locality_id - If provided by the user, it represents the locality ID; if not provided, it is identical to the logger's serial number.
logger_name - Logger name.
serial_number - Serial number of the logger, either provided by the user or automatically detected from the file name or header.
logger_type - Logger type.
start_date - The oldest record on the logger.
end_date - The newest record on the logger.
step_seconds - Time step of the record series (in seconds).