MPEC 2007-B28 : 2007 BS2

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M.P.E.C. 2007-B28                                Issued 2007 Jan. 22, 15:18 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://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2007 BS2

Observations:
     K07B02S* C2007 01 17.34852 09 56 11.38 +18 18 17.8          20.9 V EB028691
     K07B02S  C2007 01 17.36583 09 56 14.48 +18 18 55.0          20.5 V EB028691
     K07B02S  C2007 01 17.38322 09 56 17.51 +18 19 31.6          20.8 V EB028691
     K07B02S  C2007 01 19.22369 10 02 24.63 +19 24 51.7          21.0 R EB028734
     K07B02S  C2007 01 19.22808 10 02 25.30 +19 25 01.8          20.1 R EB028734
     K07B02S  C2007 01 19.23247 10 02 26.12 +19 25 11.6          20.8 R EB028734
     K07B02S  C2007 01 20.29323110 05 52.40 +20 03 18.9          21.0   EB028H55
     K07B02S  C2007 01 20.30426910 05 54.16 +20 03 40.3          20.9   EB028H55
     K07B02S  C2007 01 20.31347210 05 55.88 +20 04 01.4          20.9   EB028H55
     K07B02S  C2007 01 21.91971 10 11 08.01 +21 01 27.2                 EB028J95
     K07B02S  C2007 01 21.93166 10 11 10.25 +21 01 53.4                 EB028J95
     K07B02S  C2007 01 21.94526 10 11 12.68 +21 02 23.4          20.0 R EB028J95

Observer details:
691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
    reflector + CCD.
734 Farpoint Observatory.  Observer G. Hug.  0.7-m reflector + CCD.
H55 Astronomical Research Observatory, Charleston.  Observer R. Holmes.
    0.81-m f/4.0 astrograph + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2007 BS2                                                 Earth MOID = 0.1316 AU
Epoch 2007 Apr. 10.0 TT = JDT 2454200.5                 MPC
M  40.55169              (2000.0)            P               Q
n   0.50833553     Peri.    9.12714     -0.54439623     -0.83268083
a   1.5548998      Node   113.91738     +0.76244372     -0.54158016
e   0.2833748      Incl.    6.36660     +0.34973178     -0.11547111
P   1.94           H   23.4           G   0.15           U   8
Residuals in seconds of arc
070117 691  0.1+  0.1+    070119 734  0.6-  0.3+    070120 H55  0.0   0.1-
070117 691  0.4+  0.2+    070119 734  0.3-  0.4+    070121 J95  0.3-  0.4+
070117 691  0.4-  0.4-    070120 H55  0.7+  1.4+    070121 J95  0.5+  0.1-
070119 734  1.2+  0.0     070120 H55  1.6-  1.2-    070121 J95  0.1-  0.4-

Ephemeris:
2007 BS2                 a,e,i = 1.55, 0.28, 6                   q = 1.1143
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2007 01 20    10 04.90   +19 53.1    0.145    1.114   152.2    24.3    20.6
2007 01 30    10 35.36   +25 43.2    0.145    1.117   154.0    22.8    20.5
2007 02 09    10 59.57   +30 32.2    0.154    1.127   153.9    22.6    20.7
2007 02 19    11 15.73   +33 41.2    0.171    1.143   152.9    23.2    21.0
2007 03 01    11 24.85   +34 58.9    0.194    1.165   151.4    24.0    21.3
2007 03 11    11 29.57   +34 37.2    0.224    1.192   149.3    25.2    21.7

Timothy B. Spahr             (C) Copyright 2007 MPC           M.P.E.C. 2007-B28

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