Systems design of COATLI: an all-sky robotic optical imager with 0.3 arcsec image quality

Salvador Cuevas; Rosalia Langarica; Alan M. Watson; Jorge Fuentes-Fernández; Fernando Ángeles; Alejandro S. Farah; Liliana Figueroa; Rosa L. Becerra-Godínez; Oscar Chapa; Carlos G. Román-Zúñiga; Fernando Quiróz; Carlos Tejada; Luis C. Álvarez-Núñez; Jaime Ruz; Silvio J. Tinoco

doi:10.1117/12.2234200

9 August 2016 Systems design of COATLI: an all-sky robotic optical imager with 0.3 arcsec image quality

Salvador Cuevas , Rosalia Langarica, Alan M. Watson, Jorge Fuentes-Fernández, Fernando Ángeles, Alejandro S. Farah, Liliana Figueroa, Rosa L. Becerra-Godínez, Oscar Chapa, Carlos G. Román-Zúñiga, Fernando Quiróz, Carlos Tejada, Luis C. Álvarez-Núñez, Jaime Ruz, Silvio J. Tinoco

Author Affiliations +

Proceedings Volume 9908, Ground-based and Airborne Instrumentation for Astronomy VI; 99085Q (2016) https://doi.org/10.1117/12.2234200
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

COATLI is a new instrument and telescope that will provide 0.3 arcsec FWHM images from 550 to 920 nm over a large fraction of the sky. It consists of a robotic 50-cm telescope with a diffraction-limited imager. The imager has a steering mirror for fast guiding, a blue channel using an EMCCD from 400 to 550 nm to measure image motion, a red channel using a standard CCD from 550 to 920 nm, and an active optics system based on a deformable mirror to compensate static aberrations in the red channel. Since the telescope is small, fast guiding will provide diffraction-limited image quality in the red channel over a large fraction of the sky, even in relatively poor seeing. The COATLI telescope will be installed at the Observatorio Astronómico Nacional in Sierra San Pedro Mártir, Baja California, México, in 2016 and will initially operate with a simple interim imager. The definitive COATLI instrument will be installed in 2017. In this work we present the general optomechanical and control electronics design of COATLI.

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Salvador Cuevas , Rosalia Langarica, Alan M. Watson, Jorge Fuentes-Fernández, Fernando Ángeles, Alejandro S. Farah, Liliana Figueroa, Rosa L. Becerra-Godínez, Oscar Chapa, Carlos G. Román-Zúñiga, Fernando Quiróz, Carlos Tejada, Luis C. Álvarez-Núñez, Jaime Ruz, and Silvio J. Tinoco "Systems design of COATLI: an all-sky robotic optical imager with 0.3 arcsec image quality", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99085Q (9 August 2016); https://doi.org/10.1117/12.2234200

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