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  • MPEC 2020-V142 : 2009 WD11

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    M.P.E.C. 2020-V142                            Issued 2020 November 14, 08:40 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F 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 https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2009 WD11                                
    
    
                               Revision to MPEC 2009-W62                            
    
    Additional Observations:
         K09W11D  C2020 11 13.54462404 53 55.962+14 34 02.33         20.60wUEV142F51
         K09W11D  C2020 11 13.55590604 53 54.289+14 34 12.95         20.54wUEV142F51
         K09W11D  C2020 11 13.56720904 53 52.627+14 34 23.44         20.61wUEV142F51
         K09W11D  C2020 11 13.57850804 53 50.962+14 34 33.87         20.78wUEV142F51
         K09W11D KC2020 11 14.27011704 52 16.00 +14 45 38.4          20.73GVEV142I52
         K09W11D KC2020 11 14.27283504 52 15.63 +14 45 41.0                VEV142I52
         K09W11D KC2020 11 14.27556604 52 15.19 +14 45 44.8          20.59GVEV142I52
         K09W11D KC2020 11 14.27829804 52 14.75 +14 45 47.5          20.23GVEV142I52
         K09W11D KC2020 11 14.32573304 52 06.73 +14 46 31.5          20.4 VuEV142H21
         K09W11D KC2020 11 14.32895804 52 06.23 +14 46 35.0          20.3 VuEV142H21
         K09W11D  C2020 11 14.33110204 52 06.60 +14 46 40.5          20.42GVEV142G96
         K09W11D  C2020 11 14.33621004 52 05.79 +14 46 45.6          20.93GVEV142G96
         K09W11D  C2020 11 14.34643104 52 04.18 +14 46 55.8          20.85GVEV142G96
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz, M.
        Willman.  Measurers K. Chambers, S. Chastel, T. de Boer, L. Denneau, J.
        Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
        R. Wainscoat, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer D. Rankin.  Measurers E. J. Christensen, G.
        A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, R. A.
        Kowalski, S. M. Larson, G. J. Leonard, T. A. Pruyne, D. Rankin, R. L.
        Seaman, F. C. Shelly, K. W. Wierzchos.  1.5-m reflector + 10K CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer T. A. Pruyne.
        Measurers E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D.
        Grauer, H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, T. A.
        Pruyne, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
        reflector + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    201113 F51 1.05- 0.33-    201114 G96 1.07- 0.33-    MPO175319   -0.40 days
    
