Use Case:  Center M10

Description:  This action sends the mirror M10 back to its center position.

Role(s)/Actor(s): 
Primary: Maintenance
Secondary: M10

Priority: Major

Performance: TBD

Frequency: At every optical alignment for lateral pupil positioning.

Package Assignment:  M10 Subsystem.

Preconditions: 

• M10 is ONLINE

Basic Course: 

• Send command CENTER to center M10 to the configured tilt values (in OLDB)
  Exception Course: Command failed
• ATCS sends center command to M10 sub-system

  Interface:  IfM10.Tilting.SetAbs

  Exception Course: Command failed
• ATCS returns OK reply

Exception Course: Command failed

• ATCS returns ERROR reply

Postconditions: 

• M10 at Center position as configured in DB

Issues to be Determined or Resolved: 

Notes: At INIT time, the mirror M10 is tilted to the angles configured in the OLDB (in arcsec).

Last modified: Tue Jun 11 15:01:19 UTC 2002