Ana Lam, Madox McGrae-Menge, Yasmeen Asali, Emily Calamari

We worked on analyzing DRMI lock acquisition the past couple weeks with Sheila. We downloaded HI:GRD-ISC_LOCK_STATE_N data from August 2018 through January 2019 and examined the transition from Acquire DRMI 1f (101) to DRMI Locked Prep ASC (102) specifically calculating the duration and outcome of DRMI locking attempts. The scripts we developed can be found here.

The attached plot shows the past five months of DRMI locking attempt durations averaged by hour and colored by outcome, where "Success" indicates a successful transition from state 101 to 102 and "Failure" denotes any time the system reverted to a lower state. The vertical line marks December 18th when the TCS settings were reverted back to 30W, and we observed a statistically significant difference between the distribution duration means between the two time intervals (see github scripts for U-Test details).