The Redwire ± 64° Digital Sun Sensor (DSS64) features two measurement axes and five sensors (up to 8 sensors available). The unit is rad hard to 100 krad (Si) and is spaceflight proven.

Key applications of the DSS64 include:

  • Attitude determination
  • Sun acquisition
  • Solar array pointing
  • Fail-safe recovery

The DSS64 has flight heritage across the following space missions:

  • Advanced Composition Explorer
  • Cassini-Huygens
  • Transition Region and Coronal Explorer
  • Deep Space One
  • GOES-12
  • Mars Exploration Rover A
  • Mars Exploration Rover B
  • MErcury Surface, Space ENvironment, GEochemistry, and Ranging
  • Solar Terrestrial Relations Observatory
  • Mars Science Laboratory
  • Interface Region Imaging Spectrograph
  • Mars 2020
  • Double Asteroid Redirection Test
  • Magellan
  • Mars Pathfinder

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

Digital Sun Sensor (±64°)



0.25 kg (sensor)
0.29 to 1.1 kg (nominal electronics)
sensor length
81 mm
sensor width
81 mm
sensor height
20 mm
28 ± 7 V DC (other ranges available)
power dissipation
0.4 W typical
field of view
128° x 128° (each sensor)
4π sr (achieved with 5 sensors)
transition accuracy
radiation tolerance
100 krad


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