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A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth.
Some of them, like Google Maps and OpenLayers, expose an application programming interface (API) that enable users to create custom applications. These toolkits commonly offer street maps, aerial/satellite imagery, geocoding, searches, and routing functionality.
Comparison of free off-line satellite navigation software This article contains a list with gratis (but not necessarily open source) satellite navigation (or "GPS") software for a range of devices (PC, laptop, tablet PC, mobile phone, handheld PC (Pocket PC, Palm)). Some of the free software mentioned here does not have detailed maps (or maps at all) or the ability to follow streets or type in ...
The program overlays NASA and USGS satellite imagery, aerial photography, topographic maps, Keyhole Markup Language (KML) and Collada files. Though widely available since 2003, WorldWind was released with the NASA Open Source Agreement license in 2004. The latest Java-based version (2.1.0), was released in December 2016. [4]
GLONASS is a global navigation satellite system, providing real time position and velocity determination for military and civilian users.
OpenStreetMap (OSM) is a map database maintained by a community of volunteers via open collaboration. [5] Contributors collect data from surveys, trace from aerial photo imagery or satellite imagery, and import from other freely licensed geodata sources. OpenStreetMap is freely licensed under the Open Database License and is commonly used to make electronic maps, inform turn-by-turn navigation ...
Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume by a small margin, but is less massive than Eris. Like other Kuiper belt objects, Pluto is made primarily of ice and rock ...
Petal Maps is a map service based on TomTom provided by Huawei to devices with the operating system HarmonyOS, Android and iOS. It offers satellite imagery, aerial photography, 3D view surroundings, turn-by-turn navigation, head-up display and route planning for traveling by foot, car, bike, and public transportation.