MPEC 2009-W89 : 2009 WB54
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M.P.E.C. 2009-W89 Issued 2009 Nov. 24, 12:24 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 WB54
Observations:
K09W54B*tC2009 11 24.19708 03 22 54.84 +18 15 23.2 EW089291
K09W54B tC2009 11 24.20099 03 22 52.93 +18 18 32.1 18.9 V EW089291
K09W54B tC2009 11 24.20625 03 22 50.39 +18 22 51.4 18.8 V EW089291
K09W54B tC2009 11 24.21746 03 22 45.04 +18 31 55.1 EW089291
K09W54B tC2009 11 24.22135 03 22 43.12 +18 35 03.1 19.1 V EW089291
K09W54B tC2009 11 24.22522 03 22 41.29 +18 38 12.3 19.1 V EW089291
K09W54B tC2009 11 24.23566 03 22 36.17 +18 46 35.4 EW089291
K09W54B tC2009 11 24.24238 03 22 32.92 +18 51 58.0 19.2 V EW089291
K09W54B tC2009 11 24.24641 03 22 31.00 +18 55 12.1 18.9 V EW089291
K09W54B tC2009 11 24.32662 03 21 52.30 +19 58 01.0 19.1 V EW089291
K09W54B tC2009 11 24.33054 03 21 50.41 +20 01 02.8 18.7 V EW089291
K09W54B tC2009 11 24.33480 03 21 48.37 +20 04 18.5 18.5 V EW089291
K09W54B C2009 11 24.34947 03 21 41.23 +20 15 30.6 19.0 R EW089651
K09W54B C2009 11 24.34992 03 21 41.01 +20 15 50.9 19.1 R EW089651
K09W54B C2009 11 24.35038 03 21 40.84 +20 16 11.9 19.2 R EW089651
K09W54B C2009 11 24.35300 03 21 39.78 +20 18 05.7 18.4 V EW089G96
K09W54B C2009 11 24.35333 03 21 39.60 +20 18 21.6 18.7 V EW089G96
K09W54B C2009 11 24.35370 03 21 39.45 +20 18 38.2 18.7 V EW089G96
K09W54B C2009 11 24.35404 03 21 39.31 +20 18 53.7 18.7 V EW089G96
K09W54B tC2009 11 24.36776 03 21 33.24 +20 29 19.1 18.9 V EW089291
K09W54B tC2009 11 24.37165 03 21 31.47 +20 32 11.3 EW089291
K09W54B tC2009 11 24.37613 03 21 29.41 +20 35 36.8 18.9 V EW089291
K09W54B tC2009 11 24.39629 03 21 20.49 +20 50 41.6 19.1 V EW089291
K09W54B tC2009 11 24.40058 03 21 18.63 +20 53 53.9 19.1 V EW089291
K09W54B tC2009 11 24.40527 03 21 16.64 +20 57 20.1 19.1 V EW089291
K09W54B C2009 11 24.40786 03 21 15.29 +20 59 17.2 19.6 R EW089926
K09W54B C2009 11 24.40953 03 21 14.58 +21 00 30.8 19.6 R EW089926
K09W54B C2009 11 24.41119 03 21 13.88 +21 01 44.6 19.4 R EW089926
Observer details:
291 LPL/Spacewatch II. Observer R. S. McMillan. 1.8-m f/2.7 reflector + CCD.
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
Newtonian reflector + CCD.
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 WB54 Earth MOID = 0.0195 AU
Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 MPC
M 55.81636 (2000.0) P Q
n 0.63051957 Peri. 300.30411 +0.96012204 -0.01201404
a 1.3469051 Node 61.69955 +0.16042542 +0.84190873
e 0.3436398 Incl. 18.49620 -0.22897457 +0.53948620
P 1.56 H 26.4 G 0.15 U 9
Residuals in seconds of arc
091124 291 0.3+ 1.0+ 091124 291 0.3- 1.1+ 091124 291 (0.3+ 3.9-)
091124 291 0.3- 1.4- 091124 291 0.8- 1.0+ 091124 291 0.3- 0.4-
091124 291 0.4- 1.0+ 091124 651 0.0 0.8+ 091124 291 0.4- 0.9+
091124 291 0.3+ 0.7- 091124 651 0.2- 0.6+ 091124 291 0.3- 2.0+
091124 291 0.2- 1.3- 091124 651 0.4+ 0.7+ 091124 291 0.1+ 0.4-
091124 291 0.4+ 0.6+ 091124 G96 0.4+ 0.7- 091124 926 0.3+ 0.0
091124 291 0.3- 0.1+ 091124 G96 0.0 0.2+ 091124 926 0.3+ 0.4-
091124 291 0.1- 0.2- 091124 G96 0.3+ 0.0 091124 926 0.4+ 0.2-
091124 291 0.5+ 0.7+ 091124 G96 0.5+ 0.0
091124 291 0.3+ 0.1- 091124 291 0.5+ 0.4-
Ephemeris:
2009 WB54 a,e,i = 1.35, 0.34, 18 q = 0.8841
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 11 25 03 18.34 +27 34.6 0.0295 1.016 167.8 11.9 19.5
2009 11 26 03 13.84 +35 45.1 0.0356 1.021 161.2 18.2 20.1
2009 11 27 03 10.18 +41 25.5 0.0423 1.026 155.9 23.1 20.7
2009 11 28 03 07.19 +45 30.3 0.0492 1.030 152.0 26.7 21.1
2009 11 29 03 04.71 +48 32.4 0.0564 1.035 149.0 29.4 21.5
2009 11 30 03 02.66 +50 52.1 0.0638 1.040 146.7 31.4 21.8
2009 12 01 03 00.97 +52 41.7 0.0712 1.045 144.8 32.9 22.1
2009 12 02 02 59.58 +54 09.4 0.0787 1.050 143.3 34.1 22.4
2009 12 03 02 58.44 +55 20.9 0.0863 1.055 142.0 35.1 22.6
2009 12 04 02 57.52 +56 19.7 0.0940 1.060 140.9 35.9 22.9
2009 12 05 02 56.80 +57 08.7 0.102 1.065 140.0 36.5 23.1
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-W89
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