CAT/IAC

Welcome to the IAC Time Allocation Commission proposal submission service. Please visit CAT for news about the proposal submission process and the time allocation of the Commission. Registration is required for proposal submission.

Night time calls

2024A Regular CAT call

Starndard night time call including GTC, NOT, WHT, TNG, Mercator and TCS for Spanish time and special agreements

Time types available in this call:
CATCHI CATESP IACFLO IACMEX

Open Deadline: Tuesday 31st of December 2024 23:59

2024A IAC time IAC80-OGS-LCO-SARA-OU call

Observing time for IAC80, OGS, LCO, SARA and OU

Evaluating Deadline: Saturday 31st of August 2024 23:59 (past)

2023A Regular CAT call

Special call for GTC and OSIRIS+

Time types available in this call:
CATESP GOSIRIS

Awarded Deadline: Monday 1st of April 2024 23:59 (past)

2023A Regular CAT call

Standard call for 2024A night time

Time types available in this call:
CATESP CIRCEpol ESCIVER GOSIRIS IACFLO

Awarded Deadline: Friday 31st of May 2024 23:59 (past)

Director Discretionary Time

Director Discretionary Time for ORM telescopes

Open

Spanish Service Time

Spanish Service time for INT, NOT, TCS and the TNG only. The proposals are evaluated by the Spanish Night CAT.

Open

Solar time calls

2024 Solar CAT call

Solar time

Evaluating Deadline: Saturday 1st of June 2024 12:00

2023A Solar CAT call

Time call for the GREGOR telescope

Evaluating Deadline: Wednesday 31st of July 2024 12:00

Instituto de Astrofísica de Canarias