The 5% International Time Programme is open for the next semesters 2025B and 2026A: deadline at 23:59 of March 7, 2025.

The International Scientific Committee (CCI) of the Roque de los Muchachos (ORM, La Palma) and Teide (OT, Tenerife) observatories invites applications for the International Time Programme (ITP) on the telescopes installed at these Observatories. Check out their web page.

The current call (for the next 2 semesters and starting with semester 2025B=AOT52) is open until 23:59 of March 7, 2025. The call can be downloaded here

Proposals should be international in their range of participants and are expected to involve astronomers from at least three of the seven European countries that are signatories to the Agreements for Cooperation in Astrophysics (Belgium, Finland, France, Germany, Spain and UK). Astronomers from scientific institutions from any other country in the world can be included.

Proposals that need frequent monitoring of targets and would like to participate in Time Sharing should carefully follow the rules that are actually in force at the TNG, available at the following link.

The PIs are kindly asked to contact the TNG staff to discuss available instruments and for an initial technical appraisal on the feasibility of their proposed observations. For the TNG, 15 nights per year (two semesters) are offered, but no more than eight nights can be requested in one semester.

The observing programmes should concentrate on a single astronomical investigation. Proposals that would benefit from the use of more than one facility are especially encouraged, and in particular those which would be unlikely to obtain the necessary large amount of observing time through the usual time allocation panels because of the difficulty to coordinate several telescopes. Hence, a typical ITP program is a large or a small international program that involves a complementary use of different telescope facilities, with a clear case why the total is more than the sum of the parts.

Contact the CCI Secretary for further information and an application form (cci@iac.es) or download it.