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  • MPEC 2012-S39 : 2012 ST9

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    M.P.E.C. 2012-S39                                Issued 2012 Sept. 20, 17:41 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 https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2012 ST9
    
    Observations:
         K12S09T* C2012 09 17.35624 00 43 40.08 +02 17 24.5          20.5 VrES039G96
         K12S09T  C2012 09 17.36552 00 43 39.39 +02 17 15.3          20.6 VrES039G96
         K12S09T  C2012 09 17.37477 00 43 38.74 +02 17 05.8          20.7 VrES039G96
         K12S09T  C2012 09 17.38405 00 43 38.06 +02 16 56.9          20.7 VrES039G96
         K12S09T  C2012 09 17.41712 00 43 35.65 +02 16 24.2          20.8 VrES039G96
         K12S09T  C2012 09 17.42572 00 43 35.07 +02 16 15.7          20.7 VrES039G96
         K12S09T  C2012 09 17.43437 00 43 34.39 +02 16 07.1          20.9 VrES039G96
         K12S09T  C2012 09 17.44299 00 43 33.81 +02 15 57.8          21.0 VrES039G96
         K12S09T KC2012 09 18.09699 00 42 48.43 +02 04 52.8                tES039204
         K12S09T KC2012 09 18.12197 00 42 46.60 +02 04 27.2          20.0 RtES039204
         K12S09T  C2012 09 18.26052 00 42 37.46 +02 02 06.8          20.0 RoES039H01
         K12S09T  C2012 09 18.26414 00 42 37.19 +02 02 03.0          20.0 RoES039H01
         K12S09T  C2012 09 18.27371 00 42 36.46 +02 01 53.1          20.0 RoES039H01
         K12S09T  C2012 09 18.28321 00 42 35.73 +02 01 43.4          20.5 RoES039H01
         K12S09T KC2012 09 18.44077200 42 23.73 +01 59 00.4          20.4 RtES039711
         K12S09T KC2012 09 18.44696600 42 23.26 +01 58 54.2          20.6 RtES039711
         K12S09T KC2012 09 18.45314400 42 22.80 +01 58 47.6          20.5 RtES039711
         K12S09T KC2012 09 18.56182 00 42 15.46 +01 57 10.2          20.8 RoES039474
         K12S09T KC2012 09 18.56533 00 42 15.23 +01 57 06.8          20.7 RoES039474
         K12S09T KC2012 09 18.56885 00 42 14.96 +01 57 02.6          20.6 RoES039474
         K12S09T KC2012 09 18.57237 00 42 14.70 +01 56 58.9          20.3 RoES039474
         K12S09T KC2012 09 19.01075 00 41 42.78 +01 48 58.6                uES039J95
         K12S09T KC2012 09 19.01788 00 41 42.17 +01 48 50.3          20.0 RuES039J95
         K12S09T KC2012 09 19.20331100 41 28.64 +01 45 34.2          20.2 VrES039H21
         K12S09T KC2012 09 19.20953700 41 28.14 +01 45 27.4          20.3 VrES039H21
         K12S09T KC2012 09 19.21750900 41 27.53 +01 45 18.7          20.2 VrES039H21
         K12S09T  C2012 09 19.25334 00 41 24.92 +01 44 41.8          20.4 RoES039H01
         K12S09T  C2012 09 19.25875 00 41 24.49 +01 44 36.0          20.3 RoES039H01
         K12S09T  C2012 09 19.26663 00 41 23.87 +01 44 27.5          20.2 RoES039H01
         K12S09T  C2012 09 19.28157 00 41 22.68 +01 44 11.6          20.3 RoES039H01
         K12S09T KC2012 09 19.28556 00 41 22.30 +01 44 05.3          20.5 RuES039H36
         K12S09T KC2012 09 19.29485 00 41 21.50 +01 43 55.6          20.1 RuES039H36
         K12S09T KC2012 09 19.30415 00 41 20.78 +01 43 45.5          20.3 RuES039H36
         K12S09T  C2012 09 20.25724 00 40 07.91 +01 26 24.3          20.2 RoES039H01
         K12S09T  C2012 09 20.26501 00 40 07.26 +01 26 15.7          20.2 RoES039H01
         K12S09T  C2012 09 20.27190 00 40 06.69 +01 26 07.9          20.1 RoES039H01
         K12S09T  C2012 09 20.27672 00 40 06.35 +01 26 02.7          20.6 VrES039G96
         K12S09T  C2012 09 20.27728 00 40 06.30 +01 26 02.2          20.5 VrES039G96
         K12S09T  C2012 09 20.27784 00 40 06.22 +01 26 01.2          20.7 VrES039G96
         K12S09T  C2012 09 20.27810 00 40 06.18 +01 26 01.0          20.0 RoES039H01
         K12S09T  C2012 09 20.27839 00 40 06.24 +01 26 00.8          20.6 VrES039G96
         K12S09T KC2012 09 20.37210 00 39 58.23 +01 24 16.0          20.1 RuES039H36
