The band identification string in the camera is supplied for convenience, but is not used in aligning images. The format is (band center)-(band width), and it reflects the value of the narrow band pass filter in front of the sensor. For example, a filter centered at 800 nanometers that is 20 nanometers wide, is usually labeled "800-20". Thermal bands are labeled "THERMAL", and UV bands are labeled "380-20".