Windell Tanaka

From geometry to efficiency: updated CFHT astrometric camera pointing model and estimated on-sky time savings

Efficient target acquisition is important for the Canada-France-Hawaii Telescope (CFHT). The ESPaDOnS and SPIRou instruments use guide fields only about 10 × 10 arcsec across, so a pointing error can require extra telescope moves and use observing time. This paper updates the calibration of CFHT's AstroCam astrometric...