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  • MPEC 2018-S29 : 2016 UA

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    M.P.E.C. 2018-S29                                Issued 2018 Sept. 18, 11:36 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 UA
    
                               Revision to MPEC 2016-U12
    
    Additional Observations:
         K16U00A  C2018 09 05.62650705 28 16.258+41 02 57.77         22.56GVES029T12
         K16U00A  C2018 09 05.62837205 28 16.434+41 02 59.44         22.71GVES029T12
         K16U00A  C2018 09 05.63023305 28 16.627+41 03 00.94         22.80GVES029T12
         K16U00A  C2018 09 05.63446705 28 17.029+41 03 04.56         22.75GVES029T12
         K16U00A  C2018 09 07.59300405 31 41.079+41 30 17.88         22.47GVES029T12
         K16U00A  C2018 09 07.59570005 31 41.353+41 30 20.10         22.26GVES029T12
         K16U00A  C2018 09 07.59825405 31 41.595+41 30 22.34         22.29GVES029T12
         K16U00A  C2018 09 15.62614705 45 49.816+43 26 24.21         22.03GVES029T12
         K16U00A  C2018 09 15.62717305 45 49.918+43 26 25.18         21.97GVES029T12
    
    Observer details:
    T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m).  Observers D. J. Tholen,
        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, reference and Delta-T
    180905 T12  2.1-  7.4+    180915 T12  6.8-  9.9+    MPO397883   +0.0078 day
    
    Orbital elements:
    2016 UA                                                  Earth MOID = 0.1153 AU
    Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
    M 237.77037              (2000.0)            P               Q
    n   1.50509687     Peri.  282.85047     -0.80906780     +0.56579101
    a   0.7540956      Node   291.81911     -0.45055666     -0.77085526
    e   0.5172030      Incl.    9.86337     -0.37736983     -0.29268190
    P   0.65           H   20.9           G   0.15           U   4
    Residuals in seconds of arc
    161016 F51  0.1-  0.1+    161022 H21  0.3+  0.3-    161121 H21  0.3+  0.2+
    161016 F51  0.1+  0.2-    161022 H21  0.1+  0.2-    161121 H21  0.2+  0.2+
    161016 F51  0.1-  0.1-    161102 I52  0.1-  0.2-    161121 H21  0.0   0.1-
    161016 F51  0.0   0.1-    161102 I52  0.2-  0.4-    161121 H21  0.3+  0.2+
    161016 J95  0.3+  0.1+    161102 I52  0.2-  0.2-    161121 H21  0.1+  0.1+
    161016 J95  0.4-  0.1+    161103 204  0.0   0.1-    161121 246  0.5-  0.6-
    161016 J95  0.1+  0.8-    161103 204  0.1+  0.1-    161121 246  0.5-  0.6+
    161017 926  0.2+  0.8+    161103 204  0.2+  0.1-    161121 246  0.5-  0.5-
    161017 926  0.1-  0.2+    161110 H21  0.1+  0.1+    161121 246  0.3-  0.4-
    161017 926  0.1-  0.2+    161110 H21  0.1+  0.2+    161121 246  0.0   0.5-
    161017 926  0.4-  0.2+    161110 H21  0.1-  0.1+    161121 246  0.0   0.4-
    161017 926  0.0   0.1-    161110 H21  0.1+  0.4+    161122 H21  0.1+  0.2-
    161017 F51  0.0   0.1+    161111 H21  0.4+  0.4+    161122 H21  0.2+  0.4+
    161017 F51  0.3+  0.1-    161111 H21  0.4+  0.2+    161122 H21  0.2+  0.1-
    161017 F51  0.1-  0.1+    161111 H21  0.3+  0.4+    161125 G96  0.2-  0.0
    161017 F51  0.1-  0.1+    161112 695  0.1-  0.1+    161125 G96  0.2+  0.1+
    161018 926  0.2-  0.0     161112 695  0.1+  0.4+    161125 G96  0.4+  0.1-
    161018 926  0.1-  0.1-    161112 695  0.1+  0.4+    161206 H21  0.1-  0.5-
    161018 926  0.2-  0.2+    161117 H21  0.1+  0.0     161206 H21  0.2-  0.3-
    161018 H36  0.5+  0.1-    161117 H21  0.1+  0.2+    161206 H21  0.1-  0.4-
    161018 H36  0.3-  1.0+    161117 H21  0.1-  0.1+    161218 I52  0.0   0.2+
    161018 H36  0.1+  0.2-    161117 H21  0.1-  0.1+    161218 I52  0.1-  0.5+
    161018 926  0.2-  0.1+    161117 H21  0.2+  0.1-    161218 I52  0.3+  0.7+
    161018 926  0.1-  0.5+    161118 H45  0.5+  0.2-    161218 I52  0.3-  0.1+
    161018 926  0.2+  0.2+    161118 H45  0.5+  0.1+    180905 T12  0.0   0.0
    161018 104  0.7-  0.2+    161118 H45  0.1-  0.2-    180905 T12  0.0   0.1+
    161018 104  0.4-  0.2-    161118 H45  0.0   0.8-    180905 T12  0.1+  0.0
    161018 104  0.0   0.4-    161118 H45  0.1+  0.4-    180905 T12  0.1+  0.0
    161018 J95  0.3+  0.8+    161118 H45  0.1+  0.3+    180907 T12  0.0   0.1+
    161018 J95  0.0   0.1-    161119 H45  0.7-  0.1-    180907 T12  0.1+  0.0
    161018 J95  0.2-  0.2-    161119 H45  0.5-  0.5-    180907 T12  0.0   0.0
    161021 926  0.2+  0.1-    161119 H45  0.2-  0.5+    180915 T12  0.1-  0.0
    161021 926  0.2+  0.1+    161119 H45  0.1-  0.1-    180915 T12  0.1-  0.0
    161021 926  0.1+  0.3+    161119 H45  0.3-  0.2+
    161022 H21  0.0   0.4-    161119 H45  0.1+  0.2+
    
    Ephemeris:
    2016 UA                  a,e,i = 0.75, 0.52, 10                  q = 0.3641
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 08 19    04 59 50.9 +37 06 16   0.6436  0.9834    68.8    73.6    22.5
    ...
    2018 09 03    05 23 45.3 +40 26 50   0.6079  1.0640    78.0    68.0    22.3
    ...
    2018 09 11    05 37 38.1 +42 18 30   0.5764  1.0953    82.8    65.8    22.2
    ...
    2018 09 17    05 48 15.9 +43 47 02   0.5481  1.1136    86.3    64.3    22.1
    2018 09 18    05 50 02.9 +44 02 21   0.5430  1.1162    86.9    64.0    22.1
    2018 09 19    05 51 50.0 +44 17 50   0.5379  1.1187    87.5    63.8    22.1
    ...
    2018 09 25    06 02 35.8 +45 55 14   0.5052  1.1313    91.1    62.4    21.9
    ...
    2018 10 03    06 17 01.9 +48 21 15   0.4576  1.1414    95.8    60.7    21.7
    ...
    2018 10 18    06 44 05.9 +54 19 37   0.3600  1.1402   104.3    57.9    21.1
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-S29
    

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