[Iaude] MPEC S229: 2012 TR139 [a=1.96,e=0.39,i=52.5,H=20.96]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Tue Sep 26 11:47:19 EDT 2023


M.P.E.C. 2023-S229                           Issued 2023 September 26, 15:45 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2012 TR139                                   


                           Revision to MPEC 2012-T81                            

Additional Observations:
     K12TD9R 1C2023 09 24.45182704 33 30.935+26 53 41.42         21.24GVES229G96
     K12TD9R 1C2023 09 24.45683404 33 31.334+26 53 05.50         21.24GVES229G96
     K12TD9R 1C2023 09 24.46182604 33 31.720+26 52 29.46         21.11GVES229G96
     K12TD9R 1C2023 09 24.46684004 33 32.076+26 51 53.75         21.25GVES229G96
     K12TD9R KC2023 09 24.49449404 33 34.211+26 48 35.89         21.85GVES229I52
     K12TD9R KC2023 09 24.49644004 33 34.348+26 48 21.60         21.81GVES229I52
     K12TD9R KC2023 09 24.49838704 33 34.474+26 48 07.70         21.29GVES229I52
     K12TD9R KC2023 09 24.50033304 33 34.643+26 47 53.59         21.74GVES229I52
     K12TD9R KC2023 09 25.35135204 34 46.733+25 04 21.79         21.59GVES229I52
     K12TD9R KC2023 09 25.35444004 34 46.960+25 03 59.22         21.40GVES229I52
     K12TD9R KC2023 09 25.35753004 34 47.201+25 03 36.47         21.24GVES229I52
     K12TD9R 1C2023 09 25.43164204 34 52.720+24 54 27.65         21.21GVES229G96
     K12TD9R 1C2023 09 25.43677504 34 53.065+24 53 49.16         21.44GVES229G96
     K12TD9R 1C2023 09 25.44532204 34 53.681+24 52 46.02         20.99GVES229G96
     K12TD9R 1C2023 09 25.45045604 34 54.052+24 52 08.00         21.62GVES229G96

Observer details:
G96 Mt. Lemmon Survey.  Observers K. W. Wierzchos, R. A. Kowalski.  Measurers
    E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
    Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
    Wierzchos.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer A. Serrano.  Measurers
    E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
    Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
    Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
    Wierzchos.  1.0-m prime focus + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or zero decimals in degrees), reference and Delta-T
230924 G96   29-   41-    230925 G96   29-   39-    MPO240147   -46.7 days

Orbital elements:
2012 TR139                                               Earth MOID = 0.2032 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 357.82920              (2000.0)            P               Q                  
n   0.35903494     Peri.  173.17393     +0.95667334     -0.09730208             
a   1.9605514      Node   200.22752     +0.21520205     +0.87115523             
e   0.3884156      Incl.   52.53344     +0.19612292     -0.48127006             
P   2.75           H   20.96          G   0.15           U   1                  
Residuals in seconds of arc
121011 703  0.1+  0.8-    121013 954  1.4+  1.0+    121019 474  0.0   0.5-
121011 703  2.1-  0.3-    121013 954  2.4+  1.5+    121019 474  0.1-  0.5-
121011 703  0.2-  0.6-    121013 204  0.2-  0.0     121019 474  0.2-  0.5+
121011 703  1.5-  1.0+    121013 204  0.0   0.0     121020 807  0.1+  0.1+
121011 H01  0.3-  0.1-    121013 204  0.2+  0.1-    121020 807  0.1-  0.2+
121011 703  0.8-  0.1-    121013 807  0.1+  0.1+    121020 807  0.1-  0.1+
121011 H01  0.2-  0.4-    121013 807  0.0   0.1-    121020 807  0.1-  0.1+
121011 H01  0.4-  0.3-    121013 807  0.0   0.4-    230924 G96  0.1+  0.4+
121011 H01  0.3-  0.4-    121013 807  0.1-  0.1+    230924 G96  0.3+  0.3+
121011 703  0.5-  0.2+    121013 807  0.2-  0.1+    230924 G96  0.3+  0.1-
121011 703  0.3-  0.1-    121013 854  1.7+  0.3+    230924 G96  0.0   0.1+
121011 703  0.2-  0.9+    121013 854  0.1+  2.0-    230924 I52  0.3+  0.3+
121011 G96  0.5-  0.3+    121013 854  0.2+  0.7+    230924 I52  0.1+  0.1-
121011 G96  0.2-  0.0     121014 J04  0.2-  0.3+    230924 I52  0.2-  0.0
121011 G96  0.1+  0.1-    121014 J04  0.2-  0.2+    230924 I52  0.1+  0.1-
121011 703  0.4+  1.2-    121014 J04  0.1-  0.1+    230925 I52  0.1+  0.3-
121011 703  0.6+  0.3-    121016 807  0.3+  0.3-    230925 I52  0.0   0.0
121012 807  0.1-  0.1-    121016 807  0.1-  0.2+    230925 I52  0.1+  0.0
121012 807  0.1-  0.0     121016 807  0.1-  0.2-    230925 G96  0.2+  0.1+
121012 807  0.2-  0.0     121016 807  0.2+  0.0     230925 G96  0.2-  0.3-
121012 I19  0.2+  0.2+    121016 807  0.1+  0.1-    230925 G96  0.3-  0.1+
121012 I19  0.2-  0.3-    121016 807  0.2+  0.1-    230925 G96  0.3-  0.3+
121012 I19  0.4+  0.2-    121016 807  0.0   0.2+
121013 954  0.4+  0.1-    121019 474  0.3+  0.1-

Ephemeris:
2012 TR139               a,e,i = 1.96, 0.39, 53                  q = 1.1990
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 08 27    03 27 21.8 +58 00 37   0.7172  1.2199    88.1    55.9    22.7
...
2023 09 11    04 08 29.1 +46 50 18   0.5358  1.2016    97.6    56.2    22.0
...
2023 09 19    04 24 47.1 +36 32 02   0.4486  1.1990   104.6    54.2    21.6
...
2023 09 25    04 34 16.7 +25 47 42   0.3954  1.2005   110.6    51.5    21.2
2023 09 26    04 35 37.7 +23 43 19   0.3880  1.2010   111.6    50.9    21.2
2023 09 27    04 36 54.9 +21 34 06   0.3812  1.2016   112.6    50.4    21.1
...
2023 10 03    04 43 12.7 +07 09 42   0.3528  1.2068   117.9    47.1    20.9
...
2023 10 11    04 47 41.5 -13 42 57   0.3545  1.2180   120.6    44.9    20.9
...
2023 10 26    04 43 38.8 -43 13 11   0.4640  1.2514   113.1    46.9    21.6

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-S229





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