Computer Science
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm52a19k&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SM52A-19
Computer Science
2455 Particle Precipitation, 2494 Instruments And Techniques, 2704 Auroral Phenomena (2407), 2716 Energetic Particles, Precipitating, 2794 Instruments And Techniques
Scientific paper
Montana State University's interdisciplinary Space Science and Engineering Laboratory (SSEL) under support from the Montana NASA Space Grant Consortium is engaged in an earth orbiting satellite student design and flight project. The Montana EaRth Orbiting Pico Explorer (MEROPE) will carry a modern-day reproduction of the scientific payload carried on Explorer-1. On February 1, 1958 the United States launched its first earth orbiting satellite carrying a 14 kg scientific experiment built by Professor James Van Allen's group at the State University of Iowa (now The University of Iowa). The MEROPE student satellite will carry a reproduction, using current-day technology, of the scientific payload flown on Explorer-1. The CubeSat-class satellite will use currently available, low cost technologies to produce a payload-carrying satellite with a total orbital mass of 1 kg in a volume of 1 cubic liter. The satellite is to be launched in late 2001 into a 600 km, 65° inclination orbit. MEROPE will utilize passive magnetic orientation for 2-axis attitude control. A central microprocessor provides timing, controls on-board operations and switching, and enables data storage. Body mounted GaAs solar arrays are expected to provide in excess of 1.5 W. to maintain battery charge and operate the bus and payload. The Geiger counter will be operated at approximately 50% duty cycle, primarily during transits of the earth's radiation belts. Data will be stored on board and transmitted approximately twice per day to a ground station located on the Bozeman campus of the Montana State University. Owing to the 65° inclination, the instrument will also detect the higher energy portion of the electron spectrum responsible for the production of the Aurora Borealis. This paper describes both the technical implementation and design of the satellite and its payload as well as the not inconsiderable task of large team organization and management. As of March 2001, the student team consists of four graduate students and approximately 45 undergraduates in fields including Physics, Engineering, Computer Sciences, Business, and Liberal Arts. Satellites of this class have the potential to lead to low-cost constellations of sciencecraft making coordinated measurements of the highly dynamic and spatially structured space environment. While key tradeoffs between resource needs and resource availability (e.g. power, telemetry, mass, volume, and cost) constrain payload sophistication, the tremendous advantages of having even simple dispersed multipoint measurements of the Geospace environment far outweigh the loss of payload sophistication in many instances.
Hiscock William
Hunyadi G.
Jepsen S.
Kankelborg Charles C.
Klumpar D. M.
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