The main requirements are:
- Provision of high-resolution imagery with a GSD of < 1 m on a swath of 50 km
- Provide pan-sharpen imagery with simultaneous acquisition of panchromatic band (Pan) images and four-color band (MS) images
- Acquire stereo imagery from different view angles
- Enable the capability of image acquisition of any point in a wide area with pointing to achieve timely monitoring if a disaster occurs.