• Processing (Info)

  • MPEC 2007-X57 : 2007 XJ20

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    M.P.E.C. 2007-X57                                Issued 2007 Dec. 14, 14:06 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 http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       2007 XJ20
    
    Observations:
         K07X20J* C2007 12 13.26924 04 36 12.23 +30 08 40.3          20.2   EX057704
         K07X20J  C2007 12 13.28221 04 36 10.01 +30 08 43.0          20.3   EX057704
         K07X20J  C2007 12 13.29519 04 36 08.01 +30 08 45.3          20.3   EX057704
         K07X20J  C2007 12 13.30818 04 36 05.80 +30 08 47.9          20.5   EX057704
         K07X20J  C2007 12 14.01904 04 34 11.30 +30 11 06.2          19.9 R EX057204
         K07X20J  C2007 12 14.05333 04 34 05.63 +30 11 12.2                 EX057204
         K07X20J 9C2007 12 14.27593 04 33 30.09 +30 11 57.7          19.8 R EX057673
         K07X20J 9C2007 12 14.27951 04 33 29.50 +30 11 58.4                 EX057673
         K07X20J 9C2007 12 14.28368 04 33 28.80 +30 11 58.6                 EX057673
         K07X20J 9C2007 12 14.28993 04 33 27.79 +30 12 00.1                 EX057673
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    673 Table Mountain Observatory, Wrightwood.  Observer H. Rhoades.  0.61-m f/16
        Cassegrain + CCD.
    704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
        R. Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
        f/2.15 reflector + CCD.
    
    Orbital elements:
    2007 XJ20                                                Earth MOID = 0.1398 AU
    Epoch 2007 Oct. 27.0 TT = JDT 2454400.5                 MPC
    M 283.49763              (2000.0)            P               Q
    n   0.42178245     Peri.  150.16688     -0.88959827     +0.43187580
    a   1.7609366      Node    56.16112     -0.44643109     -0.75339931
    e   0.6146917      Incl.   10.30984     -0.09651012     -0.49585559
    P   2.34           H   18.6           G   0.15           U   9
    Residuals in seconds of arc
    071213 704  0.2+  0.1+    071214 204  0.2+  0.0     071214 673  0.1-  0.4-
    071213 704  0.9-  0.2+    071214 204  0.2-  0.1-    071214 673  0.3+  0.0
    071213 704  0.9+  0.1-    071214 673  0.1-  0.2+
    071213 704  0.1-  0.1-    071214 673  0.0   0.2+
    
    Ephemeris:
    2007 XJ20                a,e,i = 1.76, 0.61, 10                  q = 0.6785
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2007 12 06    04 54.73   +29 37.2    0.869    1.850   172.6     3.9    20.0
    2007 12 11    04 42.20   +30 00.2    0.833    1.812   170.6     5.1    19.9
    2007 12 16    04 28.82   +30 16.9    0.805    1.773   164.3     8.6    20.0
    2007 12 21    04 15.10   +30 26.4    0.784    1.733   156.9    12.8    20.0
    2007 12 26    04 01.55   +30 28.6    0.770    1.692   149.3    17.3    20.1
    2007 12 31    03 48.69   +30 24.6    0.762    1.650   141.7    21.7    20.1
    2008 01 05    03 36.95   +30 16.0    0.759    1.607   134.2    26.0    20.2
    2008 01 10    03 26.70   +30 04.9    0.760    1.564   127.1    30.1    20.3
    2008 01 15    03 18.15   +29 53.7    0.764    1.519   120.3    34.0    20.3
    2008 01 20    03 11.37   +29 44.1    0.770    1.474   113.8    37.6    20.4
    2008 01 25    03 06.34   +29 37.7    0.776    1.427   107.8    41.1    20.4
    2008 01 30    03 03.00   +29 35.5    0.783    1.380   102.1    44.3    20.5
    2008 02 04    03 01.25   +29 38.1    0.788    1.332    96.7    47.3    20.5
    2008 02 09    03 00.96   +29 45.7    0.791    1.283    91.8    50.2    20.5
    2008 02 14    03 02.02   +29 58.3    0.792    1.234    87.1    53.0    20.5
    2008 02 19    03 04.27   +30 15.6    0.789    1.184    82.7    55.9    20.5
    2008 02 24    03 07.56   +30 37.1    0.783    1.134    78.6    58.8    20.5
    
    Timothy B. Spahr             (C) Copyright 2007 MPC           M.P.E.C. 2007-X57
    

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