ACSS
Solar MEMS Technologies
Advanced Coarse Sun Sensor for sun-tracking and attitude determination, flight-proven since 2019 with hundreds of units delivered.
Technical specifications
- Interface
- Analog
- Flight mode
- Yes
- Engineering mode
- Yes
- Field of View
- ±60°, customizable
- Supply voltage
- 1.5–13 V, 3 mA
- Operating temperature
- -45°C to +85°C
- Radiation test
- 200 krad (gamma), 8e11 10 MeV protons
- Mechanical test
- Shock 2000 g; 18.3 g @ 20–2000 Hz random
- Endurance test
- 600 cycles -55 to +105°C; 2000 h at 125°C
- EMC/ESD
- ECSS-E-ST-20-07C, MIL-STD-461F
- Flight heritage
- Flight-proven since 2019, hundreds of units delivered
About
The ACSS (Advanced Coarse Sun Sensor) is a two-axis device for sun-tracking and attitude determination. It measures the incident angle of sunlight in two orthogonal axes and is designed for the highest reliability and radiation hardness for demanding LEO, MEO and GEO missions. ACSS technology has been flight-proven since 2019 with hundreds of flight units delivered; its manufacturing process has been industrialized for mass production. Both flight and engineering models are available. The ACSS is compatible with a wide supply voltage range (1.5–13 V) and is qualified to ECSS-E-ST-20-07C and MIL-STD-461F electromagnetic standards.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.
