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  • MPEC 2018-B30 : 2018 AO12

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    M.P.E.C. 2018-B30                                Issued 2018 Jan. 17, 23:50 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 AO12
    
    Observations:
         K18A12O* C2018 01 15.33258 07 47 00.628+23 43 16.93         22.6 wUEB030F51
         K18A12O  C2018 01 15.34509 07 47 02.161+23 43 15.84         22.4 wUEB030F51
         K18A12O  C2018 01 15.37007 07 47 05.185+23 43 13.38         22.9 wUEB030F51
         K18A12O _C2018 01 16.34142907 49 19.630+23 40 38.57         21.9 GUEB030568
         K18A12O _C2018 01 16.34260407 49 19.776+23 40 38.45         22.0 GUEB030568
         K18A12O _C2018 01 16.34378107 49 19.918+23 40 38.32         22.0 GUEB030568
         K18A12O KC2018 01 17.34627 07 51 35.72 +23 37 38.6                oEB030291
         K18A12O KC2018 01 17.36356 07 51 37.78 +23 37 34.6                oEB030291
         K18A12O KC2018 01 17.38088 07 51 39.83 +23 37 31.1                oEB030291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
    568 Mauna Kea.  Observers R. J. Wainscoat, L. Wells.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + 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. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
        Ritchey-Chretien + CCD.
    
    Orbital elements:
    2018 AO12                                                Earth MOID = 0.1908 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 319.73373              (2000.0)            P               Q
    n   0.30322974     Peri.   37.12317     -0.41116383     -0.91149192
    a   2.1942605      Node    77.15727     +0.83354435     -0.38094510
    e   0.4654993      Incl.    0.66170     +0.36898255     -0.15512352
    P   3.25           H   25.4           G   0.15           U   8
    Residuals in seconds of arc
    180115 F51  0.2+  0.0     180116 568  0.3+  0.2-    180117 291  0.7+  0.2+
    180115 F51  0.3+  0.1-    180116 568  0.3+  0.2-    180117 291  0.5+  0.3-
    180115 F51  0.4+  0.1-    180116 568  0.3+  0.2-    180117 291  0.1-  0.0
    
    Ephemeris:
    2018 AO12                a,e,i = 2.19, 0.47, 1                   q = 1.1728
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 12 18    06 45 04.2 +23 44 21   0.2323  1.2105   165.7    11.6    23.4
    ...
    2018 01 02    07 16 32.9 +23 58 17   0.1987  1.1810   173.6     5.3    22.7
    ...
    2018 01 10    07 34 42.1 +23 53 34   0.1908  1.1740   176.9     2.6    22.4
    ...
    2018 01 16    07 48 30.6 +23 41 34   0.1893  1.1729   177.3     2.3    22.4
    2018 01 17    07 50 48.5 +23 38 47   0.1894  1.1730   177.1     2.5    22.4
    2018 01 18    07 53 06.1 +23 35 45   0.1897  1.1733   176.8     2.7    22.4
    ...
    2018 01 24    08 06 43.4 +23 12 39   0.1934  1.1770   174.4     4.7    22.6
    ...
    2018 02 01    08 24 14.6 +22 29 18   0.2044  1.1874   170.7     7.7    22.9
    ...
    2018 02 16    08 53 46.5 +20 38 46   0.2436  1.2228   162.8    13.8    23.6
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-B30
    

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