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  • MPEC 2020-P84 : 2016 QE45

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    M.P.E.C. 2020-P84                               Issued 2020 August 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
    
                                    2016 QE45                                
    
    
                               Revision to MPEC 2016-R31                            
    
    Additional Observations:
         K16Q45E  C2020 08 13.44581120 09 25.352-29 57 44.45         23.52GVEP084T14
         K16Q45E  C2020 08 13.44814520 09 25.023-29 57 44.91         23.61GVEP084T14
         K16Q45E  C2020 08 13.45048020 09 24.696-29 57 45.26         23.43GVEP084T14
         K16Q45E KC2020 08 14.41510720 07 14.567-30 00 28.92         23.65GVEP084T14
         K16Q45E  C2020 08 14.41744420 07 14.241-30 00 29.19         23.44GVEP084T14
    
    Observer details:
    T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT).  Observer C. Wipper.  Measurer
        D. J. Tholen.  3.6-m f/4.1 reflector + MegaCam.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    200813 T14 0.08+ 0.02+    200814 T14 0.08+ 0.01+    MPO389291   +0.12 days
    
    Orbital elements:
    2016 QE45                                           PHA, Earth MOID = 0.0063 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
    M 169.55424              (2000.0)            P               Q
    n   0.70187083     Peri.   95.68594     -0.41630347     -0.90880798
    a   1.2540011      Node    18.98882     +0.79708263     -0.37937166
    e   0.5259211      Incl.    4.85852     +0.43743652     -0.17362372
    P   1.40           H   21.7           G   0.15           U   3
    Residuals in seconds of arc
    160830 F51  0.1+  0.1+    160904 291  0.1+  0.5+    160925 F51  0.1+  0.3+
    160830 F51  0.0   0.0     160904 291  0.0   0.3+    160925 F51  0.0   0.2+
    160830 F51  0.1+  0.1+    160904 291  0.4-  0.2+    160925 F51  0.0   0.2+
    160830 F51  0.1+  0.0     160908 F51  0.1+  0.1+    160925 204  0.1+  0.0
    160831 291  0.3-  0.4+    160908 F51  0.1-  0.1+    160925 204  0.2+  0.2+
    160831 291  0.1+  0.1+    160908 F51  0.0   0.0     160925 204  0.2+  0.0
    160831 291  0.5-  0.3+    160908 474  0.1-  0.4-    160926 291  0.1-  0.2-
    160831 033  0.4-  0.1+    160908 474  0.2-  0.0     160926 291  0.2-  0.0
    160831 033  0.3+  0.3+    160908 474  0.3+  0.2-    160926 291  0.4-  0.3-
    160831 033  0.1+  0.4+    160909 807  0.0   0.3-    160930 691  0.6-  0.3-
    160901 033  0.3-  0.1+    160909 807  0.2+  0.0     160930 691  0.5-  0.1+
    160901 033  0.1+  0.1-    160909 807  0.2+  0.1+    160930 691  0.2-  1.1-
    160901 033  0.2-  0.2+    160909 691  0.1+  0.6-    160930 F51  0.4+  0.1+
    160901 033  0.1+  0.1+    160909 691  0.3+  0.1+    160930 F51  0.1+  0.1-
    160901 033  0.5+  0.1+    160909 691  0.4-  0.4-    160930 F51  0.2+  0.1-
    160901 033  0.7+  0.2+    160910 691  0.6-  0.2+    161001 691  0.2-  0.8-
    160901 033  0.3-  0.5+    160910 691  0.2+  0.6-    161001 691  0.3+  0.4-
    160901 033  0.2+  0.3+    160910 691  0.5-  0.6+    161001 691  0.4-  0.5-
    160901 H21  0.6-  0.6-    160920 807  0.1-  0.0     161002 691  0.7-  0.1-
    160901 H21  0.4-  0.9-    160920 807  0.1-  0.0     161002 691  0.2-  0.2+
    160901 H21  0.0   0.6-    160920 807  0.1+  0.0     161002 691  0.2-  0.0
    160902 H21  0.1-  0.4-    160924 291  0.2-  0.1+    200813 T14  0.0   0.0
    160902 H21  0.0   0.3-    160924 291  0.0   0.2+    200813 T14  0.0   0.0
    160902 H21  0.2+  0.3-    160924 291  0.2-  0.2+    200813 T14  0.0   0.0
    160904 807  0.0   0.2-    160925 291  0.3-  0.1+    200814 T14  0.0   0.1-
    160904 807  0.3-  0.5-    160925 291  0.3-  0.1+    200814 T14  0.0   0.0
    160904 807  0.2-  0.3-    160925 291  0.1+  0.2+
    
    Ephemeris:
    2016 QE45                a,e,i = 1.25, 0.53, 5                   q = 0.5945
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 07 15    21 16 28.0 -26 07 52   0.9162  1.8942   157.1    12.1    23.6
    ...
    2020 07 30    20 44 02.7 -28 34 42   0.8622  1.8701   169.8     5.5    23.2
    ...
    2020 08 07    20 24 36.8 -29 30 11   0.8584  1.8532   163.5     8.9    23.3
    ...
    2020 08 13    20 10 26.6 -29 56 14   0.8666  1.8387   155.9    13.0    23.5
    2020 08 14    20 08 10.7 -29 59 14   0.8689  1.8362   154.6    13.7    23.5
    2020 08 15    20 05 56.9 -30 01 50   0.8714  1.8336   153.3    14.4    23.5
    ...
    2020 08 21    19 53 29.1 -30 09 48   0.8910  1.8169   145.4    18.4    23.7
    ...
    2020 08 29    19 39 54.9 -30 02 39   0.9283  1.7923   135.2    23.4    23.9
    ...
    2020 09 13    19 25 15.8 -29 13 03   1.0213  1.7381   118.0    30.7    24.3
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-P84
    


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