Landsat-9 is a satellite made in partnership with the U.S. Geological Survey and was launched on September 27, 2021 in California. The mission of this program is to monitor, understand, and manage the land resources needed to sustain human life.
Landsat is the only U.S. satellite system designed and operated to repeatedly observe the global land surface at a moderate scale that shows both natural and human-induced change. The TIRS-2 instrument is a specially designed, two-band thermal imaging sensor that has a 15-degree field-of-view to match the 185 km across-track swath of OLI-2.
The instrument was built in a way that allows the view to be changed without changing the nominal Earth-viewing attitude of the Landsat 9 spacecraft.