I don't see any mention about the format/size of the sensors in your replies. They are 4 full frame sensors butted up next to each other to create a roughly 72x48mm area

This site has some more specs about the latest versions:

• Large area, with around 4k(H) by 2k(V) 15 micron pixels
• Full frame imaging CCD designed to operate in Inverted Mode for low dark signal.
• Features enhanced Ultra-Violet quantum efficiency and back-illumination to give a very broad waveband response. The typical >quantum efficiency is 50% at 250nm and 65% at 500nm.
• Designed and packaged for assembly in close-butted pairs, typically 250µm (with a specification at 340µm) per chip, i.e.~500µm if butted, thus creating a ~4k square image area.
• The two high responsivity and very low noise output amplifiers, typically ~2.5 e-rms at 50kHz, on each sensor, enable imaging of feint objects.
• A parallel charge injection structure permits mitigation against radiation effects of the space environment and a supplementary “notch” or mini-channel is included to further reduce the impact of irradiation when imaging at small signal levels. The readout register has a gate controlled dump drain to allow fast dumping of unwanted data.