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  • MPEC 2017-H73 : 2017 HF4

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    M.P.E.C. 2017-H73                                Issued 2017 Apr. 28, 02:19 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 HF4
    
    Observations:
         K17H04F* C2017 04 25.32379 11 44 47.708-15 00 39.58         21.5 wLEH073F51
         K17H04F  C2017 04 25.33424 11 44 48.385-15 02 08.64         21.5 wLEH073F51
         K17H04F  C2017 04 25.35520 11 44 49.760-15 05 06.68         21.1 wLEH073F51
         K17H04F  C2017 04 26.23775611 46 11.461-17 06 05.42         20.6 GUEH073T12
         K17H04F  C2017 04 27.40128011 47 52.534-19 33 50.95         21.3 GUEH073T12
         K17H04F  C2017 04 27.40204511 47 52.588-19 33 56.49         21.3 GUEH073T12
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
        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.
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. Fohring,
        Z. Claytor, D. J. Tholen.  Measurer D. J. Tholen.  2.24-m University of
        Hawaii reflector.
    
    Orbital elements:
    2017 HF4                                                 Earth MOID = 0.0917 AU
    Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
    M 350.08067              (2000.0)            P               Q
    n   0.29869035     Peri.  148.16953     -0.98109790     -0.13115769
    a   2.2164363      Node    25.48120     +0.00749888     -0.76048505
    e   0.5268570      Incl.   19.31286     +0.19336667     -0.63597181
    P   3.30           H   23.8           G   0.15           U   5
    Residuals in seconds of arc
    170425 F51  0.1+  0.0     170425 F51  0.0   0.1+    170427 T12  0.0   0.0
    170425 F51  0.0   0.1-    170426 T12  0.0   0.0     170427 T12  0.0   0.0
    
    Ephemeris:
    2017 HF4                 a,e,i = 2.22, 0.53, 19                  q = 1.0487
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 03 29    10 51 13.9 +70 02 43   0.1656  1.0530   104.8    66.4    22.4
    ...
    2017 04 13    11 25 45.3 +26 48 33   0.1135  1.0845   134.0    41.7    20.9
    ...
    2017 04 21    11 38 20.4 -03 02 36   0.1284  1.1126   145.1    31.1    20.9
    ...
    2017 04 27    11 47 17.9 -18 43 43   0.1586  1.1382   143.7    31.6    21.4
    2017 04 28    11 48 48.3 -20 44 17   0.1647  1.1428   143.1    31.9    21.5
    2017 04 29    11 50 19.2 -22 35 59   0.1710  1.1475   142.5    32.3    21.6
    ...
    2017 05 05    11 59 39.9 -31 13 08   0.2129  1.1774   138.9    34.2    22.2
    ...
    2017 05 13    12 12 57.1 -38 06 52   0.2762  1.2215   135.0    35.8    22.9
    ...
    2017 05 28    12 40 47.4 -44 10 05   0.4097  1.3143   129.9    36.3    23.9
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H73
    

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