Upper Atmosphere Research Satellite (UARS)
Upper Atmosphere Research Satellite (UARS) was a NASA-operated orbital observatory that was launched in 1991 and was decommissioned in 2005. The satellite was designed to study the Earth's atmosphere, particularly the ozone layer, and was equipped with a suite of ten scientific instruments. UARS orbited the Earth at an altitude of approximately 600 km and had a polar orbit, which allowed it to observe the entire globe over the course of its mission. The data collected by UARS has contributed significantly to our understanding of the Earth's atmosphere and has been used to improve climate models and inform policy decisions related to the protection of the ozone layer.
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