Trans-National Access Programme Call for Proposals 2021B – GREGOR

SOLARNET is pleased to announce its seventh call for proposals of its Access Programme for the solar telescope GREGOR

Period: 2021B
Proposal Submission Deadline: 24 May 2021, 23:59 UT

Send proposals to:

Proposals are hereby invited under the SOLARNET Trans-National Access Programme for observing time at the solar telescope GREGOR on Tenerife.  This call also includes observing time in the International Time Program (ITP).

Proposals will be handled by the EAST TAC, a common European time allocation committee installed by the European Association for Solar Telescopes. Typically, successful proposals in PI visitor mode will be awarded with around 10 observing days. SOLARNET campaigns also get travel grants for two visiting researchers going to the telescope. For GREGOR, this travel may go to Freiburg for remote observations dependent on possible travel restrictions.

The observing period for successful proposals is expected to be August-November 2021.

New users of the facilities are encouraged to apply. Certain criteria of eligibility related to the nationalities of the applicants exist and are different for each telescope.
For SOLARNET time, the PI and at least half the Co-I’s must have affiliations other than Germany or Spain. Other than that, this call is open to the world, making use of an option in the rules for Access programmes that allows a quota for non-EU and non-associated countries.

For ITP time, applications must include researchers with affiliations in at least two of the following countries: Spain, UK, Germany, France, Italy, Finland and Belgium.

Data acquired in the SOLARNET Access Programme will become public one year after being delivered to the PI.

Information on the telescopes and their instrumentation can be found at the telescope web pages:

GREGOR Instruments Leibniz-Institut fuer Sonnenphysik (KIS): Scientific instruments (
GREGOR Other information Leibniz-Institut fuer Sonnenphysik (KIS): Observing with GREGOR (

A proposal consists of a SOLARNET form or an ITP form plus a form that is specific for the telescope.

Please download the forms here: Download file

All proposals should be sent via email to and must be received by 23:59 UT on May 24, 2021.

SOLARNET is funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 824135.