2023-04-18 at 08:27 HST: Green Detector Full Warm Up

After the Instec pumps had increasing trouble keeping the system cold (the instec cooling power would saturate frequently), impacts began to be seen on the Green detector temperature.

The first temperature change on the detector began on 2023-04-18 at 08:27 HST, the system was back under control at about 12:15 HST the same day, but reached a +1.2 degree delta_T.

A second temperature excursion began on 2023-04-19 at 11:20 HST and ended at 17:00 HST the same day with a delta_T of +5.4 degrees.

The system was warmed and purged to resolve the problem. The warm up began on 2023-04-20 at 00:00 HST and returned to normal operation on 2023-04-21 at 18:00 HST.

Full timespan in Grafana: http://vm-dashboards.keck.hawaii.edu/d/VoSaQfx4k/kpf-green-thermal-control?orgId=1&from=1681822800000&to=1682157600000