(24) Themis
Orbital Elements
The following orbital elements are taken from MPC 22472:(24) Themis Epoch 2002 Nov. 22.0 TT = JDT 2452600.5 (M-c) Bowell M 7.89196 (2000.0) P Q n 0.17795640 Peri. 107.98143 -0.80852118 -0.58841549 a 3.1303554 Node 35.97505 +0.53476519 -0.74019974 e 0.1335695 Incl. 0.76004 +0.24560069 -0.32537910 P 5.54 H 7.08 G 0.19 From 555 observations at 44 oppositions, 1908-1993, mean residual 0".66.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 2003 01 21 12 29.08 -02 22.8 2.204 2.741 112.9 19.3 11.9 2003 01 26 12 30.48 -02 31.4 2.146 2.744 117.6 18.5 11.8 2003 01 31 12 31.31 -02 36.3 2.089 2.747 122.4 17.6 11.8 2003 02 05 12 31.54 -02 37.5 2.036 2.750 127.4 16.5 11.7 2003 02 10 12 31.17 -02 34.9 1.987 2.753 132.6 15.3 11.6 2003 02 15 12 30.20 -02 28.5 1.942 2.756 137.9 13.9 11.5 2003 02 20 12 28.65 -02 18.6 1.902 2.759 143.4 12.3 11.4 2003 02 25 12 26.55 -02 05.2 1.867 2.763 149.0 10.6 11.3 2003 03 02 12 23.94 -01 48.7 1.838 2.766 154.7 8.8 11.2 2003 03 07 12 20.90 -01 29.6 1.815 2.770 160.6 6.8 11.1 2003 03 12 12 17.51 -01 08.3 1.798 2.774 166.5 4.8 11.0 2003 03 17 12 13.87 -00 45.7 1.788 2.778 172.4 2.7 10.8 2003 03 22 12 10.10 -00 22.3 1.786 2.782 178.3 0.6 10.7 2003 03 27 12 06.30 +00 01.1 1.790 2.786 175.5 1.6 10.8 2003 04 01 12 02.59 +00 23.8 1.801 2.790 169.6 3.7 10.9 2003 04 06 11 59.08 +00 45.0 1.819 2.794 163.7 5.8 11.0 2003 04 11 11 55.88 +01 04.1 1.844 2.798 158.0 7.7 11.2 2003 04 16 11 53.07 +01 20.5 1.875 2.803 152.3 9.6 11.3 2003 04 21 11 50.71 +01 34.0 1.912 2.807 146.8 11.3 11.4 2003 04 26 11 48.85 +01 44.2 1.955 2.812 141.4 12.9 11.5 2003 05 01 11 47.53 +01 50.8 2.002 2.817 136.2 14.3 11.6 2003 05 06 11 46.77 +01 53.9 2.053 2.822 131.2 15.6 11.7 2003 05 11 11 46.56 +01 53.4 2.109 2.826 126.3 16.7 11.8
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