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.
DDT
CAT DDT request form (GTC)
See the rules to apply for Director’s Discretionary Time at the GTC. The use of English is recommended.
Scheduled observations
CAT Service Nights and DDT