Operational Linescan System—(Abbreviated OLS.) The visible and infrared  imager carried aboard the DMSP  satellites, which provides a variety of moderate (2.7 km at nadir) and high-resolution (0.6 km at nadir) imagery.
    During daytime passes, the OLS is normally configured to collect high-resolution visible imagery in conjunction with a single channel of moderate-resolution IR imagery. During nighttime passes the sensor configuration is usually reversed. Nighttime visible data are obtained with a high-performance photomultiplier tube that allows viewing in visible wavelengths of clouds and land areas illuminated by a quarter moon or brighter. City lights and the aurora can also be viewed quite clearly, with or without a moon.


Status: Operational
Satellite DMSP F-18
Launch Date: October 2009
Type: Multi-purpose imaging Vis/IR radiometer 
Measurements and Applications: Day and night cloud cover imagery

Technical Characteristics

Resolution: 0.56 - 5.4 km
N. of Bands: 3

VIS - NIR: 0.4 - 1.1 µm
TIR: 10.0 - 13.4 µm

Swath: 3000 km