.1    42.3    18.6
2003 01 11    23 39.1    +81 27.1    0.551    1.266   107.8    47.7    18.8
2003 01 21    22 19.1    +78 38.4    0.589    1.234   100.3    51.7    19.0
2003 01 31    21 46.1    +76 43.9    0.622    1.207    94.6    54.4    19.2
2003 02 10    21 26.3    +76 02.5    0.647    1.186    90.6    56.3    19.3
2003 02 20    21 07.5    +76 25.0    0.661    1.171    88.1    57.6    19.3
2003 03 02    20 41.6    +77 39.3    0.663    1.163    87.0    58.3    19.3
2003 03 12    19 56.0    +79 29.2    0.653    1.162    87.2    58.7    19.3
2003 03 22    18 27.1    +81 07.1    0.632    1.168    88.7    58.5    19.2
2003 04 01    16 09.3    +80 31.9    0.604    1.181    91.5    57.7    19.2
2003 04 11    14 19.1    +75 54.8    0.573    1.201    95.5    56.1    19.0
2003 04 21    13 23.93   +67 46.1    0.545    1.227   100.4    53.7    18.9
2003 05 01    12 58.68   +56 55.4    0.528    1.257   105.7    50.5    18.8
2003 05 11    12 48.26   +44 14.0    0.531    1.292   110.1    47.2    18.8
2003 05 21    12 46.01   +31 01.6    0.559    1.331   112.6    44.6    18.9
2003 05 31    12 48.79   +18 40.7    0.615    1.372   112.5    43.1    19.1
2003 06 10    12 55.10   +08 01.0    0.695    1.415   110.3    42.3    19.4
2003 06 20    13 04.02   -00 47.5    0.795    1.460   106.7    41.8    19.8
2003 06 30    13 15.02   -07 58.5    0.910    1.505   102.5    41.3    20.1
2003 07 10    13 27.82   -13 52.3    1.036    1.550    98.1    40.5    20.4
2003 07 20    13 42.15   -18 46.7    1.169    1.596    93.6    39.5    20.7
2003 07 30    13 57.91   -22 55.8    1.306    1.641    89.1    38.2    21.0
2003 08 09    14 15.02   -26 29.8    1.446    1.686    84.6    36.8    21.2
2003 08 19    14 33.40   -29 35.7    1.587    1.729    80.1    35.2    21.4
2003 08 29    14 53.02   -32 18.3    1.727    1.772    75.7    33.5    21.6
2003 09 08    15 13.88   -34 41.0    1.865    1.813    71.3    31.8    21.8
2003 09 18    15 35.91   -36 45.3    1.999    1.854    67.0    29.9    21.9

Brian G. Marsden             (C) Copyright 2002 MPC           M.P.E.C. 2002-Y73

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