Licel Raw Data Format

The header lines (ASCII format) have a length of 80 characters, where the two last characters are <CRLF>. The header lines are followed by the data in binary format. The first header line contains the filename,

• which begins with a letter.
• two digits showing the years in the century
• the month (hexadecimal, one digit),
• the day (decimal, two digits),
• the hour (decimal, 24 hours per day, two digits),
• a period (.),
• the minute (decimal, two digits),
• the seconds (decimal, two digits),
• and the first 2 decimal places of the seconds (decimal, two digits).

• measurement site (8 characters),
• measurement start time (dd/mm/yyyy hh:mm:ss),
• measurement finish (dd/mm/yyyy hh:mm:ss),
• the altitude above sea level (four digits (meter)),
• the longitude (four digits (including - sign). one digit for decimal grades)
• the latitude (four digits (including - sign). one digit for decimal grades).
• the zenith angle (two digits in degrees)

• the number of laser shots of the type 1 laser (integer 7 digits),
• the repetition rate of the Type 1 laser (integer 5 digits),
• the number of laser shots of the type 2 laser (integer 7 digits),
• the repetition rate of the Type 2 laser (integer 5 digits)
• and the number of the following data sets (integer 2 digits) are given.

The header lines specific to the data sets contain:

• data set active (1/0). Non-active data sets will not be written.
• photon counting I Analog (1/0)
• laser type (1/2)
• number of data points (5 digits)
• the number 1
• High voltage of the PM (V) (four digits in Volt)
• bin width (in meters four digits including decimal separator (.) and decimal places)
• wavelength (nm) in nm, five digits followed by a period (.)
• polarization status 0 - none p - parallel s - perpendicular
• 0 0 00 000 (backward compatibility)
• the number of bits of the ADC (2 digits)
• the number of shots (6 digits)
• discriminator level or data range of the ADC (one digit period 4/3 digits)
• device identificator (BT = analog dataset, BC = photon counting, the number is the address of the transient recorder as a hexadecimal number)