MSS Irene

MSS Irene

MSS Irene
Function	Multispectral Imaging Satellite
Place of origin	Nouvelle Alexandrie
Designed	Minerva Space Systems
Manufacturer	Minerva Space Systems
Dimensions	3.6 m x 0.5 m x 1.1 m
Launch Mass	100 kg
Electrical Power	250 W
Attitude control	3-axis momentum biased
Propulsion	12x monopropellant hydrazine thrusters, 1 N each
Telemetry	X/S Band
Instruments	Multispectral Imager (0.35 m telescope 0.75 m resolution, 8 spectral bands) Band 1 Coastal Blue (0.40 - 0.45 µm) Band 2 Blue (0.45 - 0.51 µm) Band 3 Green (0.51 - 0.58 µm) Band 4 Yellow (0.58 - 0.62 µm) Band 5 Red (0.63 - 0.69 µm) Band 6 Red edge (0.71 - 0.74 µm) Band 7 Near-IR 1 (0.77 - 0.89 µm) Band 8 Near-IR 2 (0.86 - 1.04 µm)
Orbital parameters	Orbit height: 500 km Orbit inclination: 51.64 degrees Design life: 2 years

The MSS Irene is a microsatellite for electro-optical imaging that is produced by Javelin Industries through its space subsidiary Minerva Space Systems. Its purpose is to provide on-demand multispectral imagery with a resolution that is useful for tactical purposes. It can accomplish this by directly downlinking the imagery to military commanders and intelligence centers within a short time frame (<10 minutes) of receiving the task, without relying on a satellite or ground-based relay network.