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Gpredict is a real-time satellite tracking and orbit prediction application developed by Alexandru Csete, designed to provide radio amateurs, satellite communication engineers, and space enthusiasts with accurate, up-to-the-second positional data for Earth-orbiting spacecraft. Operating within the Astronomy/Science category, the program calculates and visualizes satellite passes using industry-standard SGP4/SDP4 propagation algorithms, presenting both tabular lists and polar, cartographic, or sky-view plots that update automatically as TLE (Two-Line Element) sets are refreshed from online sources. Users can create multiple modules—each with its own set of tracked objects—so that a single instance can monitor low-Earth weather satellites, geostationary relays, and high-elliptical amateur transponders simultaneously, while configurable alarms warn of upcoming AOS/LOS events with audio cues or external command execution. Rig-control integration via Hamlib allows antennas to follow targeted spacecraft in real time, making the tool valuable for portable uplink/downlink stations, educational ground segments, and emergency communicators who need to know exactly when and where to point their beams. Version 2.3.37, the first and current release offered through the catalog, ships with an updated keplerian element downloader, improved GTK3 interface scaling on high-DPI displays, and faster pass prediction caching for large fleets such as CubeSat swarms and Starlink shells. Because the codebase is lightweight and cross-platform, it can run on modest laptops alongside digital-mode software or be deployed on a single-board computer next to an SDR dongle for unattended operation. Gpredict is available for free on get.nero.com, with downloads provided via trusted Windows package sources (e.g. winget), always delivering the latest version, and supporting batch installation of multiple applications.
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