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  • MPEC 2013-M44 : 2011 OR15

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    M.P.E.C. 2013-M44                                Issued 2013 June 27, 17:49 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 http://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2011 OR15
    
                               Revision to MPEC 2011-O55
    
    Additional Observations:
         K11O15R 2C2013 05 08.56520418 58 42.730-15 19 31.59         22.9 RtEM044568
         K11O15R 2C2013 05 08.57596818 58 42.888-15 19 29.40         23.2 RtEM044568
         K11O15R 2C2013 06 07.46901018 49 47.171-13 59 52.59         23.1 RtEM044568
         K11O15R 2C2013 06 07.47633218 49 46.714-13 59 52.02         22.7 RtEM044568
    
    Observer details:
    568 Mauna Kea.  Observers M. Micheli, D. J. Tholen.  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, reference and Delta-T
    130508 568 22.3+  0.8+    130607 568 33.8+  1.5+    MPO221223   -0.013 day
    
    Orbital elements:
    2011 OR15                                           PHA, Earth MOID = 0.0391 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 256.47657              (2000.0)            P               Q
    n   0.46268339     Peri.  250.96249     +0.79508229     -0.60454885
    a   1.6555671      Node   146.18397     +0.58412625     +0.74170647
    e   0.4430443      Incl.    5.01291     +0.16321972     +0.29050335
    P   2.13           H   21.0           G   0.15           U   1
    Residuals in seconds of arc
    110726 F51  0.1-  0.2+    110801 H21  0.1-  0.1+    110904 291  0.7+  0.2-
    110726 F51  0.1+  0.1+    110802 J04  0.2-  0.2+    110904 291  0.3+  0.4+
    110726 F51  1.5+  0.6+    110802 J04  0.3-  0.1+    110904 291  0.7+  0.1+
    110726 F51  0.4+  0.2+    110802 J04  0.3-  0.0     110918 291  1.1-  0.5+
    110728 F65  0.5-  0.0     110802 H21  0.3-  0.0     110918 291  0.4+  0.2-
    110728 F65  0.4-  0.0     110802 H21  0.1-  0.1-    110918 291  0.5+  0.2+
    110728 F65  0.3-  0.3+    110802 H21  0.2-  0.0     111224 H21  0.4-  0.3+
    110728 F65  0.5-  0.0     110810 I93  0.3-  0.1+    111224 H21  0.3-  0.7+
    110728 F65  0.6-  0.1+    110810 I93  0.4-  0.1+    111224 H21  0.0   0.5+
    110728 F65  0.5-  0.0     110810 I93  0.4-  0.0     120103 H21  0.2-  0.6-
    110728 F65  0.6-  0.2+    110810 I93  0.2+  0.1-    120103 H21  0.2-  0.3-
    110728 F65  0.5-  0.1+    110826 291  1.3-  0.3+    120103 H21  0.1-  0.1-
    110728 F65  0.5-  0.1+    110826 291  1.2-  0.3+    120118 695  0.4-  0.0
    110729 H21  0.0   0.3-    110827 474  0.3-  0.0     120118 695  0.1+  0.2-
    110729 H21  0.1+  0.5-    110827 474  0.7-  0.6+    120118 695  0.0   0.2+
    110729 H21  0.1-  0.0     110827 474  0.6+  0.7-    120119 F51  0.2+  0.3+
    110729 H21  0.1+  0.1-    110827 474  1.5-  0.1+    120119 F51  0.1+  0.3+
    110729 H21  0.0   0.0     110828 H21  0.3+  0.2+    120119 F51  0.1+  0.3+
    110730 204  0.5-  0.0     110828 H21  0.2+  0.0     120119 F51  0.1+  0.2+
    110730 204  0.1-  0.1+    110828 H21  0.3+  0.1-    130508 568  0.0   0.0
    110730 204  0.3-  0.3+    110828 H21  0.2+  0.1-    130508 568  0.0   0.0
    110801 H21  0.2-  0.1+    110830 E12  0.0   0.2-    130607 568  0.0   0.0
    110801 H21  0.0   0.1+    110830 E12  0.6+  0.6-    130607 568  0.0   0.0
    
    Ephemeris:
    2011 OR15                a,e,i = 1.66, 0.44, 5                   q = 0.9221
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 05 28    18 57 19.4 -14 19 40   0.9915  1.8946   141.8    19.3    23.3
    ...
    2013 06 12    18 44 52.9 -13 55 08   0.8364  1.8184   158.1    12.0    22.6
    ...
    2013 06 20    18 33 54.3 -13 53 40   0.7714  1.7756   166.6     7.6    22.2
    ...
    2013 06 26    18 23 58.4 -13 58 37   0.7318  1.7425   170.5     5.5    22.0
    2013 06 27    18 22 12.1 -13 59 57   0.7260  1.7369   170.7     5.4    21.9
    2013 06 28    18 20 24.0 -14 01 27   0.7204  1.7313   170.6     5.5    21.9
    ...
    2013 07 04    18 09 07.4 -14 13 31   0.6916  1.6971   166.6     8.0    21.9
    ...
    2013 07 12    17 53 36.5 -14 37 40   0.6656  1.6502   157.1    13.9    22.0
    ...
    2013 07 27    17 27 54.8 -15 45 17   0.6498  1.5588   137.7    26.0    22.2
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-M44
    

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