Reconfigurability Analysis Method for Spacecraft Autonomous Control

Table 1

Fault severity level definition.

Level	Definition
I	System function is lost or service life is shortened seriously.
II	System function is degraded seriously or service life is reduced by 1/4 to 1/2.
III	System function is degraded partially or service life is reduced below 1/4.
IV	There is little affection in system function and service life.