Roberto Ragazzoni

TL;DR: The Wide Angle Camera (WAC) as discussed by the authors was built by the Centro Servizi e Attivita Spaziali (CISAS) of the University of Padova for the ESA ROSETTA Mission to comet 46P/Wirtanen and asteroids 4979 Otawara and 140 Siwa.

TL;DR: The CHEOPS Telescope as mentioned in this paper is a Ritchey-chretien telescope with a 320 mm aperture providing a FoV of 0.32 degrees, which will target nearby bright stars already known to host planets, and measure, through ultrahigh precision photometry, the radius of exo-planets, allowing to determine their composition.

TL;DR: The sky coverage problem in the Layer Oriented case is studied, using both numerical and analytical approaches, and a distribution of numerically simulated cases that allows computing the sky coverage with respect to a performance parameter as the Strehl Ratio and to the scientific field size is retrieved.

TL;DR: In this paper, the basic outline of a pupil plane WaveFront Sensor is reviewed taking into account that the source to be sensed could be different from an unresolved source, and that it could deploy also in a 3D fashion, enough to exceed the field's depth of the observing telescope.