    Orbital elements:
    2009 WD11                                                Earth MOID = 0.0747 AU
    Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
    M 293.90750              (2000.0)            P               Q
    n   0.89482839     Peri.  127.42698     -0.96030253     +0.21002991
    a   1.0665377      Node    65.36520     -0.27320547     -0.84109194
    e   0.4082476      Incl.   11.65257     +0.05637216     -0.49844939
    P   1.10           H   22.0           G   0.15           U   3
    Residuals in seconds of arc
    091120 691  0.1-  0.0     091123 291  1.3-  1.2+    091210 160  0.3-  0.3-
    091120 691  0.2-  0.0     091125 691 (2.3-  0.3+)   091210 160  0.3-  0.3+
    091120 691  0.1-  0.2+    091125 691  1.0+  1.1-    091210 160  0.1-  0.2-
    091120 291  0.2-  0.1+    091126 J13  0.5-  0.3+    091210 160  0.2-  0.4-
    091120 291  0.8-  0.5+    091126 J13  0.1+  0.1+    091210 160  0.1+  0.5-
    091120 H01  0.2+  0.0     091126 J13  0.2-  0.1-    091210 A48  0.1+  0.2-
    091120 H01  0.1+  0.0     091126 J13  0.1+  0.1+    091210 A48  0.1-  0.2-
    091120 H01  0.1+  0.0     091127 291  0.2-  0.6+    091210 A48  0.2+  0.3-
    091120 H01  0.2+  0.1+    091127 291  0.5-  0.8+    091210 A48  0.3+  0.2-
    091120 A50  0.4-  1.0-    091127 291  0.1+  0.2+    091210 C20  0.3+  0.4-
    091120 A50  0.9-  0.3-    091204 J95  0.7+  0.7+    091210 C20  0.0   0.0
    091120 A50 (0.6-  2.5-)   091204 J95  0.1+  0.1+    091212 932  0.3-  0.5-
    091120 A50  0.4-  1.2-    091204 J95  0.4-  0.2-    091212 932  0.0   0.2-
    091121 291  0.1-  0.1-    091204 926  0.3+  0.2-    091212 932  0.3+  0.1-
    091121 291  0.0   0.0     091204 926  0.1+  0.5-    091212 932  0.1-  0.1-
    091121 291  0.3-  0.0     091204 926  1.2+  0.1-    091212 932  0.2-  0.2-
    091121 H21  0.1+  0.2-    091205 H28  0.2+  0.9+    091217 932  0.4-  0.1-
    091121 H21  0.0   0.4+    091205 H28 (1.8-  1.2+)   091217 932  0.2-  0.1-
    091121 H21  0.2+  0.0     091205 A53  0.4+  0.7+    091217 932  0.3-  0.3-
    091121 H01  0.0   0.1+    091205 A53  0.7-  0.7+    201113 F51  0.1+  0.1-
    091121 H01  0.0   0.1+    091205 A53  0.5-  0.5+    201113 F51  0.0   0.0
    091121 H01  0.1-  0.1+    091208 932  0.1+  0.3-    201113 F51  0.0   0.0
    091121 H36  0.4-  1.1+    091208 932  0.0   0.6-    201113 F51  0.0   0.1-
    091121 H36  0.1+  0.1-    091208 932  0.3+  0.0     201114 I52  0.1-  0.8-
    091121 H36  0.2-  0.4-    091208 932  0.2+  0.3+    201114 I52  0.6+  0.9-
    091121 926  0.4+  0.2+    091208 932  0.5+  0.6-    201114 I52  0.3+  0.1+
    091121 926  0.5-  0.6-    091208 204  0.1+  0.2-    201114 I52  0.0   0.0
    091121 926  0.1+  0.3-    091208 204  0.1-  0.2-    201114 H21  0.1-  0.3-
    091122 703  1.1+  0.7-    091208 204  0.2-  0.1-    201114 H21  0.1-  0.0
    091122 703  0.2-  0.2+    091209 C20  0.5+  0.2+    201114 G96  0.3+  0.1-
    091122 703  0.5+  0.4+    091209 560  0.2-  0.0     201114 G96  0.1+  0.1-
    091123 291  0.5-  0.7+    091209 560  0.3+  0.4+    201114 G96  0.1-  0.1-
    091123 291  0.2-  0.2-    091209 560  0.2+  0.9+
    
    Ephemeris:
    2009 WD11                a,e,i = 1.07, 0.41, 12                  q = 0.6311
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 10 15    05 10 57.8 +10 57 00   0.5657  1.3905   123.3    36.8    23.0
    ...
    2020 10 30    05 12 05.3 +12 00 22   0.4187  1.3321   137.5    30.2    22.0
    ...
    2020 11 07    05 05 23.0 +13 08 06   0.3471  1.2958   146.9    24.7    21.4
    ...
    2020 11 13    04 55 09.2 +14 25 36   0.2977  1.2662   155.3    19.0    20.9
    2020 11 14    04 52 53.6 +14 41 23   0.2899  1.2611   156.9    17.9    20.7
    2020 11 15    04 50 27.1 +14 58 06   0.2822  1.2560   158.5    16.8    20.6
    ...
    2020 11 21    04 31 27.1 +17 00 03   0.2395  1.2238   169.0     8.9    19.9
    ...
    2020 11 29    03 51 18.5 +20 45 43   0.1926  1.1779   173.2     5.7    19.2
    ...
    2020 12 14    01 37 30.6 +28 28 26   0.1474  1.0829   128.8    45.1    19.7
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-V142
    


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