(140) Siwa
Orbital Elements
The following orbital elements are taken from MPO133258(140) Siwa Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 Goffin M 308.85836 (2000.0) P Q n 0.21832930 Peri. 197.32137 +0.56763324 +0.82156797 a 2.7314591 Node 107.29459 -0.74860809 +0.54190899 e 0.2168825 Incl. 3.18753 -0.34260537 +0.17708957 P 4.51 H 8.34 G 0.15 U 0 From 1471 observations at 67 oppositions, 1874-2008, mean residual 0".74.An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.Personalized ephemerides for this object (and others) can be generated using the MPES.
Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2009 06 10 20 58.62 -17 23.0 1.382 2.152 127.0 22.1 11.8 2009 06 15 21 00.15 -17 26.7 1.337 2.149 131.5 20.8 11.7 2009 06 20 21 00.92 -17 34.1 1.295 2.146 136.1 19.2 11.5 2009 06 25 21 00.92 -17 45.4 1.257 2.144 140.9 17.4 11.4 2009 06 30 21 00.15 -18 00.3 1.223 2.143 145.9 15.4 11.3 2009 07 05 20 58.64 -18 18.6 1.194 2.141 151.1 13.3 11.2 2009 07 10 20 56.45 -18 39.8 1.169 2.140 156.5 10.9 11.0 2009 07 15 20 53.63 -19 03.5 1.150 2.140 161.9 8.5 10.9 2009 07 20 20 50.29 -19 28.9 1.136 2.139 167.5 5.9 10.7 2009 07 25 20 46.57 -19 55.2 1.127 2.139 173.1 3.3 10.6 2009 07 30 20 42.63 -20 21.3 1.125 2.140 177.8 1.1 10.4 2009 08 04 20 38.65 -20 46.5 1.128 2.140 174.6 2.6 10.5 2009 08 09 20 34.79 -21 09.8 1.137 2.141 169.0 5.2 10.7 2009 08 14 20 31.22 -21 30.8 1.152 2.143 163.4 7.8 10.9 2009 08 19 20 28.10 -21 48.8 1.173 2.145 157.9 10.2 11.0 2009 08 24 20 25.55 -22 03.5 1.199 2.147 152.4 12.6 11.1 2009 08 29 20 23.70 -22 14.7 1.230 2.149 147.2 14.8 11.3 2009 09 03 20 22.60 -22 22.3 1.265 2.152 142.1 16.7 11.4 2009 09 08 20 22.29 -22 26.3 1.305 2.155 137.1 18.5 11.5 2009 09 13 20 22.77 -22 26.9 1.348 2.159 132.4 20.1 11.7 2009 09 18 20 24.05 -22 24.1 1.395 2.162 127.8 21.5 11.8
