Optical Infrared Coordination Network for Astronomy

Horizon 2020

OPTICON Horizon 2020 - Transnational Access

Within the OPTICON contract, its Trans-National Access programme is moving towards even greater integration and coordination of the participating telescopes. As part of this move, the funding for the programme has been pooled, and the proposals for OPTICON time at all the telescopes are being reviewed together by a single international Time Allocation Committee (TAC) to ensure network-wide competition and uniform review criteria.

The network comprises 17 distinct telescopes in a size range from 0.6 to 4 metres. These offer a mixture of classically scheduled PI projects, some queue scheduled observing where this is a normal operational mode of the telescope in question and a number of robotic telescopes well suited to both monitoring and quick reaction alert type observations.


The process is open to all European Union astronomers, and to none EU astronomers if certain conditions are met, provided that they do not have automatic access to the faciliites via national mechanisms. Proposals are ranked on scientific merit but special consideration is given to proposers who have no suitable national facilities which they can use.

There are two calls for proposals each year.

The calls generally open at the start of February and August.

The WP leader is John Davies

Current Call

There is no call currently. The most recent call was 2020B. It closed on the 1st March 2020.


John K. Davies (STFC) -

Previous Calls

The previous H2020 call for proposals are listed below for information only:

Call 2020B - Report from 2020B CTAC [PDF / 70 KB]

Call 2020A - Report from 2020A CTAC [PDF / 70 KB]

Call 2019B

Call 2019A

Call 2018B - Report from 2018B TAC [PDF / 60 KB]

Call 2018A

Call 2017B