The Micro Sun Sensor (MSS) is the smallest sun sensor in Redwire's portfolio. It provides a cosine output of the sun angle for small satellite applications and can be used for a variety of spacecraft missions requiring sun detection.

The product is characterized by:

  • Low mass
  • Low power requirement
  • Sensor that provides UV and RAD tolerant device for sun angle applications

The output of the Micro Sun Sensor is analog voltage range from 0 to 2.1 V, which can be fed into a microprocessor ADC. A single sun sensor can provide sun presence information. A group of sun sensors appropriately mounted can provide coarse sun angle data and polarity.

Sun Sensors are export controlled through an ECCN (Export Control Classification Number) issued by the United States Department of Commerce, ECCN 7A104. Export shipment requires successful application for an export license. Redwire is AS9100D/ISO 9001 certified.

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Last updated: 2021-11-22

Micro Sun Sensor



< 2 g (w/o wires, w/glass)
23 mm
15.3 mm
6 mm
< 15 mW
supply voltage
3.3 V
5 V
field of view
± 85° minimum


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