Summary

The Redwire ±32° Digital Sun Sensor (DSS32) provides a large field of view with moderate accuracy and resolution. Each system consists of one or more optical heads, each of which provides two axes of sun angle data.

The DSS32 is typically used for medium accuracy attitude determination. Systems can be configured with one or more optical heads per electronics. The DSS32 is Rad hard to 100 krad (Si), making use of Hi-Rel components.

The configuration for the DSS32 is characterized by:

  • Number of measurement axes: 2 (each sensor)
  • Number of sensors: 2 (1 each redundant side)

The DSS32 output is a serial data stream consisting of two 10-bit data words (typically) plus one dedicated sun presence bit (note: one word per axis, each consisting of 9 bits of sun angle data, and 1 identity bit.)

The DSS32 has flight heritage on number of space missions, including:

  • Genesis
  • RHESSI
  • SCISAT-1
  • Multiple Commercial communications programs

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.

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Last updated: 2021-11-22

Digital Sun Sensor (±32°)

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Specs

9TRL
mass
0.3 kg (sensor)
0.99 kg (nominal electronics)
sensor length
96 mm
sensor width
94 mm
sensor height
53 mm
voltage
28 ± 7 V DC (other ranges available)
power dissipation
1 W typical
field of view
32° x 32° (each sensor)
accuracy
±0.1°
radiation tolerance
100 krad

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