Benefits gained and lessons learned from NASA's Small Explorer (SMEX) Program

Details Benefits gained and lessons learned from NASA's Small Explorer (SMEX) Program Benefits gained and lessons learned from NASA's Small Explorer (SMEX) Program

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993casi.proc....1g&link_type=abstract

In Canadian Aeronautics and Space Inst., Proceedings of the CASI Symposium on Small Satellites p 1-12 (SEE N94-35082 10-18)

Astronomy and Astrophysics

Astronomy

Mission Planning, Nasa Space Programs, Project Management, Small Scientific Satellites, Spacecraft Design, Engineering Management, Engineers, Research And Development, Spacecraft Launching

Scientific paper

NASA's Small Explorer Program (SMEX) is a sustained program of scientific satellites limited in mass to 200-300 kg (depending on orbital inclination) for a 500-km circular orbit. The SMEX program was undertaken to obtain the benefits of scientific yield, short development time, and high flight rate, with the goal to launch a mission every year. NASA also uses the program to train engineers and managers in designing and developing spacecraft. The phases of a SMEX mission life cycle are described including the competitive selection of missions through announcement of opportunity and evaluation of proposals, the definition of mission and system requirements, design and development of the spacecraft, testing, launch, and operations. Program content of some SMEX missions is then reviewed. The first SMEX mission was the Solar, Anomalous, and Magnetospheric Particle Explorer, which confirmed that anomalous cosmic rays are only partially ionized atoms. The Fast Auroral Snapshot Explorer was intended to measure the electric, magnetic, and time-variable fields and to record particle flow in the auroral acceleration region. A future mission is the Submillimeter Wave Astronomy Satellite to examine low-level molecular transitions.

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