Sagitta Star Tracker
arcsec
The Sagitta star tracker is arcsec’s standard, fully autonomous star tracker designed to fit in a CubeSat. It features an integrated baffle to reduce stray light effects and delivers arc second range pointing accuracy. The custom algorithms are optimized for accuracy, robustness, and low computational cost. Sagitta achieves a cross-boresight accuracy of 2″ (1σ) and […]
Typed specifications19 values
Discloses 8 of 12 fields engineers filter by in this category (category median 8).
- Accuracy, cross-boresight
- 2 arcsec cross-boresight, 1 sigma · datasheet p.1 10 arcsec
- Mass
- 270 g datasheet p.1
- Accuracy, about boresight (roll)
- 10 arcsec around boresight, 1 sigma · datasheet p.1
- Envelope (L×W×H)
- 44x50x95 mm datasheet p.1
- Update rate
- 10 Hz datasheet p.1
- Sun exclusion angle
- 40 ° baffle sun rejection angle · datasheet p.1
- Field of view
- 25.4 ° datasheet p.1
- Supply voltage
- 5 V nom. · +5 V · datasheet p.1 5 V | 5 V as published, mode unspecified
- Power consumption
- 1.5 W Nominal · datasheet p.1 1.5 W nom.
- Data interface
- RS-485 RS485 · datasheet p.1
- Configuration
- single unit datasheet p.1
- Limiting star magnitude
- 6.2 Mv tracks stars up to magnitude 6.2 · datasheet p.1
- Flight heritage
- successfully demonstrated in several missions on different types of platforms datasheet p.1
- Satellite class
- CubeSat datasheet p.1
- Baffle
- integrated built-in baffle · datasheet p.1
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 supplier6 lines, in the manufacturer's own wording
- Cross-boresight accuracy
- 2" (1σ)
- Along-boresight accuracy
- 10" (1σ)
- Dimensions
- 44 x 50 x 95 mm
- Power
- 1500 mW
- Supply voltage
- 5 V
- Communication interface
- RS485
About
The Sagitta star tracker is arcsec’s standard, fully autonomous star tracker designed to fit in a CubeSat. It features an integrated baffle to reduce stray light effects and delivers arc second range pointing accuracy. The custom algorithms are optimized for accuracy, robustness, and low computational cost. Sagitta achieves a cross-boresight accuracy of 2″ (1σ) and along-boresight accuracy of 10″ (1σ). It communicates via RS485 and operates on 5V. arcsec reports 99.9% availability across night sky scenarios and more than 5 years cumulative heritage in space with over 100 systems sold worldwide.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.