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  • MPEC 2013-Q06 : 2009 WH106

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    M.P.E.C. 2013-Q06                                Issued 2013 Aug. 16, 21:26 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
    
                                      2009 WH106
    
                              Revision to MPEC 2009-W125
    
    Additional Observations:
         K09WA6H  C2013 08 15.35454 21 03 34.889+02 18 54.87         19.0 iLEQ006F51
         K09WA6H  C2013 08 15.41366 21 03 37.309+02 23 33.89         19.3 rLEQ006F51
         K09WA6H  C2013 08 15.42419 21 03 37.729+02 24 23.70         19.4 rLEQ006F51
         K09WA6H KC2013 08 16.83764 21 05 25.34 +04 23 09.7                qEQ006595
         K09WA6H KC2013 08 16.84781 21 05 25.97 +04 24 04.6          19.5 VqEQ006595
         K09WA6H KC2013 08 16.85881 21 05 26.65 +04 25 04.5          19.7 VqEQ006595
         K09WA6H KC2013 08 16.87135 21 05 27.96 +04 26 08.1                qEQ006J95
         K09WA6H KC2013 08 16.87653 21 05 28.31 +04 26 36.1                qEQ006J95
         K09WA6H KC2013 08 16.88171 21 05 28.63 +04 27 04.0          18.6 RqEQ006J95
    
    Observer details:
    595 Farra d'Isonzo.  Observers L. Bittesini, M. Coccolo, E. Pettarin, F. Piani.
        Measurer E. Pettarin.  0.61-m f/4.0 reflector + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers N. Primak, A. Schultz. T. Goggia,
        M. Willman.  Measurer PS1 Science Consortium.  1.8-m Ritchey-Chretien
        + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or integer in degrees), reference and Delta-T
    130815 F51   26+   12+    130816 J95   28+   14+    MPO167794   -5.0 day
    
    Orbital elements:
    2009 WH106                                               Earth MOID = 0.0406 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 318.63650              (2000.0)            P               Q
    n   0.25045698     Peri.   98.53974     +0.95482270     -0.29289234
    a   2.4925696      Node   278.50284     +0.24872747     +0.88022165
    e   0.6190479      Incl.    2.91388     +0.16262920     +0.37339512
    P   3.94           H   22.6           G   0.15           U   1
    Residuals in seconds of arc
    091126 703  0.2-  0.8+    091127 G96  0.2+  0.1-    091205 H21  0.2-  0.4+
    091126 703  0.1+  0.2-    091127 G96  0.3+  0.2+    091205 926  0.3+  0.0
    091126 703  0.6-  1.2-    091127 926  0.3+  0.2+    091205 926  0.0   0.2+
    091126 703  1.1-  0.1-    091127 926  1.2+  0.3+    091205 926  0.6+  0.1+
    091126 703 (2.7-  0.3+)   091127 926  1.0-  0.3+    091219 291  0.8+  0.1-
    091126 703  1.2-  1.2+    091128 H21  0.2-  0.4+    091219 291  0.3-  0.5-
    091126 703 (2.9-  0.1+)   091128 H21  0.0   0.1+    091219 291  0.9+  0.8-
    091126 703  0.8+  0.0     091128 H21  0.4-  0.1-    091226 291  0.3-  0.2+
    091126 G96  0.6+  0.4+    091129 H21  0.2-  0.0     091226 291  1.0-  0.9-
    091126 G96  0.2+  0.1-    091129 H21  0.3+  0.3+    091226 291  0.1+  0.5+
    091126 G96  0.4+  0.2+    091129 H21  0.5+  0.6+    130815 F51  0.1-  0.2-
    091126 G96  0.6+  0.1-    091201 H21  0.0   1.0-    130815 F51  0.0   0.1-
    091126 G96  0.9-  0.6-    091201 H21  0.7-  0.8-    130815 F51  0.1-  0.1-
    091126 J95  0.0   0.3+    091201 H21  0.8-  0.7-    130816 595  0.6+  0.5-
    091126 J95  0.1+  0.2-    091204 H21  0.9-  0.6-    130816 595  0.4+  0.8-
    091126 J95  0.1+  0.1-    091204 H21  0.3-  0.0     130816 595  0.3+  0.6-
    091127 G96  0.1+  0.1-    091204 H21  1.2+  1.4+    130816 J95  0.0   0.5+
    091127 G96  0.1+  0.2-    091205 H21  0.5-  0.2+    130816 J95  0.1+  0.3+
    091127 G96  0.6+  0.1-    091205 H21  0.3-  0.3+    130816 J95  0.2-  0.1-
    
    Ephemeris:
    2009 WH106               a,e,i = 2.49, 0.62, 3                   q = 0.9495
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 07 17    20 51 06.3 -13 40 19   0.3604  1.3645   162.6    12.9    21.8
    ...
    2013 08 01    20 55 23.9 -08 50 21   0.2292  1.2415   170.4     7.8    20.4
    ...
    2013 08 09    20 58 32.5 -04 04 25   0.1694  1.1798   167.4    10.8    19.8
    ...
    2013 08 15    21 03 09.9 +01 51 53   0.1290  1.1361   161.8    16.1    19.3
    2013 08 16    21 04 18.6 +03 11 21   0.1227  1.1291   160.6    17.3    19.2
    2013 08 17    21 05 36.5 +04 38 42   0.1165  1.1221   159.3    18.6    19.1
    ...
    2013 08 23    21 18 35.6 +17 24 42   0.08250 1.0825   148.6    29.1    18.6
    ...
    2013 08 31    22 25 42.4 +53 52 00   0.05460 1.0357   117.4    60.0    18.5
    ...
    2013 09 15    07 39 01.8 +50 47 30   0.1002  0.9724    67.9   106.6    21.5
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-Q06
    

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