Advanced Coarse Sun Sensor (ACSS)

Vendor profile

Overview

The Advanced Coarse Sun Sensor (ACSS) by Solar MEMS offers high reliability and radiation hardness for the most demanding LEO, MEO and GEO missions. The ACSS is a device for sun-tracking and attitude determination. This sensor measures the incident angle of sun ray in two orthogonal axes, providing a high sensitivity based on the geometrical dimensions of the design.

ACSS technology has flight heritage since 2019 with hundreds of flight units delivered, and its manufacturing process has been developed and industrialized for mass production requested for satellite constellations. ACSS is a highly suitable sun sensor for satellite constellations and demanding missions due to its redundancy, reliability and hardness.

Key features of the ACSS include:
- 2 orthogonal axes
- Analog, 15-pin micro connector electrical interface
- Aluminum 6082, alodine + black anodizing housing
- Manufacturing capacity of 100 ACSS per month
- Each ACSS is calibrated, evaluated and tested
- Quality control: > 50 inspection points/KC
- EMC/ESD: ECSS-E-ST-20-07C, MIL-STD-461F
- Reliability: 8 FIT @ 30 C
- Flight heritage: > 500 years accumulated time in orbit without failures

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Overview

Name: Advanced Coarse Sun Sensor (ACSS)
Vendor: Solar MEMS Technologies
Subsystem: ACDS Subsystem
Component Type: Sun Sensor
Form Factor: SmallSat
Heritage: Yes

Vendor Details

Name: Solar MEMS Technologies
Website: http://www.solar-mems.com/
Founded: 2009
Summary: Solar MEMS Technologies is a technological-based company specialized in the development of Sun Sensors for space applications and other high technology industries. Our Sun Sensor on a Chip technology is based on MEMS (Micro-electro-mechanical-systems) fabrication processes to achieve highly integrated sensing structures at low cost for high accurate AOCS, sun-tracking and positioning systems. With customers in more than 50 countries and flight heritage since 2009, the company has thousands of sun sensors in orbit and is the supplier of many satellite constellations including OneWeb among others. Solar MEMS premises include state-of-the-art equipment and facilities for microsystems, optics, and electronics development and integration with industrialized clean room manufacturing capabilities and sun sensor assembly lines for high-volume production rates. Moreover, Solar MEMS offers different Optical Ground Support Equipment (OGSE) for sun sensor testing and engineering services, including design, development, manufacturing and implementation of customized devices and solutions. The company offers its engineering and consulting services to space companies for tailored electronic and mechanical designs, including integration processes and interface adaptations. Distributors: - AAC SpaceQuest (USA) - Satrec Initiative (South Korea)