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  • MPEC 2012-U12 : 2012 TR231

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    M.P.E.C. 2012-U12                                Issued 2012 Oct. 17, 16:47 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 TR231
    
    Observations:
         K12TN1R* C2012 10 14.26586 00 11 47.58 +01 54 03.7          20.0 VrEU012G96
         K12TN1R  C2012 10 14.27093 00 11 45.67 +01 52 00.1          19.9 VrEU012G96
         K12TN1R  C2012 10 14.27608 00 11 43.69 +01 49 52.2          20.2 VrEU012G96
         K12TN1R  C2012 10 14.28124 00 11 41.78 +01 47 47.5          19.5 VrEU012G96
         K12TN1R  C2012 10 14.32000 00 11 27.27 +01 32 03.5          20.9 VrEU012G96
         K12TN1R  C2012 10 14.32586 00 11 25.08 +01 29 37.7          19.6 VrEU012G96
         K12TN1R  C2012 10 14.33168 00 11 22.92 +01 27 16.5          19.8 VrEU012G96
         K12TN1R  C2012 10 14.33759 00 11 20.72 +01 24 51.8          19.5 VrEU012G96
         K12TN1R KC2012 10 14.34638 00 11 17.52 +01 21 18.1                oEU012291
         K12TN1R KC2012 10 14.34990 00 11 16.23 +01 19 52.5          19.2 RoEU012291
         K12TN1R KC2012 10 14.92161 00 08 12.54 -02 30 16.4          19.3 RtEU012J04
         K12TN1R KC2012 10 14.92558 00 08 11.08 -02 31 51.4          19.2 RtEU012J04
         K12TN1R KC2012 10 14.92977 00 08 09.54 -02 33 31.1          19.2 RtEU012J04
         K12TN1R  C2012 10 15.09841 00 07 16.83 -03 40 32.5          18.7 RoEU012H01
         K12TN1R  C2012 10 15.10524 00 07 14.42 -03 43 14.1          19.2 RoEU012H01
         K12TN1R  C2012 10 15.11910 00 07 09.55 -03 48 42.8          19.4 RoEU012H01
         K12TN1R  C2012 10 15.12285 00 07 08.21 -03 50 11.8          19.0 RoEU012H01
         K12TN1R KC2012 10 15.25672 00 06 18.92 -04 42 57.5          18.4 RuEU012H36
         K12TN1R KC2012 10 15.25887 00 06 18.10 -04 43 49.3          18.9 RuEU012H36
         K12TN1R KC2012 10 15.26882 00 06 14.57 -04 47 42.8          18.5 RuEU012H36
         K12TN1R KC2012 10 15.27870 00 06 11.05 -04 51 33.6          19.2 RuEU012H36
         K12TN1R KC2012 10 15.28301 00 06 09.52 -04 53 16.0          19.3 RuEU012H36
         K12TN1R KC2012 10 15.85698 00 03 13.58 -08 33 42.2          19.8 RtEU012J04
         K12TN1R KC2012 10 15.86701 00 03 10.12 -08 37 30.0          19.6 RtEU012J04
         K12TN1R KC2012 10 15.87596 00 03 07.02 -08 40 53.1          19.3 RtEU012J04
         K12TN1R |C2012 10 15.99655 00 02 29.95 -09 24 24.1          19.9 VuEU012807
         K12TN1R |C2012 10 15.99950 00 02 28.94 -09 25 30.7          19.7 VuEU012807
         K12TN1R KC2012 10 16.15743500 01 35.71 -10 26 14.2          19.3 VrEU012H21
         K12TN1R KC2012 10 16.16055800 01 34.68 -10 27 22.2          19.3 VrEU012H21
         K12TN1R KC2012 10 16.16376800 01 33.55 -10 28 34.3          19.2 VrEU012H21
         K12TN1R KC2012 10 16.16605800 01 32.78 -10 29 25.1          19.4 VrEU012H21
         K12TN1R KC2012 10 16.35370 00 00 30.35 -11 37 54.4          19.7 RoEU012291
         K12TN1R KC2012 10 16.35494 00 00 29.91 -11 38 21.3          19.6 RoEU012291
         K12TN1R KC2012 10 16.35618 00 00 29.51 -11 38 48.2          19.7 RoEU012291
         K12TN1R  C2012 10 17.11249 23 56 48.59 -16 04 55.7          19.5 RoEU012H01
         K12TN1R  C2012 10 17.11976 23 56 46.21 -16 07 24.3          20.0 RoEU012H01
         K12TN1R  C2012 10 17.12646 23 56 44.03 -16 09 41.5          19.7 RoEU012H01
         K12TN1R  C2012 10 17.13299 23 56 41.88 -16 11 54.9          19.6 RoEU012H01
    
