Bradford Redundant Cosine Sun Sensor (COSS-R)
Bradford Space
Self-redundant cosine sun sensor, 160×160° FOV, ±3° OBC-limited accuracy, 15 g ultralight, 0 W passive, >100 kRad TID.
Typed specifications18 values
Discloses 6 of 8 fields engineers filter by in this category (category median 4).
- Accuracy
- 3 ° typically ±3, sun vector from CoSS-R suite, with on-board tem… · datasheet p.2 3 ° plus/minus, if on-board corrections are made for sun sensor t…
- Mass
- 15 g 15±2 grams (exclusive cable) · datasheet p.2 15 g exclusive cable
- Envelope (L×W×H)
- 45 x 37 x 6 mm3 ( inclusive cable fixation provisions) datasheet p.2
- Output type
- analog datasheet p.2
- Field of view
- 180 ° Minimum operational FOV · datasheet p.2 180 ° min · minimum operational FOV, full cone angle (±90°)
- Power consumption
- nil CoSS-R is passive · datasheet p.2
- Operating temperature
- -55–115 °C Qualification · datasheet p.2
- Radiation tolerance (TID)
- 100 krad min · product page
- Sensor class
- coarse datasheet p.1
- Axes
- 2 datasheet p.2
- Random vibration
- 34 g RMS qualification random vibration · datasheet p.2
- Satellite class
- GEO qualified for long GEO, MEO and LEO missions · datasheet p.1
- Shock qualification
- 2 600 g qualification shock · datasheet p.2
- Sensing element
- photodiode (cosine) dual chip detectors, approximate cosine response · datasheet p.1
- Output current at normal incidence
- 35 mA max · sun induced analog current up to about 35 mA per detector · 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
- 160 × 160°
- Accuracy
- ±3° (3σ) OBC-limited
- Resolution
- < 0.1°
- Noise equivalent angle
- Negligible
- Mass
- 15 g
- Power consumption
- 0 W (passive)
- Data interface
- Analogue current or voltage
- Reliability figure
- 5 FIT @ 50°C per device (self-redundant design improves reliability)
- TID resilience
- > 100 kRad
- SEE resistance
- Insensitive to SEE
- Electrical interface
- Flying leads
- Mechanical interface
- 3× M2.5 mounting holes
About
Bradford’s Redundant Cosine Sun Sensor (COSS-R) provides internal redundancy for mission-critical attitude determination in an ultralight 15 g package. Same 160×160° FOV and ±3° (3σ) OBC-limited accuracy as the CoSS, with passive analogue current or voltage output, >100 kRad TID resilience, and insensitivity to SEE. Ideal for missions where sensor failure is not acceptable.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.