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  • MPEC 2017-S150: 2017 SR12

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    M.P.E.C. 2017-S150                               Issued 2017 Sept. 25, 21:58 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 SR12
    
    Observations:
         K17S12R  C2017 09 22.51866 03 57 41.460+12 07 02.89         22.1 wLES150F51
         K17S12R  C2017 09 22.53103 03 57 43.280+12 07 19.48         21.8 wLES150F51
         K17S12R  C2017 09 22.54337 03 57 45.065+12 07 35.88         22.0 wLES150F51
         K17S12R  C2017 09 22.55566 03 57 46.831+12 07 52.18         21.8 wLES150F51
         K17S12R  C2017 09 23.48798 04 00 07.101+12 28 36.12         21.7 wLES150F51
         K17S12R  C2017 09 23.49899 04 00 08.689+12 28 50.85         22.2 wLES150F51
         K17S12R  C2017 09 23.50997 04 00 10.297+12 29 05.90         21.9 wLES150F51
         K17S12R  C2017 09 23.52098 04 00 11.881+12 29 20.82         21.6 wLES150F51
         K17S12R* C2017 09 24.51685 04 02 41.478+12 51 49.91         21.6 wLES150F51
         K17S12R  C2017 09 24.53026 04 02 43.392+12 52 07.89         22.3 wLES150F51
         K17S12R  C2017 09 24.54367 04 02 45.325+12 52 26.79         22.1 wLES150F51
         K17S12R  C2017 09 24.55710 04 02 47.283+12 52 45.15         21.9 wLES150F51
         K17S12R KC2017 09 25.36912204 04 49.31 +13 11 15.5          21.7 VuES150H21
         K17S12R KC2017 09 25.37380104 04 49.97 +13 11 22.1          21.5 VuES150H21
         K17S12R KC2017 09 25.38028404 04 50.89 +13 11 31.4          22.1 VuES150H21
    
    Observer details:
    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.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + CCD, 1.3-m f/4.0 astrograph + CCD.
    
    Orbital elements:
    2017 SR12                                                Earth MOID = 0.3081 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 345.53099              (2000.0)            P               Q
    n   0.23222643     Peri.   16.07048     +0.58198742     -0.80493133
    a   2.6213697      Node    38.54994     +0.72416890     +0.44829948
    e   0.5067166      Incl.   10.69520     +0.36995951     +0.38873272
    P   4.24           H   20.8           G   0.15           U   8
    Residuals in seconds of arc
    170922 F51  0.8-  0.1+    170923 F51  0.5-  0.1-    170924 F51  0.7-  0.2+
    170922 F51  0.3-  0.2+    170923 F51  0.2-  0.1+    170924 F51  0.3-  0.2+
    170922 F51  0.3-  0.1+    170923 F51  0.3-  0.1+    170925 H21  0.0   0.0
    170922 F51  0.3-  0.1+    170924 F51  0.3-  0.2+    170925 H21  0.3-  0.1+
    170923 F51  0.3-  0.1+    170924 F51  0.6-  0.3-    170925 H21  0.6-  0.4+
    
    Ephemeris:
    2017 SR12                a,e,i = 2.62, 0.51, 11                  q = 1.2931
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 08 26    02 50 37.2 +03 43 37   0.7974  1.4937   110.9    39.2    22.7
    ...
    2017 09 10    03 26 39.7 +07 54 27   0.6630  1.4239   115.4    39.7    22.2
    ...
    2017 09 18    03 46 25.0 +10 30 33   0.6010  1.3914   117.9    39.7    22.0
    ...
    2017 09 24    04 01 23.3 +12 40 09   0.5590  1.3695   119.8    39.5    21.8
    2017 09 25    04 03 53.5 +13 02 53   0.5524  1.3661   120.1    39.4    21.8
    2017 09 26    04 06 23.9 +13 25 57   0.5459  1.3628   120.4    39.4    21.7
    ...
    2017 10 02    04 21 27.7 +15 51 45   0.5094  1.3442   122.3    39.0    21.5
    ...
    2017 10 10    04 41 30.0 +19 26 17   0.4672  1.3235   125.1    38.1    21.3
    ...
    2017 10 25    05 17 36.1 +27 06 02   0.4083  1.2988   130.9    35.4    20.9
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S150
    

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