The HYDRA ACCESS from Sodern is a Star Tracker with a slew rate of 5-8 deg/sec and has a bias of less than 11 arcsec. This star tracker requires a supply voltage of 5 V and has a power consumption of 0.7 W (optical head). It features HAS-2 CMOS sensor with Thermo-Electric Cooler (TEC) and software integrated into the spacecraft processor. The star tracker has an optical head vibration of 30g RMS and an output rate of 8 Hz. It has a mass of 1.4 Kg (optical head) and measures 147 (Diameter) x 283 mm. The HYDRA ACCESS has a lifetime of up to 10 years in LEO and 18 years in GEO and is ideal for telecommunications and earth observation satellites.
