OBJECT = COLUMN NAME = HEADER_FLAG DATA_TYPE = CHARACTER UNIT = 'N/A' START_BYTE = 1 BYTES = 4 DESCRIPTION = "ASCII characters 'HEAD', indicating that this record is the header record." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LINE_SAMPLES DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 5 BYTES = 2 DESCRIPTION = "The number of samples in each image line." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BAND_LINES DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 7 BYTES = 2 DESCRIPTION = "The number of image lines in each band." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BANDS DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BYTE = 9 BYTES = 1 DESCRIPTION = "The number of bands in the image file." END_OBJECT = COLUMN OBJECT = COLUMN NAME = DATA_TYPE DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BIT = 10 BITS = 1 DESCRIPTION = "Valid values are 1 (data type is BYTE), 2 (VAX INTEGER*2), 3 (VAX INTEGER*4), or 4 (VAX REAL)." END_OBJECT = COLUMN OBJECT = COLUMN NAME = BAND_PRESENCE_FLAG DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BIT = 11 BITS = 34 DESCRIPTION = "A logical value indicating the presence of a given band. There is one byte per band containing the band number if the band is present. The values are presented in the order that the bands appear in the file." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ACQUISTION_MONTH DATA_TYPE = UNSIGNED_INTEGER UNIT = MONTHS START_BYTE = 45 BYTES = 1 DESCRIPTION = "The number of the month in which the data were acquired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ACQUISTION_DAY DATA_TYPE = UNSIGNED_INTEGER UNIT = DAYS START_BYTE = 46 BYTES = 1 DESCRIPTION = "The day of month when the data were acquired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ACQUISTION_YEAR DATA_TYPE = UNSIGNED_INTEGER UNIT = YEARS START_BYTE = 47 BYTES = 1 DESCRIPTION = "The year in which the data were acquired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ACQUISTION_RATE DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BYTE = 48 BYTES = 1 DESCRIPTION = "The rate of data acquistion." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ACQUISTION_TIME DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BIT = 49 BITS = 4 DESCRIPTION = "The time of acquistion of the data. The time is given as hours, minutes, and seconds in UTC. From left to right, the first two digits are the hours, the second two digits are the minutes, and the last two digits are the seconds." END_OBJECT = COLUMN OBJECT = COLUMN NAME = AIRCRAFT_ALTITUDE DATA_TYPE = VAX_INTEGER UNIT = FEET START_BIT = 53 BITS = 4 DESCRIPTION = "The altitude of the aircraft." END_OBJECT = COLUMN OBJECT = COLUMN NAME = AIRCRAFT_HEADING DATA_TYPE = VAX_INTEGER START_BYTE = 57 UNIT = DEGREES BYTES = 2 DESCRIPTION = "The aircraft heading in degrees from true North." END_OBJECT = COLUMN OBJECT = COLUMN NAME = AIRCRAFT_SPEED DATA_TYPE = VAX_INTEGER UNIT = KNOTS START_BYTE = 59 BYTES = 2 DESCRIPTION = "The aircraft speed in knots." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FLIGHT_LINE_NUMBER DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 61 BYTES = 2 DESCRIPTION = "The flight line number along which the data were acquired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FLIGHT_RUN_NUMBER DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 63 BYTES = 2 DESCRIPTION = "The run number for the given flight line during which the data were acquired." END_OBJECT = COLUMN OBJECT = COLUMN NAME = RECORDS DATA_TYPE = VAX_INTEGER UNIT = RECORDS START_BYTE = 65 BYTES = 4 DESCRIPTION = "The number of data records in the file, which is the number of image lines times the number of bands." END_OBJECT = COLUMN OBJECT = COLUMN NAME = INSTRUMENT_TEMPERATURE DATA_TYPE = VAX_INTEGER UNIT = DEGREES START_BYTE = 69 BYTES = 2 DESCRIPTION = "An integer number indicating the instrument temperature in degrees celsius." END_OBJECT = COLUMN OBJECT = COLUMN NAME = ROW_PREFIX_BYTES DATA_TYPE = VAX_INTEGER UNIT = BYTES START_BYTE = 71 BYTES = 2 DESCRIPTION = "The number of prefix bytes in a data record." