Jennie W, Annamaria, Sheila

Annamaria suggested we check ASC-POP_A and B trends during the time we got a drop in optical gain before last maintenance Tuesday, as a result of which we had to change our SR2 and SR3 alignment.
We don't see a large change in the sums or the pitch and yaw over the drop in range and optical gain between 18:33:47 UTC on the 22nd and 12:3803 UTC on the 23rd.

From the plot it can be seen that the optical gain dropped by about 5% over this period.

The range dropped by ~10 Mpc.

ASC_POP_B_SUM dropped by 0.1%.

ASC_POP_B_PIT dropped by 0.08%.

ASC_POP_B_YAW dropped by 4.9%.

ASC_POP_A_NSUM dropped by 0.06%.

ASC_POP_A_PIT dropped by 1.3%.

ASC_POP_A_YAW dropped by 0.7%.

Looking at the zoomed out version is seems these are within normal drifts in previous locks.