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  • MPEC 2015-V74 : 2012 TT78

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    M.P.E.C. 2015-V74                                Issued 2015 Nov. 7, 21:20 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
    
                                       2012 TT78
    
                               Revision to MPEC 2012-T52
    
    Additional Observations:
         K12T78T KC2015 11 06.20560 08 18 27.50 +17 33 14.1          20.5 RtEV074J04
         K12T78T KC2015 11 06.21391 08 18 29.29 +17 33 02.0          20.7 RtEV074J04
         K12T78T KC2015 11 06.22219 08 18 31.07 +17 32 49.3          21.0 RtEV074J04
         K12T78T  C2015 11 06.49855 08 19 31.48 +17 25 56.0          21.4 RoEV074926
         K12T78T  C2015 11 06.50637 08 19 33.07 +17 25 44.6          21.4 RoEV074926
         K12T78T  C2015 11 06.51418 08 19 34.72 +17 25 33.2          21.0 RoEV074926
         K12T78T KC2015 11 07.21577 08 22 08.41 +17 07 52.7          20.3 RtEV074J04
         K12T78T KC2015 11 07.22410 08 22 10.23 +17 07 40.1          20.6 RtEV074J04
         K12T78T KC2015 11 07.23244 08 22 11.96 +17 07 27.4          20.4 RtEV074J04
         K12T78T  C2015 11 07.49488 08 23 09.45 +17 00 45.8          21.3 RoEV074926
         K12T78T  C2015 11 07.50269 08 23 11.15 +17 00 33.6          21.4 RoEV074926
         K12T78T  C2015 11 07.51049 08 23 12.79 +17 00 21.2          21.6 RoEV074926
    
    Observer details:
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
    J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
        E. Schwab, M. Micheli, D. Koschny, A. Knoefel, M. Busch.  1.0-m f/4.4
        reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    151106 J04 35.4- 12.7+    151107 926 35.4- 12.6+    MPO248911   +0.0081 day
    
    Orbital elements:
    2012 TT78                                                Earth MOID = 0.2008 AU
    Epoch 2016 Jan. 13.0 TT = JDT 2457400.5                 MPC
    M   2.80427              (2000.0)            P               Q
    n   0.35716308     Peri.  240.52634     -0.59092109     -0.79728208
    a   1.9673955      Node   246.21207     +0.77890525     -0.52412929
    e   0.4173840      Incl.    7.73137     +0.21004494     -0.29938232
    P   2.76           H   20.1           G   0.15           U   2
    Residuals in seconds of arc
    121008 F51  0.1+  0.1+    121011 291  0.1+  0.0     121213 H21  0.2+  0.2-
    121008 F51  0.1-  0.0     121011 291  0.2-  0.5-    151106 J04  0.3-  0.0
    121008 F51  0.1+  0.2-    121011 291  0.1-  0.0     151106 J04  0.1-  0.2+
    121009 H21  0.1+  0.2+    121017 568  0.0   0.0     151106 J04  0.0   0.3-
    121009 H21  0.1-  0.5+    121017 568  0.0   0.0     151106 926  1.0+  0.1-
    121010 G96  0.4-  0.6+    121017 568  0.0   0.0     151106 926  0.2-  0.1+
    121010 G96  0.4-  0.4+    121023 291  0.4-  0.4+    151106 926  0.5-  0.4+
    121010 H01  0.0   0.2+    121023 291  0.4-  0.4+    151107 J04  0.3-  0.1-
    121010 G96  0.8-  0.1-    121023 291  0.2-  0.1-    151107 J04  0.3+  0.1-
    121010 H01  0.0   0.0     121113 H21  0.3-  0.4+    151107 J04  0.5-  0.1-
    121010 G96  0.2-  0.4+    121113 H21  0.4-  0.0     151107 926  0.1+  0.3+
    121010 H01  0.1+  0.1+    121113 H21  0.3+  0.1-    151107 926  0.5+  0.1+
    121010 H01  0.2-  0.2+    121213 H21  0.1+  0.1+    151107 926  0.1+  0.4-
    121010 G96  0.0   0.2+    121213 H21  0.1-  0.2+
    
    Ephemeris:
    2012 TT78                a,e,i = 1.97, 0.42, 8                   q = 1.1462
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2015 10 08    06 35 53.8 +25 36 40   0.9390  1.4420    96.1    43.6    22.4
    ...
    2015 10 23    07 27 26.8 +22 26 26   0.7912  1.3639    98.9    46.1    22.0
    ...
    2015 10 31    07 55 57.8 +19 55 48   0.7228  1.3249    99.9    47.6    21.8
    ...
    2015 11 06    08 17 42.1 +17 38 23   0.6765  1.2972   100.4    48.7    21.6
    2015 11 07    08 21 20.8 +17 13 25   0.6693  1.2928   100.5    48.9    21.6
    2015 11 08    08 24 59.7 +16 47 51   0.6621  1.2884   100.5    49.1    21.6
    ...
    2015 11 14    08 46 58.1 +14 02 12   0.6220  1.2629   100.7    50.3    21.4
    ...
    2015 11 22    09 16 21.4 +09 50 17   0.5761  1.2319   100.6    52.0    21.3
    ...
    2015 12 07    10 11 07.4 +00 43 03   0.5129  1.1850    99.7    55.0    21.0
    
    A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-V74
    

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