• Processing (Info)

    • MPEC 2009-W27 : 2009 WJ1

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    M.P.E.C. 2009-W27                                Issued 2009 Nov. 18, 17:23 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 WJ1

Observations:
     K09W01J* C2009 11 17.10881 22 47 27.81 -05 48 03.4          21.5 V EW027G96
     K09W01J  C2009 11 17.11728 22 47 26.80 -05 48 09.3          21.3 V EW027G96
     K09W01J  C2009 11 17.12542 22 47 25.80 -05 48 15.6          21.4 V EW027G96
     K09W01J  C2009 11 17.13380 22 47 24.79 -05 48 21.8          21.4 V EW027G96
     K09W01J  C2009 11 17.18498 22 47 18.51 -05 49 00.0          20.1 R EW027H01
     K09W01J  C2009 11 17.18949 22 47 17.97 -05 49 03.4          20.0 R EW027H01
     K09W01J  C2009 11 17.19326 22 47 17.52 -05 49 06.1          20.2 R EW027H01
     K09W01J  C2009 11 17.19731 22 47 17.03 -05 49 09.1          20.1 R EW027H01
     K09W01J  C2009 11 18.06713 22 45 40.77 -05 59 51.0          21.5 R EW027926
     K09W01J  C2009 11 18.07193 22 45 40.15 -05 59 54.9          21.2 R EW027926
     K09W01J HC2009 11 18.07416 22 45 39.94 -05 59 56.7                 EW027291
     K09W01J  C2009 11 18.07796 22 45 39.46 -06 00 00.1                 EW027291
     K09W01J HC2009 11 18.08244 22 45 39.08 -06 00 03.5                 EW027291
     K09W01J  C2009 11 18.15139 22 45 30.63 -06 00 54.1          21.7 V EW027G96
     K09W01J  C2009 11 18.15724 22 45 29.91 -06 00 57.9          22.3 V EW027G96
     K09W01J  C2009 11 18.16311 22 45 29.16 -06 01 02.4          22.3 V EW027G96
     K09W01J  C2009 11 18.16882 22 45 28.54 -06 01 06.6          21.9 V EW027G96
     K09W01J  C2009 11 18.17447 22 45 27.78 -06 01 11.1          20.5 R EW027H01
     K09W01J  C2009 11 18.17838 22 45 27.32 -06 01 14.0          20.4 R EW027H01
     K09W01J  C2009 11 18.18190 22 45 26.89 -06 01 16.5          20.5 R EW027H01
     K09W01J  C2009 11 18.18596 22 45 26.41 -06 01 19.5          20.4 R EW027H01
     K09W01J  C2009 11 18.19086 22 45 25.84 -06 01 23.0          20.5 R EW027H01

Observer details:
291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + CCD.
926 Tenagra II Observatory.  Observers P. R. Holvorcem, M. Schwartz.  Measurer
    P. R. Holvorcem.  0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer S. M. Larson.  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.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.

Orbital elements:
2009 WJ1                                            PHA, Earth MOID = 0.0070 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 359.24104              (2000.0)            P               Q
n   0.21868852     Peri.  193.77398     -0.32129454     -0.94691783
a   2.7284671      Node   274.96809     +0.86985914     -0.29060558
e   0.6995612      Incl.    0.62061     +0.37431924     -0.13745915
P   4.51           H   21.3           G   0.15           U   9
Residuals in seconds of arc
091117 G96  0.3-  0.2-    091118 926  0.5-  0.6+    091118 G96  0.1+  0.0
091117 G96  0.0   0.2+    091118 926  1.1-  0.3+    091118 H01  0.1-  0.1+
091117 G96  0.1-  0.0     091118 291  0.5-  0.3+    091118 H01  0.0   0.0
091117 G96  0.1+  0.0     091118 291  0.8-  0.3-    091118 H01  0.1-  0.1+
091117 H01  0.0   0.0     091118 291  1.6+  0.4-    091118 H01  0.1-  0.0
091117 H01  0.0   0.1-    091118 G96  0.1+  0.2-    091118 H01  0.1+  0.1+
091117 H01  0.0   0.0     091118 G96  0.2-  0.2+
091117 H01  0.0   0.0     091118 G96  0.8-  0.0

Ephemeris:
2009 WJ1                 a,e,i = 2.73, 0.70, 1                   q = 0.8197
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 11 15    22 51.48   -05 21.3    0.344    1.151   109.5    54.1    21.3
2009 11 20    22 42.12   -06 23.1    0.326    1.103   102.0    61.2    21.3
2009 11 25    22 33.08   -07 22.8    0.308    1.057    94.5    68.7    21.3
2009 11 30    22 23.83   -08 23.6    0.288    1.012    86.9    76.6    21.3
2009 12 05    22 13.53   -09 30.4    0.267    0.971    79.0    85.3    21.4
2009 12 10    22 00.95   -10 49.5    0.244    0.933    70.6    95.1    21.5
2009 12 15    21 44.37   -12 29.1    0.221    0.899    61.1   106.4    21.8

Sonia Keys                   (C) Copyright 2009 MPC           M.P.E.C. 2009-W27

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