• MPC Preparation (Info)

  • MPEC 2018-P100: 2018 PF21

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    M.P.E.C. 2018-P100                               Issued 2018 Aug. 14, 17:52 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F 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 https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2018 PF21
    
    Observations:
         K18P21F* C2018 08 08.41873 21 31 46.268-32 55 55.28         21.6 wUEP100F51
         K18P21F  C2018 08 08.42972 21 31 46.093-32 56 36.84         21.7 wUEP100F51
         K18P21F  C2018 08 08.44071 21 31 45.917-32 57 17.74         21.7 wUEP100F51
         K18P21F |C2018 08 10.08103 21 31 33.07 -34 39 45.1          21.2 GUEP100807
         K18P21F |C2018 08 10.08524 21 31 33.00 -34 40 01.1          21.3 GUEP100807
         K18P21F |C2018 08 10.09005 21 31 32.99 -34 40 19.4          20.6 GUEP100807
         K18P21F KC2018 08 11.56223 21 31 17.78 -36 12 28.9          21.1 GVEP100474
         K18P21F KC2018 08 11.56517 21 31 17.73 -36 12 40.1          21.4 GVEP100474
         K18P21F KC2018 08 11.56811 21 31 17.70 -36 12 51.0          21.4 GVEP100474
         K18P21F |C2018 08 14.23129 21 30 49.59 -38 58 27.0          21.6 GUEP100807
         K18P21F |C2018 08 14.23674 21 30 49.48 -38 58 47.1          21.6 GUEP100807
         K18P21F |C2018 08 14.24235 21 30 49.39 -38 59 07.8          21.6 GUEP100807
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
        P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
        + CCD, 1.00-m f/10.0 astrograph + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
        M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
        M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat, C. Waters, R. Weryk.
        1.8-m Ritchey-Chretien + CCD.
    
    Orbital elements:
    2018 PF21                                                Earth MOID = 0.4174 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 284.96766              (2000.0)            P               Q
    n   0.35151003     Peri.  246.92560     +0.90136182     -0.23446428
    a   1.9884327      Node   124.67868     +0.29694265     +0.94660803
    e   0.3590839      Incl.   26.28011     -0.31523314     +0.22126847
    P   2.80           H   21.8           G   0.15           U   8
    Residuals in seconds of arc
    180808 F51  0.3+  0.1-    180810 807  0.1+  0.0     180811 474  0.7+  0.1-
    180808 F51  0.4+  0.2-    180810 807  0.9+  0.0     180814 807  0.3+  0.0
    180808 F51  0.6+  0.2+    180811 474  0.4+  0.0     180814 807  0.3+  0.0
    180810 807  0.2+  0.0     180811 474  0.4+  0.2-    180814 807  0.6+  0.1-
    
    Ephemeris:
    2018 PF21                a,e,i = 1.99, 0.36, 26                  q = 1.2744
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 07 15    21 28 47.2 -11 38 46   0.5674  1.5385   151.3    18.5    22.5
    ...
    2018 07 30    21 32 10.2 -23 28 24   0.4689  1.4746   166.0     9.6    21.6
    ...
    2018 08 07    21 31 55.9 -31 27 05   0.4402  1.4425   164.0    11.1    21.5
    ...
    2018 08 13    21 31 03.2 -37 42 08   0.4304  1.4197   157.1    16.1    21.6
    2018 08 14    21 30 52.4 -38 44 05   0.4297  1.4160   155.8    17.1    21.6
    2018 08 15    21 30 41.4 -39 45 35   0.4293  1.4124   154.4    18.0    21.7
    ...
    2018 08 21    21 29 38.9 -45 39 42   0.4320  1.3911   146.0    24.0    21.8
    ...
    2018 08 29    21 29 08.7 -52 31 14   0.4473  1.3649   135.4    31.3    22.1
    ...
    2018 09 13    21 35 56.3 -61 24 19   0.4990  1.3234   119.2    41.6    22.5
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-P100
    

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