SPOT HRV pushbroom arrangement.

• Uses thousands of CCDs (Charge-Coupled Devices) in a linear array — many more detectors than the few that MSS/TM used.
• Images a complete cross-track line in one look.
• PAN mode = panchromatic line; XS mode = multispectral lines (one linear array per band).
• A steerable mirror (view angle 4.13°) allows ±27° off-nadir pointing, producing stereo-pair imagery and a 3–5 day revisit at mid-latitudes.