2,DATETIME,DATETIME,MJD2K,DOUBLE,Mean time of the measurement sequence used for each measurement
2,LATITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation. Latitude north (decimal degrees) of the location of the instrument (+ for north
2,LONGITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation. Longitude east (decimal degrees) of the location of the instrument (+ for east
2,ALTITUDE.INSTRUMENT,CONSTANT,m,REAL,Inst. geolocation. Altitude of the instrument relative to the location site,x
2,ANGLE.SOLAR_ZENITH,DATETIME,deg,REAL,The solar zenith angle at which the measurement was taken,x
2,ANGLE.SOLAR_AZIMUTH,DATETIME,deg,REAL,The solar azimuth angle at which the measurement was taken using north as the reference plane and increasing clockwise (0 for north
2,ANGLE.LUNAR_ZENITH,DATETIME,deg,REAL,The lunar zenith angle at which the measurement was taken (for stations that make direct moon measurements),o
2,ANGLE.LUNAR_AZIMUTH,DATETIME,deg,REAL,The lunar azimuth angle at which the measurement was taken using north as the reference plane and increasing clockwise (0 for north
2,O3.COLUMN_ABSORPTION,DATETIME,DU,SHORT,Dobson Spectrophotomoter Total Column Ozone (describe cross sections used),x
2,O3.COLUMN_ABSORPTION_UNCERTAINTY.RANDOM.STANDARD,DATETIME,DU,SHORT,Total random uncertainty on the total column,o
2,O3.COLUMN_ABSORPTION_UNCERTAINTY.SYSTEMATIC.STANDARD,DATETIME,DU,SHORT,Total systematic uncertainty on the total column,o
2,O3.COLUMN_ABSORPTION_UNCERTAINTY.COMBINED.STANDARD,DATETIME,DU,SHORT,Total combined uncertainty on the total column,x
2,O3.COLUMN_ABSORPTION_AMF,DATETIME,km km-1,REAL,Air Mass Factor,x
2,O3.COLUMN_ABSORPTION_OBSERVATION.CODE,DATETIME,[empty],STRING,WOUDC Code Identifier for Type of Observation (see https://www.esrl.noaa.gov/gmd/ozwv/dobson/dataformat.html),x
2,SOURCE.PRODUCT,INDEPENDENT,[empty],STRING,Native Dobson data file name in form Original_Archive