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  • MPEC 2012-L20 : 2012 HH2

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    M.P.E.C. 2012-L20                                Issued 2012 June 10, 16:21 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 HH2
    
                               Revision to MPEC 2012-J31
    
    Additional Observations:
         K12H02H {C2012 06 09.18035913 18 54.756+13 34 29.52         20.5 RtEL020695
         K12H02H {C2012 06 09.18893513 18 54.719+13 34 29.21         21.0 RtEL020695
         K12H02H {C2012 06 09.20175013 18 54.686+13 34 28.84         21.0 RtEL020695
         K12H02H {C2012 06 09.21511013 18 54.644+13 34 28.35         21.1 RtEL020695
         K12H02H {C2012 06 10.18074713 18 51.851+13 33 58.65         21.0 RtEL020695
         K12H02H {C2012 06 10.19397913 18 51.794+13 33 58.01         21.1 RtEL020695
         K12H02H {C2012 06 10.20875713 18 51.788+13 33 57.53         20.7 RtEL020695
         K12H02H {C2012 06 10.22041113 18 51.714+13 33 57.31         21.7 RtEL020695
    
    Observer details:
    695 Kitt Peak.  Observer T. Vorobjov.  1.3-m f/13 Cassegrain + CCD.
    
    Orbital elements:
    2012 HH2
    Epoch 2012 Mar. 14.0 TT = JDT 2456000.5                 MPC
    M  24.32123              (2000.0)            P               Q
    n   0.00479663     Peri.  100.29264     -0.81860840     -0.41336964
    a  34.8213030      Node    56.42808     +0.11441244     -0.79771869
    e   0.1626079      Incl.   28.59318     +0.56284108     -0.43905629
    P 205              H    6.2           G   0.15           U   7
    Residuals in seconds of arc
    120419 H21  0.2-  0.4-    120423 H21  0.0   0.2+    120511 695  0.1+  0.2+
    120419 H21  0.1-  0.1+    120423 H21  0.0   0.2+    120515 F65  0.6-  0.1-
    120419 H21  0.2-  0.1+    120423 H21  0.2-  0.2+    120515 F65  0.1-  0.0
    120419 H21  0.0   0.1-    120501 H01  0.1+  0.0     120609 695  0.0   0.0
    120420 G96  0.1-  0.1+    120501 H01  0.0   0.2-    120609 695  0.2-  0.0
    120420 G96  0.5-  0.1-    120501 H01  0.1+  0.1-    120609 695  0.1-  0.0
    120420 G96  0.4-  0.2+    120501 H01  0.0   0.0     120609 695  0.1-  0.1-
    120420 G96  0.1-  0.0     120509 204  0.4-  0.1-    120610 695  0.0   0.3+
    120421 H01  0.0   0.3+    120509 204  0.2+  0.1+    120610 695  0.2-  0.1+
    120421 H01  0.1+  0.4+    120510 695  0.1-  0.2-    120610 695  0.3+  0.1+
    120421 H01  0.0   0.3+    120510 695  0.4-  0.6+    120610 695  0.3-  0.2+
    120421 H01  0.0   0.3+    120511 695  0.1-  0.2+
    120423 H21  0.5+  0.1-    120511 695  0.2+  0.2+
    
    Ephemeris:
    2012 HH2                 a,e,i = 34.82, 0.16, 29                 q = 29.159
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 05 11    13 21 03.1 +13 42 17  29.1156 29.8755   138.1     1.3    21.1
    ...
    2012 05 26    13 19 47.3 +13 40 06  29.2839 29.8795   125.2     1.6    21.1
    ...
    2012 06 03    13 19 15.1 +13 37 21  29.3899 29.8817   118.1     1.7    21.1
    ...
    2012 06 09    13 18 55.3 +13 34 35  29.4753 29.8833   112.8     1.8    21.1
    2012 06 10    13 18 52.4 +13 34 04  29.4899 29.8836   111.9     1.8    21.1
    2012 06 11    13 18 49.6 +13 33 32  29.5047 29.8839   111.0     1.8    21.2
    ...
    2012 06 17    13 18 35.0 +13 30 01  29.5953 29.8855   105.7     1.9    21.2
    ...
    2012 06 25    13 18 22.3 +13 24 28  29.7205 29.8877    98.5     1.9    21.2
    ...
    2012 07 10    13 18 19.5 +13 11 45  29.9607 29.8917    85.1     1.9    21.2
    
    The recovery observations published on MPEC 2012-J31 from April 2002 and
    February 2003 are to be deleted entirely.
    
    Timothy B. Spahr             (C) Copyright 2012 MPC           M.P.E.C. 2012-L20
    

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