Raw accelerometer data recorded by the health sensors of the watch, as exposed to Garmin Health SDK applications.
Moment the message refers to, in UTC. FIT stores it as seconds since the FIT epoch (December 31, 1989, 00:00:00 UTC); decoders usually expose it as a regular date.
Millisecond part of the timestamp, for sub-second precision.
Time between two consecutive samples.
Accelerometer samples on the X axis.
Accelerometer samples on the Y axis.
Accelerometer samples on the Z axis.
timestamp32kUint32High resolution timestamp, ticking 32,768 times per second, used to align raw sensor samples.
mesgNumStringGlobal message number identifying the kind of message. Decoders use it to know which profile to apply to the data.