Observing time

CAT DDT request form (WHT, INT, NOT, TNG)

The Director Discretionary Time (DDT-IAC) has special characteristics and it is different to other observing time. Applicants should read the conditions carefully before submitting their proposal. The use of English is recommended.

CAT DDT request form (GTC)

See the rules to apply for Director’s Discretionary Time at the GTC. The use of English is recommended.

Service time request form

This form is valid ONLY for INT, NOT, TCS and the TNG service time proposals. INT, NOT, TCS and TNG service time proposals are evaluated but the Spanish Night CAT. The observing projects should be prepared following the rules and conditions explained here. Note that for the INT, NOT, TCS and TNG, the number of […]

Observing time through consortia and special agreements

Access to some telescopes is granted though specific agreements between the IAC and external institutions or consortia. The data are available to the IAC community through collaboration with the PIs. SONG : The IAC is one of the SONG partner and has full access to all data produced by the instruments in the network. Moreover, […]

IAC Guaranteed Time: other telescopes

The IAC has guaranteed time in the following telescopes: Las Cumbres (LCOGT): A total of approximately 400 hr per semester are granted to the IAC community to the 0.4m network of telescopes. This time is allocated by the IAC-CAT following these instructions. Moreover, regular proposals can be submitted to the LCOGC central TAC. All the […]

Observing with the OT telescopes: IAC80, TCS and OGS

Since semester 2013A, the IAC80 and the Carlos Sánchez Telescope (TCS) are not offered any more though the night CAT. The observing proposals for the IAC80, TCS telescopes will go directly to the Head of Telescope Operations (JOT) through the official forms (for regular proposals or service time), not accepting proposals submitted by other means. […]

Observing with Canary Islands Telescopes: general information

The principal goal of the IAC is “to promote astrophysical research”. One of the most effective ways the Instituto de Astrofísica de Canarias (IAC) has of doing this is through providing the use of Spanish observing time on each of the telescopes installed in the Canarian observatories at the Observatorio del Roque de Los Muchachos […]