• MPC Preparation (Info)

  • MPEC 2012-J13 : 2011 CO2

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    M.P.E.C. 2012-J13                                Issued 2012 May 3, 12:56 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
    
                                       2011 CO2
    
                               Revision to MPEC 2011-C19
    
    Additional Observations:
         K11C02O 2C2012 04 23.56130918 09 57.453-02 04 13.00         23.5 RtEJ013568
         K11C02O 2C2012 04 23.57229218 09 57.236-02 04 12.20         23.6 RtEJ013568
         K11C02O 2C2012 04 25.59701318 09 17.499-02 01 42.86         23.6 RtEJ013568
         K11C02O 2C2012 04 25.60796918 09 17.251-02 01 42.10         23.6 RtEJ013568
    
    Observer details:
    568 Mauna Kea.  Observers M. Micheli, G. T. Elliott.  Measurer D. J. Tholen.
        2.24-m University of Hawaii reflector.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    120423 568 0.05+ 0.02-    120425 568 0.05+ 0.02-    MPO196807   +0.0012 day
    
    Orbital elements:
    2011 CO2                                                 Earth MOID = 0.2656 AU
    Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
    M 111.34992              (2000.0)            P               Q
    n   0.28816459     Peri.  352.48886     -0.13540005     -0.84384590
    a   2.2700860      Node   104.15494     +0.93460493     -0.28274462
    e   0.4511871      Incl.   32.37645     +0.32890796     +0.45604777
    P   3.42           H   18.7           G   0.15           U   1
    Residuals in seconds of arc
    110201 F51  1.0-  0.9-    110208 291  1.2-  1.8-    110301 291  0.3-  0.4-
    110201 F51  0.1+  0.6+    110208 291  0.4-  0.2-    110301 291  0.6-  0.2+
    110201 F51  0.1-  0.2+    110208 291  0.8-  0.5-    110301 291  0.7-  0.3-
    110201 F51  0.3-  0.5-    110213 G96  1.2-  0.1-    110303 291  0.7-  0.3-
    110202 568  0.3+  0.2+    110213 G96  1.1-  0.2-    110303 291  1.1+  0.3-
    110202 568  0.2+  0.2+    110213 G96  1.3-  0.5-    110303 291  0.8-  0.9+
    110205 G96  0.2-  0.4+    110213 G96  0.5-  0.4-    110413 568  0.1+  0.0
    110205 G96  0.3-  0.1-    110222 291  0.7-  0.1-    110413 568  0.1+  0.0
    110205 G96  0.3+  0.2+    110222 291  1.0-  0.4-    120423 568  0.0   0.0
    110205 G96  0.2+  0.1-    110222 291  0.2-  0.3-    120423 568  0.1-  0.0
    110206 291  0.5-  0.5-    110223 291  0.4-  0.8-    120425 568  0.1+  0.1+
    110206 291  0.6-  0.4+    110223 291  0.8-  0.8-    120425 568  0.1+  0.1+
    110206 291  0.7-  0.1-    110223 291  0.2-  0.2+
    
    Ephemeris:
    2011 CO2                 a,e,i = 2.27, 0.45, 32                  q = 1.2459
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 04 03    18 10 56.7 -02 41 33   2.6604  2.9980    99.9    19.2    24.2
    ...
    2012 04 18    18 11 14.6 -02 12 27   2.4962  3.0377   113.4    17.7    24.0
    ...
    2012 04 26    18 09 08.9 -02 01 14   2.4157  3.0577   121.0    16.4    23.9
    ...
    2012 05 02    18 06 31.5 -01 56 01   2.3606  3.0721   126.8    15.2    23.8
    2012 05 03    18 06 00.1 -01 55 28   2.3519  3.0745   127.8    15.0    23.8
    2012 05 04    18 05 27.2 -01 55 01   2.3434  3.0769   128.8    14.8    23.8
    ...
    2012 05 10    18 01 40.1 -01 54 29   2.2960  3.0907   134.7    13.4    23.7
    ...
    2012 05 18    17 55 21.7 -02 00 26   2.2438  3.1084   142.6    11.4    23.6
    ...
    2012 06 02    17 40 27.5 -02 35 35   2.1876  3.1394   155.6     7.7    23.4
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-J13
    

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