Bradford Coarse Sun Sensor (CSS)
Bradford Space
Internally-redundant coarse sun sensor with full-sky 180×180° FOV, ±2° accuracy, 215 g, dual 9-pin D-sub interface, >100 kRad TID.
Typed specifications22 values
Discloses 6 of 8 fields engineers filter by in this category (category median 4).
- Accuracy
- 3 ° beyond central portion of the FOV (depends on choice for pyra… · datasheet p.2 1 ° on sensor boresight (BOL at ambient temp), without albedo | 1.5 ° on sensor boresight (throughout mission lifetime), without al… | 1.5 ° max · better than ± 1.5° (3 σ) on boresight, throughout mission lif… | 1 ° max · better than ±1.0° (3 σ) on boresight, BOL at ambient temp., w… +1
- Mass
- 215 g Baseline (no strap-on baffle) with rear cover · datasheet p.2
- Envelope (L×W×H)
- 110 x 110 x 30 mm3 (exclusive of strap-on baffles, bondpin and connectors) datasheet p.2 110 x 110 x 30 mm3 exclusive dimensions of extensions such as strap-on baffles, …
- Output type
- analog current mode · datasheet p.2 analog voltage mode | analog voltage mode (built-in resistors) or current mode
- Field of view
- 12 ° Range for linear output (values given for detector pyramid ti… · datasheet p.2 12 ° range for linear output approx. ±12° x ±12° (half-angle), pyr… | 90 ° max · Hemispherical | 90 ° max · hemispherical: can be up to ±90° x ±90° (half-angle) | 12 ° Range for linear output (values given for detector pyramid ti…
- Radiation tolerance (TID)
- 100 krad min · product page
- Sensor class
- coarse datasheet p.1
- Axes
- 2 four channels are needed to provide two-axis outputs · datasheet p.2
- Flight heritage
- Continuously in production since 1975 and applied in a variety of different applications with spacecraft in LEO, MEO, HEO, GEO, planetary and interplanetary orbits. datasheet p.1
- Output current at normal incidence
- 35 mA max · current mode up to about 35 mA · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier12 lines, in the manufacturer's own wording
- FOV
- 180 × 180°
- Accuracy
- ±2° (3σ) at BoL
- Resolution
- < 0.1°
- Noise equivalent angle
- Negligible
- Mass
- 215 g
- Power consumption
- 0 W (passive)
- Data interface
- Analogue currents or voltages
- Reliability figure
- 41 FIT @ 60°C per channel
- TID resilience
- > 100 kRad
- SEE resistance
- Insensitive to SEE
- Electrical interface
- Dual 9-pin D-sub connector
- Mechanical interface
- 4× M4 mounting holes
About
Bradford’s Coarse Sun Sensor (CSS) delivers a full 180×180° FOV with ±2° (3σ) accuracy at beginning of life and negligible noise equivalent angle. The 215 g unit features internal redundancy via dual 9-pin D-sub connectors, zero passive power draw, >100 kRad TID tolerance and insensitivity to SEE. Reliability of 41 FIT at 60°C per channel. Designed for spacecraft that cannot fail — suitable for full-sky acquisition.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.