NASA's Earth Observing 1. or EO-1. satellite and the SAC-C spacecraft for the Argentine
Commission on Space Activities were launched aboard a Boeing Delta II rocket
on November 21. 2000. from Vandenberg Air Force Base. CA.
The two satellites are part of the AM "Morning" Constellation - an international constellation
devoted to Earth observation.
As NASA's first New Millennium Program Earth Observing Mission. EO-1 has validated
advanced land imaging and unique spacecraft technologies.
The original EO-1 Mission to test technology was successfully completed in November 2001.
In its Extended Mission time. EO-1 has been used by the United States Geological Survey and
to test new cost-saving software that operates the satellite semi-autonomously.
The SAC-C mission involves observations of Earth and of the Argentine territory in particular.
It assesses the soil and marine ecosystems. and provides data on atmospheric temperature.
water vapor content. magnetic and gravitational fields. and the atmosphere and ionosphere.