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  • MPEC 2009-W44 : 2009 WD7

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    M.P.E.C. 2009-W44                                Issued 2009 Nov. 19, 23:18 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.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       2009 WD7
    
    Observations:
         K09W07D* C2009 11 19.37112 03 38 26.88 +28 28 32.3          20.8 V EW044G96
         K09W07D  C2009 11 19.37699 03 38 29.83 +28 28 25.2          20.4 V EW044G96
         K09W07D  C2009 11 19.38282 03 38 32.78 +28 28 18.6          20.6 V EW044G96
         K09W07D  C2009 11 19.38874 03 38 35.70 +28 28 11.2          20.8 V EW044G96
         K09W07D  C2009 11 19.41477 03 38 48.80 +28 27 39.3          20.7 V EW044G96
         K09W07D  C2009 11 19.41534 03 38 49.09 +28 27 38.1          20.8 V EW044G96
         K09W07D  C2009 11 19.41590 03 38 49.34 +28 27 37.8          20.9 V EW044G96
         K09W07D  C2009 11 19.41648 03 38 49.63 +28 27 36.5          20.8 V EW044G96
         K09W07D  C2009 11 19.42926 03 38 56.11 +28 27 20.7          21.1 V EW044G96
         K09W07D  C2009 11 19.42983 03 38 56.36 +28 27 20.2          21.1 V EW044G96
         K09W07D  C2009 11 19.43041 03 38 56.68 +28 27 19.1          21.1 V EW044G96
         K09W07D  C2009 11 19.43097 03 38 56.97 +28 27 18.7          22.1 V EW044G96
         K09W07D  C2009 11 19.92339 03 43 18.23 +28 18 15.1          21.4 V EW044B21
         K09W07D  C2009 11 19.92844 03 43 20.60 +28 18 09.9          20.7 V EW044B21
         K09W07D  C2009 11 19.93348 03 43 22.97 +28 18 05.5          20.4 V EW044B21
    
    Observer details:
    B21 Gaisberg Observatory, Schaerding.  Observer R. Gierlinger.  0.7-m f/3.1
        Newtonian reflector + CCD.
    G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  Measurers E. C. Beshore,
        A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    
    Orbital elements:
    2009 WD7                                                 Earth MOID = 0.0177 AU
    Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
    M  20.29221              (2000.0)            P               Q
    n   0.26568067     Peri.  108.66405     +0.93750884     -0.34736936
    a   2.3964190      Node   271.66647     +0.31111050     +0.86291234
    e   0.5872141      Incl.    1.16314     +0.15584428     +0.36703791
    P   3.71           H   25.6           G   0.15           U   8
    Residuals in seconds of arc
    091119 G96  0.2-  0.1-    091119 G96  0.2+  0.2-    091119 G96  0.0   0.2-
    091119 G96  0.0   0.2-    091119 G96  0.2-  0.2+    091119 G96  0.1+  0.1+
    091119 G96  0.4+  0.3+    091119 G96  0.2-  0.4-    091119 B21  0.0   0.3-
    091119 G96  0.2-  0.0     091119 G96  0.2+  0.0     091119 B21  0.0   0.3-
    091119 G96  0.2+  0.3+    091119 G96  0.3-  0.2+    091119 B21  0.1+  0.6+
    
    Ephemeris:
    2009 WD7                 a,e,i = 2.40, 0.59, 1                   q = 0.9892
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2009 11 15    02 45.20   +29 28.7    0.0605   1.048   166.3    12.9    20.4
    2009 11 20    03 43.92   +28 17.5    0.0839   1.071   171.3     8.0    20.9
    2009 11 25    04 15.05   +26 52.3    0.111    1.097   173.2     6.1    21.5
    2009 11 30    04 33.13   +25 44.0    0.140    1.126   175.4     4.1    22.0
    2009 12 05    04 44.51   +24 52.1    0.171    1.157   177.5     2.2    22.3
    
    Sonia Keys                   (C) Copyright 2009 MPC           M.P.E.C. 2009-W44
    

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