Since the recovery was already finished by the morning, we started with some characterization of the interferometer. The operator (Berni) launched one set of angular noise injections and one set of longitudinal noise injections at the beginning of the shift. Then Piernicola went to turn on and off the power supply for EDB. After his action we unlocked and relocked in LN2.
Then we started with the SRCL SET scan. We put the BS in full bandwidth and we opened the SRCL_SET loop. Then we starte a scan towards lower SRCL offsets. We waited 20minutes between each point.
- Reference time: 1454862497 – SRCL_SET_TOT = 40.7 – DCP = 424
- 1st point (-5, START 16:34:32 UTC): 1454864091 - SRCL_SET_TOT = 35.8 – DCP = 432
- 2nd point (-10, START 16:57:10 UTC): 1454865528 – SRCL_SET_TOT = 31.2 – DCP = 422
- 3rd point (-15, START 17:23:03 UTC): 1454867052 – SRCL_SET_TOT = 25.5 – DCP = 423
- 4th point (-20, START 17:47:32 UTC): 1454868509 – SRCL_SET_TOT = 20.5 – DCP = 414.5
- 5th point (-25, START 18:13:07 UTC): 1454870228 – SRCL_SET_TOT = 15.5 – DCP = 410
Then I put the offset to 0 with a ramptime of 20 minutes.