
Big ASA RC telescopes for ESO
Big ASA telescopes for ESO
Big ASA telescopes for ESO

Impressions of Planet Hunters ExTrA
Imagecredit: ESO, Petr Horálek, Emmanuela Rimbaud
Products in use
ASA RC600_2
0.6m Ritchey-Chrétien, polar wedge and DDM200 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: 230kg (507lbs)
- Motor: ASA Direct Drive
- Latitude Range: 0 to 90 degrees
- Max. load capacity: 200kg (441lbs)
- Weight mount (without counterweight): 138kg (304lbs)
- 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
