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  • MPEC 2015-B69 : 2015 BF4

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    M.P.E.C. 2015-B69                                Issued 2015 Jan. 19, 20:19 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 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
    
                                       2015 BF4
    
    Observations:
         K15B04F* C2015 01 16.23090 02 41 29.941+06 39 59.43         21.2 wLEB069F51
         K15B04F  C2015 01 16.24316 02 41 32.518+06 40 04.66         21.3 wLEB069F51
         K15B04F  C2015 01 16.26761 02 41 37.705+06 40 15.78         21.3 wLEB069F51
         K15B04F KC2015 01 17.05423502 44 30.73 +06 46 07.4          21.0 VuEB069H21
         K15B04F KC2015 01 17.05958002 44 31.55 +06 46 31.3          20.6 RtEB069W86
         K15B04F KC2015 01 17.06325002 44 32.67 +06 46 11.7          21.2 VuEB069H21
         K15B04F KC2015 01 17.06474502 44 32.66 +06 46 33.6          20.5 RtEB069W86
         K15B04F KC2015 01 17.06990802 44 33.77 +06 46 35.9          20.6 RtEB069W86
         K15B04F KC2015 01 17.07199602 44 34.55 +06 46 15.5          21.4 VuEB069H21
         K15B04F  C2015 01 17.12972802 44 47.22 +06 46 43.3          20.3 RtEB069H01
         K15B04F  C2015 01 17.13297302 44 47.91 +06 46 44.8          20.7 RtEB069H01
         K15B04F  C2015 01 17.14387302 44 50.24 +06 46 49.8          20.6 RtEB069H01
         K15B04F  C2015 01 17.15317202 44 52.24 +06 46 54.0          20.5 RtEB069H01
         K15B04F  C2015 01 18.71824 02 50 39.55 +06 58 56.7          20.6 VMEB069033
         K15B04F  C2015 01 18.73415 02 50 43.00 +06 59 04.1          20.7 VMEB069033
         K15B04F  C2015 01 18.80929 02 50 59.36 +06 59 39.8          20.2 VMEB069033
         K15B04F  C2015 01 18.82519 02 51 02.81 +06 59 46.8          20.3 VMEB069033
         K15B04F KC2015 01 19.01289602 51 45.10 +07 01 18.6          21.0 VuEB069H21
         K15B04F KC2015 01 19.02268802 51 47.20 +07 01 24.0          21.2 VuEB069H21
         K15B04F KC2015 01 19.03224802 51 49.29 +07 01 28.1          21.2 VuEB069H21
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observer B. Stecklum.  1.34-m
        f/4 Schmidt + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
        A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
        H. Flewelling, M. Huber, E. Magnier, E. Schunova, R. Wainscoat, C. Waters,
        R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observer W. H. Ryan.  2.4-m f/8.9
        reflector + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers L. Buzzi, T. Linder, S. Foglia, T. Vorobjov.  0.81-m f/4.0
        astrograph + CCD.
    W86 Cerro Tololo-LCOGT B.  Observer T. Lister.  1.0-m f/8 Ritchey-Chretien
        + CCD.
    
    Orbital elements:
    2015 BF4                                                 Earth MOID = 0.2023 AU
    Epoch 2014 Dec. 9.0 TT = JDT 2457000.5                  MPC
    M 350.06050              (2000.0)            P               Q
    n   0.32991811     Peri.  207.49443     +0.06400564     -0.99417969
    a   2.0742700      Node   238.95227     +0.93317318     +0.09040131
    e   0.4306184      Incl.    5.80549     +0.35368219     -0.05860338
    P   2.99           H   20.4           G   0.15           U   8
    Residuals in seconds of arc
    150116 F51  0.5+  0.3+    150117 W86  0.5+  0.1+    150118 033  0.5+  0.1-
    150116 F51  0.2+  0.0     150117 H21  0.4+  0.2+    150118 033  0.6+  0.3+
    150116 F51  0.4+  0.2+    150117 H01  0.3+  0.0     150118 033  0.4+  0.2-
    150117 H21  0.2+  0.2+    150117 H01  0.3+  0.1+    150119 H21  0.4+  0.1-
    150117 W86  0.4+  0.2+    150117 H01  0.2+  0.1+    150119 H21  0.0   0.7+
    150117 H21  0.3+  0.4+    150117 H01  0.4+  0.1+    150119 H21  0.3+  0.3+
    150117 W86  0.4+  0.2+    150118 033  0.7+  0.0
    
    Ephemeris:
    2015 BF4                 a,e,i = 2.07, 0.43, 6                   q = 1.1811
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2014 12 20    01 14 28.4 +04 43 06   0.4145  1.1976   111.1    50.0    20.7
    ...
    2015 01 04    01 58 57.1 +05 22 28   0.4346  1.1818   106.4    53.0    20.9
    ...
    2015 01 12    02 26 16.6 +06 09 46   0.4494  1.1817   104.9    53.5    21.0
    ...
    2015 01 18    02 47 59.6 +06 53 33   0.4630  1.1855   104.2    53.6    21.1
    2015 01 19    02 51 41.9 +07 01 22   0.4655  1.1864   104.1    53.6    21.1
    2015 01 20    02 55 25.5 +07 09 18   0.4681  1.1875   104.0    53.5    21.1
    ...
    2015 01 26    03 18 10.6 +07 58 49   0.4852  1.1955   103.6    53.2    21.2
    ...
    2015 02 03    03 49 13.8 +09 06 43   0.5127  1.2109   103.3    52.4    21.3
    ...
    2015 02 18    04 47 49.5 +11 03 21   0.5812  1.2533   102.9    50.2    21.6
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-B69
    

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