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M.P.E.C. 2007-R50 Issued 2007 Sept. 11, 16:05 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
2007 RU9
Observations:
K07R09U* C2007 09 10.28596 23 09 39.60 -06 20 43.6 19.2 V ER050G96
K07R09U C2007 09 10.29302 23 09 38.77 -06 20 55.2 19.3 V ER050G96
K07R09U C2007 09 10.30009 23 09 37.90 -06 21 06.3 19.2 V ER050G96
K07R09U C2007 09 10.30714 23 09 37.08 -06 21 18.0 19.1 V ER050G96
K07R09U C2007 09 10.36153 23 09 30.52 -06 22 46.7 18.7 V ER050G96
K07R09U C2007 09 10.36573 23 09 30.02 -06 22 53.4 18.7 V ER050G96
K07R09U C2007 09 10.36994 23 09 29.52 -06 23 00.4 19.1 V ER050G96
K07R09U C2007 09 10.37413 23 09 29.01 -06 23 07.1 19.1 V ER050G96
K07R09U C2007 09 11.09882 23 08 06.50 -06 43 22.0 ER050J95
K07R09U C2007 09 11.10452 23 08 05.78 -06 43 31.8 ER050J95
K07R09U C2007 09 11.11026 23 08 05.07 -06 43 41.2 19.1 R ER050J95
K07R09U C2007 09 11.27465 23 07 46.81 -06 48 16.4 19.2 V ER050G96
K07R09U C2007 09 11.28155 23 07 45.94 -06 48 28.1 19.1 V ER050G96
K07R09U C2007 09 11.28841 23 07 45.08 -06 48 40.0 19.1 V ER050G96
K07R09U C2007 09 11.29536 23 07 44.18 -06 48 51.9 19.1 V ER050G96
K07R09U 5C2007 09 11.30359 23 07 43.29 -06 49 06.7 19.4 R ER050673
K07R09U 5C2007 09 11.31250 23 07 42.15 -06 49 22.6 ER050673
K07R09U 5C2007 09 11.31690 23 07 41.61 -06 49 30.2 ER050673
K07R09U 5C2007 09 11.32130 23 07 41.05 -06 49 37.3 ER050673
K07R09U C2007 09 11.40381 23 07 30.43 -06 51 57.8 19.2 R ER050651
K07R09U C2007 09 11.40514 23 07 30.30 -06 52 00.2 19.3 R ER050651
K07R09U C2007 09 11.40646 23 07 30.10 -06 52 02.8 19.3 R ER050651
Observer details:
651 Grasslands Observatory, Tucson. Observer J. E. McGaha. 0.62-m f/5.1
Newtonian reflector + CCD.
673 Table Mountain Observatory, Wrightwood. Observer J. Young. 0.61-m f/16
Cassegrain + CCD.
G96 Mt. Lemmon Survey. Observers R. A. Kowalski, E. C. Beshore. 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.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
2007 RU9 PHA, Earth MOID = 0.0006 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 347.65367 (2000.0) P Q
n 0.36066395 Peri. 285.55498 -0.00281544 -0.99965229
a 1.9546435 Node 164.53502 +0.95103137 -0.01078015
e 0.6391116 Incl. 5.64261 +0.30908156 +0.02406420
P 2.73 H 20.7 G 0.15 U 9
Residuals in seconds of arc
070910 G96 0.2- 0.0 070911 J95 0.6+ 0.3- 070911 673 0.6- 0.2-
070910 G96 0.0 0.1- 070911 J95 0.2+ 0.4- 070911 673 0.4- 0.2-
070910 G96 0.3- 0.3+ 070911 J95 0.0 0.1- 070911 673 0.4- 0.3+
070910 G96 0.2+ 0.1+ 070911 G96 0.0 0.3+ 070911 651 0.4- 0.5+
070910 G96 0.2- 0.1+ 070911 G96 0.0 0.5+ 070911 651 0.1+ 0.4+
070910 G96 0.1- 0.2+ 070911 G96 0.1+ 0.4+ 070911 651 0.4- 0.0
070910 G96 0.1- 0.1+ 070911 G96 0.1- 0.4+
070910 G96 0.2- 0.2+ 070911 673 0.5- 0.4+
Ephemeris:
2007 RU9 a,e,i = 1.95, 0.64, 6 q = 0.7054
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 09 07 23 15.21 -04 58.6 0.380 1.388 176.1 2.8 19.6
2007 09 17 22 54.66 -09 58.1 0.288 1.288 167.2 10.0 19.2
2007 09 27 22 19.46 -18 08.6 0.214 1.186 146.0 28.2 19.0
2007 10 07 21 15.60 -30 39.6 0.161 1.084 117.8 54.7 18.9
2007 10 17 19 08.03 -44 32.2 0.136 0.984 80.6 91.6 19.6
Timothy B. Spahr (C) Copyright 2007 MPC M.P.E.C. 2007-R50
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