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  • MPEC 2015-X121: 2015 XB169

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    M.P.E.C. 2015-X121                               Issued 2015 Dec.  9, 22:47 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 XB169
    
    Observations:
         K15XG9B* C2015 12 06.46060 04 49 29.728+19 24 14.72         22.0 wLEX121F51
         K15XG9B  C2015 12 06.47414 04 49 30.690+19 23 45.06         22.1 wLEX121F51
         K15XG9B  C2015 12 06.48769 04 49 31.633+19 23 15.40         21.8 wLEX121F51
         K15XG9B _C2015 12 07.50184404 50 57.992+18 46 09.60         21.7 RtEX121568
         K15XG9B _C2015 12 07.50321604 50 58.092+18 46 06.54         21.8 RtEX121568
         K15XG9B _C2015 12 07.50456104 50 58.190+18 46 03.46         21.7 RtEX121568
         K15XG9B  C2015 12 09.45915 04 53 50.379+17 32 16.08         22.3 wLEX121F51
         K15XG9B  C2015 12 09.48452 04 53 52.270+17 31 16.74         22.3 wLEX121F51
         K15XG9B  C2015 12 09.49724 04 53 53.239+17 30 47.22         22.3 wLEX121F51
    
    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.
    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 XB169                                               Earth MOID = 0.1985 AU
    Epoch 2016 Jan. 13.0 TT = JDT 2457400.5                 MPC
    M   1.53150              (2000.0)            P               Q
    n   0.26578306     Peri.  213.97677     -0.22596264     -0.96597807
    a   2.3958034      Node   249.36211     +0.92097488     -0.16976201
    e   0.5125026      Incl.    7.72586     +0.31740536     -0.19510825
    P   3.71           H   24.5           G   0.15           U   8
    Residuals in seconds of arc
    151206 F51  0.1-  0.0     151207 568  0.3-  0.2-    151209 F51  0.1-  0.1+
    151206 F51  0.2+  0.0     151207 568  0.3-  0.1-    151209 F51  0.0   0.1-
    151206 F51  0.1+  0.0     151207 568  0.3-  0.2-    151209 F51  0.2+  0.1+
    
    Ephemeris:
    2015 XB169               a,e,i = 2.40, 0.51, 8                   q = 1.1679
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 11 09    04 16 02.8 +29 55 43   0.3715  1.3407   157.1    16.7    23.9
    ...
    2015 11 24    04 33 25.4 +25 40 50   0.2852  1.2692   169.9     7.8    22.8
    ...
    2015 12 02    04 43 25.9 +21 56 29   0.2517  1.2374   176.9     2.4    22.2
    ...
    2015 12 08    04 51 42.3 +18 27 42   0.2324  1.2170   175.7     3.5    22.1
    2015 12 09    04 53 10.0 +17 49 56   0.2297  1.2139   174.8     4.2    22.1
    2015 12 10    04 54 39.5 +17 11 25   0.2271  1.2109   173.8     5.0    22.1
    ...
    2015 12 16    05 04 14.4 +13 07 53   0.2146  1.1949   168.0     9.9    22.2
    ...
    2015 12 24    05 18 55.8 +07 29 06   0.2055  1.1791   160.3    16.3    22.3
    ...
    2016 01 08    05 51 44.0 -01 45 33   0.2100  1.1680   148.7    25.9    22.6
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-X121
    

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