Online Log
The 3rd. shift [1 Sep. 15:00 - 1 Sep. 23:00]
Core: R. Takahashi, Sub: M. Ando
[Date 1 Sep. Time 16 : 10 #HDAQ 2474 M. Ando ]
Noise level (50-700Hz) is not good since last lock acquisition.
Burst noises in the main signal.
[Date 1 Sep. Time 16 : 19 #HDAQ 1285 R. Takahashi ]
adjust arm alignment using pico-motor.
adjust RM alignment using DC offset.
[Date 1 Sep. Time 17 : 00 #HDAQ 2519 M. Ando ]
Noise level: good after last adjustment.
Start time for 'Obs. Time' has been wrong.
-> corrected.
total obs. time: 15:30
duty cycle : 86.4%
[Date 1 Sep. Time 17 : 10 #HDAQ 2531 M. Ando ]
IFO unlocked.
MC unlocked, too.
[Date 1 Sep. Time 17 : 47 #HDAQ 2565 M. Ando ]
Obs. start
failed several times in automatic switching of servo loops
--> manual switching for L_-
L_- offset : large
[Date 1 Sep. Time 18 : 37 #HDAQ 2612 R. Takahashi ]
Decrease gain of asc without ''adj''.
Valu: 1.00 -> 0.70
Change MO media for DL.
[Date 1 Sep. Time 19 : 38 #HDAQ 2666 R. Takahashi ]
Lock lost
[Date 1 Sep. Time 20 : 11 #HDAQ 2698 R. Takahashi ]
IFO Lock.
Since exchange servo did not succeed, gain of asc was increased.
Valu: 0.7 -> 1.0
[Date 1 Sep. Time 21 : 7 #HDAQ 2756 M. Ando ]
IFO unloced
[Date 1 Sep. Time 21 : 27 #HDAQ 2768 M. Ando ]
IFO locked.
[Date 1 Sep. Time 21 : 44 #HDAQ 2783 M. Ando ]
IFO unlocked.
[Date 1 Sep. Time 22 : 00 #HDAQ 2798 M. Ando ]
IFO locked.
[Date 1 Sep. Time 22 : 07 #HDAQ 2802 M. Ando ]
Noise level: good, almost best.