PST3S-K4 Star Tracker
TY-Space Technology
A micro-miniature, radiation-resistant star tracker with a deployment baffle, providing high-accuracy attitude determination for small satellites.
Typed specifications51 values
Discloses 9 of 12 fields engineers filter by in this category (category median 8).
- Accuracy, cross-boresight
- 5 arcsec datasheet p.1 5 arcsec 0.1°/s, pointing, 3 sigma | 8 arcsec 0.5°/s, pointing, 3 sigma | 10 arcsec 1.0°/s, pointing, 3 sigma | 5 arcsec 3σ, Pointing @0.1°/s +2
- Mass
- 60 g ±10g · datasheet p.2 60 g device weight 60±10g
- Accuracy, about boresight (roll)
- 50 arcsec datasheet p.1 50 arcsec 0.1°/s, rolling, 3 sigma | 80 arcsec 0.5°/s, rolling, 3 sigma | 100 arcsec 1.0°/s, rolling, 3 sigma | 50 arcsec 3σ, Rolling @0.1°/s +2
- Envelope (L×W×H)
- Baffle Folded: 40×40×34.6 (mm³) product page Φ40±1, Expand Height: 34.6±1, Height When Unfolded: 75.7±2 envelope size | Baffle Deployed: 40×40×75.7 (mm³)
- Update rate
- 10 Hz ≥ · datasheet p.1 10 Hz min · ≥10Hz
- Max tracking rate
- 2 °/s 2°/s: Trackable · datasheet p.2 2 °/s Trackable
- Sun exclusion angle
- 35 ° Sun · datasheet p.1 35 ° min · Sun: better than 35°
- Lost-in-space acquisition time
- 2 s max · datasheet p.1 2 s max · acquisition rate, max. ≤2s | 5 s max · start-up time, better than 5s
- Supply voltage
- 5 V nom. · voltage stability 5% · datasheet p.7 5 V | 5 V as published, mode unspecified
- Power consumption
- 0.8 W ±0.1, Long Term Operating Mode · datasheet p.6 0.8 W ±0.1, Operating State | 0.9 W as published, mode unspecified | 0.8 W operating state, 0.8±0.1 W per device
- Data interface
- RS-422 datasheet p.1 RS-422 RS422/CAN | CAN | CAN RS422/CAN
- Operating temperature
- -40–40 °C as published, mode unspecified · vendor page (catalogue a 15–25 °C best operating temperature range, 20±5 | -30–40 °C operating temperature range
- Radiation tolerance (TID)
- 30 krad as published, mode unspecified · vendor page (catalogue a
- Design lifetime
- 5 years @500km Orbit · datasheet p.1 5 years 500km Orbit
- Configuration
- single unit datasheet p.3
- Connector
- J70A-2H2-025-231-TH datasheet p.8
- Survival temperature
- -30–40 °C storage temperature range · datasheet p.5
- Baffle
- integrated deployable (ejectable) baffle, inner surface ultra black coating · datasheet p.5
- Earth exclusion angle
- 30 ° min · Earth: better than 30° · datasheet p.2
- Time-sync (PPS) input
- yes PPS input, single-ended or differential; SYNC pulse · datasheet p.14
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 supplier20 lines, in the manufacturer's own wording
- Dimensions (Sensor+Baffle)
- Baffle Folded: 40×40×34.6 (mm³)
- Dimensions (Sensor+Baffle) (deployed)
- Baffle Deployed: 40×40×75.7 (mm³)
- Mass (Sensor+Baffle)
- 60 g
- Optical design (Lens)
- refractive
- Vibration (FM)
- sine 13 g, random 12 grms
- Vibration (Qualification)
- sine 16 g, random 18 grms
- Working temperature
- -40~40 (℃)
- Radiation resistance
- 30 Krad [Si]
- Field of view
- 14°×15.8° [effective]
- Attitude accuracy (pointing)
- <5″ [3σ]
- Attitude accuracy (rolling)
- <50″ [3σ]
- Update rate
- 10 Hz
- Dynamic performance
- 2°/s
- Sensitivity
- 5.8Mv, Go.Ref star
- Exclusive angle (Sun)
- <35°
- Exclusive angle (Earth)
- <30°
- Data interface
- RS422/CAN
- Power consumption
- 0.9 W
- Supply voltage
- 5 V
- Design life
- 5 years
About
The PST3S-K4 is a micro-miniature star tracker featuring a deployable baffle for stray-light suppression, designed for space-saving installation on small satellites. It uses a refractive lens optical design and offers low power consumption of 0.9W. The unit is radiation resistant, tolerating 30 Krad [Si] total dose. With the baffle folded, the sensor+baffle assembly measures 40×40×34.6mm³, expanding to 40×40×75.7mm³ with the baffle deployed, and has a mass of 60g. It has an effective field of view of 14°×15.8° and provides pointing/rolling attitude accuracy of <5″/<50″ (3σ). The update rate is 10 Hz, with dynamic performance up to 2°/s and sensitivity of 5.8Mv (Go.Ref star). Exclusion angles are <35° from the Sun and <30° from the Earth. It communicates via RS422/CAN data interface, operates on a 5V input voltage, and functions across a working temperature range of -40 to 40°C. Vibration tolerance is sine 13g/random 12 grms (flight model) and sine 16g/random 18 grms (qualification). The rated life time is 5 years.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.