2024-01-09: at 1:40pm HST: KPF Red deltaT = 75 mK
A power outage at the summit caused the gate valve to close when pressure was lost. The resulting pressure increase in the vacuum chamber eventually led to warming of the detectors.
A power outage at the summit caused the gate valve to close when pressure was lost. The resulting pressure increase in the vacuum chamber eventually led to warming of the detectors.