Modified Julian Day

GPTKB entity

Statements (17)
Predicate Object
gptkbp:instanceOf timekeeping system
gptkbp:abbreviation gptkb:MJD
gptkbp:definedIn Julian Day minus 2400000.5
https://www.w3.org/2000/01/rdf-schema#label Modified Julian Day
gptkbp:introduced Clyde W. Smith
gptkbp:introducedIn 1957
gptkbp:purpose simplify Julian Day numbers
gptkbp:relatedTo gptkb:Julian_Day
gptkbp:startDate 1858-11-17 00:00:00 UT
gptkbp:usedFor satellite tracking
time series data
recording astronomical events
gptkbp:usedIn gptkb:astronomy
geodesy
space science
gptkbp:bfsParent gptkb:Julian_Day
gptkbp:bfsLayer 6