File $Source: /home/juda/www/hrc_flight/contingency/RCS/cal_failsafe.html,v $
Version $Revision: 1.3 $
Last Update $Date: 1999/03/03 21:54:51 $
HRC CCB Status Approved

OP03 Procedures op03:

HRC Contingency Procedures

Cal Source Fail Safe

Description:

This procedure is used to fire the HRC calibration source failsafe. The HRC door is positioned so that the cal source illuminates the detector so that actuation of the failsafe can be verified. The failsafe is actuated. Finally, the HRC door is returned to the open position.

Once this procedure is complete the instrument can be returned to normal operation.

Procedure Trigger:

This procedure is a measure of last resort. If, after using all possible combinations of power configuration, the cal source sticks in the exposed position and the Flight Director approves its use, the Flight Operations Team will execute this procedure with support from the Science Operations Team.

Procedure

$Log: cal_failsafe.html,v $

Revision 1.3 1999/03/03 21:54:51 juda

changed links for files with name changes

Revision 1.2 1998/11/18 15:34:49 juda

removed steps for powering down the HRC - added positioning the door to use the cal source and opening it at the end

Revision 1.1 1998/11/04 13:59:59 juda

Initial revision

Dr. Michael Juda
Harvard-Smithsonian Center for Astrophysics
60 Garden Street, Mail Stop 70
Cambridge, MA 02138, USA
Ph.: (617) 495-7062
Fax: (617) 495-7356
E-mail: mjuda@cfa.harvard.edu