
Observatory Zimmerwald, Switzerland
Assembled and put to operation within 6 hours!
ASA Astrosysteme Austria delivered to observatory Zimmerwald in Bern, Switzerland the most recent version. The first ASA AZ800 of the latest generation! The customer, the Astronomical Institute of the University of Bern is one of the world’s successful stations in satellite ranging and space debris detection. ASA staff and AIUB crew assembled the telescope and put it to operation within 6 hours.
Assembled and put to operation within 6 hours!

ASA Impressions
The first ASA AZ800 new Generation 2018 assembled and put to operation within 6 hours!
Products in use
ASA AZ800 f6.85
A high-end complete telescope system with 0.8m aperture
- Optical design: Ritchey-Chrétien RC
- Linear central obstruction: 41%
- Focus position: Nasmyth 2 as standard, 4 as option
- Focal length: 5480mm
- Focal ratio system: f6.85
- Clear Aperture / Focal Ratio Primary Mirror: 800mm (31,5 inch) / f2.5
- Image field: 120mm (1.25 degrees)
- Mirror material: Fused silica
- Surface quality: >94 strehl
- Microroughness: 1nm RMS / <0.7nm Ra
- Coating: Al+SiO2 >96 %
- Back Focus from flange: 252.7mm
- Total weight: 650kg (1433lbs)
- Azimuth / altitude range of motion: 680 degree / 5-90 degree
- Software: ASA Software package with a platform-independent Ascom Alpaca API (via TCP/IP), compatibility with numerous programs, and many additional API features for:
• Creating and optimizing pointing files
• MLPT (e.g., usable with a N.I.N.A plugin)
• Uploading and tracking TLE and CPF satellite orbits
• Orbit corrections when satellite tracking (autoguiding with external CCD cameras)
• Focus control also via Ascom Alpaca API
• Covers (if installed) via Ascom Alpaca API - Max. slew speeds: Up to 50 degrees per second
- Pointing Accuracy (20° to 85°): <8” RMS with pointing model
- Tracking Accuracy (20° to 85° – unguided, with current pointingfile): <0,25” RMS within 5 minutes
- System Natural Frequency: 10 Hz or greater
- Satellite tracking: All sky pointing error (20°-85°) 8” RMS more info
