| File |
$Source: /home/juda/www/hrc_flight/contingency/RCS/antico_off.html,v $ |
| Version |
$Revision: 1.2 $ |
| Last Update |
$Date: 1999/03/03 21:54:39 $ |
| HRC CCB Status |
Approved |
Excessive Antico Shield Rate - Antico Shields Off
Description:
This procedure turns off the anticoincidence shield PMT HV to protect
them in the event of excessive rates. The procedure will send commands
to turn off both PMTs; only one should be on.
Procedure Trigger:
The procedure shall be initiated by the Flight Operations Team if the
antico event rate telemetry exceeds the "red" limit for more than 5
seconds in format 1 or for more than 40 seconds in any other
format. The antico rate telemetry mnemonic for this rate is:
Note: Telemetry mnemonic 2SHEV2RT is not included because
experience gained during the ground test program showed it can
occasionally indicate a red-limit condition when none exists.
This procedure shall also be executed by the Flight Operations Team at
any time at the request of the Science Operations Team.
Procedure
$Log: antico_off.html,v $
Revision 1.2 1999/03/03 21:54:39 juda
changed links for files with name changes
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