Riccardo Smareglia, Fabio Pasian, C. Vuerli (Osservatorio Astronomico di Trieste)
An important feature of the Italian National Galileo Telescope (TNG) is the tight coupling between the control, the data handling, and the data archiving systems. This allows a single mechanism to store in FITS format the data of the various instruments, both technical and scientific. At the same time, all technical information derived from the control system telemetry is stored on the on-line archive, and can be retrieved conveniently unscrambled.
In this paper, the mechanism allowing the handling and on-line archiving of TNG technical and scientific data is described. The experience made during the initial months of operations is discussed, with particular reference to performance figures and improvements to be possibly made on the system.