
Space Center Germany
ASA400 on DDM85 in Uedem
Space center in Germany observes space debries
Thanks to the ASA400 telescope with ASA DDM85, the space center (WRLageZ) in Uedem, Germany can detect possible collisions of space debris and satellites at an early stage. This should enable timely countermeasures.
Space center in Germany observes space debries
ASA400 on DDM85 in Uedem

ASA Impressions
Pictures: Evers, Gottfried (eve) | Astrid Hoyer-Holderberg | CDS
Products in use
ASA RC600_1
0.6m Ritchey-Chrétien, polar wedge and DDM100 Direct Drive mount
- Optical design: Ritchey-Chrétien RC
- Linear central obstruction: 40%
- Focal length: 4200mm
- Focal ratio system: f7
- Clear Aperture / Focal Ratio Primary Mirror: 600mm (23.6 inch) / f2.5
- Image field: 100mm (1.36 degrees)
- Mirror material: Fused silica
- Back Focus from flange: 211.85mm
- Total weight: 148kg (326lbs)
- Motor: ASA Direct Drive
- Latitude Range: 0 to 90 degrees
- Weight mount (without counterweight): 56kg (123lbs)
- 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 and ASA telescope
- Tracking Accuracy (20° to 85° – unguided, with current pointingfile): <0,25” RMS within 5 minutes
- System Natural Frequency: 10 Hz or greater
