TAI (International Atomic Time)

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:standard
gptkbp:abbreviation	gptkb:TAI
gptkbp:accuracy	better than one nanosecond per day
gptkbp:basisFor	gptkb:atomic_clocks
gptkbp:category	atomic time scale
gptkbp:compatibleWith	leap seconds
gptkbp:differenceFromUTC	TAI is ahead of UTC by a number of leap seconds
gptkbp:established	1955
gptkbp:firstDefined	13th General Conference on Weights and Measures
gptkbp:fullName	gptkb:International_Atomic_Time
gptkbp:hasUnit	second
gptkbp:language	gptkb:French
gptkbp:locationOfClocks	worldwide
gptkbp:maintainedBy	gptkb:Bureau_International_des_Poids_et_Mesures
gptkbp:measures	SI seconds
gptkbp:meridian	gptkb:Greenwich_meridian
gptkbp:numberOfParticipatingClocks	over 400 atomic clocks
gptkbp:predecessor	gptkb:UTC
gptkbp:purpose	provide a stable and continuous time scale
gptkbp:relatedTo	gptkb:UTC gptkb:UT1
gptkbp:secondDefinedBy	cesium-133 atom
gptkbp:successor	gptkb:Ephemeris_Time
gptkbp:usedBy	gptkb:astronomy metrology satellite navigation
gptkbp:usedFor	scientific timekeeping basis for UTC
gptkbp:英文名	Temps Atomique International
gptkbp:bfsParent	gptkb:GPS_Time
gptkbp:bfsLayer	8
https://www.w3.org/2000/01/rdf-schema#label	TAI (International Atomic Time)