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  • MPEC 2011-U39 : 2011 UL21

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    M.P.E.C. 2011-U39                                Issued 2011 Oct. 21, 13:02 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.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2011 UL21
    
    Observations:
         K11U21L* C2011 10 17.48272 09 40 28.30 +09 11 16.5          18.4 VrEU039703
         K11U21L  C2011 10 17.48675 09 40 29.13 +09 11 06.3          18.8 VrEU039703
         K11U21L  C2011 10 17.49075 09 40 29.85 +09 10 57.5          18.7 VrEU039703
         K11U21L  C2011 10 17.49479 09 40 30.68 +09 10 48.2          18.5 VrEU039703
         K11U21L  C2011 10 17.50774 09 40 33.15 +09 10 20.1          18.2 VrEU039703
         K11U21L  C2011 10 17.50831 09 40 33.24 +09 10 18.1          18.9 VrEU039703
         K11U21L  C2011 10 17.50888 09 40 33.39 +09 10 17.9          18.3 VrEU039703
         K11U21L  C2011 10 17.50947 09 40 33.50 +09 10 15.9          18.5 VrEU039703
         K11U21L KC2011 10 18.15929 09 42 39.23 +08 45 53.0                tEU039204
         K11U21L KC2011 10 18.16628 09 42 40.59 +08 45 37.4                tEU039204
         K11U21L KC2011 10 18.17329 09 42 41.95 +08 45 21.3          18.4 RtEU039204
         K11U21L  C2011 10 18.45611 09 43 37.20 +08 34 39.5          18.2 RcEU039854
         K11U21L  C2011 10 18.45882 09 43 37.63 +08 34 32.9          18.2 RcEU039854
         K11U21L  C2011 10 18.46153 09 43 38.05 +08 34 28.3          19.3 RcEU039854
         K11U21L %C2011 10 18.61813709 44 08.61 +08 28 32.0          18.0 RoEU039F65
         K11U21L %C2011 10 18.61895809 44 08.77 +08 28 30.1          18.1 RoEU039F65
         K11U21L %C2011 10 18.61975409 44 08.93 +08 28 28.4          18.2 RoEU039F65
         K11U21L %C2011 10 18.62050909 44 09.08 +08 28 26.5          18.2 RoEU039F65
         K11U21L %C2011 10 18.62131609 44 09.23 +08 28 24.9          18.0 RoEU039F65
         K11U21L %C2011 10 18.62213909 44 09.40 +08 28 23.0          18.1 RoEU039F65
         K11U21L %C2011 10 18.62296209 44 09.55 +08 28 21.1          18.1 RoEU039F65
         K11U21L %C2011 10 18.62377009 44 09.71 +08 28 19.1          18.1 RoEU039F65
         K11U21L %C2011 10 18.62458809 44 09.86 +08 28 17.2          18.0 RoEU039F65
         K11U21L %C2011 10 18.62539409 44 10.02 +08 28 15.3          18.1 RoEU039F65
         K11U21L %C2011 10 18.62621109 44 10.18 +08 28 13.6          18.2 RoEU039F65
         K11U21L %C2011 10 18.62701409 44 10.33 +08 28 11.8          18.1 RoEU039F65
         K11U21L  C2011 10 19.16010 09 45 54.48 +08 07 44.5                uEU039118
         K11U21L  C2011 10 19.16088 09 45 54.61 +08 07 41.5                uEU039118
         K11U21L  C2011 10 19.16403 09 45 55.19 +08 07 35.4                uEU039118
         K11U21L  C2011 10 19.16482 09 45 55.42 +08 07 33.3                uEU039118
         K11U21L  C2011 10 19.17347 09 45 57.02 +08 07 14.1                uEU039118
         K11U21L |C2011 10 19.46883 09 46 55.23 +07 55 51.4          18.4 VcEU039H06
         K11U21L |C2011 10 19.47140 09 46 55.71 +07 55 45.4          18.6 VcEU039H06
         K11U21L |C2011 10 19.47396 09 46 56.18 +07 55 39.5          18.7 VcEU039H06
         K11U21L HC2011 10 19.51056 09 47 03.36 +07 54 14.3                oEU039291
         K11U21L HC2011 10 19.51202 09 47 03.65 +07 54 11.0                oEU039291
         K11U21L HC2011 10 19.51347 09 47 03.93 +07 54 07.8                oEU039291
         K11U21L KC2011 10 20.44266509 50 07.64 +07 17 46.7          18.3 RuEU039H36
         K11U21L KC2011 10 20.45060809 50 09.18 +07 17 27.9          18.1 RuEU039H36
         K11U21L KC2011 10 20.45855109 50 10.78 +07 17 09.0          18.4 RuEU039H36
         K11U21L KC2011 10 20.46650109 50 12.34 +07 16 50.3          18.4 RuEU039H36
         K11U21L $C2011 10 20.61201 09 50 41.32 +07 11 06.8          18.3 RrEU039F65
         K11U21L $C2011 10 20.61372 09 50 41.66 +07 11 02.7          18.5 RrEU039F65
         K11U21L KC2011 10 21.40378109 53 19.46 +06 39 29.9          18.4 VtEU039H21
         K11U21L KC2011 10 21.40772909 53 20.24 +06 39 20.5          18.1 VtEU039H21
         K11U21L KC2011 10 21.41166209 53 21.03 +06 39 10.9          18.2 VtEU039H21
         K11U21L KC2011 10 21.41547409 53 21.79 +06 39 01.8          18.3 VtEU039H21
         K11U21L KC2011 10 21.43705709 53 26.11 +06 38 10.1          17.9 RuEU039H36
         K11U21L KC2011 10 21.44647909 53 28.03 +06 37 47.2          18.2 RuEU039H36
         K11U21L KC2011 10 21.45591309 53 29.89 +06 37 24.5          18.1 RuEU039H36
         K11U21L KC2011 10 21.46451709 53 31.61 +06 37 03.6          18.0 RuEU039H36
    
