MPEC 2009-B74 : 2009 BC58
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M.P.E.C. 2009-B74 Issued 2009 Jan. 30, 22:28 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 BC58
Observations:
K09B58C* C2009 01 25.42020 10 46 56.38 +08 19 42.3 20.9 V EB074691
K09B58C C2009 01 25.43280 10 46 55.57 +08 19 45.9 20.9 V EB074691
K09B58C C2009 01 25.44539 10 46 54.76 +08 19 49.9 20.6 V EB074691
K09B58C C2009 01 25.48585 10 46 52.15 +08 20 01.5 21.2 V EB074291
K09B58C C2009 01 25.48958 10 46 51.89 +08 20 02.4 21.1 V EB074291
K09B58C C2009 01 25.49333 10 46 51.66 +08 20 03.8 21.0 V EB074291
K09B58C C2009 01 26.28385 10 46 02.89 +08 24 02.3 EB074291
K09B58C HC2009 01 26.28767 10 46 02.58 +08 24 02.7 EB074291
K09B58C C2009 01 26.29562 10 46 02.09 +08 24 05.5 EB074291
K09B58C C2009 01 28.28480 10 43 52.48 +08 34 34.2 EB074291
K09B58C C2009 01 28.28879 10 43 52.22 +08 34 34.9 EB074291
K09B58C C2009 01 28.29256 10 43 51.95 +08 34 36.6 EB074291
K09B58C HC2009 01 29.28528 10 42 44.65 +08 40 03.1 EB074291
K09B58C C2009 01 29.28903 10 42 44.31 +08 40 05.1 EB074291
K09B58C C2009 01 29.29282 10 42 44.02 +08 40 06.8 EB074291
K09B58C C2009 01 30.04853 10 41 51.45 +08 44 20.5 20.5 C EB074493
K09B58C C2009 01 30.05042 10 41 51.33 +08 44 20.9 20.5 C EB074493
K09B58C C2009 01 30.05231 10 41 51.18 +08 44 22.0 20.7 C EB074493
K09B58C C2009 01 30.23311 10 41 38.80 +08 45 24.2 21.7 V EB074291
K09B58C C2009 01 30.23879 10 41 38.36 +08 45 26.4 21.3 V EB074291
K09B58C C2009 01 30.24263 10 41 38.08 +08 45 27.8 21.2 V EB074291
K09B58C C2009 01 30.35029 10 41 30.26 +08 46 04.3 21.2 V EB074G96
K09B58C C2009 01 30.36282 10 41 29.32 +08 46 08.8 20.9 V EB074G96
K09B58C C2009 01 30.37515 10 41 28.42 +08 46 13.1 20.7 V EB074G96
K09B58C C2009 01 30.38681 10 41 27.56 +08 46 17.1 20.9 V EB074G96
Observer details:
291 LPL/Spacewatch II. Observers T. H. Bressi, R. S. McMillan. 1.8-m f/2.7
reflector + CCD.
493 Calar Alto. Observer F. Hormuth. 1.23-m reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer T. H. Bressi. 0.9-m f/3
reflector + CCD.
G96 Mt. Lemmon Survey. Observer A. D. Grauer. 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 BC58 Earth MOID = 0.1881 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 MPC
M 36.09145 (2000.0) P Q
n 0.31392530 Peri. 65.04990 +0.80022114 -0.59946340
a 2.1441336 Node 331.77232 +0.53642365 +0.72818367
e 0.4503477 Incl. 2.06250 +0.26813392 +0.33225317
P 3.14 H 18.6 G 0.15 U 8
Residuals in seconds of arc
090125 691 0.0 0.1+ 090128 291 0.2- 0.6+ 090130 291 0.3+ 0.1-
090125 691 0.0 0.1- 090128 291 0.1+ 0.0 090130 291 0.2- 0.1+
090125 691 0.1+ 0.2+ 090128 291 0.1- 0.4+ 090130 291 0.3- 0.2+
090125 291 0.0 0.1- 090129 291 1.0+ 0.6- 090130 G96 0.1+ 0.6-
090125 291 0.3- 0.3- 090129 291 0.1- 0.1+ 090130 G96 0.2- 0.4-
090125 291 0.1- 0.0 090129 291 0.4- 0.5+ 090130 G96 0.2- 0.3-
090126 291 0.5+ 0.4+ 090130 493 0.0 0.5- 090130 G96 0.2- 0.4-
090126 291 0.4- 0.4- 090130 493 0.2+ 0.8-
090126 291 0.1+ 0.1- 090130 493 0.1+ 0.3-
Ephemeris:
2009 BC58 a,e,i = 2.14, 0.45, 2 q = 1.1785
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 01 29 10 43.06 +08 38.5 1.067 1.983 150.1 14.3 21.0
2009 02 08 10 30.53 +09 39.5 1.073 2.038 163.5 7.9 20.9
2009 02 18 10 16.85 +10 44.9 1.105 2.093 177.1 1.4 20.6
2009 02 28 10 03.89 +11 44.6 1.165 2.147 169.5 4.8 21.0
2009 03 10 09 53.26 +12 30.9 1.251 2.199 156.7 10.3 21.5
2009 03 20 09 45.87 +13 00.7 1.361 2.250 144.9 14.7 21.9
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-B74
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