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  • MPEC 1999-T36 : 1999 KR18

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    M.P.E.C. 1999-T36                                Issued 1999 Oct. 7, 20:22 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.
    
                 BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
              URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       1999 KR18
    
    Observations:
         J99K18R  C1999 05 11.36241 20 46 07.53 -17 43 25.4          24.6 R      807
         J99K18R  C1999 05 18.31687 20 46 03.91 -17 43 36.4          25.0 R      807
         J99K18R* C1999 05 18.39397 20 46 03.87 -17 43 37.1          24.7 R      807
         J99K18R  C1999 05 19.31240 20 46 03.12 -17 43 39.3          24.8 R      807
         J99K18R  C1999 05 19.38827 20 46 03.03 -17 43 39.6          24.4 R      807
         J99K18R 4C1999 08 08.38579 20 42 00.01 -17 58 58.7          25.1 R      568
         J99K18R 4C1999 08 08.43446 20 41 59.82 -17 58 59.7          25.5 R      568
         J99K18R 4C1999 08 08.43968 20 41 59.79 -17 58 59.7          25.1 R      568
         J99K18R 4C1999 08 08.44484 20 41 59.77 -17 59 00.0          24.9 R      568
    
    Observer details:
    568 Mauna Kea.  Observers R. L. Allen, G. Bernstein, P. Guhathakurta.
        Measurer G. Bernstein.  10-m Keck Telescope + CCD.
    807 Cerro Tololo.  Observers R. L. Allen, G. Bernstein, P. Guhathakurta.
        Measurer G. Bernstein.  4-m Blanco Telescope + CCD.
    
    Orbital elements:
    1999 KR18
    The following assumed 1:2 Neptune-resonance orbital elements
    keep the object more than 17 AU from Neptune over a 14 000-year period
    Epoch 1999 June 11.0 TT = JDT 2451340.5                 Marsden
    M 276.00789              (2000.0)            P               Q
    n   0.00297167     Peri.  149.11800     +0.28009697     -0.95991443
    a  47.9147465      Node   284.61427     +0.87852940     +0.26072206
    e   0.3799145      Incl.    0.62095     +0.38695191     +0.10289942
    P 332              H    8.0           G   0.15
    From 9 observations 1999 May 11-Aug. 8.
    
    Ephemeris:
    1999 KR18                a,e,i = 47.91, 0.38, 1                  q = 29.711
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    1999 09 29    20 39.28   -18 09.3   52.001   52.540   122.1     0.9    25.3
    1999 10 09    20 39.04   -18 10.3   52.147   52.532   112.2     1.0    25.3
    1999 10 19    20 38.92   -18 10.8   52.303   52.523   102.2     1.1    25.4
    1999 10 29    20 38.92   -18 10.8   52.466   52.515    92.3     1.1    25.4
    1999 11 08    20 39.07   -18 10.3   52.630   52.507    82.3     1.1    25.4
    1999 11 18    20 39.34   -18 09.3   52.791   52.498    72.3     1.0    25.4
    1999 11 28    20 39.73   -18 07.8   52.941   52.490    62.3     1.0    25.4
    1999 12 08    20 40.25   -18 05.9   53.079   52.482    52.3     0.9    25.4
    1999 12 18    20 40.86   -18 03.6   53.197   52.473    42.3     0.7    25.4
    1999 12 28    20 41.56   -18 01.0   53.294   52.465    32.3     0.6    25.3
    
    Brian G. Marsden             (C) Copyright 1999 MPC           M.P.E.C. 1999-T36
    

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