MPEC 2009-B31 : 2009 BW2
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M.P.E.C. 2009-B31 Issued 2009 Jan. 20, 23:17 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 BW2
Observations:
K09B02W* C2009 01 20.29594 08 12 37.40 +44 59 45.4 19.2 V EB031703
K09B02W C2009 01 20.30135 08 12 35.31 +45 00 16.0 19.6 V EB031703
K09B02W C2009 01 20.30685 08 12 33.01 +45 00 44.7 18.8 V EB031703
K09B02W C2009 01 20.31237 08 12 30.88 +45 01 14.8 19.5 V EB031703
K09B02W C2009 01 20.33644 08 12 20.42 +45 03 17.5 19.2 R EB031H01
K09B02W C2009 01 20.33989 08 12 19.04 +45 03 35.7 19.1 R EB031H01
K09B02W C2009 01 20.34559 08 12 17.68 +45 04 13.1 18.7 R EB031854
K09B02W C2009 01 20.34730 08 12 16.11 +45 04 14.5 19.0 R EB031H01
K09B02W C2009 01 20.34943 08 12 16.18 +45 04 33.3 19.3 R EB031854
K09B02W C2009 01 20.35326 08 12 14.74 +45 04 53.7 18.8 R EB031854
K09B02W C2009 01 20.35668 08 12 12.42 +45 05 03.1 19.2 R EB031H01
K09B02W C2009 01 20.36119 08 12 10.64 +45 05 26.3 18.8 R EB031H01
K09B02W C2009 01 20.95105 08 09 17.55 +45 58 48.8 EB031J95
K09B02W C2009 01 20.95399 08 09 16.36 +45 59 05.9 EB031J95
K09B02W C2009 01 20.95695 08 09 15.19 +45 59 23.1 19.3 R EB031J95
Observer details:
703 Catalina Sky Survey. Observer A. Boattini. 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. 0.68-m Schmidt + CCD.
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + 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.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 BW2 Earth MOID = 0.0172 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 225.35988 (2000.0) P Q
n 0.96259190 Peri. 184.66935 -0.75395025 +0.65684854
a 1.0158773 Node 36.39758 -0.60215167 -0.68463880
e 0.1378411 Incl. 1.00825 -0.26262597 -0.31594257
P 1.02 H 25.0 G 0.15 U 8
Residuals in seconds of arc
090120 703 0.1+ 0.1- 090120 H01 0.1+ 0.1- 090120 H01 0.0 0.2-
090120 703 0.6+ 0.8+ 090120 854 0.4- 0.1+ 090120 H01 0.2- 0.3-
090120 703 0.7- 0.5- 090120 H01 0.0 0.0 090120 J95 0.1+ 0.1+
090120 703 0.1- 0.3- 090120 854 0.2- 0.1+ 090120 J95 0.1- 0.0
090120 H01 0.3+ 0.1- 090120 854 0.7+ 0.4+ 090120 J95 0.0 0.1-
Ephemeris:
2009 BW2 a,e,i = 1.02, 0.14, 1 q = 0.8758
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 01 19 08 18.35 +43 08.3 0.0461 1.027 157.0 22.0 19.4
2009 01 21 08 08.96 +46 03.8 0.0419 1.022 153.9 25.1 19.3
2009 01 23 07 56.09 +49 27.8 0.0379 1.017 149.6 29.3 19.2
2009 01 25 07 37.84 +53 23.3 0.0342 1.012 144.2 34.7 19.1
2009 01 27 07 10.71 +57 49.4 0.0308 1.008 137.5 41.3 19.1
2009 01 29 06 28.13 +62 31.4 0.0279 1.003 129.5 49.3 19.1
2009 01 31 05 19.07 +66 39.4 0.0254 0.998 119.9 58.8 19.1
2009 02 02 03 36.81 +68 17.3 0.0237 0.993 108.8 69.9 19.3
2009 02 04 01 47.81 +65 20.6 0.0226 0.989 96.5 82.2 19.6
2009 02 06 00 28.35 +58 22.1 0.0224 0.984 83.6 95.1 20.1
2009 02 08 23 38.80 +49 35.9 0.0231 0.979 70.9 107.8 20.8
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-B31
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