The full observatory details and capability are described in the ISRO web pages.

The observatory constitutes a multi-wavelength capability that allows simultaneous monitoring of targets from 100 Kev to optical wavelengths, with high timing precision. It is intended as a facility with proposal time for all, as well as guaranteed time for the instrument teams. Data from all instruments will be available for all observations. The sky monitor will also be a trigger for target of opportunity observations. The mission lifetime is 5 years, which will be extended as long as it remains in good operational order.

The twin UV-optical telescopes (UVIT) have 38cm aperture and field of view of 29 arcmin with roughly 1 arcsec spatial resolution. One telescope has FUV capability and the other covers NUV and blue-optical by means of a beamsplitter. Thus, three wavelength channels are observed simultaneously. Each channel has a filter wheel that contains interference or longpass filters. The UV channnels also have gratings, and the optical has a neutral density filter.

The detector details and their basic operational modes are described in Hutchings et al (2009: paper 1), and will not be repeated here. Briefly, the detectors are photon-counting devices, with different photocathodes 