Payloads: Actiwatch Plus: Actiwatch Plus devices were connected to the HRF-1 rack using a USB Hub in preparation for ground commanding and battery charging. The Actiwatch is a waterproof, nonintrusive, sleep-wake activity monitor worn on the wrist of a crewmember. The device contains a miniature uniaxial accelerometer that produces a signal as the subject moves. …
Click here for original story, ISS Daily Summary Report – 12/01/2021
Source: ISS Report