2,LATITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. Geolocation; latitude north (decimal degrees) of the location of the instrument (+ for north; - for south),x
2,LONGITUDE.INSTRUMENT,CONSTANT,deg,REAL,Inst. geolocation; east (decimal degrees) of the location of the instrument (+ for east; - for west),x
2,ALTITUDE.INSTRUMENT,CONSTANT,m,INTEGER,Inst. Geolocation; altitude of the instrument relative to the location site,x
2,DATETIME,DATETIME,MJD2K,DOUBLE,Weighted meas. time; defined relative to reference datetime of Jan. 1 2000 at 0:00:00 UT which is equal to 0.00,x
2,ANGLE.VIEW_ZENITH,[CONSTANT|INDEPENDENT|DATETIME;INDEPENDENT],deg,REAL,The mean zenith viewing direction(s) of the instrument,x
2,ANGLE.VIEW_AZIMUTH,[INDEPENDENT|DATETIME;INDEPENDENT],deg,REAL,The actual azimuth viewing directions of the instrument using north as the reference plane and increasing clockwise (0 for north; 90 for east and so on),x
2,ANGLE.SOLAR_ZENITH,DATETIME,deg,REAL,Weighted mean SZA (if measurements are diurnal),o
2,DATETIME.START,DATETIME,MJD2K,DOUBLE,Start time of the measurement sequence used for each retrieval
2,DATETIME.STOP,DATETIME,MJD2K,DOUBLE,End time of the measurement sequence used for each retrieval
2,DATETIME.START,DATETIME,MJD2K,DOUBLE,Start time of the measurement sequence used for each retrieval; defined relative to reference datetime of Jan. 1 2000 at 0:00:00 UT which is equal to 0.00,x
2,DATETIME.STOP,DATETIME,MJD2K,DOUBLE,End time of the measurement sequence used for each retrieval; defined relative to reference datetime of Jan. 1 2000 at 0:00:00 UT which is equal to 0.00,x