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  • MPEC 2006-U18 : 2004 HK12

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    M.P.E.C. 2006-U18                                Issued 2006 Oct. 20, 12:34 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://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       2004 HK12
    
                               Revision to MPEC 2004-H48
    
    Additional Observations:
         K04H12K  C2006 10 17.25918 01 55 58.11 +17 39 08.0          19.8 V EU018691
         K04H12K  C2006 10 17.27659 01 55 57.00 +17 38 20.4          19.7 V EU018691
         K04H12K  C2006 10 17.29401 01 55 55.88 +17 37 33.0          19.8 V EU018691
         K04H12K  C2006 10 20.20977 01 53 08.88 +15 21 31.5          19.6 V EU018691
         K04H12K  C2006 10 20.22713 01 53 07.73 +15 20 42.6          19.5 V EU018691
         K04H12K  C2006 10 20.24448 01 53 06.51 +15 19 54.6          19.2 V EU018691
    
    Observer details:
    691 Steward Observatory, Kitt Peak.  Observers T. H. Bressi, J. V. Scotti.
        0.9-m f/3 reflector + CCD.
    
    Orbital elements:
    2004 HK12
    Epoch 2006 Sept. 22.0 TT = JDT 2454000.5                MPC
    M 249.65851              (2000.0)            P               Q
    n   0.60742983     Peri.  275.53539     -0.56955025     -0.80574359
    a   1.3808250      Node   211.02690     +0.82183042     -0.55476862
    e   0.0482108      Incl.   18.37084     +0.01439696     -0.20738625
    P   1.62           H   19.7           G   0.15           U   4
    Residuals in seconds of arc
    040421 704  0.3-  0.0     040422 704  0.2+  0.3-    040425 474  0.3-  0.4+
    040421 704  0.3-  0.6+    040422 704  0.4+  0.1+    040430 413  0.7-  0.2-
    040421 704  0.3-  0.2+    040422 704  0.6+  0.5+    040430 413  0.2-  0.1-
    040421 246  1.4+  0.3+    040422 704  0.4-  0.7-    040608 413  0.1+  0.4+
    040421 246  0.8+  0.0     040422 704  0.8+  0.6+    040608 413  0.4-  0.1+
    040421 246  0.1-  0.3-    040422 704  0.3+  0.4-    061017 691  0.1+  0.2-
    040421 246  0.7+  0.1+    040422 704  0.3-  0.3+    061017 691  0.2+  0.2-
    040422 704  0.2+  0.1+    040422 E14  0.9-  0.8-    061017 691  0.3+  0.1+
    040422 704  0.1-  0.7+    040422 E14  0.9-  0.7-    061020 691  0.3+  0.2-
    040422 704  0.7-  0.1+    040422 E14  0.0   0.2-    061020 691  0.1+  0.0
    040422 704  0.2+  0.2+    040425 474  0.1+  0.6+    061020 691  1.1-  1.2+
    040422 704  0.2+  0.1+    040425 474  0.5+  0.2-
    040422 704  0.4-  0.1-    040425 474  0.3-  1.5+
    
    Ephemeris:
    2004 HK12                a,e,i = 1.38, 0.05, 18                  q = 1.3143
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2006 10 12    02 00.61   +21 28.4    0.411    1.393   160.9    13.5    19.3
    2006 10 22    01 51.39   +13 56.1    0.392    1.386   176.6     2.4    18.6
    2006 11 01    01 42.11   +05 54.0    0.394    1.379   166.8     9.5    19.0
    2006 11 11    01 35.52   -01 14.2    0.418    1.372   151.5    20.2    19.5
    2006 11 21    01 33.18   -06 37.1    0.459    1.365   138.2    28.8    20.0
    2006 12 01    01 35.63   -10 06.4    0.512    1.359   127.2    35.3    20.4
    2006 12 11    01 42.50   -12 00.1    0.571    1.352   118.2    39.9    20.7
    2006 12 21    01 53.09   -12 40.4    0.634    1.346   110.7    43.2    21.0
    2006 12 31    02 06.80   -12 26.7    0.697    1.340   104.4    45.3    21.3
    2007 01 10    02 23.06   -11 34.4    0.759    1.334    99.1    46.7    21.5
    2007 01 20    02 41.42   -10 14.4    0.819    1.329    94.5    47.6    21.7
    2007 01 30    03 01.65   -08 34.9    0.877    1.325    90.5    48.0    21.8
    2007 02 09    03 23.48   -06 43.0    0.931    1.321    87.0    48.2    22.0
    
    Timothy B. Spahr             (C) Copyright 2006 MPC           M.P.E.C. 2006-U18
    

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