Use Case:  Disable Field Stabilization

Description:  The Field Stabilization is disabled.

Role(s)/Actor(s): 
Primary: Operator, Maintenance, AG
Secondary: FSS Strap, TRS

Priority: Major

Performance: A couple of seconds

Frequency: After each preset when guiding is enabled with field stabilization, or at any time manually during operation while tracking or for test purpose.

Package Assignment:  Chopping.

Preconditions: 

• FSS Strap is ONLINE
• Guide star available
• Guiding Reference point is set
• M6 is ONLINE

Basic Course: 

• Send command DISFS to enable Field Stabilization.
• ATCS send the command FSS/DISFS to Stop FSS Acquisition in Closed Loop
  Exception Course: Command failed
Exception Course: Command failed
• ATCS returns OK reply

Exception Course: Command Failed

• ATCS returns ERROR reply
  

  Postconditions: 

  Issues to be Determined or Resolved: 

  Notes:

  Last modified: Mon Feb 25 13:33:45 UTC 2002