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The Soil Moisture Active Passive (SMAP) mission proposes to deploy an Earth-orbiting satellite with the goal of obtaining global maps of soil moisture content at regular intervals. Launch is currently planned in 2014. The spacecraft bus would be built at the Jet Propulsion Laboratory (JPL), incorporating both new avionics as well as hardware and software heritage from other JPL projects. [4] provides...
Missions involving robotic space flight typically have a way to change the software that controls the flight system, or some part of it, such as an instrument, after launch. Usually this is accomplished by uplinking small sets of binary machine instructions and writing them to known locations in memory. We present an approach, used on the Aquarius mission, that involves replacing running components...
Planetary science missions, such as those that explore Mars and Saturn, employ a variety of spacecraft such as arbiters, landers, probes, and rovers. Each of these kinds of spacecraft depends on embedded real-time control systems - systems that are increasingly being asked to do more as challenging new mission concepts are proposed. For both systems engineers and software engineers the large challenges...
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