Plato: diameter 109 Km and depth 1.0 Km.
Plato A: diameter 20 Km and depth unknown.
(Source Wikipedia)
Telescope reflector aperture 114mm (4.5"), focal length 900mm, eyepiece (1.25") 13mm, Barlow 2X and Moon filter.
Date: Feb 16, 2016. Hour: 21:04 (01:34 UTC).