What is ogn?

OGN, or the Open Global Navigation Satellite System, is a global navigation satellite system (GNSS) being developed by South Korea. Its development began in 2016 with the aim of providing an independent positioning technology for South Korea, reducing its reliance on foreign GNSS systems such as GPS (USA), GLONASS (Russia), and Galileo (European Union).

OGN uses a combination of geostationary and inclined geosynchronous Earth orbit (IGSO) satellites to provide positioning, navigation, and timing (PNT) services. The constellation currently consists of three geostationary and four IGSO satellites. The OGN signal format is compatible with the global navigation satellite systems.

OGN is expected to provide a positioning accuracy of better than five meters and a timing accuracy of better than 20 nanoseconds. It also has the potential to be used for various applications, including transportation, agriculture, and disaster management.

As of 2021, OGN is still in its developmental phase, and its full constellation is not yet operational. However, it has already demonstrated its capabilities and potential through various tests and experiments.