(116) Sirona

Orbital Elements

The following orbital elements are taken from MPO 595

  (116) Sirona
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5                  Goffin
M 251.17048              (2000.0)            P               Q
n   0.21398143     Peri.   93.22568     -0.92088089     -0.38579364
a   2.7683351      Node    64.08741     +0.32834210     -0.84505439
e   0.1393029      Incl.    3.57273     +0.21016624     -0.37019772
P   4.61           H    7.82          G   0.15           U   0
From 460 observations at 61 oppositions, 1871-1999, mean residual 0".56.

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 11 27    06 29.54   +25 13.1    1.714    2.604   148.1    11.6    11.8
2001 12 02    06 26.30   +25 24.1    1.676    2.597   153.8     9.6    11.6
2001 12 07    06 22.44   +25 35.0    1.643    2.590   159.7     7.6    11.5
2001 12 12    06 18.02   +25 45.5    1.618    2.584   165.7     5.4    11.4
2001 12 17    06 13.18   +25 55.2    1.599    2.577   171.7     3.1    11.2
2001 12 22    06 08.08   +26 03.8    1.587    2.570   176.9     1.2    11.0
2001 12 27    06 02.89   +26 11.2    1.583    2.564   174.6     2.1    11.1
2002 01 01    05 57.78   +26 17.1    1.585    2.557   168.8     4.3    11.2
2002 01 06    05 52.91   +26 21.5    1.595    2.551   162.7     6.6    11.4

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