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  • MPEC 2011-X30 : 2004 YU5

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    M.P.E.C. 2011-X30                                Issued 2011 Dec.  9, 03:56 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 https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2004 YU5
    
                               Revision to MPEC 2004-Y45
    
    Additional Observations:
         K04Y05U KC2011 12 07.93081 23 37 09.27 +70 15 33.9                uEX030J95
         K04Y05U KC2011 12 07.96109 23 37 17.35 +70 15 16.9                uEX030J95
         K04Y05U KC2011 12 07.97466 23 37 20.96 +70 15 11.1          19.5 RuEX030J95
         K04Y05U IC2011 12 09.00829 23 42 09.44 +70 06 35.5                uEX030J95
         K04Y05U IC2011 12 09.01143 23 42 10.21 +70 06 33.4                uEX030J95
         K04Y05U KC2011 12 09.01761 23 42 11.87 +70 06 30.4          19.3 RuEX030J95
    
    Observer details:
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    111207 J95 0.27+ 0.79+    111209 J95 0.29+ 0.79+    MPO 77796   -0.45 day
    
    Orbital elements:
    2004 YU5                                                 Earth MOID = 0.3297 AU
    Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
    M 324.74238              (2000.0)            P               Q
    n   0.28124794     Peri.  141.43710     +0.02771596     -0.94065407
    a   2.3071534      Node   304.38195     +0.78504600     +0.22994821
    e   0.4545527      Incl.   24.19447     +0.61881709     -0.24958715
    P   3.50           H   18.8           G   0.15           U   1
    Residuals in seconds of arc
    041220 704  1.2-  0.2-    041225 J95  1.1-  0.7-    050116 560  0.3+  0.3+
    041220 704  0.5+  0.3-    041228 J95  0.2-  0.4+    050116 560  0.1+  1.1-
    041220 704  0.0   0.2-    041228 J95  0.5+  0.2-    050116 560  0.1+  0.7+
    041220 704  0.6+  0.2-    041228 J95  0.5+  1.1+    050203 704  0.1-  0.4+
    041221 673  0.2+  0.3+    041229 734  0.2+  0.1+    050203 704  0.2-  0.4+
    041221 673  0.1+  0.2+    041229 734  0.5+  0.2+    050203 704  0.2+  0.7+
    041221 673  0.2-  0.4-    041229 734  1.5+  0.5-    050203 704  0.3-  0.4+
    041221 673  0.3-  0.6-    050102 J95  0.1+  0.2+    050308 448  0.6-  0.1-
    041221 704  0.5-  1.8-    050102 J95  0.4+  0.1-    050308 448  0.4-  0.9-
    041221 704  0.2-  0.5-    050102 J95  0.2-  0.1+    050308 448  0.1+  1.0-
    041221 704  0.1+  1.0-    050109 649  0.2-  0.1-    111207 J95  0.2-  0.2+
    041221 704  0.2-  0.5-    050109 649  0.4+  0.1-    111207 J95  0.1-  0.7-
    041221 118  0.1+  0.0     050109 649  0.3+  0.4+    111207 J95  0.2-  0.8+
    041221 118  0.7+  0.6-    050115 649  0.2-  0.0     111209 J95  0.6+  0.1-
    041221 118  1.0-  0.4-    050115 649  0.1-  0.1+    111209 J95  0.0   0.4-
    041225 J95  0.5+  0.0     050115 649  0.2-  0.1-    111209 J95  0.5-  0.2+
    041225 J95  0.0   0.1-    050115 649  0.3-  0.2+
    
    Ephemeris:
    2004 YU5                 a,e,i = 2.31, 0.45, 24                  q = 1.2584
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2011 11 09    22 55 54.1 +71 50 36   0.6062  1.3627   115.0    41.2    20.0
    ...
    2011 11 24    22 55 02.8 +71 28 36   0.5522  1.3126   114.0    43.4    19.8
    ...
    2011 12 02    23 14 00.9 +70 54 20   0.5237  1.2919   114.1    44.1    19.6
    ...
    2011 12 08    23 37 29.7 +70 15 00   0.5027  1.2794   114.7    44.4    19.5
    2011 12 09    23 42 08.9 +70 06 44   0.4992  1.2776   114.8    44.4    19.5
    2011 12 10    23 47 00.0 +69 57 51   0.4958  1.2759   115.0    44.4    19.5
    ...
    2011 12 16    00 19 57.0 +68 48 27   0.4761  1.2672   116.0    44.3    19.4
    ...
    2011 12 24    01 11 22.1 +66 16 07   0.4530  1.2602   117.8    43.7    19.3
    ...
    2012 01 08    02 49 32.4 +57 17 10   0.4284  1.2616   121.6    41.6    19.1
    
    A. U. Tomatic                (C) Copyright 2011 MPC           M.P.E.C. 2011-X30
    

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