ASTRO XP High Accuracy Star Tracker
Jena-Optronik
Ultra-high precision star tracker for science and EO missions: <0.1/<3.5 arcsec XY/Z accuracy, catoptric all-mirror optics, 3.3deg FOV, 10.2 mi sensitivity, separate OH+EU architecture.
Typed specifications12 values
Discloses 7 of 12 fields engineers filter by in this category (category median 8).
- Accuracy, cross-boresight
- 3.5 arcsec max · product page
- Mass
- 2 500 g as published, mode unspecified · vendor page (catalogue a
- Envelope (L×W×H)
- 215 x 215 x 321 mm product page 137 x 146 x 60 mm
- Update rate
- 2 Hz product page
- Sun exclusion angle
- 30 ° product page
- Field of view
- 3.3 ° product page
- Lost-in-space acquisition time
- 1 s max · product page
- Supply voltage
- 28–100 V as published, mode unspecified · vendor page (catalogue a
- Power consumption
- 1.5 W as published, mode unspecified · vendor page (catalogue a
- Operating temperature
- -40–30 °C as published, mode unspecified · vendor page (catalogue a
- Radiation tolerance (TID)
- 65 krad as published, mode unspecified · vendor page (catalogue a
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 supplier23 lines, in the manufacturer's own wording
- Architecture
- Separate Optical Head (OH) + remote Electronics Unit (EU)
- Field of view
- 3.3 deg circular
- Optics
- Catoptric (all-mirror), 175 mm focal length, f/2.0, low-CTE material
- Image sensor
- FaintStar2 SoC, 1024x1024 px
- Update rate
- 2, 4, or 8 Hz
- Accuracy xy (1-sigma)
- <=0.1 arcsec (no filtering)
- Accuracy z (1-sigma)
- <=3.5 arcsec
- Thermoelastic error
- <=0.005 arcsec/K
- Bias
- <=+/-0.5 arcsec
- Acquisition time
- <=1 s
- Max slew rate
- <=0.5 deg/s (single OH); <=6 deg/s (with wide-FOV OH)
- Limiting magnitude
- 10.2 mi @ 100 ms integration
- Oh mass
- <=2.5 kg
- Eu mass
- <=1.3 kg
- Oh+baffle dimensions
- 215 x 215 x 321 mm
- Eu dimensions
- 137 x 146 x 60 mm
- Power (OH)
- <=1.5 W
- Power (EU)
- <=5 W
- Supply voltage
- 28-100 VDC
- Interface
- SpaceWire, MIL-1553
- Sun exclusion angle
- 30 deg half-cone
- Operating temperature
- -40 to +30 deg C
- Radiation
- >=50 krad SEL; >=65 MeVcm2/mg SEL; up to 18yr GEO
About
The Jena-Optronik ASTRO XP (eXtreme Precision) is designed for the next generation of science and high-resolution Earth observation missions requiring ultra-high attitude accuracy. With less than 0.1 arcsec random error across-boresight and less than 3.5 arcsec boresight (5 stars, no filtering), it delivers approximately 10x better accuracy than the ASTRO APS/APS3. The catoptric (all-mirror) 175mm f/2.0 optics from low-CTE material eliminate chromatic aberration and thermoelastic error to less than 0.005 arcsec/K. The 3.3-degree FOV and limiting magnitude of 10.2 mi (at 100ms integration) enable attitude determination in dense star fields. Architecture separates the optical head (2.5 kg) from the electronics unit (1.3 kg), allowing remote mounting of the EU. Lost-in-space acquisition in less than 1 second. Won the Thuringer Innovationspreis 2020, developed under ESA contract.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.