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  • MPEC 2013-M23 : 2012 HR15

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    M.P.E.C. 2013-M23                                Issued 2013 June 20, 11:23 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
    
                                       2012 HR15
    
                               Revision to MPEC 2012-H65
    
    Additional Observations:
         K12H15R 2C2013 05 07.50486215 04 07.508+07 44 41.96         22.5 RtEM023568
         K12H15R 2C2013 05 07.50859715 04 07.283+07 44 42.36         22.6 RtEM023568
         K12H15R 2C2013 05 07.51231815 04 07.068+07 44 42.66         22.6 RtEM023568
         K12H15R 2C2013 05 08.53391915 03 07.313+07 46 14.98         22.6 RtEM023568
         K12H15R 2C2013 05 08.53765215 03 07.086+07 46 15.24         22.4 RtEM023568
         K12H15R 2C2013 05 08.54137515 03 06.866+07 46 15.65         22.5 RtEM023568
    
    Observer details:
    568 Mauna Kea.  Observer M. Micheli.  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
    130507 568 12.5-  3.8+    130508 568 12.3-  3.8+    MPO234430   +0.00083 day
    
    Orbital elements:
    2012 HR15                                                Earth MOID = 0.2685 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 115.50744              (2000.0)            P               Q
    n   0.25247776     Peri.  332.40941     +0.54562015     -0.69897112
    a   2.4792517      Node    80.80220     +0.82896031     +0.36919923
    e   0.7382985      Incl.   27.92658     +0.12297750     +0.61247963
    P   3.90           H   16.9           G   0.15           U   3
    Residuals in seconds of arc
    120422 703  0.2+  0.9-    120425 G96  0.1-  0.1-    120511 H21  0.3+  0.0
    120422 703  0.7+  0.2+    120425 G96  0.0   0.2+    120511 H21  0.0   0.1-
    120422 703  0.6+  0.1+    120425 G96  0.2-  0.0     120511 H21  0.1+  0.1+
    120422 703  0.8+  2.5+    120425 G96  0.3-  0.1-    120515 H21  0.3+  0.1-
    120422 703  0.2-  0.4+    120425 G96  0.0   0.0     120515 H21  0.1+  0.0
    120422 703  0.7+  0.1+    120425 G96  0.1-  0.0     120515 H21  0.2+  0.2-
    120422 703  0.9+  0.2-    120425 G96  0.2-  0.2-    120520 H21  0.1+  0.3-
    120423 H36  0.4-  0.3-    120425 G96  0.0   0.1-    120520 H21  0.1+  0.2+
    120423 H36  0.0   0.6-    120425 G96  0.1-  0.0     120520 H21  0.3+  0.3+
    120423 H36  0.2-  0.3-    120425 G96  0.1-  0.1+    120531 291  0.1+  0.4+
    120423 H36  0.1-  0.5-    120501 H21  0.4-  1.0-    120531 291  0.1+  0.2-
    120424 H36  0.2-  0.0     120501 H21  0.1+  0.4-    120615 291  0.1-  0.1-
    120424 H36  0.7+  0.2+    120501 H21  0.1-  0.3-    120615 291  0.0   0.1+
    120424 H36  0.1-  0.0     120503 H21  0.3-  0.1+    120615 291  0.4+  0.2-
    120424 H21  0.3+  0.4+    120503 H21  0.3-  0.0     130507 568  0.0   0.0
    120424 H21  0.1+  0.5+    120503 H21  0.2-  0.1-    130507 568  0.1-  0.1+
    120424 H21  0.2+  0.5+    120510 H21  0.2-  0.5-    130507 568  0.0   0.0
    120425 H21  0.4-  0.2-    120510 H21  0.1+  0.3-    130508 568  0.1+  0.0
    120425 H21  0.5-  0.0     120510 H36  0.7-  0.8+    130508 568  0.0   0.1-
    120425 H21  0.4-  0.2-    120510 H21  0.1-  0.3-    130508 568  0.0   0.0
    120425 G96  0.1-  0.1+    120510 H36  0.7-  0.1+
    120425 G96  0.4-  0.2+    120510 H36  0.9-  0.0
    
    Ephemeris:
    2012 HR15                a,e,i = 2.48, 0.74, 28                  q = 0.6488
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 05 21    14 51 23.0 +07 52 19   3.1159  4.0130   148.4     7.6    22.9
    ...
    2013 06 05    14 39 17.1 +07 29 08   3.2628  4.0523   135.8    10.1    23.2
    ...
    2013 06 13    14 34 09.6 +07 04 31   3.3624  4.0721   128.4    11.3    23.3
    ...
    2013 06 19    14 31 01.0 +06 41 18   3.4449  4.0864   122.9    12.1    23.4
    2013 06 20    14 30 33.2 +06 37 04   3.4592  4.0887   121.9    12.2    23.4
    2013 06 21    14 30 06.4 +06 32 45   3.4737  4.0911   121.0    12.3    23.4
    ...
    2013 06 27    14 27 47.6 +06 04 59   3.5636  4.1047   115.5    12.9    23.5
    ...
    2013 07 05    14 25 40.2 +05 23 34   3.6900  4.1222   108.2    13.6    23.6
    ...
    2013 07 20    14 24 32.5 +03 55 51   3.9399  4.1529    95.0    14.1    23.8
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-M23
    

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