• MPC Preparation (Info)

  • MPEC 2017-W124: 2017 WY12

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    M.P.E.C. 2017-W124                               Issued 2017 Nov. 24, 22:57 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 WY12
    
    Observations:
         K17W12Y* C2017 11 20.46680 04 40 46.332-08 20 43.05         21.0 wLEW124F51
         K17W12Y  C2017 11 20.48111 04 40 47.719-08 21 14.87         20.4 wLEW124F51
         K17W12Y  C2017 11 20.49542 04 40 49.111-08 21 46.97         20.5 wLEW124F51
         K17W12Y  C2017 11 20.50974 04 40 50.487-08 22 18.87         20.4 wLEW124F51
         K17W12Y  C2017 11 21.39793 04 42 27.97 -08 55 34.0          19.6 RoEW124926
         K17W12Y  C2017 11 21.40602 04 42 28.82 -08 55 52.1          19.7 RoEW124926
         K17W12Y  C2017 11 21.41406 04 42 29.60 -08 56 09.9          19.8 RoEW124926
         K17W12Y KC2017 11 22.22904 04 44 02.40 -09 26 37.1                oEW124691
         K17W12Y KC2017 11 22.23209 04 44 02.72 -09 26 44.4                oEW124691
         K17W12Y KC2017 11 22.23517 04 44 03.02 -09 26 51.0                oEW124691
         K17W12Y KC2017 11 22.24704204 44 03.49 -09 27 21.7          20.1 VuEW124H21
         K17W12Y KC2017 11 22.24943504 44 03.73 -09 27 27.2          20.4 VuEW124H21
         K17W12Y KC2017 11 22.25384504 44 04.19 -09 27 37.1          20.2 VuEW124H21
         K17W12Y KC2017 11 23.57397 04 46 33.08 -10 16 12.1          19.8 RUEW124474
         K17W12Y KC2017 11 23.57609 04 46 33.29 -10 16 17.1          20.3 RUEW124474
         K17W12Y KC2017 11 23.57820 04 46 33.51 -10 16 21.5          19.8 RUEW124474
    
    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.
    691 Steward Observatory, Kitt Peak.  Observer M. J. Brucker.  0.9-m f/3
        reflector + CCD.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + 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.
    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.
    
    Orbital elements:
    2017 WY12                                                Earth MOID = 0.2088 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 329.98365              (2000.0)            P               Q
    n   0.25440865     Peri.  272.96435     -0.15583596     -0.98767619
    a   2.4666913      Node   186.05908     +0.95211760     -0.14627800
    e   0.5410364      Incl.    7.90813     +0.26303466     -0.05566417
    P   3.87           H   21.6           G   0.15           U   7
    Residuals in seconds of arc
    171120 F51  0.1-  0.1-    171121 926  0.1-  0.0     171122 H21  0.2+  0.1-
    171120 F51  0.0   0.1+    171122 691  0.0   0.2+    171123 474  0.1+  0.1+
    171120 F51  0.2+  0.0     171122 691  0.1+  0.2-    171123 474  0.1-  0.2-
    171120 F51  0.0   0.0     171122 691  0.1-  0.2+    171123 474  0.1-  0.1+
    171121 926  0.4-  0.1-    171122 H21  0.1+  0.0
    171121 926  0.2+  0.1-    171122 H21  0.0   0.1-
    
    Ephemeris:
    2017 WY12                a,e,i = 2.47, 0.54, 8                   q = 1.1321
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 10 25    03 57 53.9 +05 43 05   0.4156  1.3692   149.6    21.5    21.4
    ...
    2017 11 09    04 21 12.7 -01 29 46   0.3215  1.2837   152.2    21.1    20.7
    ...
    2017 11 17    04 34 36.2 -06 11 58   0.2847  1.2438   150.1    23.3    20.4
    ...
    2017 11 23    04 45 27.9 -09 55 03   0.2629  1.2170   147.2    26.0    20.3
    2017 11 24    04 47 22.0 -10 32 22   0.2597  1.2128   146.7    26.6    20.3
    2017 11 25    04 49 18.0 -11 09 36   0.2566  1.2087   146.1    27.1    20.3
    ...
    2017 12 01    05 01 35.2 -14 47 46   0.2407  1.1862   142.5    30.4    20.2
    ...
    2017 12 09    05 20 03.2 -19 09 46   0.2251  1.1617   137.8    34.7    20.1
    ...
    2017 12 24    06 01 12.3 -24 25 59   0.2100  1.1351   132.1    40.0    20.1
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-W124
    

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