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Minor Planet Center

MPEC 2009-V12 : 2009 TA1

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M.P.E.C. 2009-V12                                Issued 2009 Nov. 5, 17:45 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

                                   2009 TA1

                           Revision to MPEC 2009-T37

Additional Observations:
     K09T01A  C2002 10 04.29964 00 43 01.57 +13 13 04.1          19.7 R EV012644
     K09T01A  C2002 10 04.31013 00 43 00.61 +13 12 51.4          20.4 R EV012644
     K09T01A  C2002 10 04.32067 00 42 59.65 +13 12 37.6          20.8 R EV012644
     K09T01A  C2002 10 28.34314 23 56 45.08 -00 50 16.7                 EV012608
     K09T01A  C2002 10 28.35433 23 56 43.48 -00 50 50.4                 EV012608
     K09T01A  C2002 10 28.36538 23 56 41.85 -00 51 22.2          19.8 R EV012608

Observer details:
608 Haleakala-NEAT/MSSS.  Observers O. S. Pravdo, M. Hicks, K. Lawrence,
    D. MacDonald, P. Kervin, J. Africano.  Measurer R. J. Bouma.  1.2-m
    reflector + CCD.
644 Palomar Mountain/NEAT.  Observers R. Bambery, E. Helin, S. Pravdo,
    M. Hicks, K. Lawrence, R. Thicksten.  Measurer R. J. Bouma.  1.2-m Schmidt
    + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
021004 644 0.66+ 0.18+    021028 608 0.73+ 0.03+    MPO164404   -0.0011 day

Orbital elements:
2009 TA1                                                 Earth MOID = 0.0809 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M   3.37047              (2000.0)            P               Q
n   0.28427621     Peri.  271.69643     -0.42666053     -0.90016720
a   2.2907395      Node   204.16036     +0.89129709     -0.40208012
e   0.6635659      Incl.   12.34710     +0.15346106     -0.16742340
P   3.47           H   20.1           G   0.15           U   2
Residuals in seconds of arc
021004 644  0.1-  0.1-    091011 474  0.2-  0.2+    091018 I36  0.1-  0.7+
021004 644  0.3-  0.4+    091011 474  0.4-  0.1+    091018 I36  0.1+  1.0+
021004 644  0.3-  0.2-    091011 J28  0.1+  0.2+    091020 704  0.0   0.2-
021028 608  0.1-  0.1-    091011 J28  0.3+  0.3-    091020 704  0.6-  0.1+
021028 608  0.5+  0.6-    091011 J28  0.0   0.7-    091020 704  0.5+  0.4+
021028 608  0.2+  0.5+    091011 J95  0.2-  0.2-    091020 704  0.4+  1.1+
090929 G96  0.1+  0.1-    091011 J95  0.5+  0.1-    091025 J51  0.2+  0.2+
090929 G96  0.2+  0.1-    091011 J95  0.1+  0.3-    091025 J51  0.3-  0.4+
090929 G96  0.2+  0.2-    091013 D21  0.3+  0.9+    091025 J51  0.6-  0.6+
090929 G96  0.2+  0.1-    091013 D21  0.7+  0.1-    091025 B74  0.3+  0.7-
091010 J75  0.2-  0.3+    091013 D21  0.6+  0.4+    091025 B74  0.2+  1.2-
091010 J75  0.1-  0.4-    091014 J75  0.7+  0.0     091025 B74  0.2-  0.4-
091010 J75  0.9-  0.3+    091014 J75  0.1+  0.1-    091025 160  0.8-  0.3-
091011 J75  0.3+  0.2+    091014 J75  0.4+  0.4-    091025 160  0.2-  0.5+
091011 J75  0.2+  0.1-    091014 703  0.1-  0.5-    091025 160  0.8-  0.1-
091011 204  0.1+  0.2+    091014 703  0.4-  0.6-    091025 704  0.0   0.0
091011 J75  0.2+  0.1-    091014 703  0.4+  0.3-    091025 704  0.4-  0.0
091011 204  0.0   0.0     091014 703  0.5-  0.3+    091025 704  1.1+  0.3-
091011 204  0.1-  0.0     091015 J13  0.1-  0.2+    091025 704  0.3+  0.2-
091011 H55  0.2-  0.4+    091015 J13  0.1-  0.1+    091026 130  0.2-  0.2+
091011 H55  0.3-  0.3+    091015 J13  0.3-  0.1+    091026 130  0.4-  0.1+
091011 H55  0.4-  0.4+    091015 J13  0.3-  0.1+    091026 130  0.3-  0.0
091011 H55  0.3-  0.3+    091017 I20  0.9+  0.6-    091026 130  0.0   0.4+
091011 H55  0.3-  0.4+    091017 I20  0.2+  0.5-    091101 926  0.1+  0.0
091011 G96  0.2-  0.1+    091017 I20  0.1-  0.4-    091101 926  0.1-  0.0
091011 G96  0.1+  0.1+    091017 448  0.0   0.2-    091101 926  0.0   0.0
091011 G96  0.2+  0.0     091017 448  0.1+  0.1-    091104 448  0.2-  0.3+
091011 G96  0.1+  0.0     091017 448  0.2-  0.4-    091104 448  0.2-  0.1-
091011 926  0.5-  0.7+    091018 J75  0.5+  0.0     091104 448  0.3+  0.3-
091011 926  0.7-  0.5+    091018 J75  0.6-  0.3+    091104 448  0.0   0.2+
091011 474  0.4-  0.0     091018 J75  0.6+  0.6-    091104 448  0.4+  0.0
091011 474  0.4-  0.0     091018 I36  0.3+  0.3+

Ephemeris:
2009 TA1                 a,e,i = 2.29, 0.66, 12                  q = 0.7707
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 11 05    04 27.42   -26 43.4    0.104    1.062   130.3    45.4    17.1
2009 11 07    04 57.07   -35 52.8    0.0981   1.043   119.7    55.6    17.2
2009 11 09    05 37.83   -45 09.1    0.0957   1.024   108.0    66.9    17.4
2009 11 11    06 33.09   -53 10.5    0.0977   1.006    96.4    78.0    17.8
2009 11 13    07 42.47   -58 36.6    0.104    0.988    85.9    88.1    18.3
2009 11 15    08 56.82   -60 55.3    0.113    0.970    76.8    96.7    18.8
2009 11 17    10 02.75   -60 43.0    0.124    0.952    69.5   103.5    19.3
2009 11 19    10 53.86   -59 06.0    0.138    0.935    63.7   108.8    19.7
2009 11 21    11 31.52   -56 55.9    0.153    0.919    59.1   112.7    20.2
2009 11 23    11 59.33   -54 40.0    0.169    0.903    55.6   115.5    20.5
2009 11 25    12 20.43   -52 30.3    0.186    0.888    52.9   117.4    20.8

Sonia Keys                   (C) Copyright 2009 MPC           M.P.E.C. 2009-V12

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