(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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