MPEC 2006-Y18 : 2006 YF

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M.P.E.C. 2006-Y18                                Issued 2006 Dec. 17, 15:32 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

                                    2006 YF

Observations:
     K06Y00F* C2006 12 16.46366 08 15 15.39 +19 55 58.9          20.5 V EY018691
     K06Y00F  C2006 12 16.48100 08 15 13.35 +19 55 53.4          20.6 V EY018691
     K06Y00F  C2006 12 16.49833 08 15 11.32 +19 55 47.8          21.2 V EY018691
     K06Y00F  C2006 12 17.18599 08 13 55.33 +19 52 17.6                 EY018J95
     K06Y00F  C2006 12 17.19249 08 13 54.66 +19 52 15.8                 EY018J95
     K06Y00F FC2006 12 17.19924 08 13 53.86 +19 52 14.3          20.3 R EY018J95
     K06Y00F  C2006 12 17.28676 08 13 45.51 +19 51 54.3          20.8 V EY018G96
     K06Y00F  C2006 12 17.29046 08 13 45.12 +19 51 53.2          20.7 V EY018G96
     K06Y00F  C2006 12 17.29417 08 13 44.68 +19 51 52.2          19.4 V EY018G96

Observer details:
691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
    reflector + CCD.
G96 Mt. Lemmon Survey.  Observer E. J. Christensen.  Measurers E. C. Beshore,
    E. J. Christensen, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
    R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2006 YF                                                  Earth MOID = 0.0693 AU
Epoch 2006 Dec. 11.0 TT = JDT 2454080.5                 MPC
M  34.21357              (2000.0)            P               Q
n   0.45611690     Peri.  102.46484     +0.95338771     -0.29318843
a   1.6714188      Node   274.61719     +0.24150959     +0.88319519
e   0.3952633      Incl.    4.10552     +0.18090050     +0.36606938
P   2.16           H   20.9           G   0.15
From 9 observations 2006 Dec. 16-17.  E-assumed.

Ephemeris:
2006 YF                  a,e,i = 1.67, 0.40, 4                   q = 1.0108
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2006 12 11    08 24.43   +20 26.4    0.360    1.265   135.2    33.3    20.6
2006 12 21    08 06.52   +19 35.3    0.376    1.321   149.3    22.4    20.5
2006 12 31    07 45.46   +19 00.2    0.406    1.378   164.1    11.3    20.3
2007 01 10    07 25.41   +18 35.4    0.452    1.435   176.5     2.4    20.2
2007 01 20    07 09.66   +18 18.7    0.518    1.492   166.5     8.9    20.9
2007 01 30    06 59.86   +18 08.8    0.601    1.548   154.3    16.0    21.6

Kyle E. Smalley              (C) Copyright 2006 MPC           M.P.E.C. 2006-Y18

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