    Observer details:
    118 Modra.  Observer J. Vilagi.  0.6-m f/5.5 reflector + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
    703 Catalina Sky Survey.  Observer R. A. Kowalski.  Measurers J. D. Ahern,
        E. C. Beshore, A. Boattini, G. J. Garradd, A. R. Gibbs, P. Tricarico,
        A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson, R. H. McNaught.
        0.68-m Schmidt + CCD.
    854 Sabino Canyon Observatory, Tucson.  Observer J. E. McGaha.  0.36-m f/10.0
        Schmidt-Cassegrain + CCD.
    F65 Haleakala-Faulkes Telescope North.  Observers T. Lister, G. Sostero,
        N. Howes, E. Guido.  2.0-m f/10 Ritchey-Chretien + CCD, 2.0-m f/10.0
        Ritchey-Chretien + CCD.
    H06 RAS Observatory, Mayhill.  Observer H. Sato.  0.51-m f/4.5 reflector + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Vorobjov, L. Buzzi, S. Foglia.  0.61-m f/4.0 astrograph + CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    
    Orbital elements:
    2011 UL21                                                Earth MOID = 0.0815 AU
    Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
    M 327.24461              (2000.0)            P               Q
    n   0.26396835     Peri.  281.07967     -0.78140157     +0.26126749
    a   2.4067712      Node   276.09820     -0.03143515     -0.92346177
    e   0.6829236      Incl.   34.74512     -0.62323624     -0.28099405
    P   3.73           H   15.5           G   0.15           U   9
    Residuals in seconds of arc
    111017 703  0.9-  0.9+    111018 F65  0.2+  0.0     111019 291  0.1-  0.1+
    111017 703  0.0   0.3-    111018 F65  0.1+  0.2+    111019 291  0.1-  0.2+
    111017 703  0.7-  0.2-    111018 F65  0.2+  0.2+    111019 291  0.1-  0.4+
    111017 703  0.1+  0.5-    111018 F65  0.1+  0.2+    111020 H36  0.2+  0.0
    111017 703  0.1-  0.3+    111018 F65  0.2+  0.0     111020 H36  0.2-  0.0
    111017 703  0.3-  0.4-    111018 F65  0.0   0.0     111020 H36  0.3+  0.1-
    111017 703  0.3+  0.6+    111018 F65  0.1+  0.1-    111020 H36  0.1+  0.0
    111017 703  0.2+  0.1-    111018 F65  0.1+  0.1+    111020 F65  0.3-  0.0
    111018 204  0.2-  0.1-    111018 F65  0.0   0.1+    111020 F65  0.2-  0.1-
    111018 204  0.1-  0.1+    111019 118  0.1+  0.3-    111021 H21  0.0   0.2-
    111018 204  0.0   0.2-    111019 118  0.3-  1.5-    111021 H21  0.1-  0.1-
    111018 854  2.3+  0.7-    111019 118  0.8-  0.3-    111021 H21  0.0   0.2-
    111018 854  0.9+  1.2-    111019 118  0.4+  0.6-    111021 H21  0.0   0.1-
    111018 854  0.7-  0.4+    111019 118  0.9-  0.1+    111021 H36  0.2-  0.2+
    111018 F65  0.0   0.1+    111019 H06  0.6+  0.4+    111021 H36  0.4+  0.0
    111018 F65  0.0   0.1+    111019 H06  0.2+  0.4+    111021 H36  0.1+  0.0
    111018 F65  0.1+  0.2+    111019 H06  0.2-  0.4+    111021 H36  0.1+  0.1-
    
    Ephemeris:
    2011 UL21                a,e,i = 2.41, 0.68, 35                  q = 0.7631
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2011 09 21    08 23 22.4 +21 48 57   1.9413  1.5867    54.6    31.1    19.3
    ...
    2011 10 06    09 05 18.7 +15 32 14   1.6864  1.4350    58.1    36.2    18.9
    ...
    2011 10 14    09 29 26.7 +11 16 32   1.5592  1.3527    59.1    39.3    18.7
    ...
    2011 10 20    09 48 39.5 +07 35 15   1.4702  1.2905    59.5    41.7    18.5
    2011 10 21    09 51 58.2 +06 55 45   1.4561  1.2802    59.5    42.1    18.5
    2011 10 22    09 55 19.0 +06 15 30   1.4421  1.2698    59.5    42.5    18.5
    ...
    2011 10 28    10 16 10.8 +01 57 40   1.3634  1.2077    59.2    45.0    18.3
    ...
    2011 11 05    10 46 29.6 -04 28 24   1.2742  1.1257    58.0    48.3    18.1
    ...
    2011 11 20    11 53 59.8 -18 05 19   1.1712  0.9793    53.1    53.8    17.8
    
    A. U. Tomatic                (C) Copyright 2011 MPC           M.P.E.C. 2011-U39
    

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