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  • MPEC 2019-V57 : 2017 UC45

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    M.P.E.C. 2019-V57                              Issued 2019 November 4, 15:56 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 UC45                                
    
    
                               Revision to MPEC 2017-V19                            
    
    Additional Observations:
         K17U45C  C2019 10 25.41399400 31 30.328-11 38 15.16         23.38GVEV057T12
         K17U45C  C2019 10 25.42494100 31 28.917-11 38 22.47         23.43GVEV057T12
         K17U45C KC2019 10 29.35827900 23 30.313-12 18 46.51         23.46GVEV057T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. Fohring, D. Hung. 
        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 (or two decimals in degrees), reference and Delta-T
    191025 T12 0.12+ 0.03+    191029 T12 0.11+ 0.02+    MPO438039   +0.17 days
    
    Orbital elements:
    2017 UC45                                                Earth MOID = 0.0542 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 Veres
    M 216.96585              (2000.0)            P               Q
    n   0.47298157     Peri.   38.94941     -0.78346159     -0.61360827
    a   1.6314480      Node   102.91846     +0.54195049     -0.75208198
    e   0.5466384      Incl.    5.79126     +0.30410131     -0.24053602
    P   2.08           H   22.1           G   0.15           U   2
    Residuals in seconds of arc
    171025 G96  0.1+  0.7-    171113 474  0.0   0.1-    171123 G96  0.3+  0.1+
    171025 G96  0.9+  1.4-    171113 474  0.1+  0.0     171123 G96  0.3+  0.2+
    171029 F51  0.0   0.3+    171113 474  0.2+  0.1+    171127 807  0.3+  0.0
    171029 F51  0.3-  0.2+    171113 474  0.2+  0.1+    171127 807  0.1+  0.0
    171029 F51  0.1-  0.3+    171115 807  0.3+  0.2+    171127 807  0.3+  0.1-
    171030 291  0.1-  0.2+    171115 807  0.6+  0.1+    171127 691  0.8-  0.1-
    171030 291  0.1-  0.3+    171115 807  0.3+  0.2+    171127 691  1.2-  0.3+
    171030 291  0.2-  0.2+    171115 474  0.2+  0.0     171127 691  1.1-  0.2-
    171031 H21  0.1+  0.3-    171115 474  0.0   0.0     171206 807  0.1-  0.2+
    171031 H21  0.0   0.1-    171115 474  0.0   0.2-    171206 807  0.4+  0.1-
    171031 H21  0.3-  0.1+    171120 691  0.5-  0.1+    171206 807  0.1-  0.0
    171106 807  0.1+  0.1+    171120 691  0.8-  0.1+    171207 807  0.0   0.1-
    171106 807  0.0   0.0     171120 691  0.9-  0.2+    171207 807  0.3+  0.5-
    171106 807  0.1+  0.0     171123 807  0.0   0.3-    171207 807  0.3+  0.1-
    171110 474  0.8+  0.5-    171123 807  0.0   0.2-    191025 T12  0.0   0.0
    171110 474  0.3+  0.2-    171123 807  0.1+  0.3-    191025 T12  0.0   0.0
    171110 474  0.1-  0.0     171123 G96  0.6+  0.0     191029 T12  0.0   0.0
    171110 474  0.3+  0.3+    171123 G96  0.3+  0.1+
    
    Ephemeris:
    2017 UC45                a,e,i = 1.63, 0.55, 6                   q = 0.7396
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2019 10 05    01 11 49.8 -06 50 20   0.7661  1.7541   166.4     7.7    23.3
    ...
    2019 10 20    00 42 46.6 -10 31 44   0.6899  1.6486   155.5    14.5    23.2
    ...
    2019 10 28    00 26 13.8 -12 05 32   0.6708  1.5892   144.7    21.2    23.3
    ...
    2019 11 03    00 14 36.4 -12 56 28   0.6647  1.5434   136.4    26.3    23.3
    2019 11 04    00 12 47.3 -13 03 09   0.6643  1.5356   135.1    27.1    23.4
    2019 11 05    00 11 00.6 -13 09 17   0.6640  1.5278   133.7    28.0    23.4
    ...
    2019 11 11    00 01 17.4 -13 34 57   0.6647  1.4804   125.8    32.9    23.4
    ...
    2019 11 19    23 51 15.2 -13 40 22   0.6703  1.4155   115.8    38.9    23.5
    ...
    2019 12 04    23 42 16.3 -12 33 09   0.6835  1.2890    99.5    48.9    23.7
    
    A. U. Tomatic                (C) Copyright 2019 MPC           M.P.E.C. 2019-V57
    


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