MPEC 2009-Y29 : 2009 YQ

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M.P.E.C. 2009-Y29                                Issued 2009 Dec. 19, 14:53 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.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                    2009 YQ

Observations:
     K09Y00Q* C2009 12 18.47637 10 07 19.59 +02 35 28.8          21.3 V EY029291
     K09Y00Q  C2009 12 18.48348 10 07 21.23 +02 35 08.9          21.5 V EY029291
     K09Y00Q  C2009 12 18.49100 10 07 22.97 +02 34 48.0          21.3 V EY029291
     K09Y00Q HC2009 12 19.38846 10 11 00.36 +01 52 36.2                 EY029291
     K09Y00Q HC2009 12 19.39717 10 11 02.45 +01 52 09.4                 EY029291
     K09Y00Q  C2009 12 19.43767 10 11 12.08 +01 50 13.9          21.1 V EY029G96
     K09Y00Q  C2009 12 19.44434 10 11 13.66 +01 49 54.5          20.9 V EY029G96
     K09Y00Q  C2009 12 19.45105 10 11 15.28 +01 49 34.9          21.6 V EY029G96
     K09Y00Q  C2009 12 19.45774 10 11 16.90 +01 49 15.9          20.9 V EY029G96
     K09Y00Q KC2009 12 19.50849 10 11 29.06 +01 46 48.5          20.6 R EY029H01
     K09Y00Q  C2009 12 19.53590 10 11 35.66 +01 45 29.1          21.1 R EY029H01
     K09Y00Q KC2009 12 19.54348 10 11 37.50 +01 45 07.0          20.8 R EY029H01

Observer details:
291 LPL/Spacewatch II.  Observers J. V. Scotti, T. H. Bressi.  Measurer
    T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
G96 Mt. Lemmon Survey.  Observer A. R. Gibbs.  Measurers E. C. Beshore,
    A. Boattini, 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.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.

Orbital elements:
2009 YQ                                                  Earth MOID = 0.0702 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5                  MPC
M 337.64820              (2000.0)            P               Q
n   0.39934137     Peri.  306.71271     -0.85797620     +0.49476579
a   1.8263045      Node   263.32282     -0.41571346     -0.82673212
e   0.6382049      Incl.    7.99502     -0.30176011     -0.26780742
P   2.47           H   20.6           G   0.15           U   9
Residuals in seconds of arc
091218 291  0.0   0.2+    091219 291  0.3+  1.0-    091219 G96  0.6-  0.3+
091218 291  0.0   0.0     091219 G96  0.7-  0.4+    091219 H01  0.2+  0.0
091218 291  0.0   0.1-    091219 G96  1.0-  0.2+    091219 H01  0.4+  0.0
091219 291  0.3+  0.8+    091219 G96  0.8-  0.0     091219 H01  0.6+  0.1-

Ephemeris:
2009 YQ                  a,e,i = 1.83, 0.64, 8                   q = 0.6607
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 12 15    09 54.34   +05 04.3    0.533    1.295   113.8    44.0    21.5
2009 12 25    10 36.65   -03 13.4    0.409    1.192   110.8    50.5    20.9
2010 01 04    11 42.37   -15 58.7    0.318    1.087   100.4    62.9    20.5
2010 01 14    13 30.10   -31 27.3    0.281    0.982    81.4    82.2    20.7
2010 01 24    15 48.96   -39 39.3    0.316    0.880    61.7    99.8    21.4

Timothy B. Spahr             (C) Copyright 2009 MPC           M.P.E.C. 2009-Y29

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