Staff. Sgt. Kesa Wood, 6th Space Operations Squadron trainee, maintains the health of a Defense Meteorological Satellite Program at Schriever Air Force Base, Colorado, Nov. 18, 2019. The DMSP is a satellite constellation that has a low Earth orbit and orbits the Earth’s poles. The satellite constellation provides meteorological and atmospheric data to government and civil agencies. (U.S. Air Force photo by Airman 1st Class Jonathan Whitely)