AZ2500 f7 - Datasheet

ASA AZ2500 f7 f2


The extension of evolution of high-end telescope systems with 2.5m aperture. 2500mm f7/f2 Ritchey-Chrétien large telescope with new design features. Perfect optical alignment, the interaction of the ASA hexapod on the secondary mirror (M2) with the active mirror cell for the primary mirror (M1) actively optimises the optical alignment for the best image quality. New fork design, the new high performance concrete fork structure further improves the natural frequency characteristics of the ASA large telescopes. This complete solution represents a fully integrated alt-az observatory system. The AZ2500, with ASA’s biggest mirror with 2.5m, is equipped with ASA optics (Zerodur). This guarantees diffraction-limited performance and best micro-roughness values even under the most perfect Earth-based astronomical seeing conditions. With fast focal ratio, the design results in less obstruction, higher contrast, and a more compact system. The size and cost of your dome infrastructure is reduced. Main Facts Optical design Ritchey-Chrétien RC Linear central obstruction 37% Focus position Nasmyth 2 as standard, 3 as option Focal ratio system f7 Clear Aperture / Focal Ratio Primary Mirror 2500mm (98,4 inch) / f2 Mirror material Zerodur Surface quality >94 strehl Microroughness 1nm RMS / <0.7nm Ra Coating AI+SiO2 Back Focus from flange 519mm Total weight 20151kg (44426lbs) 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 • Full API control over rotator, Nasmyth port • Full API control over M2 hexapod and the active mirror cell for M1 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

Main Facts