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Minor Planet Center

MPEC 2009-W60 : 2009 WB11

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M.P.E.C. 2009-W60                                Issued 2009 Nov. 21, 13:31 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 WB11

Observations:
     K09W11B* C2009 11 20.25943 04 43 43.92 +22 39 11.2          20.9 V EW060691
     K09W11B  C2009 11 20.27717 04 43 42.91 +22 40 25.2          20.5 V EW060691
     K09W11B  C2009 11 20.29493 04 43 42.02 +22 41 37.7          20.8 V EW060691
     K09W11B  C2009 11 20.40878 04 43 34.97 +22 49 06.0          19.7 R EW060H01
     K09W11B  C2009 11 20.41373 04 43 34.72 +22 49 24.9          19.8 R EW060H01
     K09W11B tC2009 11 20.41843 04 43 34.96 +22 49 49.5          20.9 V EW060291
     K09W11B  C2009 11 20.41857 04 43 34.48 +22 49 43.4          19.8 R EW060H01
     K09W11B tC2009 11 20.42245 04 43 34.70 +22 50 05.1          20.7 V EW060291
     K09W11B tC2009 11 20.42701 04 43 34.44 +22 50 22.8          20.9 V EW060291
     K09W11B  C2009 11 21.25417 04 43 36.70 +23 41 00.9                 EW060291
     K09W11B  C2009 11 21.25833 04 43 36.50 +23 41 15.0                 EW060291
     K09W11B  C2009 11 21.26256 04 43 36.25 +23 41 30.6                 EW060291
     K09W11B  C2009 11 21.28640 04 43 34.94 +23 42 55.3          20.8 V EW060691
     K09W11B  C2009 11 21.29677504 43 31.37 +23 43 15.9          20.2 V EW060H21
     K09W11B  C2009 11 21.30017704 43 31.22 +23 43 26.1          20.2 V EW060H21
     K09W11B  C2009 11 21.30372 04 43 32.01 +23 43 41.1          20.4 R EW060H36
     K09W11B  C2009 11 21.30416 04 43 34.03 +23 43 56.0          20.6 V EW060691
     K09W11B  C2009 11 21.30988 04 43 31.69 +23 44 01.1          20.4 R EW060H36
     K09W11B  C2009 11 21.31528 04 43 31.35 +23 44 19.8          20.0 R EW060H36
     K09W11B  C2009 11 21.32191 04 43 33.01 +23 44 56.9          20.9 V EW060691
     K09W11B  C2009 11 21.36257 04 43 30.20 +23 47 08.5          19.9 R EW060H01
     K09W11B  C2009 11 21.36435 04 43 30.11 +23 47 14.6          19.7 R EW060H01
     K09W11B  C2009 11 21.37125 04 43 29.73 +23 47 37.1          19.6 R EW060H01
     K09W11B  C2009 11 21.37701 04 43 29.43 +23 47 56.2          19.9 R EW060H01

Observer details:
291 LPL/Spacewatch II.  Observers T. H. Bressi, M. T. Read.  1.8-m f/2.7
    reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer T. H. Bressi.  0.9-m f/3
    reflector + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurer S. Foglia.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.

Orbital elements:
2009 WB11                                                Earth MOID = 0.0141 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M  37.97416              (2000.0)            P               Q
n   0.43080580     Peri.  306.16610     +0.99508883     -0.07984162
a   1.7362611      Node    58.48155     +0.09729621     +0.89768593
e   0.4756361      Incl.    3.93570     -0.01821181     +0.43334200
P   2.29           H   25.4           G   0.15           U   7
Residuals in seconds of arc
091120 691  0.0   0.6+    091120 291  0.5-  0.5+    091121 691  0.1+  0.0
091120 691  0.8-  0.2+    091121 291  0.4+  0.1-    091121 H36  0.7+  0.6-
091120 691  0.6+  1.0-    091121 291  0.5+  0.8-    091121 H36  0.1-  0.0
091120 H01  0.2+  0.5-    091121 291  0.0   0.2-    091121 691  0.3-  0.2+
091120 H01  0.2+  0.5-    091121 691  0.7-  0.9+    091121 H01  0.2-  0.1+
091120 291  0.5+  0.1-    091121 H21  0.2-  0.3+    091121 H01  0.1-  0.3+
091120 H01  0.2+  0.5-    091121 H21  0.1+  0.9-    091121 H01  0.3-  0.2+
091120 291  0.2-  0.2+    091121 H36  0.6+  0.1+    091121 H01  0.2-  0.4+

Ephemeris:
2009 WB11                a,e,i = 1.74, 0.48, 4                   q = 0.9104
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 11 15    04 43.52   +11 31.7    0.0348   1.022   158.9    20.4    19.2
2009 11 16    04 43.71   +14 53.6    0.0403   1.027   160.8    18.5    19.4
2009 11 17    04 43.79   +17 27.1    0.0458   1.033   162.2    17.0    19.7
2009 11 18    04 43.81   +19 27.1    0.0515   1.038   163.4    15.8    19.9
2009 11 19    04 43.77   +21 03.2    0.0573   1.044   164.3    14.8    20.1
2009 11 20    04 43.69   +22 21.6    0.0631   1.049   165.3    13.9    20.3
2009 11 21    04 43.58   +23 26.6    0.0690   1.055   166.1    13.0    20.5
2009 11 22    04 43.44   +24 21.2    0.0749   1.061   166.9    12.2    20.6
2009 11 23    04 43.29   +25 07.7    0.0809   1.067   167.7    11.4    20.8
2009 11 24    04 43.12   +25 47.5    0.0870   1.073   168.4    10.6    20.9
2009 11 25    04 42.95   +26 21.9    0.0931   1.079   169.2     9.9    21.1
2009 11 26    04 42.77   +26 51.8    0.0992   1.085   169.9     9.2    21.2
2009 11 27    04 42.58   +27 18.0    0.105    1.091   170.5     8.6    21.3
2009 11 28    04 42.40   +27 41.0    0.112    1.097   171.1     8.0    21.4
2009 11 29    04 42.21   +28 01.2    0.118    1.103   171.7     7.4    21.5
2009 11 30    04 42.03   +28 19.2    0.124    1.110   172.1     7.0    21.6
2009 12 01    04 41.86   +28 35.1    0.131    1.116   172.5     6.6    21.7
2009 12 02    04 41.69   +28 49.2    0.137    1.122   172.8     6.3    21.8
2009 12 03    04 41.54   +29 01.7    0.144    1.129   173.0     6.1    21.9
2009 12 04    04 41.39   +29 12.9    0.151    1.135   173.0     6.1    22.0
2009 12 05    04 41.25   +29 22.9    0.157    1.142   172.9     6.1    22.2

Timothy B. Spahr             (C) Copyright 2009 MPC           M.P.E.C. 2009-W60

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