Table 2. Draft specifications of optical telescope assembly (OTA) for Korea Space Telescope

Item	Specification (TBC)
Optical configuration	Korsch type
Diameter of primary mirror	3.5 m (outer diameter)2.9 m (inner diameter)
Segment size (edge to edge)	700 mm
Number of segments	18
Wavelength coverage	0.3–1.0 μm (2.5 μm)
Field of view	10–30 arcmin
Focal length	73 m (F/20)
Collection area	8.06 m2 (segment area)6.6 m2 (inner circle area)