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  • MPEC 2018-D34 : 2016 CO247

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    M.P.E.C. 2018-D34                                Issued 2018 Feb. 21, 11:58 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
    
                                      2016 CO247
    
                              Revision to MPEC 2016-C197
    
    Additional Observations:
         K16CO7O  C2018 01 15.66577013 15 07.355-28 16 29.68         24.62GUED034T09
         K16CO7O  C2018 01 15.66829313 15 07.448-28 16 31.97         24.56GUED034T09
         K16CO7O  C2018 01 15.67083913 15 07.540-28 16 34.25         24.07GUED034T09
         K16CO7O  C2018 01 16.66355913 15 44.428-28 31 32.80         24.22GUED034T09
         K16CO7O  C2018 01 16.66600113 15 44.514-28 31 34.97         24.23GUED034T09
         K16CO7O  C2018 01 16.66843613 15 44.598-28 31 37.17         24.54GUED034T09
    
    Observer details:
    T09 Mauna Kea-UH/Tholen NEO Follow-Up (Subaru).  Observers D. J. Tholen,
        S. S. Sheppard.  Measurer D. J. Tholen.  8.2-m f/2.2 reflector.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    180115 T09 23.6-  6.1+    180116 T09 23.8-  6.1+    MPO373622   +0.024 day
    
    Orbital elements:
    2016 CO247                                          PHA, Earth MOID = 0.0165 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 156.74467              (2000.0)            P               Q
    n   0.58247198     Peri.   90.28420     +0.87658570     -0.38307339
    a   1.4199924      Node   292.25446     +0.20882394     +0.84811440
    e   0.5135242      Incl.   18.34504     +0.43357823     +0.36600100
    P   1.69           H   20.5           G   0.15           U   3
    Residuals in seconds of arc
    160212 F51  0.1+  0.1-    160217 691 (2.4-  1.0+)   160302 291  0.3-  0.1+
    160212 F51  0.2-  0.0     160217 691  0.7-  1.2+    160302 291  0.0   0.0
    160212 F51  0.1-  0.1+    160218 807  0.2+  0.1-    160302 291  0.4-  1.0-
    160213 568  0.0   0.0     160218 807  0.3+  0.3+    160303 291 (2.6-  0.3+)
    160214 807  0.3-  0.1-    160218 807  0.1+  0.4+    160303 291  0.5-  0.0
    160214 807  0.2+  0.0     160225 695  0.2+  0.6+    160303 291  0.3+  0.4+
    160214 807  0.1+  0.2+    160225 695  1.2-  1.0-    160314 807  0.3+  0.0
    160215 807  0.2-  0.2+    160225 695  0.7+  0.2+    160314 807  0.3+  0.3+
    160215 807  0.4+  0.4-    160226 291  0.2-  0.0     160314 807  0.1+  0.2+
    160215 807  0.5+  0.4-    160226 291  0.4+  0.1+    180115 T09  0.0   0.0
    160215 691  0.7+  1.4-    160226 291  0.6+  0.1+    180115 T09  0.0   0.0
    160215 691  1.3+  0.2-    160229 291  0.0   0.3+    180115 T09  0.0   0.0
    160217 807  0.0   0.0     160229 291  0.0   0.3+    180116 T09  0.0   0.0
    160217 807  0.0   0.1+    160301 291  0.1-  0.2-    180116 T09  0.0   0.0
    160217 807  0.1+  0.1-    160301 291  0.3+  0.6-    180116 T09  0.0   0.0
    160217 691  1.4-  0.5-    160301 291  0.1+  0.5+
    
    Ephemeris:
    2016 CO247               a,e,i = 1.42, 0.51, 18                  q = 0.6908
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 01 22    13 18 33.3 -29 50 54   1.6894  1.9827    91.9    29.7    24.4
    ...
    2018 02 06    13 21 22.5 -33 21 36   1.5526  2.0294   103.9    28.1    24.2
    ...
    2018 02 14    13 19 12.1 -35 02 38   1.4819  2.0511   110.7    26.8    24.1
    ...
    2018 02 20    13 15 37.0 -36 10 16   1.4315  2.0659   116.0    25.5    24.0
    2018 02 21    13 14 50.9 -36 20 42   1.4234  2.0682   116.9    25.2    24.0
    2018 02 22    13 14 01.8 -36 30 51   1.4154  2.0705   117.8    25.0    24.0
    ...
    2018 02 28    13 08 04.6 -37 25 22   1.3698  2.0837   123.2    23.4    23.9
    ...
    2018 03 08    12 57 25.2 -38 17 32   1.3165  2.0994   130.3    21.1    23.7
    ...
    2018 03 23    12 30 40.8 -38 30 45   1.2474  2.1229   141.9    16.8    23.5
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-D34
    

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