Sheila, Camilla
While we had good green (20) and IR (1) FC flashes, we had to move 100urad in ZM3 positive PIT to get any light on SQZT7 OPO IR PD, see -2h30 on screenshot.
We then walked ZM1 and ZM2 both in negative PIT (which seems a bit weird but worked) until we only had to move ZM3 13urad to get light on SQZT7. However in doing this move, we lost the majority of IR light and some green light, see t-cursor #1 of screenshot. I injected the SEED beam at this point and the IR FC camera looked again like a strange cross or swallow bird. I hoped to move ZM3, FC1 and FC2 to bring back IR light but wasn't able to.
I was able to get good green flashes simultaneously with SQAT7 IR light but then I had no IR FC light, see t-cursor #3 of screenshot, 22:35UTC.
Vicky reminded us of 2022 when we had to pico to get FC green/IR co-resonance: 66017, 66281
Sheila, Jenne, Camilla
Today Sheila and I went onto SQZT7 to try to align the FC green REFL beam onto the diode so we could lock the FC in green. Could see on the periscope that the FCGS REFL beam was clipped. Sheila remembers it was not clipped last week before she pico'ed the green beam so we Jenne and I went back to where we had good IR and green FC flashes and undid Friday's 89596 pico-ing. This made the green yaw beam look much worse and flashes decrease as expected.
I then went back to here we had green FC flashes with IR on SQZT7 and repeated when we did yesterday but with YAW, moving ZM1 and bringing flashes back with ZM2 in the direction to de crease the amount ZM3 needed to move to get light back on SQZT7. I did completely loose the FC IR beam doing this though in going to the green FC flashes with IR on SQZT7 place.
