The ISCEA observatory is a small satellite with a mass of under 150kg. SwRI’s ISCEA near-infrared (NIR) spectrograph instrument (ISpec) with parallel imaging and multi-object spectroscopy channels is designed to meet the ISCEA observatory science goal: to determine the history of star formation and its quenching in galaxies as a function of local density and stellar mass when the Universe was 3-5 Gyrs old (1.2<z<2.1). To achieve this, the ISpec instrument requirements are wavelength range 1.1 to 2-micron; a spectral resolving power of < 1000; <300 simultaneous object spectral acquisition; 2.8”× 2.8” “slit” size; emission line flux limit (5-sigma) of 3×10-17 erg/s/cm2; field of view of <= 0.27 deg2; and throughput <= 0.2.
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