The initial to map active lava flows from space.
The initial to magnitude a facility’s methane trickle from space.
The initial to lane re-growth in a partially logged Amazon timberland from space.
After 17 years in orbit, one of NASA’s trailblazer Earth satellites for contrast new satellite technologies and concepts comes to an finish on Mar 30, 2017. The Earth Observing-1 (EO-1) satellite will be powered off on that date though will not enter Earth’s atmosphere until 20
Launched on Nov. 21, 2000, EO-1 was designed as a record validation idea focused on contrast cutting-edge satellite and instrument technologies that could be incorporated into destiny missions. Commissioned as partial of NASA’s New Millennium Program, a satellite was partial of a array of missions that were grown during a cheaper cost tab to exam new technologies and concepts that had never been flown before.
“EO-1 has altered a approach bright Earth measurements are being done and used by a scholarship community,” pronounced Betsy Middleton, EO-1’s Project Scientist during NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
EO-1 was launched with 13 new technologies, including 3 new instruments. EO-1’s many critical record idea was to countenance a Advanced Land Imager (ALI) for destiny Earth-observing satellites. The ALI supposing a accumulation of Earth information including observations of timberland cover, crops, coastal waters and aerosols. The ALI’s instrument pattern and onboard record directly made a pattern of a Operational Land Imager (OLI) on Landsat 8, now in orbit.
EO-1’s other pivotal instrument is a hyperspectral instrument called Hyperion that allows scientists to see chemical voters of Earth’s aspect in excellent fact with hundreds of wavelengths. These information concede scientists to brand specific minerals, lane foliage form and vitality of forests and guard volcanic activity. The believe acquired and record grown from Hyperion is being incorporated into a NASA judgment for a intensity destiny hyperspectral satellite, a Hyperspectral Infrared Imager, that will investigate a world’s ecosystems, such as identifying opposite forms of plants and assessing wildfires and droughts.
With both of these instruments, a EO-1 group was means to acquire images with high spatial fortitude of events and healthy disasters around a universe for anyone who requested it. The EO-1 group could indicate a instruments during any specific plcae and accumulate images each dual to 5 days of a sold spot, that was really useful for scientists as good as disaster service managers perplexing to stay sensitive of fast changing events. (Landsat typically looks during a same area once each 16 days.) EO-1 prisoner scenes such as a charcoal after a World Trade Center attacks, a flooding in New Orleans after Hurricane Katrina, volcanic eruptions and a vast methane trickle in southern California.
EO-1 also served as a profitable trailblazer for a accumulation of space technologies. Technologists commissioned and tested liberty program on EO-1 that authorised a satellite to make a possess decisions formed on a calm of a information it collected. For instance, if a scientist educated EO-1 to take a design of an area where a volcano was now erupting, a program could confirm to automatically take a follow-up design a subsequent time it upheld over a location.
The idea also certified program that authorised “formation flying” that kept EO-1 orbiting Earth accurately one notation behind a Landsat-7 satellite, already in orbit. The strange purpose was to countenance a new ALI technologies for use in Landsat 8, that was accomplished.
EO-1 was creatively usually ostensible to final one year, though after that initial mission, a satellite had no vital issues or breakdowns. On a shoestring bill contributed by NASA, a U.S. Geological Survey, a National Oceanic and Atmospheric Administration, National Reconnaissance Office and Naval Research Laboratory, a satellite continued to work for sixteen some-more years, ensuing in some-more than 1,500 papers published on EO-1 research.
On Mar 30, 2017, a satellite will be decommissioned, emptied of a appetite and turn inert. Without adequate fuel to keep EO-1 in a stream orbit, a idea group will close down a satellite and wait for it to lapse to Earth. When EO-1 does reenter a earth’s atmosphere in about 39 years, it is estimated that all a components will bake adult in a atmosphere.
“We’ll substantially only see EO-1 as a strain in a sky as it disintegrates,” pronounced Middleton.
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