FSS-15 Fine Sun Sensor

FSS-15 is a minimized fine sun sensor with a high cost-performance ratio. It is designed to be mass-produced with stable quality. Moreover, a microcontroller is embedded in the FSS-15 for tabulated correction using an error table.

Therefore, the user can directly access the sun angles from digital interfaces. I2C and UART are two standard communication interfaces.

For the error table, every FSS-15 has a unique one, which will be measured before the shipment of the product to the user.

For less strict performance requirements, Tensor Tech also offers a coarse sun sensor: CSS-10.

The system achieved flight heritage in 2022.

Features

  • Digital-type Fine Sun Sensor
  • Pointing error: 0.1 deg (1 sigma)
  • Embedded firmware for radiation-caused transient error detection and recovery

Specifications

  • 2-axes digital sun sensor embedded with calibration error table and micro-controller
  • Embedded firmware for radiation-caused transient error detection and recovery
Specifications
Lead Time:
2 months
Pointing error:
0.1 deg (1 sigma)
Field of view (FOV):
+/- 60 deg
Field of view (FOV):
+/- 45 deg for optimal performance
Accuracy:
+/- 0.5 deg with 60 deg FOV (1-sigma)
Accuracy:
+/- 0.1 deg with 45 deg FOV (1-sigma)
Sampling rate:
2, 4, 8, and 16 Hz adjustable by user
Power consumption:
< 2 mA @ sampling
Idle power consumption:
< 0.5 mA
Dimensions:
22.00 × 15.00 × 5.26 mm
Mass:
< 4 g
Radiation tolerance:
> 10 krad
Interface:
I2C
Interface:
UART
Documents