Call for observing proposals
There is currently no call active.
The next regular announcement for observing time is expected to be released on March 2027 for observing semester 2027B.
Director's Discretionary Time at the GTC (GTC-DDT) can be requested at any time by members of the GTC community (Spain, Mexico and the University of Florida).
Previous calls
A full list with previous calls for proposals for GTC can be found here.
Last modified: 02 October 2026
