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  • MPEC 2009-U21 : 2009 UN

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    M.P.E.C. 2009-U21                                Issued 2009 Oct. 17, 12:41 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 UN
    
    Observations:
         K09U00N* C2009 10 16.46015 05 04 51.24 +22 47 25.8          19.8 V EU021G96
         K09U00N  C2009 10 16.46645 05 04 52.68 +22 47 31.2          20.1 V EU021G96
         K09U00N  C2009 10 16.47268 05 04 54.08 +22 47 36.7          20.1 V EU021G96
         K09U00N  C2009 10 16.47903 05 04 55.52 +22 47 42.1          20.0 V EU021G96
         K09U00N  C2009 10 16.50767 05 05 02.04 +22 48 07.3          21.1 V EU021G96
         K09U00N  C2009 10 16.50830 05 05 02.22 +22 48 08.1          21.4 V EU021G96
         K09U00N  C2009 10 16.50892 05 05 02.36 +22 48 08.7          21.2 V EU021G96
         K09U00N  C2009 10 16.50954 05 05 02.50 +22 48 09.1          22.1 V EU021G96
         K09U00N 6C2009 10 16.59526 05 05 23.41 +22 49 31.6          19.9 R EU021F65
         K09U00N 6C2009 10 16.59615 05 05 23.62 +22 49 32.5          19.9 R EU021F65
         K09U00N 6C2009 10 16.59695 05 05 23.79 +22 49 33.1          20.2 R EU021F65
         K09U00N 6C2009 10 16.59777 05 05 23.98 +22 49 34.0          19.8 R EU021F65
         K09U00N  C2009 10 17.18758 05 07 44.49 +22 57 57.6                 EU021J95
         K09U00N  C2009 10 17.19337 05 07 45.86 +22 58 03.4                 EU021J95
         K09U00N  C2009 10 17.19915 05 07 47.14 +22 58 07.2          19.8 R EU021J95
         K09U00N  C2009 10 17.30805 05 08 14.76 +22 59 48.3          20.5 R EU021H01
         K09U00N  C2009 10 17.31264 05 08 15.81 +22 59 52.5          20.4 R EU021H01
         K09U00N  C2009 10 17.31832 05 08 17.11 +22 59 57.7          20.5 R EU021H01
         K09U00N  C2009 10 17.43144 05 08 42.93 +23 01 40.5          20.2 R EU021926
         K09U00N  C2009 10 17.43554 05 08 43.84 +23 01 43.7          20.8 R EU021926
         K09U00N  C2009 10 17.49556 05 08 57.33 +23 02 34.2          20.0 V EU021G96
         K09U00N  C2009 10 17.49816 05 08 57.94 +23 02 37.2          20.1 V EU021G96
         K09U00N  C2009 10 17.50076 05 08 58.56 +23 02 39.0          20.4 V EU021G96
    
    Observer details:
    926 Tenagra II Observatory.  Observers P. R. Holvorcem, M. Schwartz.  Measurer
        P. R. Holvorcem.  0.81-m f/7 Ritchey-Chretien + CCD.
    F65 Haleakala-Faulkes Telescope North.  Observer R. Miles.  2.0-m f/10.0
        Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  Observer R. E. Hill.  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.  Observer W. H. Ryan.  2.4-m f/8.9
        reflector + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
    2009 UN                                                  Earth MOID = 0.2005 AU
    Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
    M  14.24279              (2000.0)            P               Q
    n   0.19684190     Peri.    6.59574     +0.74814905     -0.66310287
    a   2.9267863      Node    34.97887     +0.60686300     +0.66929481
    e   0.5927743      Incl.    2.38175     +0.26831006     +0.33517016
    P   5.01           H   21.1           G   0.15           U   8
    Residuals in seconds of arc
    091016 G96  0.3-  0.0     091016 F65  0.8-  0.3-    091017 H01  0.6-  0.2-
    091016 G96  0.2-  0.2-    091016 F65  0.7-  0.1-    091017 H01  0.6-  0.2-
    091016 G96  0.5-  0.2-    091016 F65  0.8-  0.2-    091017 926  0.3-  0.4+
    091016 G96  0.6-  0.4-    091016 F65  0.8-  0.1-    091017 926  0.5-  0.0
    091016 G96  1.0-  0.2-    091017 J95  0.7-  0.2-    091017 G96  1.0-  0.7-
    091016 G96  0.5-  0.1+    091017 J95  0.1-  0.6+    091017 G96  0.7-  0.1+
    091016 G96  0.5-  0.1+    091017 J95  0.7-  0.6-    091017 G96  0.2-  0.3-
    091016 G96  0.5-  0.0     091017 H01  0.5-  0.2-
    
    Ephemeris:
    2009 UN                  a,e,i = 2.93, 0.59, 2                   q = 1.1919
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2009 10 16    05 03.01   +22 40.6    0.298    1.195   125.8    42.6    20.5
    2009 10 26    05 40.52   +24 52.0    0.291    1.192   127.0    41.8    20.4
    2009 11 05    06 10.99   +26 29.5    0.293    1.201   130.0    39.2    20.4
    2009 11 15    06 32.46   +27 42.8    0.302    1.222   135.2    34.7    20.4
    2009 11 25    06 44.41   +28 40.5    0.317    1.254   142.6    28.6    20.4
    2009 12 05    06 47.98   +29 24.5    0.341    1.295   151.7    21.2    20.4
    2009 12 15    06 45.41   +29 52.2    0.374    1.345   161.8    13.2    20.4
    2009 12 25    06 39.84   +30 00.5    0.421    1.401   171.2     6.2    20.4
    2010 01 04    06 34.48   +29 50.1    0.484    1.463   171.2     5.9    20.8
    2010 01 14    06 31.40   +29 26.4    0.563    1.529   162.2    11.3    21.5
    
    Timothy B. Spahr             (C) Copyright 2009 MPC           M.P.E.C. 2009-U21
    

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