Fine Spinning Sun Sensor (±64°)

Overview

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

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

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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)

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