NASA's Terra satellite (originally known as Earth Observing System EOS AM-1) was the first spacecraft in the EOS program. Terra carried multispectral imagers, a radiation budget instrument, a detector to measure CO and methane pollution, and an instrument to study cloud top and vegetation properties.

Total Mass: 4,854 kg.

First launch in NASA's Earth Observing System program. Terra carried multispectral imagers, a radiation budget instrument, a detector to measure CO and methane pollution, and an instrument to study cloud top and vegetation properties.