Overall | Field of view | 120° circular view (~300 at 87 km altitude) |
Pixel field of view | 14 arcmin |
Integration time | 32 sec (10 sec per an image) |
Operating temperature | 23°C |
Filters | Background | 1,522.05 nm (FWHM ~1.74 nm) |
OH(3-1) P1(2) | 1,523.96 nm (FWHM ~2.03 nm) |
OH(3-1) P1(4) | 1,543.30 nm (FWHM ~1.83 nm) |
blocking filter | For dark frame |
Wideband glass | Sky condition monitoring with 2-sec exposure |
InGaAs FPA | Number of pixels | 640 × 512 |
Pixel size | 20 μm |
Quantum efficiency | > 0.85 (@ 0.9 – 1.7 μm) |
Operating temperature @ +20°C ambient | –80°C |
Readout rate | 2 MHz |
Dark current (e-/pixel/sec) | 15.82 @ 2 MHzLooking at cold target at –174°C (+99°K), high gain output |
Readout noise (e- rms) | 68.3 @ 2 MHzMeasured at 1 μs exposure, high gain output |
Conversion gain (e-/ADU) | 1.2 @ 2 MHz, High gain output |