End-to-End Image Simulator for Optical Imaging Systems: Equations and Simulation Examples

Table 3

Characteristics of HYPSEO Hyper-spectral and PAN cameras at 620 Km satellite altitude.

	Hyper-spectral camera			Pan camera
Parameters	VNIR band	Swir band		Pan band
Spectral Interval [nm]	400–1000	1000–2500		500–900
Average Spectral sampling [nm]	10	10		500–900
Swath [km]/FOV (°)	20/1.85		20/1.85	14/1.30	10/0.93	10/0.93
Spatial Sampling [m]	20	20	5	3.5	2.5	2.5
Useful Zone [km]	500		500
Spectral channels (max)	≈60	≈150	1
Aperture Diameter [mm]	150 (𝐹/3.7)		150 (𝐹/5.8)	150 (𝐹/8.3)	150 (𝐹/11.6)	300 (𝐹/5.8)
Detector pixel dimension [𝜇m]	18	18	7
Array dimension	1000×256	1000×256	4000×1
FPA type	Si on Hybrid CMOS	Cooled CMT on Hybrid CMOS	Si CCD
SNR at 𝜌=0.3 and SZA=60^∘	≈200	≈50	144	71	32	92