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  • MPEC 2015-X138: 2015 XE261

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    M.P.E.C. 2015-X138                               Issued 2015 Dec. 11, 14:26 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 XE261
    
    Observations:
         K15XQ1E* C2015 12 07.46552 04 15 59.705+17 47 28.89         21.7 wLEX138F51
         K15XQ1E  C2015 12 07.48799 04 15 57.270+17 48 26.19         21.9 wLEX138F51
         K15XQ1E  C2015 12 07.49920 04 15 56.060+17 48 55.13         21.6 wLEX138F51
         K15XQ1E _C2015 12 08.48927104 14 25.832+18 33 20.77         21.7 RtEX138568
         K15XQ1E _C2015 12 08.49056104 14 25.690+18 33 24.36         21.4 RtEX138568
         K15XQ1E _C2015 12 08.49187304 14 25.535+18 33 27.85         21.2 RtEX138568
         K15XQ1E  C2015 12 11.19721 04 10 00.75 +20 48 25.6          20.9 RoEX138926
         K15XQ1E  C2015 12 11.20556 04 09 59.76 +20 48 53.6          21.5 RoEX138926
         K15XQ1E  C2015 12 11.21390 04 09 58.64 +20 49 21.1          21.2 RoEX138926
    
    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.
    
    Orbital elements:
    2015 XE261                                               Earth MOID = 0.0742 AU
    Epoch 2016 Jan. 13.0 TT = JDT 2457400.5                 MPC
    M 351.08517              (2000.0)            P               Q
    n   0.47365712     Peri.   55.56084     -0.66829472     -0.73168016
    a   1.6298964      Node    76.96800     +0.62928852     -0.65230007
    e   0.3935499      Incl.    7.92123     +0.39670913     -0.19786044
    P   2.08           H   24.8           G   0.15           U   8
    Residuals in seconds of arc
    151207 F51  0.1-  0.2+    151208 568  0.0   0.0     151211 926  0.3-  0.5-
    151207 F51  0.1+  0.2-    151208 568  0.0   0.0     151211 926  0.6+  0.1+
    151207 F51  0.0   0.0     151208 568  0.1-  0.0     151211 926  0.2-  0.4+
    
    Ephemeris:
    2015 XE261               a,e,i = 1.63, 0.39, 8                   q = 0.9885
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 11 11    04 34 25.2 +08 34 32   0.3192  1.2884   156.0    18.2    23.8
    ...
    2015 11 26    04 28 44.4 +11 49 06   0.2213  1.2052   169.3     8.7    22.5
    ...
    2015 12 04    04 20 44.6 +15 31 21   0.1790  1.1633   172.1     6.7    21.9
    ...
    2015 12 10    04 12 02.2 +19 46 14   0.1518  1.1335   167.3    11.0    21.7
    2015 12 11    04 10 20.1 +20 38 02   0.1477  1.1287   166.1    12.1    21.6
    2015 12 12    04 08 33.5 +21 32 50   0.1436  1.1239   164.8    13.3    21.6
    ...
    2015 12 18    03 56 07.5 +28 12 10   0.1219  1.0966   156.1    21.3    21.5
    ...
    2015 12 26    03 32 49.4 +40 45 13   0.09987 1.0637   141.8    34.9    21.4
    ...
    2016 01 10    01 15 57.2 +72 28 49   0.08430 1.0161   110.6    65.0    21.8
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-X138
    

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