(24) Themis

Orbital Elements

The following orbital elements are taken from MPC 22472:
   (24) Themis
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5   (M-c)          Bowell
M 260.30836              (2000.0)            P               Q
n   0.17820300     Peri.  108.81385     -0.81800213     -0.57516198
a   3.1274668      Node    36.07634     +0.52262061     -0.74882185
e   0.1342460      Incl.    0.76131     +0.24029196     -0.32932435
P   5.53           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
 
2001 10 28    05 26.27   +23 45.3    2.219    2.980   132.3    14.3    11.9
2001 11 02    05 24.97   +23 45.9    2.165    2.974   137.6    13.0    11.8
2001 11 07    05 23.03   +23 45.8    2.115    2.968   143.1    11.6    11.7
2001 11 12    05 20.47   +23 45.1    2.071    2.961   148.7    10.0    11.6
2001 11 17    05 17.34   +23 43.6    2.032    2.955   154.4     8.3    11.5
2001 11 22    05 13.71   +23 41.3    2.000    2.949   160.3     6.5    11.4
2001 11 27    05 09.67   +23 38.0    1.975    2.943   166.3     4.6    11.3
2001 12 02    05 05.33   +23 33.9    1.956    2.936   172.3     2.6    11.1
2001 12 07    05 00.80   +23 28.8    1.945    2.930   178.3     0.6    11.0
2001 12 12    04 56.22   +23 23.1    1.942    2.924   175.3     1.6    11.0
2001 12 17    04 51.72   +23 16.7    1.945    2.918   169.2     3.6    11.2
2001 12 22    04 47.44   +23 10.1    1.956    2.912   163.2     5.6    11.3
2001 12 27    04 43.50   +23 03.5    1.975    2.906   157.2     7.5    11.4
2002 01 01    04 40.00   +22 57.2    1.999    2.900   151.3     9.4    11.5
2002 01 06    04 37.03   +22 51.5    2.030    2.894   145.5    11.1    11.6

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