LIGO Document E1300645-x0

aLIGO, System Reliability & Availability

Document #:
LIGO-E1300645-x0
Document type:
E - Engineering documents
Abstract:
This DCC entry serves as a collection of links to documents regarding, or related to, the reliability and availability (up time or duty cycle) of the Advanced LIGO interferometer system.
Files in Document:
None
Authors:
Notes and Changes:
iLIGO uptime statistics for reference (not aLIGO)
S6 uptime (availability) statistics, and downtime causes:
H1, during the S6 run
searching: H1, at conclusion of S6 run
searching: L1

S5 uptime (availability) statistics and downtime causes:
L1, last 2 months of S5 (76% science mode)
S5 statistics for LHO & LLO are given in T080160

Reference for Table:
N.B.: T0900503 indicates a duty cycle > 80% for last 9 months of S5.
Science Run
 H1
 L1
1st year S5 73%
 60%
1st year S6 48%
 42%
estimated 1st year S6
without commissioning,
with afternoon shift		 68%
 62%

S5 L1 downtime pie charts (evolution):
L1 Period
 uptime
3/6/2006 - 4/16/2006 48% (commissioning)
11/23/2005 - 4/16/2006 54%
4/17/206 - 5/12/2006 48% (69% w/o commissioning)
11/23/2005 - 5/12/2006 53%
5/12/2006 - 6/19/2006 73%
11/23/2005 - 6/19/2006 57%
6/19/2006-7/19/2006 75%
11/23/2005 - 7/19/2006 59%
10/25/2006 - 1/8/2007 66%
11/24/2005 - 1/8/2007 62%
1/8/2007 - 3/14/2007 69%
11/24/2005 - 3/14/2007 63%
8/2/2007 - 10/1/2007 76%
11/23/2005 - 10/1/2007 67%
Referenced by:

DCC Version 3.4.3, contact Document Database Administrators