Observational strategy is a critical path in any large survey. The
planning of a night requires the knowledge of the fields observed, the
quality of the data already secured, and the ones still to be observed
to optimize scientific returns. Finally, field maximum altitude, sky
distance/brightness during the night and meteorological data (cloud
coverage and seeing) have to be taken into account in order to increase
the chance to have a successful observation. To support the execution of
the J-PAS project at the Javalambre Astrophysical Observatory, we have
prepared a scheduler and a…
OSIRIS is the optical Day One instrument, and so far the only Spanish
instrument, currently operating at the GTC. Building and testing an
instrument for a 8-10m-class telescope with nonprevious commissioning in
turn, has represented a truly unique experience. In this contribution,
the current status, the last commissioning results and some future
prospects are given.
