Compensation for cloud cover in the visible spectrum is achieved by just picking an image from some of the next satellite passes. Also, there are active illumin

Compensation for cloud cover in the visible spectrum is achieved by just picking an image from some of the next satellite passes. Also, there are active illumination imaging instruments (e.g. SAR) that can penetrate through clouds and see at night. Atmospheric correction however is really an issue and often results in distinct patches on the "satellite" view