MPEC 2009-W91 : 2009 WD54
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M.P.E.C. 2009-W91 Issued 2009 Nov. 24, 12:29 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 WD54
Observations:
K09W54D* C2009 11 24.29954 03 21 43.49 +20 23 44.6 20.1 V EW091G96
K09W54D C2009 11 24.30541 03 21 28.88 +20 23 55.1 EW091G96
K09W54D C2009 11 24.31126 03 21 13.93 +20 24 00.2 20.0 V EW091G96
K09W54D C2009 11 24.31709 03 20 59.20 +20 24 07.6 EW091G96
K09W54D C2009 11 24.35300 03 19 30.36 +20 24 52.0 19.7 V EW091G96
K09W54D C2009 11 24.35333 03 19 29.53 +20 24 52.8 19.6 V EW091G96
K09W54D C2009 11 24.35370 03 19 28.66 +20 24 52.9 19.9 V EW091G96
K09W54D C2009 11 24.35404 03 19 27.84 +20 24 53.2 19.8 V EW091G96
K09W54D C2009 11 24.39755 03 17 43.42 +20 25 39.0 20.4 R EW091926
K09W54D C2009 11 24.40027 03 17 37.00 +20 25 40.7 20.1 R EW091926
K09W54D C2009 11 24.40296 03 17 30.75 +20 25 42.0 20.2 R EW091926
K09W54D C2009 11 24.40568 03 17 24.42 +20 25 43.7 19.7 R EW091926
K09W54D C2009 11 24.42314 03 16 44.36 +20 25 42.9 19.5 V EW091G96
K09W54D C2009 11 24.42360 03 16 43.39 +20 25 42.8 19.8 V EW091G96
K09W54D C2009 11 24.42402 03 16 42.34 +20 25 43.3 20.2 V EW091G96
K09W54D C2009 11 24.42449 03 16 41.30 +20 25 43.4 20.0 V EW091G96
Observer details:
926 Tenagra II Observatory. Observers P. R. Holvorcem, M. Schwartz. Measurer
P. R. Holvorcem. 0.81-m f/7 Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer R. E. Hill. 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.
Orbital elements:
2009 WD54 Earth MOID = 0.0028 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 183.92442 (2000.0) P Q
n 1.32638353 Peri. 210.55304 +0.03331347 +0.99843728
a 0.8203956 Node 61.38947 -0.90632838 +0.04910162
e 0.2856930 Incl. 2.92963 -0.42125892 -0.02668377
P 0.74 H 28.7 G 0.15 U 9
Residuals in seconds of arc
091124 G96 1.2- 0.4+ 091124 G96 0.1+ 0.2+ 091124 G96 0.3- 0.1+
091124 G96 2.4+ 2.1+ 091124 G96 0.3+ 0.1+ 091124 G96 0.8+ 0.3-
091124 G96 0.2- 1.3- 091124 926 0.2+ 0.2+ 091124 G96 0.7- 0.0
091124 G96 1.2- 2.0- 091124 926 0.4- 0.2+ 091124 G96 0.0 0.1-
091124 G96 0.0 0.0 091124 926 0.1+ 0.1-
091124 G96 0.3- 0.4+ 091124 926 0.3+ 0.0
Ephemeris:
2009 WD54 a,e,i = 0.82, 0.29, 3 q = 0.5860
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 11 25 02 59.14 +20 37.4 0.0162 1.003 165.2 14.6 20.6
2009 11 26 02 36.84 +20 37.9 0.0199 1.006 159.0 20.6 21.2
2009 11 27 02 21.72 +20 32.3 0.0238 1.008 154.5 25.0 21.7
2009 11 28 02 10.94 +20 25.3 0.0277 1.011 151.0 28.3 22.2
2009 11 29 02 02.93 +20 18.6 0.0316 1.013 148.1 31.0 22.6
2009 11 30 01 56.81 +20 12.7 0.0356 1.016 145.7 33.2 22.9
2009 12 01 01 52.03 +20 07.7 0.0396 1.018 143.6 35.1 23.2
2009 12 02 01 48.21 +20 03.4 0.0437 1.021 141.7 36.8 23.4
2009 12 03 01 45.14 +19 59.8 0.0477 1.023 140.0 38.3 23.7
2009 12 04 01 42.64 +19 56.9 0.0518 1.025 138.4 39.7 23.9
2009 12 05 01 40.59 +19 54.5 0.0559 1.027 137.0 40.9 24.1
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-W91
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