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  • MPEC 2015-B76 : 2015 BR4

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    M.P.E.C. 2015-B76                                Issued 2015 Jan. 20, 14:28 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 BR4
    
    Observations:
         K15B04R* C2015 01 17.35036 04 58 03.480+04 21 15.13         21.5 wLEB076F51
         K15B04R  C2015 01 17.36434 04 58 02.712+04 21 01.49         21.6 wLEB076F51
         K15B04R  C2015 01 17.37819 04 58 01.938+04 20 48.05         21.7 wLEB076F51
         K15B04R  C2015 01 17.39199 04 58 01.183+04 20 34.27         21.7 wLEB076F51
         K15B04R KC2015 01 18.10367 04 57 26.42 +04 09 05.5          22.3 RoEB076291
         K15B04R KC2015 01 18.10801 04 57 26.20 +04 09 02.1          22.0 RoEB076291
         K15B04R KC2015 01 18.11234 04 57 25.91 +04 08 56.7          21.0 RoEB076291
         K15B04R  C2015 01 19.23069 04 56 33.762+03 51 29.47         22.1 wLEB076F51
         K15B04R  C2015 01 19.24277 04 56 33.184+03 51 18.26         21.9 wLEB076F51
         K15B04R  C2015 01 19.26694 04 56 31.996+03 50 55.93         21.7 wLEB076F51
         K15B04R KC2015 01 20.08685 04 55 56.55 +03 38 26.3          22.1 RoEB076291
         K15B04R KC2015 01 20.09263 04 55 56.30 +03 38 21.4          22.5 RoEB076291
         K15B04R KC2015 01 20.09843 04 55 56.00 +03 38 15.8          21.8 RoEB076291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer A. F. Tubbiolo.  Measurers T. H. Bressi,
        A. F. Tubbiolo.  1.8-m f/2.7 reflector + 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, P. Veres.  1.8-m Ritchey-Chretien + CCD.
    
    Orbital elements:
    2015 BR4                                                 Earth MOID = 0.4093 AU
    Epoch 2014 Dec. 9.0 TT = JDT 2457000.5                  MPC
    M 292.13310              (2000.0)            P               Q
    n   0.39768231     Peri.  288.84340     -0.92228894     +0.08077061
    a   1.8313803      Node   257.20628     +0.03418709     -0.95703876
    e   0.3054953      Incl.   22.80461     -0.38498619     -0.27848326
    P   2.48           H   19.9           G   0.15           U   8
    Residuals in seconds of arc
    150117 F51  0.1+  0.0     150118 291  0.1-  0.4+    150120 291  0.0   0.2-
    150117 F51  0.2+  0.1+    150118 291  1.0-  0.9-    150120 291  0.2+  0.1+
    150117 F51  0.0   0.2+    150119 F51  0.1+  0.2+    150120 291  0.4-  0.3-
    150117 F51  0.1+  0.1-    150119 F51  0.2+  0.1+
    150118 291  0.2-  0.3-    150119 F51  0.2+  0.1+
    
    Ephemeris:
    2015 BR4                 a,e,i = 1.83, 0.31, 23                  q = 1.2719
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2014 12 21    05 37 03.3 +14 03 26   0.7607  1.7376   169.7     5.8    21.0
    ...
    2015 01 05    05 12 23.1 +08 15 38   0.7509  1.6767   150.2    17.0    21.3
    ...
    2015 01 13    05 02 15.6 +05 36 23   0.7671  1.6441   139.5    22.9    21.5
    ...
    2015 01 19    04 56 43.9 +03 55 07   0.7866  1.6197   132.0    26.8    21.6
    2015 01 20    04 55 59.9 +03 39 51   0.7903  1.6156   130.9    27.4    21.7
    2015 01 21    04 55 19.2 +03 25 02   0.7942  1.6116   129.7    28.0    21.7
    ...
    2015 01 27    04 52 24.9 +02 05 35   0.8196  1.5873   123.0    31.4    21.8
    ...
    2015 02 04    04 51 35.1 +00 42 56   0.8576  1.5552   114.9    35.1    22.0
    ...
    2015 02 19    04 58 33.8 -00 54 59   0.9330  1.4967   102.3    40.2    22.2
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-B76
    

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