(60) Echo

Orbital Elements

The following orbital elements are taken from MPC 27692:

   (60) Echo
Epoch 2001 Apr. 1.0 TT = JDT 2452000.5                  Goffin
M 252.04170              (2000.0)            P               Q
n   0.26622387     Peri.  270.51838     -0.21383382     -0.97678486
a   2.3931581      Node   191.85253     +0.91939014     -0.19677078
e   0.1825581      Incl.    3.60119     +0.33014675     -0.08469119
P   3.70           H    8.21          G   0.27           U   0
From 434 observations at 64 oppositions, 1860-1994, mean residual 1".05.

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 09 08    02 17.43   +13 17.2    1.513    2.284   128.9    20.1    11.8
2001 09 13    02 17.67   +13 08.6    1.459    2.273   133.7    18.7    11.6
2001 09 18    02 17.15   +12 55.5    1.408    2.263   138.8    17.0    11.5
2001 09 23    02 15.88   +12 38.0    1.362    2.253   144.0    15.2    11.4
2001 09 28    02 13.86   +12 16.2    1.321    2.243   149.5    13.1    11.2
2001 10 03    02 11.15   +11 50.2    1.284    2.233   155.2    10.8    11.1
2001 10 08    02 07.79   +11 20.5    1.254    2.222   161.0     8.4    10.9
2001 10 13    02 03.89   +10 47.7    1.229    2.212   167.0     5.8    10.8
2001 10 18    01 59.58   +10 12.5    1.210    2.202   173.0     3.1    10.6
2001 10 23    01 55.01   +09 35.9    1.198    2.193   177.9     1.0    10.4
2001 10 28    01 50.37   +08 59.2    1.192    2.183   173.8     2.8    10.5
2001 11 02    01 45.84   +08 23.6    1.193    2.173   167.7     5.6    10.7
2001 11 07    01 41.59   +07 50.2    1.200    2.163   161.6     8.3    10.8
2001 11 12    01 37.77   +07 20.1    1.213    2.154   155.5    11.0    10.9
2001 11 17    01 34.52   +06 54.2    1.232    2.145   149.6    13.5    11.0
2001 11 22    01 31.97   +06 33.4    1.257    2.135   143.9    15.8    11.1
2001 11 27    01 30.18   +06 18.0    1.285    2.126   138.3    18.0    11.2
2001 12 02    01 29.20   +06 08.3    1.318    2.117   133.0    19.9    11.3
2001 12 07    01 29.04   +06 04.3    1.355    2.108   127.9    21.6    11.4
2001 12 12    01 29.69   +06 06.0    1.395    2.100   123.0    23.2    11.5
2001 12 17    01 31.16   +06 13.0    1.437    2.091   118.3    24.5    11.6
2001 12 22    01 33.41   +06 25.1    1.482    2.083   113.8    25.6    11.7
2001 12 27    01 36.39   +06 41.9    1.528    2.075   109.5    26.5    11.7
2002 01 01    01 40.08   +07 03.0    1.576    2.067   105.4    27.3    11.8
2002 01 06    01 44.41   +07 27.9    1.625    2.059   101.4    27.9    11.9

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