• MPC Preparation (Info)

  • MPEC 2017-W116: 2017 WS12

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    M.P.E.C. 2017-W116                               Issued 2017 Nov. 24, 22:19 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
    
                                       2017 WS12
    
    Observations:
         K17W12S* C2017 11 18.48854 06 08 28.560-36 07 43.67         21.6 wLEW116F51
         K17W12S  C2017 11 18.49827 06 08 31.398-36 07 43.69         21.7 wLEW116F51
         K17W12S  C2017 11 18.50800 06 08 34.201-36 07 43.73         21.5 wLEW116F51
         K17W12S KC2017 11 19.56833 06 14 05.80 -36 05 24.5          21.8 RUEW116474
         K17W12S KC2017 11 19.57305 06 14 07.21 -36 05 24.1          21.8 RUEW116474
         K17W12S KC2017 11 19.57777 06 14 08.65 -36 05 24.2          21.3 RUEW116474
         K17W12S KC2017 11 21.61495 06 24 43.57 -35 56 49.6          21.6 RUEW116474
         K17W12S KC2017 11 21.61731 06 24 44.22 -35 56 48.5          21.0 RUEW116474
         K17W12S KC2017 11 21.61967 06 24 44.91 -35 56 48.0          21.8 RUEW116474
         K17W12S KC2017 11 21.62202 06 24 45.59 -35 56 47.3          21.3 RUEW116474
         K17W12S KC2017 11 22.60333 06 29 51.15 -35 49 57.6          21.0 RUEW116474
         K17W12S KC2017 11 22.60627 06 29 51.95 -35 49 56.4          21.5 RUEW116474
         K17W12S KC2017 11 22.60921 06 29 52.82 -35 49 55.0          21.4 RUEW116474
    
    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.
    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:
    2017 WS12                                                Earth MOID = 0.1378 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 326.74851              (2000.0)            P               Q
    n   0.36832975     Peri.  301.95653     +0.25475982     -0.96068274
    a   1.9274281      Node   132.86342     +0.93025766     +0.21230581
    e   0.4494275      Incl.    8.66204     +0.26404191     +0.17892712
    P   2.68           H   23.1           G   0.15           U   8
    Residuals in seconds of arc
    171118 F51  0.2-  0.1-    171119 474  0.5+  0.4-    171122 474  0.4+  0.0
    171118 F51  0.1+  0.0     171121 474  0.4+  0.1+    171122 474  0.3-  0.1-
    171118 F51  0.0   0.0     171121 474  0.1-  0.3+    171122 474  0.1-  0.1-
    171119 474  0.3-  0.2+    171121 474  0.1-  0.0
    171119 474  0.1-  0.2+    171121 474  0.2-  0.1-
    
    Ephemeris:
    2017 WS12                a,e,i = 1.93, 0.45, 9                   q = 1.0612
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 10 25    04 12 55.5 -29 01 28   0.2259  1.1461   127.5    43.5    21.8
    ...
    2017 11 09    05 19 59.4 -34 56 09   0.1936  1.0950   118.0    53.0    21.7
    ...
    2017 11 17    06 00 43.0 -36 05 48   0.1821  1.0766   114.3    56.8    21.6
    ...
    2017 11 23    06 31 53.5 -35 46 50   0.1754  1.0674   112.6    58.7    21.6
    2017 11 24    06 37 02.8 -35 37 22   0.1745  1.0662   112.4    58.9    21.6
    2017 11 25    06 42 10.5 -35 26 04   0.1736  1.0652   112.3    59.0    21.6
    ...
    2017 12 01    07 12 05.5 -33 40 28   0.1689  1.0615   112.2    59.3    21.5
    ...
    2017 12 09    07 48 19.2 -29 44 16   0.1650  1.0631   114.1    57.7    21.4
    ...
    2017 12 24    08 39 23.4 -18 18 59   0.1657  1.0860   124.5    48.3    21.2
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-W116
    

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