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  • MPEC 2018-R109: 2016 EC195

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    M.P.E.C. 2018-R109                               Issued 2018 Sept. 11, 11:41 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 EC195
    
                               Revision to MPEC 2016-F19
    
    Additional Observations:
         K16EJ5C |C2018 09 07.14067 21 11 49.10 -49 29 08.5          22.1 GUER109807
         K16EJ5C |C2018 09 07.14770 21 11 48.28 -49 28 57.9          22.4 GUER109807
         K16EJ5C |C2018 09 07.15577 21 11 47.37 -49 28 45.4          22.3 GUER109807
         K16EJ5C |C2018 09 10.01754 21 06 59.38 -48 15 05.3          22.6 GUER109807
         K16EJ5C |C2018 09 10.02265 21 06 58.85 -48 14 57.1          22.6 GUER109807
         K16EJ5C |C2018 09 10.02826 21 06 58.28 -48 14 48.2          22.6 GUER109807
         K16EJ5C |C2018 09 10.03267 21 06 57.86 -48 14 41.3          22.7 GUER109807
    
    Observer details:
    807 Cerro Tololo.  Observers T. Linder, R. Holmes.  1.00-m f/10.0 astrograph
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    180907 807 27.2-  8.3-    180910 807 26.1-  7.5-    MPO380421   +0.0074 day
    
    Orbital elements:
    2016 EC195                                               Earth MOID = 0.3500 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 153.11432              (2000.0)            P               Q
    n   0.57842815     Peri.   78.95162     -0.00802858     -0.99763713
    a   1.4266029      Node    12.14779     +0.74316417     -0.05160761
    e   0.1225435      Incl.   18.91998     +0.66906095     +0.04535209
    P   1.70           H   21.2           G   0.15           U   3
    Residuals in seconds of arc
    160313 F51  0.0   0.3+    160317 291  0.5-  0.5-    160412 474  0.3-  0.3+
    160313 F51  0.1+  0.3+    160317 291  0.4+  0.3+    160427 807  0.3-  0.1-
    160313 F51  0.1+  0.4+    160317 291  0.0   0.2-    160427 807  0.2-  0.2-
    160313 F51  0.3+  0.5+    160401 807  0.8+  0.6-    160427 807  0.3-  0.5-
    160315 291  0.7-  1.4-    160401 807  0.2+  0.2-    180907 807  0.3-  0.2-
    160315 291  0.1+  0.7+    160401 807  0.1+  0.1-    180907 807  0.3-  0.2-
    160315 807  0.1-  0.1+    160411 F51  0.0   0.1+    180907 807  0.1+  0.2+
    160315 291  0.1+  0.1-    160411 F51  0.1+  0.1-    180910 807  0.3+  0.2-
    160315 807  0.4+  0.4-    160411 F51  0.1+  0.2+    180910 807  0.1+  0.1+
    160315 807  0.3+  0.1-    160411 F51  0.1-  0.1+    180910 807  0.1-  0.2+
    160316 291  0.3+  0.4-    160412 474  0.4+  0.4+    180910 807  0.1+  0.2+
    160316 291  0.2-  0.1-    160412 474  0.3-  0.2+
    160316 291  0.6-  0.3-    160412 474  0.1+  0.0
    
    Ephemeris:
    2016 EC195               a,e,i = 1.43, 0.12, 19                  q = 1.2518
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 08 12    22 22 12.7 -55 26 33   0.6274  1.5392   138.2    26.0    22.3
    ...
    2018 08 27    21 37 34.1 -53 20 58   0.6205  1.5193   136.0    27.5    22.3
    ...
    2018 09 04    21 18 00.1 -50 44 07   0.6297  1.5077   132.6    29.5    22.4
    ...
    2018 09 10    21 07 00.4 -48 15 32   0.6422  1.4987   129.3    31.3    22.5
    2018 09 11    21 05 30.4 -47 48 47   0.6447  1.4971   128.7    31.6    22.5
    2018 09 12    21 04 06.1 -47 21 34   0.6473  1.4956   128.1    32.0    22.5
    ...
    2018 09 18    20 57 37.1 -44 30 18   0.6657  1.4862   124.4    33.9    22.6
    ...
    2018 09 26    20 53 42.8 -40 28 49   0.6960  1.4732   119.2    36.5    22.7
    ...
    2018 10 11    20 57 49.2 -32 48 25   0.7674  1.4478   109.5    40.6    23.0
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-R109
    

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