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  • MPEC 2013-C23 : 2006 WS1

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    M.P.E.C. 2013-C23                                Issued 2013 Feb. 6, 17:53 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
    
                                       2006 WS1
    
                               Revision to MPEC 2006-W36
    
    Additional Observations:
         K06W01S  C2013 01 17.51314 10 53 05.13 +05 31 56.4          20.6 VrEC023G96
         K06W01S  C2013 01 17.51880 10 53 04.92 +05 31 49.5          20.6 VrEC023G96
         K06W01S  C2013 01 17.52448 10 53 04.70 +05 31 42.3          20.6 VrEC023G96
         K06W01S  C2013 01 17.53020 10 53 04.45 +05 31 35.1          20.5 VrEC023G96
         K06W01S  C2013 02 05.33470 10 24 41.11 -02 47 29.4          19.1 VuEC023703
         K06W01S  C2013 02 05.34216 10 24 39.85 -02 47 44.5          18.8 VuEC023703
         K06W01S  C2013 02 05.34961 10 24 38.52 -02 48 00.3          19.0 VuEC023703
         K06W01S  C2013 02 05.35704 10 24 37.40 -02 48 15.2          18.9 VuEC023703
         K06W01S  C2013 02 05.41532 10 24 27.42 -02 50 15.7          19.6 VuEC023703
         K06W01S  C2013 02 05.41738 10 24 27.02 -02 50 20.3          18.9 VuEC023703
         K06W01S  C2013 02 05.63497 10 23 51.58 -02 57 24.3          18.9 RoEC023474
         K06W01S  C2013 02 05.63637 10 23 51.34 -02 57 27.2          19.0 RoEC023474
         K06W01S  C2013 02 05.63777 10 23 51.11 -02 57 30.1          18.7 RoEC023474
         K06W01S  C2013 02 05.63916 10 23 50.86 -02 57 33.1          18.9 RoEC023474
         K06W01S  C2013 02 05.64056 10 23 50.62 -02 57 36.2          18.7 RoEC023474
         K06W01S KC2013 02 05.94401 10 23 01.05 -03 08 44.7          19.2 VqEC023C43
         K06W01S KC2013 02 05.94864 10 23 00.22 -03 08 53.7          19.2 VqEC023C43
         K06W01S KC2013 02 06.01024 10 22 49.71 -03 11 03.1          17.6 RuEC023958
         K06W01S KC2013 02 06.03167 10 22 46.08 -03 11 46.3          18.3 RuEC023958
         K06W01S  C2013 02 06.22090 10 22 14.88 -03 18 22.9          19.5 RoEC023G48
         K06W01S  C2013 02 06.22267 10 22 14.59 -03 18 26.4          19.4 RoEC023G48
         K06W01S  C2013 02 06.22446 10 22 14.27 -03 18 30.6          19.6 RoEC023G48
         K06W01S  C2013 02 06.22626 10 22 13.92 -03 18 34.1          19.5 RoEC023G48
    
    Observer details:
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
        P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    703 Catalina Sky Survey.  Observers A. R. Gibbs, F. C. Shelly.  Measurers
        A. Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        J. A. Johnson, R. A. Kowalski, S. M. Larson, R. H. McNaught, F. C. Shelly.
        0.68-m Schmidt + CCD.
    958 Observatoire de Dax.  Observers P. Dupouy, J. B. de Vanssay, G. Soulie.
        Measurer P. Dupouy.  0.43-m f/2.7 reflector + CCD.
    C43 Hoyerswerda.  Observer P. Lindner.  0.30-m f/6.3 Schmidt-Cassegrain + CCD.
    G48 Doc Greiner Research Obs., Rancho Hildalgo.  Observer M. Mills.  0.40-m
        f/10 Schmidt-Cassegrain + CCD.
    G96 Mt. Lemmon Survey.  Observer J. A. Johnson.  Measurers A. Boattini,
        E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or integer in degrees), reference and Delta-T
    130117 G96   31+   21-    130206 G48   39+   27-    MPO112986    -36 day
    
    Orbital elements:
    2006 WS1                                                 Earth MOID = 0.2063 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 335.07899              (2000.0)            P               Q
    n   0.73062201     Peri.  319.84210     +0.05837940     +0.97170867
    a   1.2208835      Node   312.16508     -0.81831014     -0.08472753
    e   0.4640899      Incl.   17.98425     -0.57180448     +0.22046201
    P   1.35           H   19.6           G   0.15           U   5
    Residuals in seconds of arc
    061119 G96  0.6-  0.4-    061124 291  0.2-  0.1+    130205 703  0.2-  0.1+
    061119 G96  0.2+  0.1-    061124 291  0.9+  0.6+    130205 703  0.9-  0.2-
    061119 G96  0.5-  0.2-    061127 291  1.1+  0.0     130205 474  0.2+  0.1-
    061119 G96  0.1+  0.3-    061127 291  0.6+  1.2+    130205 474  0.2+  0.0
    061119 G96  0.2-  0.0     061127 291  2.0+  0.2-    130205 474  0.4+  0.0
    061119 G96  0.0   0.1+    061212 G96  1.7-  0.1+    130205 474  0.2+  0.1-
    061119 G96  0.5+  0.1+    061212 G96  0.8-  0.5-    130205 474  0.2+  0.3-
    061119 G96  0.2-  0.2+    061212 G96  0.2+  0.5-    130205 C43  0.4+  0.3-
    061120 734  0.4-  0.7-    061212 G96  1.8-  1.1-    130205 C43  0.1-  0.4+
    061120 734  0.1-  0.1+    130117 G96  0.1-  0.0     130206 958  1.7-  1.2-
    061120 734  0.7-  0.3-    130117 G96  0.1+  0.1+    130206 958  0.1+  0.8+
    061120 734  0.3+  0.8-    130117 G96  0.1+  0.2-    130206 G48  0.5+  0.4+
    061120 G96  1.2-  0.1-    130117 G96  0.2-  0.3-    130206 G48  0.8+  0.7+
    061120 G96  0.9-  0.4+    130205 703  0.4-  0.3-    130206 G48  0.8+  0.3+
    061120 G96  0.7-  0.6+    130205 703  0.3-  0.0     130206 G48  0.3+  0.6+
    061120 G96  0.6-  0.0     130205 703  1.3-  0.4-
    061124 291  0.2-  0.1-    130205 703  0.9+  0.1+
    
    Ephemeris:
    2006 WS1                 a,e,i = 1.22, 0.46, 18                  q = 0.6543
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 01 07    10 55 28.1 +08 44 29   0.7215  1.5161   124.9    32.2    21.2
    ...
    2013 01 22    10 49 40.4 +03 55 20   0.5377  1.4363   139.5    26.4    20.2
    ...
    2013 01 30    10 38 49.3 +00 31 26   0.4515  1.3893   148.2    21.9    19.6
    ...
    2013 02 05    10 25 34.6 -02 35 47   0.3940  1.3521   154.4    18.4    19.2
    2013 02 06    10 22 51.4 -03 10 22   0.3851  1.3458   155.3    17.8    19.1
    2013 02 07    10 19 58.4 -03 45 59   0.3765  1.3393   156.1    17.3    19.0
    ...
    2013 02 13    09 59 01.5 -07 42 06   0.3296  1.2999   158.6    16.1    18.6
    ...
    2013 02 21    09 20 17.5 -13 51 22   0.2821  1.2446   151.7    22.1    18.4
    ...
    2013 03 08    07 37 51.1 -25 22 57   0.2453  1.1337   119.5    49.6    18.7
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-C23
    

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