(5) Astraea

Orbital Elements

The following orbital elements are taken from MPC 24219:

    (5) Astraea
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5   (M-c)          Bowell
M 148.34301              (2000.0)            P               Q
n   0.23869525     Peri.  357.67508     -0.75900112     -0.64850104
a   2.5737925      Node   141.69143     +0.59886233     -0.73029876
e   0.1926067      Incl.    5.36843     +0.25550186     -0.21473269
P   4.13           H    6.85          G   0.15
From 702 observations at 51 oppositions, 1851-1993, 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 06 30    21 54.33   -11 29.9    2.294    3.064   131.5    14.4    11.9
2001 07 05    21 52.85   -11 42.7    2.245    3.065   136.7    13.2    11.8
2001 07 10    21 50.83   -11 58.7    2.201    3.066   142.0    11.8    11.7
2001 07 15    21 48.31   -12 17.6    2.161    3.067   147.5    10.3    11.6
2001 07 20    21 45.30   -12 39.2    2.127    3.068   153.0     8.6    11.5
2001 07 25    21 41.87   -13 03.1    2.100    3.069   158.7     6.9    11.4
2001 07 30    21 38.08   -13 28.9    2.079    3.069   164.5     5.1    11.3
2001 08 04    21 34.02   -13 56.0    2.064    3.069   170.4     3.2    11.2
2001 08 09    21 29.77   -14 23.9    2.057    3.070   176.3     1.2    11.0
2001 08 14    21 25.45   -14 51.8    2.057    3.070   177.7     0.7    11.0
2001 08 19    21 21.14   -15 19.3    2.064    3.069   171.8     2.7    11.1
2001 08 24    21 16.97   -15 45.7    2.079    3.069   165.9     4.6    11.3
2001 08 29    21 13.05   -16 10.6    2.100    3.069   160.1     6.4    11.4
2001 09 03    21 09.46   -16 33.4    2.128    3.068   154.3     8.2    11.5
2001 09 08    21 06.27   -16 54.0    2.162    3.067   148.6     9.8    11.6
2001 09 13    21 03.56   -17 12.0    2.202    3.066   143.0    11.4    11.7
2001 09 18    21 01.38   -17 27.4    2.247    3.065   137.6    12.8    11.8

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