Solar MEMS Technologies

Updated 17 Jul 2026
Manufacturer Spain Listed
11 Products
17 Years Active
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About Solar MEMS Technologies

Solar MEMS Technologies S.L. was founded in 2009 as a spin-off from the University of Seville, commercializing MEMS (Micro-Electro-Mechanical Systems) technology for space applications. The company develops and manufactures highly miniaturized sun sensors and star trackers that enable precise attitude determination for nanosatellites, microsatellites, and larger spacecraft.

The company offers a broad portfolio ranging from coarse analog sun sensors to high-accuracy digital sun sensors and star trackers. Their products are qualified for space operation and have accumulated significant flight heritage on missions operated by NASA, ESA, JAXA, and CNES. Solar MEMS sensors are particularly popular in the CubeSat and small satellite sector due to their compact form factor, low mass, and low power consumption.

Solar MEMS Technologies is certified under ISO 9001 and follows ECSS standards for space product development. Their customer base spans commercial satellite operators, research institutions, and government space agencies worldwide.

Milestones

  • 2019 CSS sun sensor technology achieves flight heritage; hundreds of flight units delivered
  • 2023 nanoST and MicroST star trackers enter production for nanosatellite and microsatellite missions

Products

11
Flight-proven

The Advanced Coarse Sun Sensor (ACSS) is a highly reliable and radiation-hardened device for sun-tracking and attitude determination in space missions, measuring sun ray incident angles in two orthogonal axes.

1 12
Flight-proven

High-accuracy digital sun sensor from Solar MEMS, immune to Earth albedo, with sub-millisecond Sun imaging and plug & play operation.

3 17
Flight-proven

Quad-thermopile horizon sensor for nadir vector determination and attitude control on nanosatellites and microsatellites.

1 11
Flight-proven

High-precision star tracker for microsatellites with <6 arcsec XY accuracy, multi-camera support and LEO/MEO/GEO qualification.

1 13

The Nano Sun Sensor on a Chip (NanoSSOC) is a two-axis, low-cost sun sensor known for high accuracy in sun-tracking, pointing, and attitude determination, measuring incident sun ray angles in two orthogonal axes.

1 5
Flight-proven

Two-axis MEMS-based analog sun sensor for CubeSats and nanosatellites with ±60° field of view.

1 9
Flight-proven

A two-axis, low-cost digital sun sensor on a chip for high-accuracy sun-tracking, pointing, and attitude determination on nanosatellite platforms.

3 7
Flight-proven

High-accuracy digital fine sun sensor for nanosatellites, providing two-axis sun vector measurement with MEMS technology and SPI/UART interface.

1 7
Flight-proven

Compact plug-and-play star tracker for nanosatellites with <40 arcsec XY accuracy and 15° field of view.

1 12
Flight-proven

MEMS-based analog fine sun sensor with ±60° FOV, calibrated with look-up table, for high-accuracy attitude determination.

1 9
Flight-proven

MEMS-based digital sun sensor on a chip that measures the two-axis incidence angle of sunlight for accurate sun-tracking and spacecraft attitude determination.

3 11

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