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Minor Planet Center

MPEC 2009-W53 : 2009 WY7

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M.P.E.C. 2009-W53                                Issued 2009 Nov. 20, 15:32 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 WY7

Observations:
     K09W07Y* C2009 11 19.30256 04 53 43.40 +14 44 02.5          18.9   EW053704
     K09W07Y  C2009 11 19.31487 04 53 23.40 +14 43 49.4          19.2   EW053704
     K09W07Y  C2009 11 19.32731 04 53 03.19 +14 43 33.5          19.2   EW053704
     K09W07Y  C2009 11 19.33966 04 52 43.13 +14 43 18.6          19.7   EW053704
     K09W07Y  C2009 11 20.39477 04 23 56.11 +14 14 41.6          18.3 V EW053G96
     K09W07Y  C2009 11 20.40097 04 23 45.31 +14 14 28.2          18.1 V EW053G96
     K09W07Y  C2009 11 20.40708 04 23 34.69 +14 14 15.1          18.1 V EW053G96
     K09W07Y  C2009 11 20.41322 04 23 24.03 +14 14 01.6          18.3 V EW053G96

Observer details:
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
    R. Kracke, G. Spitz, M. Blythe.  Measurer J. Stuart.  1.0-m f/2.15
    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 WY7                                                 Earth MOID = 0.0098 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 270.85275              (2000.0)            P               Q
n   1.88350875     Peri.  172.24895     -0.55298571     +0.83080353
a   0.6493681      Node    64.15847     -0.76814534     -0.47905366
e   0.6094399      Incl.    4.01565     -0.32273757     -0.28332505
P   0.52           H   23.6           G   0.15           U   9
Residuals in seconds of arc
091119 704  0.2+  0.2-    091119 704  0.3+  0.3-    091120 G96  0.1-  0.1+
091119 704  0.2-  0.9+    091120 G96  0.1+  0.0     091120 G96  0.1+  0.0
091119 704  0.2-  0.3-    091120 G96  0.1-  0.0

Ephemeris:
2009 WY7                 a,e,i = 0.65, 0.61, 4                   q = 0.2536
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 11 15    06 23.83   +14 48.8    0.0753   1.045   136.1    41.0    19.7
2009 11 20    04 35.00   +14 28.0    0.0576   1.044   166.2    13.0    18.3
2009 11 25    02 14.32   +09 36.2    0.0590   1.040   151.7    26.8    18.7
2009 11 30    00 38.54   +04 07.2    0.0782   1.031   122.7    53.6    20.1
2009 12 05    23 48.23   +00 54.9    0.105    1.018   104.8    69.4    21.2
2009 12 10    23 20.27   -00 51.6    0.135    1.000    92.6    79.6    22.0
2009 12 15    23 02.86   -01 56.5    0.165    0.978    83.1    87.3    22.7

Sonia Keys                   (C) Copyright 2009 MPC           M.P.E.C. 2009-W53

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