This software is used to control the ground access of a spacecraft. It will
track all the ground stations that the spacecraft has access to and will set
the output device status message to the has access flag.
The output device status message for the ground access control software.This will determine if the spacecraft is in ground access mode and willreturn an IsActive flag on the message.
This method is called whenever some key parameters are changedand any new local variables are required to be recalculated. Thiscan be called by the software chains if a configuration of somevalues are updated.