• MPC Preparation (Info)

    • MPEC 2001-Y18 : 2001 YA1

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    Read MPEC 2001-Y17 Read MPEC 2001-Y19 

    M.P.E.C. 2001-Y18                                Issued 2001 Dec. 19, 23:09 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 YA1

Observations:
     K01Y01A* C2001 12 17.07502 02 22 35.42 +10 56 09.7          19.5        704
     K01Y01A  C2001 12 17.09034 02 22 40.05 +10 54 26.0          19.2        704
     K01Y01A  C2001 12 17.10550 02 22 44.65 +10 52 43.3          20.2        704
     K01Y01A  C2001 12 17.12068 02 22 49.30 +10 51 00.2          20.2        704
     K01Y01A  C2001 12 17.13588 02 22 53.90 +10 49 17.3          19.6        704
     K01Y01A  C2001 12 18.22347 02 28 30.41 +08 48 41.3          19.5 R      649
     K01Y01A  C2001 12 18.22553 02 28 30.99 +08 48 27.5          19.4 R      649
     K01Y01A  C2001 12 18.22820 02 28 31.81 +08 48 10.8          19.6 R      649
     K01Y01A  C2001 12 19.14046 02 33 08.41 +07 10 53.9          19.3        704
     K01Y01A  C2001 12 19.17422 02 33 18.02 +07 07 21.9          20.1        704
     K01Y01A  C2001 12 19.18937 02 33 22.35 +07 05 47.2          20.2        704
     K01Y01A  C2001 12 19.20455 02 33 26.70 +07 04 12.6          20.5        704

Observer details:
649 Powell Observatory, Louisburg.  Observer R. Fredrick.  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 YA1
Epoch 2001 Dec. 17.0 TT = JDT 2452260.5                 MPC
M   4.72666              (2000.0)            P               Q
n   0.33201306     Peri.  167.37846     +0.43106519     -0.78456147
a   2.0655352      Node   255.56901     +0.78270437     +0.57088466
e   0.4498086      Incl.   27.40117     +0.44895064     -0.24197933
P   2.97           H   21.2           G   0.15
From 12 observations 2001 Dec. 17-19.

Ephemeris:
2001 YA1                 a,e,i = 2.07, 0.45, 27                  q = 1.1364
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2001 12 17    02 22.17   +11 05.0    0.226    1.147   131.8    39.8    19.8
2001 12 22    02 46.73   +02 29.9    0.248    1.155   128.6    41.7    20.1
2001 12 27    03 07.97   -04 14.5    0.279    1.166   125.1    43.7    20.4
2002 01 01    03 26.52   -09 17.4    0.314    1.179   121.7    45.2    20.8
2002 01 06    03 42.93   -12 58.0    0.354    1.194   118.7    46.3    21.1
2002 01 11    03 57.71   -15 35.1    0.396    1.211   116.1    46.8    21.4
2002 01 16    04 11.29   -17 24.0    0.440    1.230   114.0    46.9    21.6
2002 01 21    04 23.97   -18 36.5    0.486    1.251   112.1    46.8    21.9
2002 01 26    04 35.99   -19 21.5    0.533    1.273   110.5    46.4    22.1

Timothy B. Spahr             (C) Copyright 2001 MPC           M.P.E.C. 2001-Y18

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    MPEC number:

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    • B01 (the abbreviated form)