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  • MPEC 2015-X147: 2015 XO261

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    M.P.E.C. 2015-X147                               Issued 2015 Dec. 11, 23:57 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
    
                                      2015 XO261
    
    Observations:
         K15XQ1O* C2015 12 09.25689 00 03 41.158+06 43 24.72         21.7 wLEX147F51
         K15XQ1O  C2015 12 09.26914 00 03 42.492+06 44 03.11         21.7 wLEX147F51
         K15XQ1O  C2015 12 09.28137 00 03 43.856+06 44 41.35         21.5 wLEX147F51
         K15XQ1O  C2015 12 09.29371 00 03 45.237+06 45 20.54         21.4 wLEX147F51
         K15XQ1O _C2015 12 10.21027100 05 37.847+07 33 23.77         20.5 RtEX147568
         K15XQ1O _C2015 12 10.21133400 05 37.969+07 33 27.11         20.5 RtEX147568
         K15XQ1O _C2015 12 10.21239200 05 38.092+07 33 30.42         20.7 RtEX147568
         K15XQ1O  C2015 12 11.06626800 07 24.56 +08 17 58.5          21.6 VtEX147H01
         K15XQ1O  C2015 12 11.06968200 07 24.96 +08 18 09.1          21.9 VtEX147H01
         K15XQ1O  C2015 12 11.10544000 07 29.15 +08 20 01.0          22.0 VtEX147H01
         K15XQ1O  C2015 12 11.11017 00 07 29.78 +08 20 17.0          21.3 RoEX147926
         K15XQ1O  C2015 12 11.11042400 07 29.73 +08 20 16.5          22.0 VtEX147H01
         K15XQ1O  C2015 12 11.12016 00 07 30.97 +08 20 48.4          21.3 RoEX147926
         K15XQ1O  C2015 12 11.12699 00 07 31.76 +08 21 09.1          21.2 RoEX147926
         K15XQ1O  C2015 12 11.79815 00 08 57.27 +08 56 00.2          20.5 RtEX147G36
         K15XQ1O  C2015 12 11.81631 00 08 59.42 +08 56 56.1          20.4 RtEX147G36
         K15XQ1O  C2015 12 11.83537 00 09 01.67 +08 57 55.9          21.0 RtEX147G36
    
    Observer details:
    568 Mauna Kea.  Observers R. J. Wainscoat, L. Wells.  Measurers M. Micheli,
        R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + 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 B. Gibson, T. Goggia, N. Primak,
        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.
    G36 Calar Alto-CASADO.  Observers S. Hellmich, S. Mottola.  1.23-m f/8
        reflector + CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
    
    Orbital elements:
    2015 XO261                                               Earth MOID = 0.1446 AU
    Epoch 2016 Jan. 13.0 TT = JDT 2457400.5                 MPC
    M  15.10289              (2000.0)            P               Q
    n   0.47171697     Peri.   11.06439     +0.46137698     -0.87251196
    a   1.6343625      Node    51.66586     +0.79754509     +0.32848968
    e   0.3080897      Incl.   11.82867     +0.38865551     +0.36168688
    P   2.09           H   21.3           G   0.15           U   7
    Residuals in seconds of arc
    151209 F51  0.1-  0.2-    151210 568  0.2-  0.3-    151211 926  0.0   0.2+
    151209 F51  0.4-  0.4-    151211 H01  0.4-  0.4-    151211 926  0.1-  0.5-
    151209 F51  0.3-  0.6-    151211 H01  0.3-  0.4-    151211 G36  0.3+  0.1-
    151209 F51  0.2-  0.2-    151211 H01  0.2-  0.2-    151211 G36  0.0   0.7-
    151210 568  0.3-  0.3-    151211 926  0.4-  0.1-    151211 G36  0.4-  0.1-
    151210 568  0.3-  0.3-    151211 H01  0.2-  0.3-
    
    Ephemeris:
    2015 XO261               a,e,i = 1.63, 0.31, 12                  q = 1.1308
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 11 11    23 27 26.7 -17 54 09   0.3126  1.1640   116.5    49.6    21.0
    ...
    2015 11 26    23 41 22.4 -05 03 18   0.3209  1.1399   110.5    54.2    21.1
    ...
    2015 12 04    23 53 48.1 +02 04 46   0.3309  1.1331   108.1    55.8    21.2
    ...
    2015 12 10    00 05 11.8 +07 22 27   0.3411  1.1310   106.7    56.5    21.3
    2015 12 11    00 07 16.0 +08 14 40   0.3431  1.1309   106.5    56.6    21.3
    2015 12 12    00 09 23.1 +09 06 38   0.3451  1.1308   106.2    56.7    21.3
    ...
    2015 12 18    00 23 06.5 +14 11 31   0.3585  1.1321   105.2    57.0    21.4
    ...
    2015 12 26    00 44 03.8 +20 34 05   0.3800  1.1378   104.2    56.9    21.5
    ...
    2016 01 10    01 31 31.7 +30 49 47   0.4321  1.1600   103.1    55.7    21.8
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-X147
    

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