9 August 2016 Systems design of COATLI: an all-sky robotic optical imager with 0.3 arcsec image quality
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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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Salvador Cuevas , Salvador Cuevas , Rosalia Langarica, Rosalia Langarica, Alan M. Watson, Alan M. Watson, Jorge Fuentes-Fernández, Jorge Fuentes-Fernández, Fernando Ángeles, Fernando Ángeles, Alejandro S. Farah, Alejandro S. Farah, Liliana Figueroa, Liliana Figueroa, Rosa L. Becerra-Godínez, Rosa L. Becerra-Godínez, Oscar Chapa, Oscar Chapa, Carlos G. Román-Zúñiga, Carlos G. Román-Zúñiga, Fernando Quiróz, Fernando Quiróz, Carlos Tejada, Carlos Tejada, Luis C. Álvarez-Núñez, Luis C. Álvarez-Núñez, Jaime Ruz, Jaime Ruz, Silvio J. Tinoco, 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); doi: 10.1117/12.2234200; https://doi.org/10.1117/12.2234200
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