![]() ![]() We offer helpful and impartial information. Hundreds of in-depth reviews offering our unbiased and expert opinion on software. Each article is supplied with a legendary ratings chart helping you to make informed decisions. The largest compilation of the best free and open source software in the universe. Learn C++ with our recommended free books and free tutorials. Management of location and options for display.TLE tools that let you update categories of orbital elements from the Internet and create a TLE file from another by specifying limiting values for orbital elements.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).Developed in C++/Qt, PreviSat works on Linux, Mac OS X and Windows and makes fast and precise calculations.
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