Earth Observing -1 (EO-1)

Earth Observing -1 (EO-1) is a small satellite the size of a small refrigerator. EO-1 was only supposed to last one year and was developed and operated on a shoestring budget—yet it lasted 17 years. With more than 1,500 research papers generated and more than 92,000 images captured, the EO-1 satellite has exceeded expectations in its technology, research goals, and longevity. EO-1 was one of the first satellites to capture the scene after the World Trade Center attacks and the flooding in New Orleans after Hurricane Katrina. High-quality satellite imagery of these scenes and many others were captured by EO-1 and quickly provided for use in major news outlets reporting on the events. EO-1 was among the first satellites to be programmed with a form of artificial intelligence (AI) software. Autonomous Sciencecraft Experiment (ASE) software was developed by NASA JPL and uploaded to EO-1 three years after it launched. ASE software allows the satellite to make decisions based on the data it collects. For instance, if a scientist commanded EO-1 to take a picture of an erupting volcano, the software could decide to automatically take a follow-up image the next time it passed overhead. VxWorks runs on two Mongoose M5 processors on EO-1. VxWorks manages the EO-1 command and data handling functions. In addition, VxWorks powers the Wideband Advanced Recorder Processor (WARP), a large mass storage device, which runs the ASE software.
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