• MPC Preparation (Info)

  • MPEC 2017-W185: 2017 WC16

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    M.P.E.C. 2017-W185                               Issued 2017 Nov. 27, 12:30 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 WC16
    
    Observations:
         K17W16C* C2017 11 18.52989 07 13 16.190+64 18 22.25         21.5 wLEW185F51
         K17W16C  C2017 11 18.54311 07 13 13.894+64 18 22.20         21.9 wLEW185F51
         K17W16C  C2017 11 18.55633 07 13 11.607+64 18 22.43         21.5 wLEW185F51
         K17W16C  C2017 11 22.29866 07 02 13.64 +64 13 57.3          20.8 GUEW185I52
         K17W16C  C2017 11 22.30741 07 02 11.67 +64 13 56.3                UEW185I52
         K17W16C  C2017 11 22.32554 07 02 08.21 +64 13 54.6          21.6 GUEW185I52
         K17W16C KC2017 11 22.33929 07 02 05.72 +64 13 53.1          21.2 RoEW185291
         K17W16C KC2017 11 22.34362 07 02 04.92 +64 13 52.8          21.3 RoEW185291
         K17W16C KC2017 11 22.34795 07 02 04.05 +64 13 52.2          21.2 RoEW185291
         K17W16C  C2017 11 26.37842 06 48 52.76 +63 59 30.2          21.3 GUEW185I52
         K17W16C  C2017 11 26.38429 06 48 51.53 +63 59 28.1          21.4 GUEW185I52
         K17W16C  C2017 11 27.39299 06 45 23.41 +63 54 06.4          20.7 GUEW185I52
         K17W16C  C2017 11 27.39632 06 45 22.64 +63 54 05.5          20.8 GUEW185I52
         K17W16C  C2017 11 27.39965 06 45 22.05 +63 54 04.8          21.7 GUEW185I52
    
    Observer details:
    291 LPL/Spacewatch II.  Observer M. J. Brucker.  1.8-m f/2.7 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.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers R. A. Kowalski,
        A. R. Gibbs.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. G. Matheny, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    
    Orbital elements:
    2017 WC16                                                Earth MOID = 0.1225 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M  20.66916              (2000.0)            P               Q
    n   0.32589204     Peri.   29.47505     +0.81774084     +0.38454865
    a   2.0913187      Node   301.51257     -0.57523828     +0.57188253
    e   0.4756997      Incl.   30.15653     +0.02002098     +0.72461901
    P   3.02           H   19.0           G   0.15           U   7
    Residuals in seconds of arc
    171118 F51  0.1+  0.0     171122 I52  0.8-  0.0     171126 I52  0.2-  0.4-
    171118 F51  0.0   0.1-    171122 291  0.1+  0.0     171127 I52  0.1+  0.2-
    171118 F51  0.1-  0.2+    171122 291  0.3+  0.2+    171127 I52  0.3-  0.0
    171122 I52  1.0+  0.2-    171122 291  0.1+  0.1+    171127 I52  0.5+  0.5+
    171122 I52  0.9-  0.3-    171126 I52  0.3-  0.0
    
    Ephemeris:
    2017 WC16                a,e,i = 2.09, 0.48, 30                  q = 1.0965
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 10 28    07 45 21.1 +63 18 21   1.0712  1.6308   104.3    36.2    21.7
    ...
    2017 11 12    07 28 47.9 +64 10 28   1.0401  1.7270   116.6    30.8    21.6
    ...
    2017 11 20    07 09 07.2 +64 17 30   1.0282  1.7777   123.7    27.6    21.5
    ...
    2017 11 26    06 50 09.9 +64 01 15   1.0240  1.8155   129.0    25.0    21.5
    2017 11 27    06 46 44.9 +63 56 13   1.0238  1.8217   129.9    24.5    21.5
    2017 11 28    06 43 16.7 +63 50 27   1.0238  1.8280   130.8    24.1    21.5
    ...
    2017 12 04    06 21 46.3 +62 59 29   1.0274  1.8653   135.8    21.6    21.5
    ...
    2017 12 12    05 53 33.2 +61 06 18   1.0436  1.9143   141.4    18.7    21.5
    ...
    2017 12 27    05 12 25.5 +55 40 21   1.1165  2.0041   145.2    16.3    21.6
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-W185
    

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