MPEC 2009-R62 : 2009 RB4
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M.P.E.C. 2009-R62 Issued 2009 Sept. 15, 11:32 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 RB4
Observations:
K09R04B* C2009 09 14.32233 01 27 51.53 +08 16 39.5 19.4 ER062704
K09R04B C2009 09 14.33402 01 27 50.79 +08 16 27.6 19.6 ER062704
K09R04B C2009 09 14.34570 01 27 50.04 +08 16 15.7 19.7 ER062704
K09R04B C2009 09 14.35740 01 27 49.31 +08 16 04.2 19.9 ER062704
K09R04B C2009 09 14.36912 01 27 48.67 +08 15 51.2 20.3 ER062704
K09R04B C2009 09 15.02153 01 27 10.00 +08 04 27.0 ER062J95
K09R04B C2009 09 15.02457 01 27 09.84 +08 04 23.6 ER062J95
K09R04B C2009 09 15.02592 01 27 09.67 +08 04 22.8 19.4 V ER062A17
K09R04B C2009 09 15.02763 01 27 09.66 +08 04 20.5 19.7 R ER062J95
K09R04B C2009 09 15.03378 01 27 09.18 +08 04 14.6 19.4 V ER062A17
K09R04B C2009 09 15.04165 01 27 08.67 +08 04 06.5 19.2 V ER062A17
K09R04B C2009 09 15.17201 01 27 01.27 +08 01 51.2 19.1 V ER062H55
K09R04B C2009 09 15.18097 01 27 00.72 +08 01 42.0 19.1 V ER062H55
K09R04B C2009 09 15.19046 01 27 00.14 +08 01 32.0 19.3 V ER062H55
K09R04B C2009 09 15.33859 01 26 50.82 +07 58 57.5 19.0 V ER062291
K09R04B C2009 09 15.34233 01 26 50.62 +07 58 54.0 18.9 V ER062291
K09R04B C2009 09 15.34615 01 26 50.44 +07 58 51.0 18.9 V ER062291
K09R04B C2009 09 15.35737 01 26 49.63 +07 58 38.0 19.3 R ER062854
K09R04B C2009 09 15.36312 01 26 49.27 +07 58 33.0 19.5 R ER062854
K09R04B C2009 09 15.37463 01 26 48.53 +07 58 19.4 19.3 R ER062854
Observer details:
291 LPL/Spacewatch II. Observer T. H. Bressi. 1.8-m f/2.7 reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico. Observers M. Bezpalko, D. Torres,
R. Kracke, G. Spitz, M. Blythe. Measurer J. Stuart. 1.0-m f/2.15
reflector + CCD.
854 Sabino Canyon Observatory, Tucson. Observer J. E. McGaha. 0.36-m f/10.0
Schmidt-Cassegrain + CCD.
A17 Guidestar Observatory, Weinheim. Observers M. Emmerich, S. Melchert.
0.36-m f/6 Schmidt-Cassegrain + CCD.
H55 Astronomical Research Observatory, Charleston. Observer R. Holmes.
Measurers S. Foglia, K. Dankov.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2009 RB4 Earth MOID = 0.2128 AU
Epoch 2009 June 18.0 TT = JDT 2455000.5 MPC
M 18.17822 (2000.0) P Q
n 0.41150758 Peri. 86.55595 -0.02698235 +0.99962218
a 1.7901283 Node 181.92146 -0.96796074 -0.02743601
e 0.3598006 Incl. 8.99032 -0.24964765 -0.00166305
P 2.40 H 18.2 G 0.15 U 9
Residuals in seconds of arc
090914 704 0.3- 0.3- 090915 A17 0.3+ 0.0 090915 291 0.9- 0.5-
090914 704 0.4- 0.1- 090915 J95 0.4+ 0.2- 090915 291 0.2- 0.1-
090914 704 0.6- 0.2+ 090915 A17 0.4+ 0.0 090915 291 0.8+ 0.9+
090914 704 0.4- 0.8+ 090915 A17 0.3+ 0.1+ 090915 854 0.2- 0.3-
090914 704 1.1+ 0.0 090915 H55 0.5- 0.2+ 090915 854 0.1+ 0.8+
090915 J95 0.3- 0.0 090915 H55 0.2- 0.4+ 090915 854 0.3+ 0.7-
090915 J95 0.2+ 0.3- 090915 H55 0.1+ 0.3+
Ephemeris:
2009 RB4 a,e,i = 1.79, 0.36, 9 q = 1.1460
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2009 09 16 01 26.17 +07 47.4 0.673 1.625 150.3 17.9 19.3
2009 09 26 01 14.50 +04 45.9 0.688 1.674 163.7 9.7 19.1
2009 10 06 01 01.78 +01 50.0 0.724 1.722 175.1 2.8 19.0
2009 10 16 00 50.18 -00 39.1 0.783 1.769 167.4 7.1 19.4
2009 10 26 00 41.40 -02 27.9 0.865 1.816 155.2 13.3 20.0
2009 11 05 00 36.27 -03 33.4 0.966 1.861 143.8 18.4 20.4
2009 11 15 00 34.84 -03 59.8 1.084 1.904 133.4 22.2 20.8
2009 11 25 00 36.79 -03 54.0 1.215 1.946 123.9 24.9 21.2
2009 12 05 00 41.62 -03 23.1 1.356 1.987 115.2 26.7 21.6
2009 12 15 00 48.79 -02 33.4 1.505 2.025 107.1 27.7 21.9
Timothy B. Spahr (C) Copyright 2009 MPC M.P.E.C. 2009-R62
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