MPEC 2004-E12 : 1990 SA
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M.P.E.C. 2004-E12 Issued 2004 Mar. 2, 15:55 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.
Supported in part by the Steven and Michele Kirsch Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1990 SA
Additional Observations:
J90S00A C2004 03 01.28468 10 36 04.36 -06 23 29.1 19.3 V EE012703
J90S00A C2004 03 01.29387 10 36 03.65 -06 23 20.4 19.1 V EE012703
J90S00A C2004 03 01.30307 10 36 02.90 -06 23 07.1 20.0 V EE012703
J90S00A C2004 03 01.31333 10 36 02.18 -06 22 52.5 20.4 V EE012703
J90S00A C2004 03 01.36241 10 35 58.40 -06 21 43.8 19.4 V EE012703
J90S00A C2004 03 01.37142 10 35 57.71 -06 21 30.4 19.4 V EE012703
J90S00A C2004 03 01.38044 10 35 57.06 -06 21 17.6 19.1 V EE012703
J90S00A C2004 03 01.38950 10 35 56.30 -06 21 05.0 19.5 V EE012703
J90S00A C2004 03 02.03944 10 35 07.97 -06 05 53.2 EE012J95
J90S00A C2004 03 02.05850 10 35 06.46 -06 05 26.3 19.8 R EE012J95
J90S00A C2004 03 02.25689 10 34 51.87 -06 00 42.5 19.3 R EE012448
J90S00A C2004 03 02.26049 10 34 51.60 -06 00 37.4 19.7 R EE012448
J90S00A C2004 03 02.27110 10 34 50.84 -06 00 23.1 19.8 R EE012448
Observer details:
448 Desert Moon Observatory. Observer B. L. Stevens. 0.3-m
Schmidt-Cassegrain + CCD.
703 Catalina Sky Survey. Observers S. Larson, E. Beshore, E. Christensen,
R. Hill, S. Kolar, D. McLean. 0.68-m f/1.8 Schmidt + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.30-m f/6.3 Schmidt-Cassegrain
+ CCD.
Orbital elements:
1990 SA
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 327.41654 (2000.0) P Q
n 0.34492592 Peri. 115.07878 +0.32443089 +0.94227733
a 2.0136570 Node 172.28988 -0.92243271 +0.29577977
e 0.4421718 Incl. 38.11680 +0.20943376 -0.15693237
P 2.86 H 17.0 G 0.15 U 5
Residuals in seconds of arc
900914 657 (3.2+ 1.1-) 900919 474 (0.0 15.6-) 900928 696 0.2+ 0.0 Y
900914 657 (3.4- 5.8-) 900919 474 1.0- 0.2- 040301 703 (0.1+ 3.7+)
900916 413 0.6+ 1.5+ 900920 657 0.5+ 0.7- 040301 703 0.0 0.5-
900917 413 0.5- 1.2- 900920 657 (2.1- 0.5-) 040301 703 0.6- 0.0
900917 413 0.8+ 0.7+ 900921 657 (1.9- 2.2-) 040301 703 0.4+ 0.2+
900917 413 1.0+ 0.2- 900921 657 1.5- 1.8- 040301 703 0.3+ 0.2+
900918 413 0.5+ 0.4- 900921 413 (0.2+ 2.1+) 040301 703 0.3+ 1.0+
900918 413 (0.5+ 3.5+) 900921 413 0.3+ 0.2- 040301 703 1.0+ 1.1+
900918 474 0.0 0.1+ 900922 801 1.0- 0.4+ 040301 703 0.0 1.0+
900918 474 1.0- 1.1+ 900922 801 0.2- 0.8+ 040302 J95 0.2- 0.8-
900919 801 0.5- 0.3+ 900922 413 0.6+ 0.6+ 040302 J95 1.0- 0.9-
900919 801 0.5- 0.7+ 900922 413 (0.4+ 2.7+) 040302 448 0.5- 0.2-
900919 675 0.0 1.1- 900923 568 (3.1+ 0.8+) 040302 448 0.4- 0.2-
900919 675 0.1- 1.0- 900924 675 0.8+ 0.7+ 040302 448 0.5+ 0.9-
900919 413 0.4+ 0.2- 900924 675 0.6+ 0.3+
900919 413 0.6+ 0.2+ 900924 568 0.8- 0.3-
Ephemeris:
1990 SA a,e,i = 2.01, 0.44, 38 q = 1.1233
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 02 25 10 42.49 -08 20.4 1.287 2.249 162.0 7.8 19.9
2004 03 06 10 30.18 -04 29.4 1.225 2.202 166.3 6.1 19.6
2004 03 16 10 17.92 -00 06.5 1.197 2.153 158.4 9.8 19.7
2004 03 26 10 07.28 +04 24.6 1.200 2.103 146.0 15.4 19.9
2004 04 05 09 59.57 +08 40.0 1.231 2.051 133.4 20.8 20.0
2004 04 15 09 55.50 +12 23.9 1.282 1.998 121.4 25.4 20.2
2004 04 25 09 55.32 +15 29.6 1.346 1.943 110.5 29.0 20.4
2004 05 05 09 58.90 +17 57.0 1.417 1.887 100.8 31.7 20.5
2004 05 15 10 05.88 +19 49.5 1.490 1.830 92.0 33.5 20.6
2004 05 25 10 15.89 +21 11.3 1.559 1.771 84.2 34.7 20.6
2004 06 04 10 28.57 +22 06.6 1.621 1.712 77.3 35.3 20.7
2004 06 14 10 43.59 +22 38.9 1.674 1.653 71.1 35.5 20.7
2004 06 24 11 00.72 +22 50.4 1.717 1.593 65.6 35.5 20.6
2004 07 04 11 19.78 +22 43.3 1.747 1.534 60.8 35.4 20.6
Timothy B. Spahr (C) Copyright 2004 MPC M.P.E.C. 2004-E12
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