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  • MPEC 2013-Y57 : 2011 XS2

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    M.P.E.C. 2013-Y57                                Issued 2013 Dec. 30, 02:23 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.minorplanetcenter.net/    ISSN 1523-6714
    
                                       2011 XS2
    
                               Revision to MPEC 2011-X43
    
    Additional Observations:
         K11X02S  C2013 12 28.06704 23 18 38.05 -26 28 20.4          20.0 RoEY057926
         K11X02S  C2013 12 28.07078 23 18 40.53 -26 28 20.0          20.0 RoEY057926
         K11X02S  C2013 12 28.07451 23 18 43.04 -26 28 18.8          19.9 RoEY057926
         K11X02S  C2013 12 30.06773 23 40 32.43 -26 17 12.5          19.3 RoEY057926
         K11X02S  C2013 12 30.07146 23 40 34.80 -26 17 10.7          19.5 RoEY057926
         K11X02S  C2013 12 30.07520 23 40 37.19 -26 17 07.9          19.2 RoEY057926
    
    Observer details:
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  0.81-m
        f/7 Ritchey-Chretien + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    131228 926 0.04- 0.02+    131230 926 0.04- 0.01+    MPO224730   +0.019 day
    
    Orbital elements:
    2011 XS2                                                 Earth MOID = 0.0899 AU
    Epoch 2013 Nov. 4.0 TT = JDT 2456600.5                  MPC
    M 353.45349              (2000.0)            P               Q
    n   0.46895077     Peri.   99.36260     +0.72233416     +0.58552240
    a   1.6407833      Node   225.95421     -0.63428019     +0.77295451
    e   0.7407093      Incl.   30.79209     +0.27553947     +0.24434576
    P   2.10           H   18.2           G   0.15           U   3
    Residuals in seconds of arc
    111213 E12  0.4+  0.1-    111215 807  0.0   0.0     111223 807  0.1-  0.1+
    111213 E12  0.1-  0.1-    111216 E12  0.2-  0.0     111223 807  0.1-  0.1-
    111213 E12  0.2-  0.1+    111216 E12  0.1-  0.1+    111223 807  0.0   0.1-
    111213 E12  0.8+  0.2-    111216 E12  0.2-  0.2+    111223 807  0.0   0.1+
    111213 E12  0.0   0.1+    111217 807  0.0   0.0     111223 E12  0.1+  0.4-
    111213 E12  0.1-  0.0     111217 807  0.1-  0.0     111225 E12  0.1+  0.0
    111213 E12  0.3-  0.1+    111217 807  0.0   0.0     111227 E12  0.0   0.1+
    111213 E12  0.1+  0.0     111217 807  0.0   0.2+    111227 E12  0.1-  0.1-
    111213 E12  0.2+  0.1+    111217 807  0.1-  0.1-    111230 E12  0.2+  0.2+
    111213 E12  0.1+  0.0     111218 807  0.2-  0.2+    111230 E12  0.1+  0.1-
    111213 E12  0.2-  0.1+    111218 807  0.0   0.1+    111231 E12  0.1+  0.2-
    111213 E12  0.1+  0.1+    111218 807  0.1+  0.0     111231 474  0.3-  0.0
    111213 E12  0.0   0.2-    111218 807  0.0   0.0     111231 E12  0.4-  0.1-
    111214 822  0.1-  1.2+    111218 807  0.2-  0.1-    111231 474  0.3-  0.0
    111214 822  0.6-  0.2+    111218 807  0.2+  0.2+    111231 474  0.3-  0.2+
    111214 822  0.1-  0.4-    111218 807  0.0   0.1-    120103 E12  0.3+  0.0
    111214 807  0.0   0.2+    111218 I20  0.0   1.0+    120111 807  0.1+  0.1+
    111214 807  0.1+  0.3+    111218 I20  0.1+  0.6-    120111 807  0.0   0.2-
    111214 807  0.2+  0.1-    111218 I20  0.3+  0.0     120111 807  0.2+  0.2-
    111214 807  0.0   0.1-    111219 807  0.0   0.0     120111 807  0.1-  0.2-
    111214 807  0.3+  0.2+    111219 807  0.0   0.1-    120111 807  0.0   0.3-
    111214 807  0.0   0.3+    111219 807  0.0   0.1-    120117 E12  0.2-  0.2-
    111214 E12  0.2-  0.2+    111219 807  0.1-  0.1-    120117 E12  0.1+  0.2+
    111214 E12  0.2-  0.0     111219 807  0.1-  0.1-    120219 291  0.4-  0.5+
    111214 E12  0.2-  0.2-    111220 807  0.1-  0.0     120219 291  0.1-  0.2+
    111214 E12  0.1+  0.5-    111220 807  0.1-  0.1-    120219 291  0.1+  0.4+
    111215 807  0.1-  0.2+    111220 807  0.1-  0.1-    131228 926  0.2+  0.0
    111215 807  0.1-  0.1+    111220 807  0.1-  0.0     131228 926  0.0   0.3-
    111215 807  0.1+  0.0     111220 807  0.1-  0.0     131228 926  0.2+  0.3+
    111215 807  0.0   0.1+    111220 807  0.0   0.0     131230 926  0.3-  0.0
    111215 807  0.0   0.0     111220 E12  0.0   0.0     131230 926  0.1-  0.1-
    111215 807  0.0   0.0     111220 D90  0.0   0.1+    131230 926  0.3+  0.8+
    111215 807  0.1+  0.0     111220 D90  0.0   0.0
    111215 807  0.0   0.0     111220 D90  0.1+  0.3+
    
    Ephemeris:
    2011 XS2                 a,e,i = 1.64, 0.74, 31                  q = 0.4254
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 11 30    18 26 03.0 -13 32 55   0.7688  0.5026    30.2    99.6    19.7
    ...
    2013 12 15    20 42 59.3 -22 15 54   0.5379  0.7085    44.4   103.5    19.9
    ...
    2013 12 23    22 18 43.9 -25 57 35   0.5099  0.8266    57.1    91.7    19.6
    ...
    2013 12 29    23 29 00.1 -26 24 22   0.5320  0.9136    66.6    81.1    19.5
    2013 12 30    23 39 49.0 -26 17 33   0.5387  0.9279    68.0    79.4    19.5
    2013 12 31    23 50 18.1 -26 08 06   0.5462  0.9421    69.4    77.7    19.5
    ...
    2014 01 06    00 45 48.3 -24 30 23   0.6049  1.0258    76.4    68.7    19.6
    ...
    2014 01 14    01 41 29.8 -21 29 42   0.7094  1.1330    82.3    59.3    19.9
    ...
    2014 01 29    02 49 20.5 -15 59 02   0.9487  1.3205    86.1    48.1    20.5
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-Y57
    

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