ocr: LASCO INSTRUMENT The LASCO instrument is a set of three coronagraphs that image the solar corong from 1.1 - to 32 solar radii. CI coronagraphs cover the distance from 1.1 to. - 3.2 solar radii, C2 from 1.5to6.0 and C3 from 3.7to32solar radii. So totally LASCO instrument covers a range of 1.1 to 32 solar radii without gaps. High definition CCD cameras in each telescope provide detailed images with exceptional dynamic range, while large digital memo- ries and a high-speed microprocessor support extensive on-board image processing and image data compression by large factors, that will allow trans ...