Compiled from NASA & USGS sources
The Landsat 9 Earth observation satellite has been launched on 27 September 2021 to continue the Landsat program’s repeat global observations for monitoring, understanding, and managing Earth’s natural resources.
The satellite will operate in its predecessor, Landsat 7’s near-polar, sun-synchronous orbit at an altitude of 705 km, replacing it as it reaches its end of life as a scientific instrument. Like its predecessor, it will work in tandem with Landsat 8 to collect images spanning the entire planet every eight days. (Landsat 7's orbit will be lowered to prepare for NASA's On-Orbit Servicing, Assembly, and