MPEC 2003-P08 : 2000 SR331
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M.P.E.C. 2003-P08 Issued 2003 Aug. 4, 00:39 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://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2000 SR331
Revision to MPEC 2000-U04
Observations:
K00SX1R C2001 11 15.19997 04 04 31.94 +17 28 53.5 23.5 R 309
K00SX1R C2001 11 15.23303 04 04 31.74 +17 28 52.9 23.5 R 309
K00SX1R C2002 11 29.26585 04 13 38.93 +17 45 31.7 568
K00SX1R C2002 11 30.26330 04 13 32.52 +17 45 14.3 23.4 R 568
K00SX1R C2002 11 30.29912 04 13 32.29 +17 45 13.8 23.5 R 568
K00SX1R C2002 11 30.33654 04 13 32.05 +17 45 13.1 568
Observer details:
309 Cerro Paranal. Observer J.-M. Petit. 8.2-m UT3 Telescope + CCD.
568 Mauna Kea. Observers J.-M. Petit, J. Kavelaars, L. Allen. Measurer
J.-M. Petit. 3.5-m Canada-France-Hawaii telescope + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc and reference
011115 309 0.5- 0.3+ 021130 568 7.0- 1.6- MPO 12248
Orbital elements:
2000 SR331
Epoch 2003 June 10.0 TT = JDT 2452800.5 MPC
M 357.24578 (2000.0) P Q
n 0.00236019 Peri. 239.49578 +0.27439315 -0.96143526
a 55.8689898 Node 194.61408 +0.90574990 +0.26494325
e 0.4427155 Incl. 4.25624 +0.32299462 +0.07380595
P 418 H 8.9 G 0.15 U 4
Residuals in seconds of arc
000923 568 0.1+ 0.5+ 001128 675 0.2+ 0.3- 011115 309 0.1+ 0.3+
000923 568 0.2+ 0.5+ 001128 675 0.2- 0.1- 021129 568 0.1- 0.1-
000923 568 0.1+ 0.5+ 010123 675 0.1+ 0.1- 021130 568 0.0 0.1-
000924 568 0.3- 0.5- 010123 675 0.0 0.1+ 021130 568 0.0 0.0
000924 568 0.1- 0.5- 010223 309 0.0 0.1- 021130 568 0.1+ 0.0
000924 568 0.1- 0.4- 010224 309 0.1- 0.1-
001128 675 0.3+ 0.2+ 011115 309 0.1- 0.2+
Ephemeris:
2000 SR331 a,e,i = 55.87, 0.44, 4 q = 31.135
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2003 07 30 04 27.26 +18 23.7 31.738 31.219 58.4 1.6 24.1
2003 08 09 04 28.11 +18 24.5 31.587 31.218 67.8 1.7 24.1
2003 08 19 04 28.78 +18 24.7 31.424 31.216 77.2 1.8 24.1
2003 08 29 04 29.24 +18 24.5 31.256 31.215 86.7 1.9 24.1
2003 09 08 04 29.48 +18 23.7 31.086 31.213 96.3 1.8 24.1
2003 09 18 04 29.51 +18 22.5 30.919 31.212 106.1 1.8 24.0
2003 09 28 04 29.31 +18 20.8 30.760 31.210 115.9 1.7 24.0
2003 10 08 04 28.91 +18 18.7 30.614 31.209 125.8 1.5 24.0
2003 10 18 04 28.31 +18 16.4 30.485 31.207 135.8 1.3 24.0
2003 10 28 04 27.55 +18 13.7 30.378 31.206 145.9 1.0 23.9
2003 11 07 04 26.64 +18 10.9 30.296 31.205 156.0 0.7 23.9
2003 11 17 04 25.64 +18 08.1 30.242 31.203 166.1 0.4 23.9
2003 11 27 04 24.58 +18 05.2 30.218 31.202 175.3 0.1 23.8
2003 12 07 04 23.50 +18 02.6 30.225 31.201 171.9 0.3 23.8
2003 12 17 04 22.45 +18 00.2 30.262 31.199 161.9 0.6 23.9
2003 12 27 04 21.48 +17 58.1 30.329 31.198 151.7 0.9 23.9
2004 01 06 04 20.62 +17 56.6 30.423 31.197 141.3 1.1 24.0
2004 01 16 04 19.91 +17 55.5 30.541 31.195 131.0 1.4 24.0
2004 01 26 04 19.39 +17 55.0 30.680 31.194 120.7 1.6 24.0
2004 02 05 04 19.07 +17 55.1 30.834 31.193 110.5 1.7 24.0
2004 02 15 04 18.98 +17 55.8 30.998 31.192 100.4 1.8 24.0
2004 02 25 04 19.10 +17 57.0 31.168 31.190 90.4 1.8 24.1
2004 03 06 04 19.46 +17 58.9 31.339 31.189 80.4 1.8 24.1
2004 03 16 04 20.04 +18 01.2 31.504 31.188 70.6 1.7 24.1
2004 03 26 04 20.82 +18 03.9 31.660 31.187 60.9 1.6 24.1
2004 04 05 04 21.79 +18 07.0 31.802 31.186 51.3 1.4 24.1
2004 04 15 04 22.92 +18 10.3 31.925 31.184 41.8 1.2 24.1
2004 04 25 04 24.20 +18 13.8 32.028 31.183 32.4 1.0 24.1
This 2:5 Neptune librator remains more than 28 AU from Neptune over a
14 000-year period. The minimum distance from Uranus is of course 12 AU.
Brian G. Marsden (C) Copyright 2003 MPC M.P.E.C. 2003-P08
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