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IAU Minor Planet Center

Minor Planet Center

MPEC 2010-B67 : 2008 TD4

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M.P.E.C. 2010-B67                                Issued 2010 Jan. 31, 00:01 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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 http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2008 TD4

                           Revision to MPEC 2008-T83

Additional Observations:
     K08T04D 2C2010 01 18.34936306 41 09.488+03 29 52.57         24.3 R EB067568
     K08T04D 2C2010 01 18.37624706 41 07.438+03 29 56.62         24.0 R EB067568
     K08T04D 2C2010 01 19.27158406 40 01.049+03 32 12.83         23.9 R EB067568
     K08T04D 2C2010 01 19.27904406 40 00.491+03 32 13.99         24.3 R EB067568

Observer details:
568 Mauna Kea.  Observers M. Micheli, G. T. Elliott, D. J. Tholen.  Measurer
    D. J. Tholen.  2.24-m University of Hawaii reflector.

First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
100118 568 17.6-  4.4+    100119 568 17.5-  4.5+    MPO149073   +0.046 day

Orbital elements:
2008 TD4                                                 Earth MOID = 0.0899 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 209.37792              (2000.0)            P               Q
n   0.40085419     Peri.   54.73215     +0.10095622     +0.98070089
a   1.8217066      Node   222.06266     -0.97455638     +0.06363082
e   0.6173554      Incl.   14.47280     -0.20011924     +0.18486992
P   2.46           H   19.8           G   0.15           U   2
Residuals in seconds of arc
081007 703  0.2+  0.4-    081010 A48  0.1+  0.2+    081019 304  0.0   0.1-
081007 703  0.2+  0.1+    081010 A48  0.0   0.5+    081019 304  0.0   0.1-
081007 703  0.9+  0.5+    081011 B03  0.4-  0.2-    081019 304  0.1+  0.1-
081007 703  0.1-  0.1+    081011 B03  0.0   0.1+    081019 304  0.1-  0.0
081007 703  0.5-  0.2+    081011 B03  0.1+  0.2-    081019 304  0.2-  0.0
081007 703  0.0   0.4+    081011 H55  0.0   0.1+    081019 304  0.2-  0.2-
081007 703  0.2+  0.3+    081011 H55  0.2-  0.0     081019 A13  0.4+  1.5-
081007 854  0.3-  0.6-    081011 H55  0.4-  0.1+    081019 A13  0.2+  1.4-
081007 854  0.7-  0.4-    081011 H55  0.0   0.0     081019 204  0.2-  0.1-
081007 854  0.2-  0.5-    081011 H55  0.1+  0.1+    081019 204  0.2+  0.0
081007 673  0.1-  0.2+    081011 355  0.3-  0.6+    081019 204  0.0   0.3-
081007 673  0.2-  0.4+    081011 355  0.6+  0.3+    081019 204  0.1-  0.2-
081007 673  0.3-  0.3+    081011 355  0.2+  0.4+    081024 703  0.7-  0.3+
081007 673  0.0   0.2+    081011 355  0.0   1.2+    081024 703  0.9-  0.1-
081007 114  0.3-  0.2+    081011 355  1.0-  0.1-    081024 703  0.6-  0.6+
081007 114  0.0   0.1-    081012 H55  0.0   0.1+    081024 703  0.9-  0.2-
081007 114  0.1+  0.4+    081012 H55  0.1-  0.4+    081028 448  0.0   0.1-
081007 114  0.6+  1.9+    081012 H55  0.5-  0.1+    081028 448  0.1-  0.3-
081007 114  0.3+  0.5+    081016 448  0.5+  0.1-    081028 448  0.0   0.3-
081007 J95  0.0   0.4-    081016 448  0.0   0.1+    081029 H55  0.5-  0.6+
081007 J95  0.1+  0.4-    081016 448  0.1+  0.3-    081029 H55  0.0   0.4+
081007 J95  0.1+  0.5-    081017 H55  0.0   0.2-    081029 H55  0.1+  0.5+
081007 J51  0.6+  0.5-    081017 H55  0.1+  0.0     081030 G96  0.1-  0.2-
081007 J51  0.2+  0.6-    081017 H55  0.1+  0.3-    081030 G96  0.4-  0.0
081007 J51  0.1-  0.6-    081018 A17  0.0   0.2+    081030 G96  0.1+  0.2-
081008 704  0.1-  0.1+    081018 A17  0.1-  0.3+    081030 G96  0.0   0.1+
081008 704  0.2-  0.4+    081018 A17  0.3-  0.0     081101 H55  0.6-  0.4+
081008 704  0.2+  0.4+    081019 H55  0.2-  0.2+    081101 H55  0.0   0.0
081008 704  0.4+  0.0     081019 H55  0.2-  0.1+    081101 H55  0.1-  0.3+
081008 704  0.0   0.1+    081019 H55  0.1-  0.1-    081106 H55  0.3-  0.2+
081008 A78 (2.5-  1.0-)   081019 H55  0.1-  0.0     081106 H55  0.2+  0.3+
081008 A78  0.5+  0.2+    081019 304  0.1+  0.1-    081106 H55  0.4+  0.2+
081008 A70  0.1-  0.3+    081019 304  0.0   0.1-    081201 291  0.1-  0.2-
081008 A70  0.4-  1.2+    081019 304  1.3+  0.4+    081201 291  0.3+  0.4+
081008 A70  0.1+  0.6+    081019 304  0.0   0.1-    081201 291  0.4+  0.6-
081009 H55  0.3-  0.0     081019 304  0.1+  0.1-    100118 568  0.0   0.1-
081009 H55  0.1-  0.4-    081019 304  0.1+  0.1-    100118 568  0.1+  0.0
081009 H55  0.1-  0.1-    081019 304  0.1+  0.1-    100119 568  0.1-  0.0
081009 H55  0.4+  0.1+    081019 304  0.1+  0.1-    100119 568  0.0   0.0
081010 A48  0.3+  0.4+    081019 304  0.0   0.2-

Ephemeris:
2008 TD4                 a,e,i = 1.82, 0.62, 14                  q = 0.6971
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2010 01 24    06 34.38   +03 46.0    1.965    2.854   149.0    10.2    24.2
2010 02 03    06 23.98   +04 23.6    2.018    2.833   138.6    13.3    24.4
2010 02 13    06 16.19   +05 09.4    2.094    2.810   127.8    16.1    24.5
2010 02 23    06 11.33   +05 59.6    2.187    2.784   117.4    18.4    24.7
2010 03 05    06 09.43   +06 50.9    2.291    2.757   107.5    20.1    24.8

Gareth V. Williams           (C) Copyright 2010 MPC           M.P.E.C. 2010-B67

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