Missions and Sensors - 1 of 7
Missions and Sensors FAQs - 7 Found
The Landsat 8 and Landsat 7 satellites both maintain a near-polar, sun-synchronous orbit, following the World Reference System (WRS-2). They each make an orbit in about 99 minutes, complete over 14 orbits per day, and provide complete coverage of the Earth every 16 days. There is an 8-day offset between the two satellites.
The descending (daytime) node from north to south crosses the equator between 10:00 am and 10:15 am (local time) on each pass to provide maximum illumination with minimum water vapor (haze and cloud build-up).
Chapter 5 of the Landsat 7 Science Data Users Handbook and the Landsat 8 Science Data Users Handbook provides further details on the orbit of the satellites. (coming soon)