Column 01: day of month
Column 02: month
Column 03: year
Column 04: hour
Column 05: minute
Column 06: second
Column 07: day of the year
Column 08: day if the year (fraction)
Column 09: AOD_1640 nm
Column 10: AOD_1020 nm
Column 11: AOD_870 nm
Column 12: AOD_675 nm
Column 13: AOD_667 nm
Column 14: AOD_555 nm
Column 15: AOD_551 nm
Column 16: AOD_532 nm
Column 17: AOD_531 nm
Column 18: AOD_500 nm
Column 19: AOD_490 nm
Column 20: AOD_443 nm
Column 21: AOD_440 nm
Column 22: AOD_412 nm
Column 23: AOD_380 nm
Column 24: AOD_340 nm
Column 25: precipitable water (cm)
Column 26: Triplet_Variability_1640
Column 27: Triplet_Variability_1020
Column 28: Triplet_Variability_870
Column 29: Triplet_Variability_675
Column 30: Triplet_Variability_667
Column 31: Triplet_Variability_555
Column 32: Triplet_Variability_551
Column 33: Triplet_Variability_532
Column 34: Triplet_Variability_531
Column 35: Triplet_Variability_500
Column 36: Triplet_Variability_490
Column 37: Triplet_Variability_443
Column 38: Triplet_Variability_440
Column 39: Triplet_Variability_412
Column 40: Triplet_Variability_380
Column 41: Triplet_Variability_340
Column 42: Triplet_Variability_Precipitable Water(cm)
Column 43: 440-870_Angstrom_Exponent
Column 44: 380-500_Angstrom_Exponent
Column 45: 440-675_Angstrom_Exponent
Column 46: 500-870_Angstrom_Exponent
Column 47: 340-440_Angstrom_Exponent
Column 48: 440-675_Angstrom_Exponent[Polar],
Column 49: AERONET_Instrument_Number
Column 50: Site_Latitude(Degrees),
Column 51: Site_Longitude(Degrees),
Column 52: Site_Elevation(m),
Column 53: Solar_Zenith_Angle(Degrees),
Column 54: Optical_Air_Mass,
Column 55: Sensor_Temperature(Degrees_C),
Column 56: Ozone(Dobson),
Column 57: NO2(Dobson),
Column 58: last date processed, day
Column 59: last date processed, month
Column 60: last date processed, year
Column 61: Number_of_Wavelengths (7)
Column 62: 1642.8 nm
Column 63: 1020.8 nm
Column 64:   869.9 nm
Column 65:   675.0 nm
Column 66:   501.2 nm
Column 67:   441.2 nm
Column 68:   380.0 nm
Column 69:   338.7 nm