         K12S09T KC2012 09 20.37824 00 39 57.69 +01 24 08.2          20.0 RuES039H36
         K12S09T KC2012 09 20.38438 00 39 57.19 +01 24 01.1          19.8 RuES039H36
         K12S09T KC2012 09 20.43371 00 39 53.22 +01 23 07.1          20.5 RuES039682
         K12S09T KC2012 09 20.45526 00 39 51.52 +01 22 41.9          20.9 RuES039682
         K12S09T KC2012 09 20.47756 00 39 49.60 +01 22 14.0          21.1 RuES039682
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    474 Mount John Observatory, Lake Tekapo.  Observer A. C. Gilmore.  1.0-m f/7.7
        reflector + CCD.
    682 Kanab.  Observer E. Sheridan.  35.60-m f/11 Schmidt-Cassegrain + CCD + f/5
        focal reducer.
    711 McDonald Observatory.  Observer T. Lister.  1.0-m f/8 Ritchey-Chretien
        + CCD.
    G96 Mt. Lemmon Survey.  Observers R. A. Kowalski, A. R. Gibbs.  Measurers
        A. Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observer W. H. Ryan.  2.4-m f/8.9
        reflector + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov.  0.61-m f/4.0
        astrograph + CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
    2012 ST9                                                 Earth MOID = 0.0634 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M 324.20042              (2000.0)            P               Q
    n   0.35919385     Peri.  308.06201     -0.53849105     -0.84253451
    a   1.9599732      Node   174.47348     +0.80866287     -0.52098245
    e   0.6619822      Incl.    7.61782     +0.23683698     -0.13679505
    P   2.74           H   19.8           G   0.15           U   9
    Residuals in seconds of arc
    120917 G96  0.0   0.1-    120918 711  0.0   0.2-    120919 H36  0.3+  0.9-
    120917 G96  0.2-  0.1-    120918 474  0.6-  0.0     120920 H01  0.0   0.1+
    120917 G96  0.1+  0.3-    120918 474  0.0   0.3+    120920 H01  0.1-  0.1+
    120917 G96  0.0   0.0     120918 474  0.0   0.3-    120920 H01  0.0   0.0
    120917 G96  0.2-  0.4+    120918 474  0.1+  0.3-    120920 G96  0.1+  0.1-
    120917 G96  0.4+  0.5+    120919 J95  0.6+  0.7+    120920 G96  0.1+  0.0
    120917 G96  0.4-  0.5+    120919 J95  0.3-  0.0     120920 G96  0.4-  0.4-
    120917 G96  0.2+  0.1-    120919 H21  0.0   0.2-    120920 H01  0.0   0.0
    120918 204  0.1-  0.3-    120919 H21  0.2-  0.3-    120920 G96  0.6+  0.2-
    120918 204  0.1+  0.2-    120919 H21  0.1+  0.5-    120920 H36  0.2+  0.9+
    120918 H01  0.0   0.1-    120919 H01  0.2-  0.0     120920 H36  0.3-  0.0
    120918 H01  0.1+  0.1-    120919 H01  0.3-  0.0     120920 H36  0.2-  0.2-
    120918 H01  0.1-  0.2-    120919 H01  0.2-  0.0     120920 682  0.9-  0.7+
    120918 H01  0.2-  0.1-    120919 H01  0.3-  0.1+    120920 682  0.4+  0.3-
    120918 711  0.0   0.3-    120919 H36  1.0+  1.0-    120920 682 (0.8-  3.1-)
    120918 711  0.1-  0.0     120919 H36  0.0   0.8-
    
    Ephemeris:
    2012 ST9                 a,e,i = 1.96, 0.66, 8                   q = 0.6625
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 08 21    00 55 46.1 +06 27 20   1.0792  1.9164   132.8    22.8    22.5
    ...
    2012 09 05    00 53 24.5 +04 55 56   0.8490  1.7878   148.5    17.2    21.6
    ...
    2012 09 13    00 48 03.2 +03 23 44   0.7411  1.7159   158.0    12.7    21.1
    ...
    2012 09 19    00 41 43.5 +01 49 20   0.6683  1.6605   165.8     8.5    20.6
    2012 09 20    00 40 27.7 +01 31 17   0.6569  1.6512   167.1     7.8    20.5
    2012 09 21    00 39 08.3 +01 12 34   0.6458  1.6418   168.4     7.0    20.4
    ...
    2012 09 27    00 29 53.6 -00 54 32   0.5835  1.5847   175.5     2.8    19.9
    ...
    2012 10 05    00 14 04.2 -04 23 20   0.5137  1.5065   168.2     7.8    19.8
    ...
    2012 10 20    23 35 19.7 -12 28 05   0.4239  1.3539   141.6    27.2    19.8
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-S39
    

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