MPEC 2007-R90 : 2007 RA20
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M.P.E.C. 2007-R90 Issued 2007 Sept. 15, 14:33 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 RA20
Observations:
K07R20A* C2007 09 14.60499 02 00 05.94 -26 04 30.4 19.2 V ER090E12
K07R20A C2007 09 14.62199 02 00 09.68 -26 05 25.1 19.0 V ER090E12
K07R20A C2007 09 14.63940 02 00 13.57 -26 06 22.0 19.1 V ER090E12
K07R20A C2007 09 14.65837 02 00 17.82 -26 07 22.3 19.2 V ER090E12
K07R20A C2007 09 14.76287 02 00 41.22 -26 12 56.6 19.2 V ER090E12
K07R20A C2007 09 14.76470 02 00 41.61 -26 13 02.8 18.9 V ER090E12
K07R20A C2007 09 14.76649 02 00 42.08 -26 13 08.2 19.0 V ER090E12
K07R20A C2007 09 14.76832 02 00 42.44 -26 13 15.3 19.5 V ER090E12
K07R20A C2007 09 15.28290 02 02 45.18 -26 41 11.8 18.8 R ER090I77
K07R20A C2007 09 15.28496 02 02 45.70 -26 41 18.5 18.6 R ER090I77
K07R20A C2007 09 15.28702 02 02 46.15 -26 41 25.1 18.7 R ER090I77
Observer details:
E12 Siding Spring Survey. Observer G. J. Garradd. 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. 0.5-m Uppsala Schmidt + CCD.
I77 CEAMIG-REA Observatory, Belo Horizonte. Observers C. Jacques, E. Pimentel.
Measurer C. Jacques. 0.30-m f/3.0 Schmidt-Cassegrain + CCD.
Orbital elements:
2007 RA20 Earth MOID = 0.0548 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5 MPC
M 351.83377 (2000.0) P Q
n 0.30376356 Peri. 319.51015 +0.09202643 -0.98360545
a 2.1916890 Node 124.65823 +0.95535454 +0.04330071
e 0.6366899 Incl. 10.86760 +0.28076475 +0.17505819
P 3.24 H 19.7 G 0.15 U 9
Residuals in seconds of arc
070914 E12 0.6+ 0.1+ 070914 E12 0.0 0.4+ 070915 I77 0.3- 0.0
070914 E12 0.3- 0.2+ 070914 E12 0.3- 0.1+ 070915 I77 0.3+ 0.0
070914 E12 0.3- 0.5- 070914 E12 0.6+ 0.4+ 070915 I77 0.0 0.1+
070914 E12 0.1- 0.2+ 070914 E12 0.1- 0.9-
Ephemeris:
2007 RA20 a,e,i = 2.19, 0.64, 11 q = 0.7963
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2007 09 07 01 35.13 -20 13.9 0.396 1.336 140.1 29.0 19.6
2007 09 17 02 10.00 -28 17.9 0.304 1.240 135.3 34.8 19.0
2007 09 27 03 11.23 -39 33.9 0.235 1.145 122.2 47.8 18.6
2007 10 07 05 14.36 -50 37.6 0.197 1.053 100.5 68.9 18.7
2007 10 17 08 09.68 -49 35.9 0.197 0.968 76.0 92.5 19.4
2007 10 27 10 04.76 -37 57.0 0.235 0.894 58.5 108.5 20.4
2007 11 06 11 07.00 -26 56.8 0.297 0.837 51.0 112.9 21.0
2007 11 16 11 49.09 -19 13.2 0.376 0.803 50.4 108.5 21.2
2007 11 26 12 23.80 -14 15.0 0.464 0.798 52.8 99.6 21.1
2007 12 06 12 55.25 -11 12.9 0.552 0.821 56.4 89.5 21.1
2007 12 16 13 24.14 -09 22.1 0.633 0.870 60.6 80.1 21.2
2007 12 26 13 50.25 -08 08.7 0.701 0.939 65.2 72.0 21.3
2008 01 05 14 13.21 -07 09.4 0.755 1.020 70.5 65.3 21.4
2008 01 15 14 32.60 -06 08.8 0.794 1.110 76.5 59.5 21.6
2008 01 25 14 48.08 -04 57.8 0.818 1.204 83.3 54.3 21.6
2008 02 04 14 59.28 -03 30.9 0.830 1.300 91.0 49.3 21.7
2008 02 14 15 05.74 -01 44.9 0.833 1.395 99.7 44.2 21.7
2008 02 24 15 07.04 +00 19.6 0.832 1.490 109.5 38.8 21.7
2008 03 05 15 02.93 +02 39.3 0.832 1.583 120.3 32.8 21.7
2008 03 15 14 53.47 +05 05.4 0.839 1.674 131.8 26.3 21.6
2008 03 25 14 39.56 +07 23.5 0.860 1.763 143.2 19.8 21.6
2008 04 04 14 22.83 +09 17.6 0.901 1.849 153.1 14.2 21.6
2008 04 14 14 05.52 +10 34.6 0.966 1.933 158.1 11.1 21.7
2008 04 24 13 49.82 +11 09.3 1.055 2.014 155.6 11.9 22.1
Timothy B. Spahr (C) Copyright 2007 MPC M.P.E.C. 2007-R90
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