(85) Io
Orbital Elements
The following orbital elements are taken from MPO 31791(85) Io Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 Goffin M 298.35426 (2000.0) P Q n 0.22786463 Peri. 122.07211 +0.81685260 +0.57092909 a 2.6547162 Node 203.43216 -0.57397920 +0.79022775 e 0.1922251 Incl. 11.96077 -0.05744310 +0.22266586 P 4.33 H 7.61 G 0.15 U 0 From 946 observations at 71 oppositions, 1865-2002, mean residual 0".57.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.Personalized ephemerides for this object (and others) can be generated using the MPES.
Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2007 04 21 17 35.57 -12 01.9 1.751 2.476 125.7 19.2 11.8 2007 04 26 17 36.09 -11 24.1 1.693 2.465 130.2 18.2 11.7 2007 05 01 17 35.92 -10 45.2 1.639 2.455 134.8 16.9 11.5 2007 05 06 17 35.05 -10 05.6 1.589 2.445 139.5 15.6 11.4 2007 05 11 17 33.49 -09 25.8 1.544 2.435 144.1 14.1 11.3 2007 05 16 17 31.25 -08 46.4 1.504 2.425 148.8 12.5 11.2 2007 05 21 17 28.40 -08 07.9 1.469 2.415 153.2 10.9 11.0 2007 05 26 17 25.01 -07 31.2 1.439 2.406 157.3 9.4 10.9 2007 05 31 17 21.18 -06 56.9 1.416 2.396 160.6 8.1 10.8 2007 06 05 17 17.02 -06 25.7 1.398 2.386 162.7 7.3 10.8 2007 06 10 17 12.66 -05 58.2 1.387 2.377 163.0 7.2 10.7 2007 06 15 17 08.24 -05 35.1 1.382 2.367 161.4 7.8 10.7 2007 06 20 17 03.91 -05 16.8 1.383 2.358 158.4 9.1 10.8 2007 06 25 16 59.83 -05 03.6 1.390 2.349 154.5 10.7 10.9 2007 06 30 16 56.12 -04 55.7 1.402 2.340 150.2 12.5 10.9 2007 07 05 16 52.89 -04 52.9 1.420 2.331 145.6 14.3 11.0 2007 07 10 16 50.24 -04 55.1 1.442 2.322 140.9 16.0 11.1 2007 07 15 16 48.23 -05 02.1 1.469 2.313 136.3 17.7 11.2 2007 07 20 16 46.92 -05 13.4 1.500 2.304 131.7 19.2 11.3 2007 07 25 16 46.34 -05 28.5 1.534 2.296 127.3 20.6 11.4 2007 07 30 16 46.51 -05 47.0 1.571 2.288 122.9 21.9 11.4 2007 08 04 16 47.40 -06 08.3 1.611 2.280 118.7 23.0 11.5 2007 08 09 16 49.02 -06 32.0 1.653 2.272 114.7 23.9 11.6 2007 08 14 16 51.34 -06 57.5 1.697 2.264 110.7 24.7 11.7 2007 08 19 16 54.35 -07 24.3 1.743 2.257 106.9 25.4 11.7 2007 08 24 16 58.00 -07 52.1 1.790 2.249 103.3 25.9 11.8 2007 08 29 17 02.27 -08 20.3 1.838 2.242 99.7 26.4 11.9
