Fine Spinning Sun Sensor (±64°)

The Redwire Fine Spinning Sun Sensor provides better accuracy and resolution than the Miniature Spinning Sun Sensor.

The Redwire Fine Spinning Sun Sensor± 64° provides better accuracy and resolution than the Miniature Spinning Sun Sensor. The unit is Rad hard to 100 krad (Si).

Redwire Spinning Sun Sensors are uniquely designed to provide sun aspect angle and sun crossing pulses for spinning spacecraft. This information is used to determine Spin rate and spin axis orientation relative to the sun.

This redundant system consists of one optical head per redundant electronics channel. It is used for attitude determination of spinning spacecraft, sun acquisition, and fail-safe recovery.

DOWNLOAD SPEC SHEET

KEY SPECIFICATIONS

Applications
  • Attitude Determination of Spinning Spacecraft
  • Sun Acquisition
  • Fail-Safe Recovery
Parameters
Field of View

±64° Fan-shaped (each sensor)

Accuracy

Sun Pulse
± 0.1° at 0°
± 0.3° at 40°
± 0.6° at 64°

Aspect Angle
± 0.1° 0° to 40°
± 0.25° 40° to 64°

Size

Sensor
2.6″×1.3″×1.0”
(66×33×25 mm)

Electronics
2.0″×3.2″×3.5″
(51×82×89 mm)

Weight

Sensor
0.24 lb
(109 g) nominal

Electronics
1.05 lb to 1.6 lb
(475 g to 725 g)

Input Power

28 ± 7 VDC (other ranges available)

(Typical power dissipation 0.4 W)

Output

Sun Pulse (one per revolution)
Parallel Coarse Data
Fine Data (Vsine, Vcosine, Vbias)

Configuration
Number of Measurement Axes

1 Plus Sun pulse (each sensor)

Redundant System

2 Sensors (with redundant electronics)