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  • MPEC 2012-X45 : 2012 XK55

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    M.P.E.C. 2012-X45                                Issued 2012 Dec. 10, 20:43 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
    
                                       2012 XK55
    
    Observations:
         K12X55K* C2012 12 08.16804 03 29 48.73 +20 34 55.3          21.6 VrEX045G96
         K12X55K  C2012 12 08.17327 03 29 49.92 +20 34 47.8          21.7 VrEX045G96
         K12X55K  C2012 12 08.17860 03 29 51.10 +20 34 39.4          21.2 VrEX045G96
         K12X55K  C2012 12 08.18389 03 29 52.33 +20 34 32.1          21.2 VrEX045G96
         K12X55K  C2012 12 08.21027 03 29 58.38 +20 33 52.5          20.7 VrEX045G96
         K12X55K  C2012 12 08.21170 03 29 58.66 +20 33 50.8          21.2 VrEX045G96
         K12X55K  C2012 12 08.21312 03 29 58.99 +20 33 49.1          21.3 VrEX045G96
         K12X55K  C2012 12 08.21456 03 29 59.35 +20 33 46.6          20.8 VrEX045G96
         K12X55K KC2012 12 08.29395 03 30 17.40 +20 31 48.3          21.2 RoEX045291
         K12X55K KC2012 12 08.29641 03 30 17.98 +20 31 44.4          21.5 RoEX045291
         K12X55K KC2012 12 08.29888 03 30 18.54 +20 31 40.6          21.1 RoEX045291
         K12X55K  C2012 12 09.23396 03 34 11.56 +20 08 13.8          21.3 VrEX045G96
         K12X55K  C2012 12 09.23596 03 34 12.18 +20 08 10.2          21.4 VrEX045G96
         K12X55K  C2012 12 09.23796 03 34 12.57 +20 08 06.9          20.7 VrEX045G96
         K12X55K  C2012 12 09.23994 03 34 13.04 +20 08 04.6          21.5 VrEX045G96
         K12X55K FC2012 12 10.01297 03 37 25.15 +19 48 13.5          21.1 RtEX045204
         K12X55K FC2012 12 10.04583 03 37 33.06 +19 47 21.8                tEX045204
         K12X55K  C2012 12 10.17935 03 38 09.70 +19 44 12.4          21.3 VrEX045G96
         K12X55K  C2012 12 10.18124 03 38 10.10 +19 44 09.8          21.6 VrEX045G96
         K12X55K  C2012 12 10.18560 03 38 11.25 +19 44 03.4          21.1 VrEX045G96
         K12X55K  C2012 12 10.19039 03 38 12.26 +19 43 54.5          21.7 VrEX045G96
         K12X55K  C2012 12 10.26160 03 38 31.388+19 42 14.91         21.6 wLEX045F51
         K12X55K  C2012 12 10.27711 03 38 35.025+19 41 51.82         21.6 wLEX045F51
         K12X55K  C2012 12 10.31819 03 38 44.606+19 40 50.51         21.3 wLEX045F51
    
    Observer details:
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers N. Primak, A. Schultz, S. Watters,
        T. Goggia.  Measurer PS1 Science Consortium.  1.8-m Ritchey-Chretien
        + CCD.
    G96 Mt. Lemmon Survey.  Observers R. E. Hill, R. E.  Measurers A. Boattini,
        E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson,
        R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
    
    Orbital elements:
    2012 XK55                                                Earth MOID = 0.1618 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M 342.46467              (2000.0)            P               Q
    n   0.23477380     Peri.  183.09053     +0.19604229     -0.97616032
    a   2.6023735      Node   255.61800     +0.90172862     +0.21678783
    e   0.5596487      Incl.    5.51879     +0.38529587     -0.01068031
    P   4.20           H   23.9           G   0.15           U   8
    Residuals in seconds of arc
    121208 G96  0.1+  0.1+    121208 291  0.2-  0.3+    121210 204  0.4+  0.4-
    121208 G96  0.1+  0.3+    121208 291  0.1+  0.2+    121210 G96  0.2-  0.1-
    121208 G96  0.5-  0.4-    121208 291  0.0   0.1+    121210 G96  0.8-  0.1+
    121208 G96  0.2-  0.0     121209 G96  1.2-  0.6+    121210 G96  1.0+  0.2+
    121208 G96  0.5+  0.8-    121209 G96  1.1+  0.1+    121210 G96  0.6-  1.5-
    121208 G96  0.2-  0.4-    121209 G96  0.1+  0.2-    121210 F51  0.0   0.3+
    121208 G96  0.1-  0.0     121209 G96  0.3+  0.5+    121210 F51  0.1-  0.1+
    121208 G96  0.4+  0.4-    121210 204  0.1+  0.6-    121210 F51  0.1+  0.0
    
    Ephemeris:
    2012 XK55                a,e,i = 2.60, 0.56, 6                   q = 1.1460
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 11 10    02 08 39.6 +28 14 49   0.2317  1.2142   163.6    13.4    21.9
    ...
    2012 11 25    02 42 19.6 +25 16 46   0.1895  1.1677   160.8    16.2    21.5
    ...
    2012 12 03    03 09 26.3 +22 37 49   0.1769  1.1531   159.6    17.4    21.4
    ...
    2012 12 09    03 33 13.1 +20 14 19   0.1724  1.1473   158.7    18.1    21.3
    2012 12 10    03 37 23.2 +19 49 00   0.1722  1.1468   158.6    18.3    21.3
    2012 12 11    03 41 36.0 +19 23 25   0.1720  1.1464   158.4    18.4    21.3
    ...
    2012 12 17    04 07 28.3 +16 47 55   0.1739  1.1466   157.5    19.2    21.4
    ...
    2012 12 25    04 41 51.4 +13 32 20   0.1841  1.1540   155.9    20.4    21.5
    ...
    2013 01 09    05 38 27.5 +09 14 12   0.2263  1.1883   152.2    22.7    22.1
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-X45
    

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