(17) Thetis
Orbital Elements
The following orbital elements are taken from MPC 38747:(17) Thetis Epoch 2003 Dec. 27.0 TT = JDT 2453000.5 Williams M 322.30418 (2000.0) P Q n 0.25390758 Peri. 135.85754 -0.14546764 +0.98619269 a 2.4699355 Node 125.62232 -0.93255973 -0.10996236 e 0.1339733 Incl. 5.58707 -0.33041113 -0.12382349 P 3.88 H 7.76 G 0.15 U 0 From 869 observations at 73 oppositions, 1853-1999, mean residual 0".88.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.
Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2004 03 26 17 58.35 -17 28.3 1.807 2.154 96.0 27.4 11.9 2004 03 31 18 04.55 -17 21.8 1.749 2.151 99.4 27.3 11.9 2004 04 05 18 10.25 -17 14.6 1.691 2.149 103.0 27.0 11.8 2004 04 10 18 15.39 -17 07.0 1.634 2.147 106.6 26.6 11.7 2004 04 15 18 19.93 -16 59.1 1.579 2.145 110.4 26.0 11.6 2004 04 20 18 23.81 -16 51.4 1.525 2.144 114.3 25.3 11.5 2004 04 25 18 27.00 -16 44.1 1.473 2.143 118.4 24.4 11.4 2004 04 30 18 29.44 -16 37.8 1.423 2.141 122.6 23.3 11.3 2004 05 05 18 31.11 -16 32.6 1.376 2.140 127.0 22.1 11.2 2004 05 10 18 31.98 -16 29.0 1.332 2.140 131.5 20.7 11.1 2004 05 15 18 32.01 -16 27.1 1.291 2.139 136.3 19.1 10.9 2004 05 20 18 31.20 -16 27.4 1.254 2.139 141.2 17.2 10.8 2004 05 25 18 29.57 -16 29.9 1.221 2.139 146.3 15.2 10.7 2004 05 30 18 27.16 -16 34.8 1.192 2.139 151.6 13.0 10.6 2004 06 04 18 24.04 -16 42.2 1.169 2.140 156.9 10.7 10.4 2004 06 09 18 20.30 -16 52.0 1.151 2.140 162.4 8.3 10.3 2004 06 14 18 16.08 -17 04.0 1.138 2.141 167.6 5.8 10.2 2004 06 19 18 11.51 -17 18.1 1.131 2.142 172.3 3.7 10.0 2004 06 24 18 06.79 -17 34.0 1.130 2.143 174.0 2.8 10.0 2004 06 29 18 02.11 -17 51.4 1.135 2.145 171.0 4.2 10.1 2004 07 04 17 57.65 -18 10.0 1.145 2.146 166.1 6.5 10.2 2004 07 09 17 53.57 -18 29.6 1.162 2.148 160.8 9.0 10.4 2004 07 14 17 50.02 -18 49.7 1.184 2.150 155.4 11.4 10.5 2004 07 19 17 47.11 -19 10.3 1.211 2.153 150.1 13.6 10.6 2004 07 24 17 44.96 -19 31.2 1.243 2.155 144.9 15.7 10.8 2004 07 29 17 43.62 -19 52.1 1.280 2.158 139.9 17.7 10.9 2004 08 03 17 43.12 -20 12.8 1.321 2.161 135.0 19.4 11.0 2004 08 08 17 43.44 -20 33.2 1.365 2.164 130.3 20.9 11.1 2004 08 13 17 44.60 -20 53.0 1.412 2.167 125.8 22.3 11.3 2004 08 18 17 46.57 -21 12.3 1.463 2.171 121.5 23.4 11.4 2004 08 23 17 49.31 -21 30.7 1.515 2.174 117.3 24.4 11.5 2004 08 28 17 52.79 -21 48.1 1.570 2.178 113.3 25.2 11.6 2004 09 02 17 56.95 -22 04.2 1.627 2.182 109.5 25.8 11.7 2004 09 07 18 01.73 -22 19.0 1.686 2.186 105.7 26.3 11.8 2004 09 12 18 07.11 -22 32.2 1.746 2.191 102.1 26.7 11.9
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