NASA's Earth Observer-1 (EO-1) has reached its eighth anniversary on orbit. The EO-1 satellite, launched on November 21, 2000, had an initial design and mission life of one year, but has continued successful operations for more than 7 years past the initial mission.

ATK served as the Prime Contractor, Mission Integrator, and Bus Developer for the EO-1 mission. The Earth Observing-1 (EO-1) mission developed and validated a number of instrument and spacecraft bus breakthrough technologies designed to enable the development of future earth imaging observatories. EO-1 has performed more than 76,000 images to date and has spawned over 404 related publications. EO-1 is currently being used as part of a sensor web that allows autonomous observing of earth images. The EO-1 extended mission supports on-orbit testbed activities for advanced technology and hyper-spectral research. Currently, EO-1 is performing more than 90 data collection events a week. The Spacecraft mission has performed non traditional earth observation activities such as the monitoring of brush fires, assessing post hurricane damage and monitoring active volcanic eruptions using both multi-spectral and hyper-spectral imaging.