• MPC Preparation (Info)

  • MPEC 2017-X74 : 2017 WY28

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    M.P.E.C. 2017-X74                                Issued 2017 Dec. 8, 01:04 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 WY28
    
    Observations:
         K17W28Y* C2017 11 21.36681 04 21 20.726+23 18 29.43         21.8 wLEX074F51
         K17W28Y  C2017 11 21.37980 04 21 18.504+23 17 51.81         22.2 wLEX074F51
         K17W28Y  C2017 11 21.39292 04 21 16.234+23 17 13.54         22.3 wLEX074F51
         K17W28Y  C2017 11 21.40613 04 21 13.979+23 16 35.26         21.9 wLEX074F51
         K17W28Y _C2017 11 22.47448904 18 19.138+22 25 14.92         21.6 GUEX074568
         K17W28Y _C2017 11 22.47543804 18 18.980+22 25 12.18         21.9 GUEX074568
         K17W28Y KC2017 11 25.27765 04 11 12.65 +20 16 40.5                oEX074691
         K17W28Y KC2017 11 25.29882 04 11 09.49 +20 15 44.1                oEX074691
         K17W28Y ^C2017 12 07.23831 03 48 37.38 +12 56 59.6                oEX074695
         K17W28Y ^C2017 12 07.24784 03 48 36.53 +12 56 42.6                oEX074695
         K17W28Y ^C2017 12 07.25736 03 48 35.70 +12 56 25.4                oEX074695
    
    Observer details:
    568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
    691 Steward Observatory, Kitt Peak.  Observer M. J. Brucker.  0.9-m f/3
        reflector + CCD.
    695 Kitt Peak.  Observer R. A. Mastaler.  2.3-m f/9 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 WY28                                                Earth MOID = 0.0894 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M   4.86997              (2000.0)            P               Q
    n   0.22916407     Peri.   75.01842     +0.56893712     +0.61909621
    a   2.6446713      Node   243.19359     -0.76253467     +0.64364152
    e   0.7015400      Incl.   37.33687     +0.30797960     +0.44993941
    P   4.30           H   21.5           G   0.15           U   8
    Residuals in seconds of arc
    171121 F51  0.1-  0.0     171122 568  0.0   0.7-    171207 695  0.1+  0.2+
    171121 F51  0.1+  0.1+    171122 568  0.0   0.8-    171207 695  0.0   0.0
    171121 F51  0.1-  0.0     171125 691  0.4-  0.6+    171207 695  0.2+  0.4-
    171121 F51  0.1+  0.1+    171125 691  0.4-  0.3+
    
    Ephemeris:
    2017 WY28                a,e,i = 2.64, 0.70, 37                  q = 0.7893
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 11 08    05 06 48.6 +35 12 40   0.5532  1.4772   144.7    22.8    22.1
    ...
    2017 11 23    04 16 56.1 +22 00 30   0.6447  1.6303   174.4     3.4    21.9
    ...
    2017 12 01    03 58 54.7 +16 24 06   0.7291  1.7103   171.3     5.0    22.4
    ...
    2017 12 07    03 48 57.7 +13 04 07   0.8064  1.7694   161.8    10.0    22.9
    2017 12 08    03 47 34.1 +12 35 00   0.8204  1.7792   160.3    10.7    23.0
    2017 12 09    03 46 14.9 +12 07 02   0.8346  1.7889   158.9    11.4    23.1
    ...
    2017 12 15    03 39 43.9 +09 41 51   0.9253  1.8469   150.5    15.2    23.5
    ...
    2017 12 23    03 34 21.4 +07 20 55   1.0591  1.9229   140.5    19.0    24.0
    ...
    2018 01 07    03 32 09.0 +04 54 06   1.3395  2.0612   124.4    23.2    24.8
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-X74
    

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