As has been the norm recently, D/PRMI took a very long time to catch despite good alignment and buildups. There were also a few low-state locklosses due to the ALS-X PLL beatnote having an error, which would then take a few minutes to fix itself, so with everything together this was a lengthy relock (but I did not need to run an alignment; just some slight adjustments of PRM and BS).
After reaching low noise, SQZ couldn't lock because the SHG PZT voltage was low at around 3.4V and Guardian would not proceed. Relocking the SHG did not seem to move the PZT to a better place, so I simply lowered the minimum SHG PZT voltage threshold in SQZ_MANAGER from 5 to 3 and loaded the Guardian. After that, the SQZ_SHG Guardian is still giving a warning about the PZT voltage being low, but SQZ_MANAGER was able to make it to 'FRED_DEP_SQZ' and otherwise things looked okay, so I took H1 into observing. This may need to be reverted or addressed properly tomorrow. [Tagging SQZ]
Back to observing at 03:45 UTC.
As has been the norm recently, D/PRMI took a very long time to catch despite good alignment and buildups. There were also a few low-state locklosses due to the ALS-X PLL beatnote having an error, which would then take a few minutes to fix itself, so with everything together this was a lengthy relock (but I did not need to run an alignment; just some slight adjustments of PRM and BS).
After reaching low noise, SQZ couldn't lock because the SHG PZT voltage was low at around 3.4V and Guardian would not proceed. Relocking the SHG did not seem to move the PZT to a better place, so I simply lowered the minimum SHG PZT voltage threshold in SQZ_MANAGER from 5 to 3 and loaded the Guardian. After that, the SQZ_SHG Guardian is still giving a warning about the PZT voltage being low, but SQZ_MANAGER was able to make it to 'FRED_DEP_SQZ' and otherwise things looked okay, so I took H1 into observing. This may need to be reverted or addressed properly tomorrow. [Tagging SQZ]