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  • MPEC 2021-T187 : 2008 TA

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    M.P.E.C. 2021-T187                              Issued 2021 October 9, 11:41 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
    
                                     2008 TA                                 
    
    
                               Revision to MPEC 2008-T12                            
    
    Additional Observations:
         K08T00A  C2021 10 07.23995001 21 08.85 +11 48 35.4          22.14GVET187G96
         K08T00A  C2021 10 07.24511101 21 06.98 +11 48 26.6                VET187G96
         K08T00A  C2021 10 07.25026401 21 05.11 +11 48 14.2          22.07GVET187G96
         K08T00A  C2021 10 07.25541801 21 03.26 +11 48 02.6          21.61GVET187G96
         K08T00A KC2021 10 07.27703801 20 55.47 +11 47 17.1          21.32GVET187V06
         K08T00A KC2021 10 07.27942201 20 54.57 +11 47 11.9          21.71GVET187V06
         K08T00A KC2021 10 07.28180401 20 53.75 +11 47 06.8          21.04GVET187V06
         K08T00A KC2021 10 08.32178801 15 09.77 +11 11 17.9          21.37GVET187G96
         K08T00A KC2021 10 08.32343501 15 09.22 +11 11 15.0          22.18GVET187G96
         K08T00A KC2021 10 08.32508101 15 08.72 +11 11 11.4          22.36GVET187G96
         K08T00A KC2021 10 08.32672701 15 08.15 +11 11 08.4          21.41GVET187G96
         K08T00A KC2021 10 09.21264801 10 40.15 +10 42 33.9          22.5 VuET187H21
         K08T00A KC2021 10 09.21914001 10 38.17 +10 42 21.7          22.2 VuET187H21
         K08T00A mC2021 10 09.41705701 09 39.35 +10 36 16.9          21.77GVET187G96
         K08T00A mC2021 10 09.41851001 09 38.93 +10 36 13.9          22.54GVET187G96
         K08T00A mC2021 10 09.41996901 09 38.50 +10 36 11.3          22.05GVET187G96
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observers E. J. Christensen, K. W. Wierzchos.
        Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
        Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
        Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m
        reflector + 10K CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  1.3-m f/4.0 astrograph + CCD.
    V06 Catalina Sky Survey-Kuiper.  Observer D. Rankin.  Measurers E. J.
        Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H.
        Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D.
        Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.55-m reflector +
        1K CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
    211007 G96   17-    5-    211009 G96   17-    6-    MPO147528   -9.73 days
    
    Orbital elements:
    2008 TA                                                  Earth MOID = 0.0035 AU
    Epoch 2021 July 5.0 TT = JDT 2459400.5                  Veres                   
    M 345.72460              (2000.0)            P               Q                  
    n   0.60765127     Peri.  259.26252     -0.27976913     +0.96006392             
    a   1.3804895      Node   354.48907     -0.87013814     -0.25468514             
    e   0.6475403      Incl.    1.52209     -0.40569552     -0.11581343             
    P   1.62           H   24.04          G   0.15           U   2                  
    Residuals in seconds of arc
    081001 703  1.5+  4.6-    081001 J95  0.0   0.5-    211007 G96  0.7+  0.6-
    081001 703  0.1+  0.6+    081002 H55  0.3-  0.3+    211007 G96 (0.6+  1.6+)
    081001 703  0.7-  0.2-    081002 H55  0.1-  0.4+    211007 G96  0.3+  0.2+
    081001 703  0.4-  1.0+    081002 H55  0.7+  0.2-    211007 G96  0.4+  0.4-
    081001 703  0.5-  3.3+    081005 474  0.4-  0.5-    211007 V06  0.2+  0.1+
    081001 703  1.8-  2.3+    081005 474  0.3-  0.2+    211007 V06  0.4-  0.1-
    081001 703  0.3+  2.2+    081005 474  0.3-  0.2-    211007 V06  0.1+  0.1-
    081001 703  0.2-  1.8+    081006 H55  0.2-  0.1-    211008 G96  0.4-  0.1-
    081001 658  0.3+  0.2-    081006 H55 (0.4+  0.9-)   211008 G96  0.5-  0.3+
    081001 658  0.4+  0.0     081006 H55 (0.1-  1.2-)   211008 G96  0.1+  0.0
    081001 658  0.4+  0.1+    081008 G96  0.3+  0.4-    211008 G96  0.4-  0.3+
    081001 474  0.5+  0.0     081008 G96  0.1-  0.4-    211009 H21  0.3-  0.4+
    081001 474  0.3-  0.0     081008 G96  0.5-  0.0     211009 H21  0.4-  0.3+
    081001 474  0.1+  0.1+    081008 G96  0.4+  0.5-    211009 G96  0.2-  0.3+
    081001 474  0.1-  0.2-    081010 H55  0.1-  0.3+    211009 G96  0.0   0.0
    081001 J95  0.3-  0.7-    081010 H55  0.3+  0.1+    211009 G96  0.0   0.1+
    081001 J95  0.4-  0.1+    081010 H55  0.4+  0.5+
    
    Ephemeris:
    2008 TA                  a,e,i = 1.38, 0.65, 2                   q = 0.4866
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2021 09 09    08 33 34.9 +18 30 13   0.1579  0.8925    40.2   133.3    25.8
    ...
    2021 09 24    03 51 15.9 +22 58 31   0.1241  1.0711   120.2    54.0    21.6
    ...
    2021 10 02    01 59 58.9 +15 33 13   0.1734  1.1607   155.2    21.2    21.6
    ...
    2021 10 08    01 16 53.1 +11 22 22   0.2276  1.2251   172.0     6.5    21.8
    2021 10 09    01 11 42.6 +10 49 34   0.2375  1.2355   174.2     4.7    21.8
    2021 10 10    01 06 58.0 +10 18 59   0.2477  1.2460   176.0     3.2    21.8
    ...
    2021 10 16    00 45 35.2 +07 55 00   0.3133  1.3070   170.6     7.2    22.6
    ...
    2021 10 24    00 29 31.5 +05 58 22   0.4104  1.3847   158.5    15.3    23.7
    ...
    2021 11 08    00 19 07.9 +04 28 44   0.6173  1.5193   140.6    24.4    25.0
    
    A. U. Tomatic                (C) Copyright 2021 MPC           M.P.E.C. 2021-T187
    


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