    Observer details:
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
    807 Cerro Tololo.  Observers T. Linder, R. Holmes, R. Sampson.  0.41-m f/11
        Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer J. A. Johnson.  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.
    J04 ESA Optical Ground Station, Tenerife.  Observer P. Ruiz.  Measurers
        D. Koschny, A. Knoefel, M. Busch.  1.0-m f/4.4 reflector + CCD.
    
    Orbital elements:
    2012 TR231                                               Earth MOID = 0.0737 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M 183.42495              (2000.0)            P               Q
    n   1.28301777     Peri.  347.36844     -0.97954732     +0.07192182
    a   0.8387791      Node   199.92981     -0.09984924     -0.98457888
    e   0.2909996      Incl.   33.45625     -0.17469164     +0.15947314
    P   0.77           H   23.9           G   0.15           U   7
    Residuals in seconds of arc
    121014 G96  0.1+  0.1-    121015 H01  0.1-  0.2-    121015 807  0.1+  0.6-
    121014 G96  0.1+  0.3+    121015 H01  0.3-  0.2+    121016 H21  0.5-  0.7-
    121014 G96  0.5-  1.7-    121015 H01  0.1+  0.1+    121016 H21  0.3+  0.5+
    121014 G96  0.0   0.3-    121015 H01  0.0   0.0     121016 H21  0.0   0.4-
    121014 G96 (0.2+  2.5+)   121015 H36  0.5+  0.5+    121016 H21  0.3+  0.5-
    121014 G96  0.1+  0.2-    121015 H36  0.2-  0.8-    121016 291  0.0   0.4+
    121014 G96  0.1+  0.7+    121015 H36  0.1+  0.7-    121016 291  0.3-  0.4+
    121014 G96  0.0   0.2+    121015 H36  0.1+  0.4+    121016 291  0.1-  0.5+
    121014 291  0.1-  0.2+    121015 H36  0.1+  0.9-    121017 H01  0.1+  0.2-
    121014 291  0.0   0.5+    121015 J04  0.0   0.2+    121017 H01  0.0   0.0
    121014 J04  0.2+  0.2+    121015 J04  0.0   0.1+    121017 H01  0.1+  0.2-
    121014 J04  0.1+  0.1+    121015 J04  0.0   0.0     121017 H01  0.0   0.2-
    121014 J04  0.1+  0.6+    121015 807  0.2+  0.3-
    
    Ephemeris:
    2012 TR231               a,e,i = 0.84, 0.29, 33                  q = 0.5947
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 09 17    02 58 24.1 +72 00 11   0.2619  1.0789    99.3    66.8    23.5
    ...
    2012 10 02    01 32 28.0 +58 39 19   0.1357  1.0821   123.7    50.3    21.6
    ...
    2012 10 10    00 37 40.6 +29 41 16   0.08506 1.0770   156.2    21.9    19.8
    ...
    2012 10 16    00 02 24.4 -09 26 07   0.08173 1.0701   152.5    25.4    19.8
    2012 10 17    23 57 18.5 -15 25 01   0.08511 1.0687   146.6    30.9    20.0
    2012 10 18    23 52 27.0 -20 51 47   0.08939 1.0672   140.9    36.1    20.3
    ...
    2012 10 24    23 28 11.9 -42 46 24   0.1276  1.0568   116.0    57.8    21.6
    ...
    2012 11 01    23 06 53.5 -55 22 49   0.1918  1.0388    98.7    70.8    22.9
    ...
    2012 11 16    22 46 45.7 -64 01 10   0.3132  0.9930    81.6    80.2    24.2
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-U12
    

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