Version $Revision: 1.3 $
Last Update $Date: 2001/11/08 14:46:10 $
HRC CCB Status not reviewed

AXAF Constraints, Restrictions, & Limitations

Number: HRC-C-008

Type: Constraint

Original Date: 5/9/98


Subsystem: HRC

Subject: HRC Focus Shutters Movement and Housing Door

Source:HRC Operations Control Board


CRL Statement:

The HRC focus shutters may only be moved if the HRC housing door is either in the closed or fully opened position.


CRL Rationale/Justification:

The HRC focus shutters motion constraint with respect to the housing door is derived from the HRC design.

CRL Impact:

Motion of the focus shutters, assuming that the door is neither in the closed or opened position, will result in damage to the shutters and possible damage to the housing door or the detector assemblies. Damage to the detector assemblies, focus shutters, or detector housing door can result in the loss of the instrument.


Recommended Action:

Incorporate into the Systems and Operations Procedures, with ASC providing the inputs.


$Log: hrc-c-008.html,v $

Revision 1.3 2001/11/08 14:46:10 juda

HTML "href" tag edits to convert to soft links

Revision 1.2 1998/06/29 18:53:25 juda

removed "?" from constraint number

Revision 1.1 1998/05/11 12:59:25 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