The chrono shot session message summarizes a session of a ballistic chronograph: number of shots, projectile and speed statistics.
timestampDateTimeMoment 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.
Lowest speed measured.
Highest speed measured.
Average speed of the projectiles.
shotCountUint16Number of shots.
projectileTypeEnumKind of projectile: arrow, rifle or pistol cartridge, shotshell, pellet…
otherarrowrifleCartridgepistolCartridgeshotshellairRiflePelletWeight of the projectile, in grains.
Standard deviation of the speeds.
mesgNumStringGlobal message number identifying the kind of message. Decoders use it to know which profile to apply to the data.