SMALL SATELLITES

Subsystems

SUBSYSTEMS

Thanks to the long experience in the design and development of space systems, a wide range of small satellite subsystems are designed by Sitael to satisfy the requirements of our main customers.

Sensors and Actuators small

AOCS & GNC

SITAEL AOCS & GNC systems range from Sun Sensors with an accuracy of 0.1° to Earth Sensors that work in the TIR region (7.5-14 μm) and able to provide roll and pitch angles with a foreseen accuracy of 1° @ 8 Hz, from Reaction/Momentum Wheels up to Cold Gas Micropropulsion System based on MEMS microdevice.

POWER GENERATION

SITAEL power generation systems are conceived for small and low-costs satellites. Our solar array are based on space-grade Gallium arsenide (GaAs) high efficiency triple junction solar cells technology. Carbon fiber sandwich panels with Nomex® honeycomb core provide a reliable, efficient and lightweight substrate for the cells, thanks to the low coefficient of thermal expansion.

Sitael Space Detail
COTS BASED AVIONICS

COTS-based AVIONICS

SITAEL designs and produces innovative solutions based on COTS components. ADCS and OBDH boards are based on ST Cortex M4 microcontroller, 128Kb Flash, 72+ MIPS. Both OBDH and ADCS controllers are in cold redundancy and the software architecture is based on a realtime operating system. Also the redundant transceiver boards are based on ST Cortex M4 microcontroller and CC1010 RF transceivers for UHF VHF communication.