(14) Irene

Orbital Elements

The following orbital elements are taken from MPO 595
   (14) Irene
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5                  Goffin
M  41.91026              (2000.0)            P               Q
n   0.23702504     Peri.   96.51674     -0.98610785     +0.05131572
a   2.5858692      Node    86.50665     -0.11164291     -0.90897968
e   0.1675871      Incl.    9.10679     +0.12299256     -0.41366972
P   4.16           H    6.30          G   0.15           U   0
From 1765 observations at 84 oppositions, 1851-2000, mean residual 0".54.
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 03 12    17 19.47   -17 36.7    2.025    2.273    91.2    25.9    10.8
2001 03 17    17 25.08   -17 46.1    1.971    2.280    94.8    25.8    10.7
2001 03 22    17 30.16   -17 54.7    1.917    2.288    98.5    25.5    10.7
2001 03 27    17 34.66   -18 02.9    1.864    2.295   102.4    25.1    10.6
2001 04 01    17 38.54   -18 10.9    1.812    2.303   106.4    24.6    10.5
2001 04 06    17 41.76   -18 19.0    1.761    2.310   110.5    23.9    10.5
2001 04 11    17 44.29   -18 27.4    1.712    2.318   114.8    23.1    10.4
2001 04 16    17 46.07   -18 36.3    1.664    2.326   119.3    22.1    10.3
2001 04 21    17 47.07   -18 46.0    1.619    2.334   123.9    20.9    10.2
2001 04 26    17 47.27   -18 56.7    1.577    2.342   128.7    19.6    10.1
2001 05 01    17 46.65   -19 08.3    1.539    2.350   133.7    18.1    10.0
2001 05 06    17 45.22   -19 21.0    1.504    2.359   138.9    16.3     9.9
2001 05 11    17 43.01   -19 34.8    1.473    2.367   144.2    14.5     9.8
2001 05 16    17 40.04   -19 49.6    1.447    2.376   149.7    12.4     9.7
2001 05 21    17 36.38   -20 05.2    1.427    2.384   155.4    10.2     9.6
2001 05 26    17 32.14   -20 21.4    1.412    2.393   161.1     7.9     9.5
2001 05 31    17 27.43   -20 38.0    1.403    2.401   167.0     5.5     9.4
2001 06 05    17 22.42   -20 54.7    1.400    2.410   172.8     3.0     9.2
2001 06 10    17 17.26   -21 11.4    1.404    2.419   177.9     0.9     9.1
2001 06 15    17 12.10   -21 27.8    1.415    2.428   174.7     2.2     9.2
2001 06 20    17 07.12   -21 43.8    1.432    2.437   168.9     4.6     9.4
2001 06 25    17 02.47   -21 59.5    1.455    2.446   163.2     6.9     9.6
2001 06 30    16 58.29   -22 14.8    1.485    2.455   157.5     9.1     9.7
2001 07 05    16 54.69   -22 29.9    1.520    2.464   151.9    11.2     9.9
2001 07 10    16 51.75   -22 44.7    1.561    2.473   146.5    13.1    10.0
2001 07 15    16 49.52   -22 59.5    1.606    2.482   141.2    14.9    10.1
2001 07 20    16 48.03   -23 14.3    1.657    2.491   136.2    16.4    10.3
2001 07 25    16 47.30   -23 29.1    1.711    2.500   131.2    17.8    10.4
2001 07 30    16 47.32   -23 44.1    1.769    2.509   126.5    19.0    10.5
2001 08 04    16 48.08   -23 59.1    1.830    2.518   121.9    20.0    10.6
2001 08 09    16 49.55   -24 14.2    1.894    2.527   117.5    20.8    10.7
2001 08 14    16 51.67   -24 29.4    1.960    2.536   113.2    21.5    10.8
2001 08 19    16 54.44   -24 44.4    2.029    2.546   109.1    22.1    10.9
2001 08 24    16 57.80   -24 59.3    2.099    2.555   105.0    22.5    11.0
2001 08 29    17 01.72   -25 13.9    2.170    2.564   101.1    22.7    11.1
2001 09 03    17 06.15   -25 28.0    2.242    2.573    97.3    22.9    11.2
2001 09 08    17 11.06   -25 41.6    2.315    2.582    93.6    22.9    11.3

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