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  • MPEC 2013-C55 : 2012 JS17

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    M.P.E.C. 2013-C55                                Issued 2013 Feb. 12, 17:25 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
    
                                       2012 JS17
    
                               Revision to MPEC 2012-K14
    
    Additional Observations:
         K12J17S KC2013 02 05.37611913 03 30.44 +33 48 16.0          22.3 VuEC055H21
         K12J17S KC2013 02 05.39632213 03 28.99 +33 48 44.5          22.6 VuEC055H21
         K12J17S KC2013 02 05.41774513 03 27.43 +33 49 13.9          22.3 VuEC055H21
         K12J17S KC2013 02 12.34762312 53 31.55 +36 27 55.2          22.3 VuEC055H21
         K12J17S KC2013 02 12.36416112 53 29.76 +36 28 16.9          22.1 VuEC055H21
         K12J17S KC2013 02 12.37914612 53 28.10 +36 28 37.2          22.4 VuEC055H21
    
    Observer details:
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov, T. Linder.  0.81-m
        f/4.0 astrograph + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    130205 H21  3.9-  3.5-    130212 H21  3.5-  3.6-    MPO234433   +0.00016 day
    
    Orbital elements:
    2012 JS17                                                Earth MOID = 0.1257 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 152.24061              (2000.0)            P               Q
    n   0.73396713     Peri.  307.39966     +0.95373438     -0.17786898
    a   1.2171711      Node    64.02568     +0.27876906     +0.82512115
    e   0.4198037      Incl.   15.64200     -0.11259907     +0.53622543
    P   1.34           H   21.0           G   0.15           U   4
    Residuals in seconds of arc
    120515 G96  0.1-  0.2-    120516 H36  0.7+  0.4+    120522 H36  0.0   0.3+
    120515 G96  0.0   0.1-    120516 H36 (4.6+  0.5+)   120522 H36  0.9-  0.2+
    120515 G96  0.0   0.2-    120516 G96  0.1+  0.2+    120522 H36  0.6+  0.1-
    120515 G96  0.2-  0.1+    120516 G96  0.1+  0.1-    120529 291  0.3+  0.1+
    120515 G96  0.1+  0.1-    120516 G96  0.5-  0.2+    120529 291  0.1+  0.1+
    120515 G96  0.1+  0.2+    120516 G96  0.0   0.1+    120529 291  0.1+  0.1+
    120515 G96  0.4-  0.1-    120516 204  0.1-  0.8-    120530 291  0.1+  0.1-
    120515 291  0.3-  0.3+    120517 204  0.7-  1.3-    120530 291  0.4+  0.2+
    120515 G96  0.2-  0.1+    120517 291  0.0   0.1+    120530 291  0.2-  0.2+
    120515 291  0.2-  0.2+    120517 291  0.3+  0.3-    120609 H21  0.3+  0.4-
    120515 291  0.0   0.0     120517 291  0.2-  0.4-    120609 H21  0.1-  0.3-
    120515 G96  0.0   0.1+    120517 H21  0.2+  0.8-    120609 H21  0.4-  0.3-
    120515 G96  0.0   0.2+    120517 H21  0.5+  0.0     120620 291  0.1+  0.3+
    120515 G96  0.4-  0.1-    120517 H21  0.7+  0.5+    120620 291  0.1-  0.2-
    120515 I93  0.6+  0.0     120517 E10  1.0-  0.1+    120620 291  0.0   0.1+
    120515 J95  0.4-  0.2+    120517 E10  0.0   0.0     130205 H21  0.3-  0.1+
    120515 J95  0.5+  0.9-    120517 E10 (1.5-  0.2-)   130205 H21  0.1-  0.3+
    120516 I93  0.0   0.5+    120519 H21  0.3-  0.9-    130205 H21  0.0   0.3-
    120516 J95  0.4+  0.8+    120519 H21  0.6-  0.6-    130212 H21  0.0   0.1+
    120516 291 (1.2-  2.1+)   120519 H21  0.3-  0.4-    130212 H21  0.3+  0.3-
    120516 291  0.7-  0.8+    120519 H21  0.1-  0.1-    130212 H21  0.1+  0.0
    
    Ephemeris:
    2012 JS17                a,e,i = 1.22, 0.42, 16                  q = 0.7062
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 01 13    13 08 45.9 +25 30 10   0.7065  1.3552   105.4    44.4    22.6
    ...
    2013 01 28    13 10 00.7 +30 35 27   0.6744  1.4353   118.6    37.1    22.4
    ...
    2013 02 05    13 03 55.4 +33 39 31   0.6619  1.4741   125.7    32.9    22.3
    ...
    2013 02 11    12 55 47.1 +35 57 46   0.6567  1.5013   130.9    29.8    22.3
    2013 02 12    12 54 07.3 +36 20 11   0.6563  1.5057   131.7    29.3    22.3
    2013 02 13    12 52 22.4 +36 42 19   0.6560  1.5100   132.5    28.8    22.2
    ...
    2013 02 19    12 40 07.8 +38 46 26   0.6575  1.5352   136.8    26.2    22.2
    ...
    2013 02 27    12 19 49.6 +40 57 09   0.6690  1.5663   140.7    23.6    22.2
    ...
    2013 03 14    11 36 42.4 +42 26 45   0.7229  1.6172   140.2    23.2    22.4
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-C55
    

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