To download an installer suitable for creating a bootable installer, use the App Store or use a web browser to download from a compatible Mac. Follow the onscreen installation instructions.Ī bootable installer can be useful if you want to install macOS on multiple computers without downloading the installer each time, or when you can’t install using the other methods. Open your Applications folder and double-click the macOS installer, named Install. pkg file, then follow the onscreen instructions to install the macOS installer into your Applications folder. dmg file to open it and see the package (.pkg) file within.ĭouble-click the.

PreviSat is a satellite tracking software whose purpose is to help you monitor and observe the position of artificial satellites in real time.Use these links to download a macOS disk image (.dmg) file.ĭouble-click the. The tool is able to offer predictions about satellites’ passes and Iridium flares. It features a clean feature lineup where you can view the satellites on a world or sky map.

There are also several built-in parameters that help you gather important information about the position of a satellite in different frames, osculating elements (Keplerian orbital elements), TLE (two-line element) set for computing the position of a satellite at a particular time, predictions, Iridium flares, as well as other handy configuration settings. PreviSat offers support for two built-in modes when it comes to observing the displacement of the satellites in real time or manually setting the time for displaying satellite positions. What’s more, you can get comprehensive information about the satellite numerical position in different frames (terrestrial, horizontal, equatorial), several characteristics, such as velocity and magnitude, position of the Sun and Moon, Cartesian position of the satellite and osculation elements, apogee and perigee, orbital period, as well as info about the brightness and dimensions of the satellite. The program gives you the possibility to calculate the passes of artificial satellites for any location on Earth by specifying the start and end date, location, Sun elevation, minimal elevation of the satellite, and other details. The results can be exported to TXT file format.

For apple instal PreviSat 6.0.1.3