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  • MPEC 2020-J66 : 2017 CO5

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    M.P.E.C. 2020-J66                                  Issued 2020 May 14, 15:00 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
    
                                    2017 CO5                                 
    
    
                               Revision to MPEC 2017-C73                            
    
    Additional Observations:
         K17C05O  C2019 09 26.44318200 10 40.054+20 01 14.19         23.59GVEJ066T12
         K17C05O  C2019 09 26.45049000 10 39.329+20 01 15.51         23.61GVEJ066T12
         K17C05O  C2019 09 27.48498200 08 59.115+20 04 20.49         23.59GVEJ066T12
         K17C05O  C2019 09 27.49777700 08 57.841+20 04 22.62         23.60GVEJ066T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. J. Tholen, D. 
       Hung, M.-T. Hui, D. Fohring.  Measurer D. J. Tholen.  2.24-m f/10.1 
       reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    190926 T12  1.4-  1.8-    190927 T12  1.4-  1.8-    MPO409579   -0.00 days
    
    Orbital elements:
    2017 CO5                                                 Earth MOID = 0.3142 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
    M 355.37878              (2000.0)            P               Q
    n   0.28861191     Peri.  147.62356     -0.73040762     -0.67571665
    a   2.2677398      Node   348.15232     +0.47631260     -0.39945540
    e   0.4441540      Incl.   29.00673     +0.48952121     -0.61955016
    P   3.41           H   20.1           G   0.15           U   1
    Residuals in seconds of arc
    170202 F51  0.0   0.1-    170219 474  0.0   0.1+    170302 G45  0.5-  0.2-
    170202 F51  0.0   0.0     170219 474  0.1+  0.0     170302 G45  0.6+  0.3+
    170202 F51  0.0   0.0     170222 G45  0.2-  0.2-    170303 807  0.0   0.0
    170202 F51  0.0   0.0     170222 G45  0.4-  0.2+    170303 807  0.1-  0.0
    170203 291  0.4-  0.0     170222 G45  0.4+  0.6-    170303 807  0.1+  0.1+
    170203 291  0.2-  0.2-    170222 G45  0.1+  0.3+    170306 807  0.1+  0.6+
    170203 291  0.1-  0.1-    170222 G45  0.2-  0.2+    170306 807  0.1+  0.1+
    170203 568  0.1-  0.1-    170222 G45  0.2-  0.1-    170306 807  0.6-  0.2-
    170203 568  0.1-  0.1-    170222 F51  0.1+  0.1+    170309 H21  0.6+  0.0
    170203 568  0.1-  0.0     170222 F51  0.0   0.1+    170309 H21  0.5+  0.2-
    170205 291  0.0   0.1+    170222 F51  0.1+  0.1+    170309 H21  0.4+  0.1-
    170205 291  0.1+  0.2+    170222 F51  0.2+  0.1+    170318 807  0.2-  0.1+
    170205 291  0.2+  0.1+    170222 F51  0.1+  0.1+    170318 807  0.0   0.1-
    170207 291  0.0   0.2+    170222 F51  0.1+  0.1+    170318 807  0.0   0.0
    170207 291  0.3-  0.2+    170222 F51  0.1+  0.2+    170328 474  0.1-  0.2+
    170207 291  0.1-  0.2+    170223 H21  1.2-  1.0-    170328 474  0.1-  0.3+
    170208 291  0.0   0.0     170223 H21  1.4-  1.3-    170328 474  0.1-  0.2+
    170208 291  0.0   0.1+    170223 H21  1.5-  1.2-    170328 474  0.0   0.2+
    170208 291  0.1-  0.1+    170302 807  0.2-  0.1+    170404 F51  0.1+  0.1+
    170209 F51  0.1+  0.0     170302 807  0.3-  0.1+    170404 F51  0.2+  0.0
    170209 F51  0.1-  0.0     170302 807  0.2-  0.0     170404 F51  0.2+  0.1-
    170209 F51  0.1-  0.1-    170302 703  0.8+  0.8-    170404 F51  0.2+  0.0
    170209 F51  0.2-  0.0     170302 703  0.2-  0.2+    170420 807  0.2-  0.0
    170210 695  0.8+  0.3+    170302 703  0.5+  0.7-    170420 807  0.0   0.0
    170210 695  0.2-  0.4+    170302 703  0.8+  0.1+    170420 807  0.1+  0.2-
    170210 695  0.7-  0.3+    170302 G45  0.2+  0.3+    190926 T12  0.0   0.0
    170219 807  0.2-  0.1-    170302 G45  0.2+  0.2+    190926 T12  0.0   0.0
    170219 807  0.2-  0.2+    170302 G45  0.1+  0.3+    190927 T12  0.0   0.0
    170219 807  0.0   0.0     170302 G45  0.4+  0.0     190927 T12  0.0   0.0
    170219 474  0.1-  0.1+    170302 G45  0.2+  0.3-
    170219 474  0.1-  0.1+    170302 G45  0.1-  0.2+
    
    Ephemeris:
    2017 CO5                 a,e,i = 2.27, 0.44, 29                  q = 1.2605
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 04 14    03 29 54.6 +39 07 27   2.0202  1.4087    40.0    27.3    23.6
    ...
    2020 04 29    04 31 29.2 +40 04 38   2.0017  1.3501    37.5    27.0    23.5
    ...
    2020 05 07    05 06 13.1 +39 52 06   1.9944  1.3239    36.3    26.8    23.4
    ...
    2020 05 13    05 32 37.7 +39 20 12   1.9909  1.3069    35.5    26.7    23.4
    2020 05 14    05 37 02.1 +39 12 57   1.9905  1.3043    35.3    26.6    23.4
    2020 05 15    05 41 26.5 +39 05 09   1.9902  1.3017    35.2    26.6    23.4
    ...
    2020 05 21    06 07 45.2 +38 06 35   1.9896  1.2880    34.4    26.3    23.3
    ...
    2020 05 29    06 42 09.0 +36 18 03   1.9926  1.2738    33.3    25.9    23.3
    ...
    2020 06 13    07 42 51.2 +31 30 18   2.0118  1.2609    31.4    24.8    23.3
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-J66
    


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