The development of flexible sotfware for the Italian/Dutch satellite SAX : Advantages and disadvantages of the use of CASE tools

Report (1991)
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Published Date

29-07-1991

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NLR Technical Publication TP 91288 L

Abstract

The Italian/Dutch satellite SAX is a scientific satellite which has the mission to study röntgen sources. One main requirement for the Attitude and Orbit Control Subsystem (AOCS) is to achieve and maintain a stable accuracy with a limit cycle of less than 90 arcsec during pointings of maximal 28 hours. The main SAX instrument, the Narrow Field Instrument, is highly sensitive to (indirect) radiation coming from the Sun. This sensitivity leads to another main requirement that under no circumstances the safe attitude domain may be left.

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