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.
Key figurescomparable across the catalogue
- Mass
- 0.31 kg
- Power
- 0.9 W
- Largest dimension
- 141 mm
- Design life
- 5 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- 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.