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  • MPEC 2013-M09 : 2011 BT15

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    M.P.E.C. 2013-M09                                Issued 2013 June 17, 22:26 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 BT15
    
                               Revision to MPEC 2011-B43
    
    Additional Observations:
         K11B15T ]C2013 06 10.39391 20 22 44.76 -18 40 58.9          22.2 RoEM009695
         K11B15T ]C2013 06 10.40511 20 22 44.77 -18 40 59.5          22.4 RoEM009695
         K11B15T ]C2013 06 10.43104 20 22 44.81 -18 41 01.4          22.2 RoEM009695
         K11B15T ]C2013 06 10.44209 20 22 44.82 -18 41 02.0          22.3 RoEM009695
         K11B15T ]C2013 06 10.45302 20 22 44.84 -18 41 02.8          22.2 RoEM009695
         K11B15T ]C2013 06 16.33581 20 22 30.00 -18 51 29.0          22.1 RoEM009695
         K11B15T ]C2013 06 16.38635 20 22 29.08 -18 51 37.2          22.2 RoEM009695
         K11B15T ]C2013 06 16.41508 20 22 28.56 -18 51 41.4          21.9 RoEM009695
         K11B15T ]C2013 06 16.43954 20 22 28.10 -18 51 45.1          22.0 RoEM009695
         K11B15T ]C2013 06 16.46133 20 22 27.72 -18 51 48.4          22.0 RoEM009695
    
    Observer details:
    695 Kitt Peak.  Observers M. Trueblood, N. Kutsop, D. Bell, R. Crawford.
        Measurer D. Bell.  2.1-m f/7.7 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
    130610 695 0.15+ 0.03+    130616 695 0.16+ 0.03+    MPO194133   -0.14 day
    
    Orbital elements:
    2011 BT15                                           PHA, Earth MOID = 0.0009 AU
    Epoch 2013 Apr. 18.0 TT = JDT 2456400.5                 MPC
    M 213.54426              (2000.0)            P               Q
    n   0.66757735     Peri.  308.46479     +0.58313700     -0.81189580
    a   1.2965870      Node   105.84143     +0.75406918     +0.52820627
    e   0.3036993      Incl.    1.65979     +0.30221005     +0.24864299
    P   1.48           H   21.8           G   0.15           U   3
    Residuals in seconds of arc
    110124 F51  0.1-  0.5-    110205 291  0.4+  0.3+    110301 291  0.7-  0.8-
    110124 F51  0.2+  0.4-    110206 291 (4.0-  0.7-)   110301 291  0.5+  0.6-
    110124 F51  0.2-  0.5-    110206 291  0.9-  0.4-    110301 291  1.3-  0.6-
    110125 F65  0.1+  0.0     110206 291 (1.9-  0.1-)   110301 H01  0.3-  0.2+
    110126 291  0.2+  0.4-    110207 291 (1.9+  1.6-)   110301 H01  0.2-  0.1+
    110126 291  0.1-  0.3+    110207 291  0.1+  1.4-    110301 H01  0.2-  0.1+
    110126 291  1.3+  0.0     110207 291  0.7-  0.3+    110301 H01  0.2-  0.1+
    110126 291  1.2+  0.1+    110208 291  0.9-  0.5+    110303 695  0.2-  0.2+
    110126 F65 (1.6+  1.3+)   110208 291  1.1+  0.2+    110303 695  0.5-  0.1+
    110126 F65 (1.7+  1.1+)   110208 291  0.4+  0.0     110303 695  0.0   0.1+
    110126 F65  0.1+  0.3-    110220 H21  1.2-  0.2+    110304 291  1.0+  0.0
    110127 291 (1.7+  0.2+)   110220 H21  0.1-  0.6-    110304 291  0.5+  1.0+
    110127 291  0.6+  0.1+    110220 H21  0.8+  1.5-    110304 291  0.1+  0.1+
    110128 695  0.1-  0.1-    110222 291  1.4+  0.0     110304 291  0.3+  0.2+
    110128 695  0.2-  0.1+    110222 291 (2.0+  0.1+)   110306 291  0.2+  0.4-
    110128 695  0.0   0.1+    110222 291  0.3-  0.0     110306 291 (1.6-  0.5+)
    110128 695  0.2-  0.1-    110223 291  0.3-  0.1-    130610 695  0.1+  0.1+
    110128 291 (2.6-  0.9-)   110223 291  0.6-  0.3-    130610 695  0.0   0.3+
    110128 291  0.3-  0.2-    110225 291  0.5-  0.7+    130610 695  0.0   0.2+
    110129 291  0.7+  0.2+    110225 291  0.3+  0.5-    130610 695  0.0   0.3+
    110129 291  0.5-  0.2+    110226 F65  0.2-  0.3+    130610 695  0.0   0.2+
    110129 291  0.6-  0.4-    110226 F65  0.4-  0.2-    130616 695  0.2+  0.3+
    110131 568  0.2-  0.1+    110226 F65  0.3-  0.1-    130616 695  0.2-  0.2+
    110131 568  0.0   0.2+    110226 F65  0.2+  1.3-    130616 695  0.2-  0.4+
    110131 568  0.0   0.1+    110226 F65  0.2+  0.1+    130616 695  0.3-  0.3+
    110205 291 (2.9-  0.2+)   110226 F65  1.4+  0.3-    130616 695  0.0   0.2+
    110205 291  0.8+  0.5+    110226 F65  0.0   0.1+
    
    Ephemeris:
    2011 BT15                a,e,i = 1.30, 0.30, 2                   q = 0.9028
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2013 05 18    20 08 37.8 -19 03 39   0.8519  1.5895   116.8    34.6    23.9
    ...
    2013 06 02    20 20 07.9 -18 39 01   0.6985  1.5486   128.5    30.8    23.3
    ...
    2013 06 10    20 22 41.6 -18 40 24   0.6232  1.5240   135.6    27.8    22.9
    ...
    2013 06 16    20 22 33.4 -18 50 29   0.5706  1.5044   141.4    24.9    22.6
    2013 06 17    20 22 20.6 -18 53 00   0.5622  1.5010   142.4    24.4    22.6
    2013 06 18    20 22 04.4 -18 55 47   0.5539  1.4976   143.4    23.9    22.5
    ...
    2013 06 24    20 19 11.4 -19 18 03   0.5066  1.4766   149.9    20.2    22.2
    ...
    2013 07 02    20 11 39.1 -20 03 21   0.4505  1.4471   159.4    14.3    21.7
    ...
    2013 07 17    19 45 20.1 -22 10 26   0.3710  1.3872   179.1     0.7    20.5
    
    A. U. Tomatic                (C) Copyright 2013 MPC           M.P.E.C. 2013-M09
    

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