Advanced Stellar Compass FMECA

This documents describes the Advanced Stellar Compass (ASC) failure modes, effects and criticality analyses (FMECA).The objectives of the FMECA are:1)To identify the possible failure;2)To identify the effects of the possible failures including the identification of potential hazards to determine the need of possible safety features;3)To demonstrate the autonomy of the instrument against faults;4)To identify mission critical failure effects and to issue recommendations to eliminate the risks.The analysis is done using the standard rules of FMECA and covers flight and ground HW and SW as well as operations.