Predictions of passes – calculates passes of artificial satellites for any location on Earth and it is possible to set many parameters (Sun maximum elevation, satellite minimum elevation…). In the “Main” tab, the numerical position is given in different frames (terrestrial, horizontal, equatorial) and some characteristics are given depending on the satellite position (velocity, magnitude). So you can observe the displacements of the satellites in real time, or you can display positions for any times. Real-time, a manual and a simulation mode.Satellite data search (all objects referenced by NORAD since 1957).Intuitive interface (handling of TLE, selection of location, options for display).Weather for observer location and NASA bases.Osculating elements, satellite informations.Topocentric / Equatorial / Terrestrial coordinates (satellites, Sun, Moon).ISS Live and Wall Command Center visualization.NORAD SGP4 model (Hoots, Roehrich, 1980 Vallado, 2006).PreviSat shows satellites in a world map view or in a sky map view and is able to calculate all passes of satellites for any location in the world.ĭeveloped in C++/Qt, PreviSat works on Linux, Mac OS X and Windows and makes fast and precise calculations. PreviSat implements the SGP4 model (revised in 2006) which uses the TLE orbital elements in order to calculate the geocentric position of artificial satellites.
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