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  • MPEC 2018-B78 : 2015 TM178

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    M.P.E.C. 2018-B78                                Issued 2018 Jan. 20, 22:48 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
    
                                      2015 TM178
    
                               Revision to MPEC 2015-T98
    
    Additional Observations:
         K15TH8M |C2018 01 18.28507 11 47 16.43 -01 31 33.4          23.2 GUEB078807
         K15TH8M |C2018 01 18.30317 11 47 16.82 -01 31 28.0          23.2 GUEB078807
         K15TH8M |C2018 01 18.32086 11 47 17.20 -01 31 22.7          23.3 GUEB078807
         K15TH8M |C2018 01 19.30489 11 47 40.55 -01 26 10.3          23.2 GUEB078807
         K15TH8M |C2018 01 19.32299 11 47 40.90 -01 26 04.4          23.3 GUEB078807
         K15TH8M |C2018 01 19.34066 11 47 41.23 -01 25 58.7          23.1 GUEB078807
    
    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
    180118 807  3.8-  0.9+    180119 807  3.5-  1.0+    MPO369272   +0.0013 day
    
    Orbital elements:
    2015 TM178                                               Earth MOID = 0.2434 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M  11.55236              (2000.0)            P               Q
    n   0.53740538     Peri.  243.44599     +0.79833807     -0.59864461
    a   1.4983090      Node   153.17457     +0.59114025     +0.75828888
    e   0.1966989      Incl.    8.33656     +0.11493273     +0.25811356
    P   1.83           H   21.4           G   0.15           U   2
    Residuals in seconds of arc
    151008 F51  0.2-  0.1-    151025 705  0.3+  0.2-    160114 807  0.4+  0.5-
    151008 F51  0.0   0.2-    151103 568  0.0   0.0     160114 807  0.5+  0.3-
    151008 F51  0.0   0.1-    151103 568  0.1+  0.0     160115 807  0.2-  0.4-
    151008 F51  0.2-  0.1-    151103 568  0.0   0.0     160115 807  0.4+  0.3-
    151011 291  0.0   0.0     151105 807  0.0   0.2+    160116 807  0.3+  0.1-
    151011 291  0.1-  0.1+    151105 807  0.3-  0.3-    160116 807  0.3+  0.4-
    151011 291  0.1-  0.1+    151105 807  0.2-  0.4+    160116 807  0.7+  0.4-
    151013 291  0.0   0.4+    151106 J04  0.0   0.0     160202 H21  1.0-  0.3+
    151013 291  0.2+  0.2+    151106 J04  0.1+  0.0     160202 H21  0.9-  0.3+
    151013 291  0.2+  0.1+    151115 H21  0.2+  0.8+    160202 H21  0.8-  0.6+
    151014 291  0.2-  0.2+    151115 H21  0.2-  0.5+    160205 H21  0.4-  0.1+
    151014 291  0.0   0.4-    151115 H21  0.2+  0.7+    160205 H21  0.4-  0.0
    151014 291  0.0   0.0     151202 926  0.1+  0.4-    160205 H21  0.1-  0.2+
    151014 F51  0.1-  0.1+    151202 926  0.1-  0.3-    180118 807  0.1-  0.2+
    151014 F51  0.2-  0.1-    151216 H21  0.9-  0.0     180118 807  0.0   0.1+
    151014 F51  0.0   0.0     151216 H21  0.7-  0.2-    180118 807  0.0   0.1+
    151014 F51  0.0   0.1+    151216 H21  0.9-  0.1-    180119 807  0.1-  0.4+
    151014 568  0.1-  0.0     151229 926  0.4+  0.7+    180119 807  0.2+  0.4+
    151014 568  0.2-  0.0     151229 926  0.4+  0.0     180119 807  0.3+  0.2+
    151025 705  0.2+  0.2-    151229 926  0.1+  0.0
    151025 705  0.3-  0.1+    160114 807  0.5+  0.9-
    
    Ephemeris:
    2015 TM178               a,e,i = 1.50, 0.20, 8                   q = 1.2036
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 12 21    11 19 27.9 -01 24 27   0.9412  1.4507    97.8    42.2    23.7
    ...
    2018 01 05    11 37 52.2 -02 02 39   0.8529  1.4927   108.6    38.6    23.5
    ...
    2018 01 13    11 44 25.3 -01 52 24   0.8062  1.5147   115.3    36.0    23.3
    ...
    2018 01 19    11 47 33.4 -01 27 56   0.7724  1.5310   120.8    33.5    23.2
    2018 01 20    11 47 55.1 -01 22 21   0.7669  1.5337   121.8    33.0    23.1
    2018 01 21    11 48 14.1 -01 16 19   0.7615  1.5364   122.8    32.6    23.1
    ...
    2018 01 27    11 49 06.7 -00 30 33   0.7307  1.5522   129.0    29.5    23.0
    ...
    2018 02 04    11 47 29.1 +00 56 24   0.6948  1.5729   138.1    24.7    22.7
    ...
    2018 02 19    11 35 55.6 +04 52 34   0.6518  1.6099   157.4    13.6    22.3
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-B78
    

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