PST4S-H1 Star Tracker
TY-Space Technology
The PST4S-H1 is a low-power-consumption, pico-class star tracker customizable for various small-satellite applications, part of a TY-Space product line with over 100 units successfully launched and operating on orbit.
Typed specifications63 values
Discloses 9 of 12 fields engineers filter by in this category (category median 8).
- Accuracy, cross-boresight
- 3 arcsec @0.1°/s Pointing · datasheet p.1 5 arcsec @0.5°/s Pointing | 10 arcsec @1.0°/s Pointing | 3 arcsec 0.1°/s Pointing | 3 arcsec 0.1°/s, pointing, 3 sigma +5
- Mass
- 310 g datasheet p.2 310 g device weight 310±20g | 310 g
- Accuracy, about boresight (roll)
- 30 arcsec @0.1°/s Roll · datasheet p.1 50 arcsec @0.5°/s Roll | 100 arcsec @1.0°/s Roll | 30 arcsec 0.1°/s Roll | 30 arcsec 0.1°/s, roll, 3 sigma +5
- Envelope (L×W×H)
- 57x57x141 mm3 product page Φ100±1, Height: 141±2 envelope size
- Update rate
- 10 Hz min · datasheet p.1 10 Hz min · ≥10Hz
- Max tracking rate
- 3 °/s 3°/s: Trackable · datasheet p.2 0.1 °/s Pointing | 3 °/s Trackable | 0.5 °/s Pointing | 1 °/s Pointing
- Sun exclusion angle
- 35 ° Sun · datasheet p.1 35 ° min · Sun: better than 35°
- Lost-in-space acquisition time
- 2 s max · acquisition rate, max. ≤2s · datasheet p.2 2 s max · Lost-in-space acquisition | 5 s max · start-up time, better than 5s
- Supply voltage
- 5 V nom. · datasheet p.7 5 V | 4.8 V min · Safe Operating Voltage | 5.4 V max · Safe Operating Voltage | 5 V as published, mode unspecified +1
- Power consumption
- 0.9 W Operating · datasheet p.4 0.9 W operating state, 0.9±0.1 W per device
- Data interface
- RS-422 RS422, 115200bps, EIA-422-B · datasheet p.2
- Operating temperature
- -30 °C min · datasheet p.4 40 °C max | -40–40 °C as published, mode unspecified | 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
- 7 years datasheet p.1 7 years 1000km Orbit | 5 years as published, mode unspecified
- Configuration
- single unit datasheet p.3
- Connector
- J30J-31ZKWP3-J datasheet p.8
- Survival temperature
- -30 °C min · datasheet p.4 40 °C max | -30–40 °C storage temperature range
- Baffle
- integrated inner surface of the baffle is ultra black coating · datasheet p.5
- Earth exclusion angle
- 25 ° min · Earth: better than 25° · datasheet p.2
- Time-sync (PPS) input
- yes PPS input; SYNC pulse · datasheet p.12
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 supplier17 lines, in the manufacturer's own wording
- Dimensions (Sensor+Baffle)
- 57x57x141 mm3
- Mass (Sensor+Baffle)
- 310 g
- Optical design (Lens)
- Refractive
- Vibration (FM)
- Sine 13 g, random 12 grms
- Vibration (Qualification)
- Sine 16 g, random 18 grms
- Working temperature
- -40 to 40 C
- Radiation resistance
- 30 Krad [Si]
- Field of view
- 15x18 deg [effective]
- Update rate
- 10 Hz
- Dynamic performance
- 3 deg/s
- Sensitivity
- 5.8 Mv, Go.Ref star
- Exclusive angle (Sun)
- < 35 deg
- Exclusive angle (Earth)
- < 25 deg
- Data interface
- RS422/CAN
- Power consumption
- 0.9 W
- Supply voltage
- 5 V
- Design life
- 5 years
About
The PST4S-H1 Star Tracker is a compact ‘pico’ star tracker designed for attitude determination on small satellites, featuring low power consumption (0.9W) and a compact sensor+baffle package (57x57x141 mm3, 310g), suited for CubeSats and other mass/power-constrained spacecraft. It uses a refractive optical design, offers a 15×18 degree effective field of view, 10 Hz update rate, and 3 deg/s dynamic performance, allowing attitude lock under moderate slewing. It withstands vibration loads (13g sine/12 grms random FM; 16g sine/18 grms random qualification), operates from -40C to 40C, and tolerates radiation up to 30 Krad [Si]. It communicates via RS422/CAN, runs on 5V input, and has a 5-year rated lifetime. TY-Space notes over 100 sets of PST-series star trackers have been launched and are operating on orbit, with customized versions available.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.