COATLI is a robotic 50-cm telescope at the Observatorio Astronómico Nacional in Mexico.

COATLI is currently operating with the HUITZI f/20 instrument, which has an EMCCD with pixels of 0.23 arcsec and a field of view of 4 arcmin and grizyw, BVRI, and 470/10, 501/8, 515/10, 640/10, 656/3, and 656/8 filters.

COATLI is a collaboration between:

with funding from:

COATLI is lead by: