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  • MPEC 2018-Y86 : 2016 PL66

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    M.P.E.C. 2018-Y86                                Issued 2018 Dec. 28, 12:31 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 PL66
    
                              Revision to MPEC 2016-P128
    
    Additional Observations:
         K16P66L |C2018 12 15.24427 08 40 31.92 +03 03 27.7          22.4 GUEY086807
         K16P66L |C2018 12 15.25949 08 40 31.68 +03 03 14.6          22.4 GUEY086807
         K16P66L |C2018 12 15.27429 08 40 31.42 +03 03 02.4          22.6 GUEY086807
         K16P66L |C2018 12 28.23519 08 33 28.56 +00 11 04.5          22.6 GUEY086807
         K16P66L |C2018 12 28.24737 08 33 27.83 +00 10 55.7          22.6 GUEY086807
         K16P66L |C2018 12 28.25915 08 33 27.14 +00 10 47.2          22.6 GUEY086807
    
    Observer details:
    807 Cerro Tololo Observatory, La Serena.  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
    181215 807 74.1+ 16.7-    181228 807 89.0+ 20.3-    MPO392489   -0.027 day
    
    Orbital elements:
    2016 PL66                                                Earth MOID = 0.1709 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M 297.41349              (2000.0)            P               Q
    n   0.60853987     Peri.   24.28971     -0.25625130     +0.95946507
    a   1.3791453      Node   231.07933     -0.90969188     -0.28041081
    e   0.1465887      Incl.    8.67231     -0.32679650     +0.02822326
    P   1.62           H   21.5           G   0.15           U   3
    Residuals in seconds of arc
    160806 F51  0.0   0.2-    160831 H21  1.2+  0.4-    161007 291  0.1-  0.1+
    160806 F51  0.1+  0.1-    160831 H21  1.1+  0.4-    161007 291  0.0   0.3-
    160810 F51  0.0   0.1+    160831 H21  1.0+  0.2-    161007 291  0.1-  0.2-
    160810 F51  0.2+  0.1-    160902 H36 (1.7+  1.0-)   161022 H21  0.4-  0.3+
    160810 F51  0.1+  0.1-    160902 H36  0.8+  0.3-    161022 H21  0.5-  0.1+
    160810 F51  0.3+  0.1-    160902 H36  0.1+  0.2-    161022 H21  0.3-  0.2+
    160811 H21  0.4-  0.2-    160912 G96  0.2-  0.0     161023 H21  0.3-  0.4+
    160811 H21  0.2-  0.1+    160912 G96  0.4-  0.3+    161023 H21  0.3-  0.4+
    160811 H21  0.1-  0.1+    160912 G96  0.4+  0.5+    161023 H21  0.3-  0.2+
    160812 J95  1.1-  0.1+    160912 G96  0.4+  0.9-    161105 H21  0.2+  0.5+
    160812 J95  0.4-  0.6+    161003 H21  0.1+  0.2-    161105 H21  0.2-  0.2+
    160812 J95  0.3-  0.4+    161003 H21  0.2+  0.0     161105 H21  0.0   0.3+
    160816 705  0.2+  0.1-    161003 H21  0.3-  0.0     181215 807  0.4+  0.2-
    160816 705  0.1+  0.1-    161006 H21  0.1+  0.2+    181215 807  0.3+  0.3-
    160816 705  0.3+  0.2-    161006 H21  0.1+  0.2+    181215 807  0.1-  0.1+
    160830 H21  1.1+  0.4-    161006 H21  0.2+  0.0     181228 807  0.1-  0.2+
    160830 H21  1.0+  0.4-    161006 291  0.1-  0.1-    181228 807  0.2-  0.1+
    160830 H21  1.1+  0.2-    161006 291  0.0   0.0     181228 807  0.1-  0.1+
    
    Ephemeris:
    2016 PL66                a,e,i = 1.38, 0.15, 9                   q = 1.1770
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 11 28    08 36 32.7 +07 16 33   0.8647  1.5654   115.3    34.7    23.6
    ...
    2018 12 13    08 40 49.3 +03 35 31   0.7417  1.5525   127.6    30.2    23.1
    ...
    2018 12 21    08 38 32.7 +01 43 30   0.6842  1.5442   134.8    26.9    22.8
    ...
    2018 12 27    08 34 32.8 +00 25 58   0.6459  1.5372   140.4    24.1    22.6
    2018 12 28    08 33 41.0 +00 13 48   0.6400  1.5360   141.3    23.6    22.6
    2018 12 29    08 32 45.9 +00 01 53   0.6342  1.5348   142.3    23.1    22.5
    ...
    2019 01 04    08 26 06.4 -01 03 23   0.6027  1.5272   147.7    20.1    22.3
    ...
    2019 01 12    08 14 29.4 -02 09 31   0.5699  1.5161   153.9    16.6    22.1
    ...
    2019 01 27    07 48 04.6 -02 49 50   0.5400  1.4930   155.6    15.8    21.9
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y86
    

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