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CALIBRATION_FLAG DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BYTE = 73 BYTES = 1 DESCRIPTION = "A data calibration flag. A value of 1 is true and 0 is false." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CALIBRATION_MONTH DATA_TYPE = UNSIGNED_INTEGER UNIT = MONTHS START_BYTE = 45 BYTES = 1 DESCRIPTION = "The number of the month in which the instrument was calibrated." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CALIBRATION_DAY DATA_TYPE = UNSIGNED_INTEGER UNIT = DAYS START_BYTE = 46 BYTES = 1 DESCRIPTION = "The day of month when the instrument was calibrated." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CALIBRATION_YEAR DATA_TYPE = UNSIGNED_INTEGER UNIT = YEARS START_BYTE = 47 BYTES = 1 DESCRIPTION = "The year in which the instrument was calibrated." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CALIBRATION_SOURCE_ID DATA_TYPE = CHARACTER UNIT = 'N/A' START_BYTE = 77 BYTES = 6 DESCRIPTION = "The calibration source." END_OBJECT = COLUMN OBJECT = COLUMN NAME = CALIBRATION_FACTOR DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 83 BYTES = 2 DESCRIPTION = "The radiometric calibration factor." END_OBJECT = COLUMN OBJECT = COLUMN NAME = NOTE DATA_TYPE = CHARACTER UNIT = 'N/A' START_BYTE = 85 BYTES = 60 DESCRIPTION = "A comment about the image. It usually contains the name of the site being imaged." END_OBJECT = COLUMN OBJECT = COLUMN NAME = INSTRUMENT_OFFSET DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 145 BYTES = 2 DESCRIPTION = "An integer number indicating the instrument offset." END_OBJECT = COLUMN OBJECT = COLUMN NAME = GAIN_MODE_ID DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 147 BYTES = 2 DESCRIPTION = "An integer number indicating the instrument gain." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMISSION_ANGLES DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BYTE = 149 BYTES = 1 DESCRIPTION = "The number of emission angles in the image scene." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMISSION_ANGLE_INCREMENT DATA_TYPE = UNSIGNED_INTEGER UNIT = DEGREES START_BYTE = 150 BYTES = 1 DESCRIPTION = "The emission angle step between each image of the scene in degrees." END_OBJECT = COLUMN OBJECT = COLUMN NAME = EMISSION_ANGLE DATA_TYPE = VAX_INTEGER UNIT = DEGREES START_BYTE = 151 BYTES = 2 DESCRIPTION = "The emission angle of the image." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LAMP_LEVELS DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BYTE = 153 BYTES = 1 DESCRIPTION = "The number of lamp levels present." END_OBJECT = COLUMN OBJECT = COLUMN NAME = LAMP_LEVEL_FLAG DATA_TYPE = UNSIGNED_INTEGER UNIT = 'N/A' START_BYTE = 154 BYTES = 19 DESCRIPTION = "A flag indicating the presence of lamp levels." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FIRST_LINE DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 173 BYTES = 2 DESCRIPTION = "The starting line of the data subset." END_OBJECT = COLUMN OBJECT = COLUMN NAME = FIRST_LINE_SAMPLE DATA_TYPE = VAX_INTEGER UNIT = 'N/A' START_BYTE = 175 BYTES = 2 DESCRIPTION = "The starting sample of the data subset." END_OBJECT = COLUMN OBJECT = COLUMN NAME = UNUSED DATA_TYPE = CHARACTER UNIT = 'N/A' START_BYTE = 177 BYTES = 858 DESCRIPTION = "Unused bytes." END_OBJECT = COLUMN