APEX - Call for proposals for Period 109

The European Southern Observatory (ESO) invites proposals for observations at ESO telescopes during


Period 109 (1 April 2022 - 30 September 2022)


Please refer to the Call for Proposals for Period 108 for instruments offered in Period 108, relevant for DDT proposals during Period 108.

This section provides tables of the APEX instruments and facilities offered for observations during Period 109, with their main functionalities given in the Instruments Summary table

This section also lists the recent changes to APEX instruments and facilities since Period 107 or expecting to take place during Period 109 as well as the changes foreseen in the coming periods; please refer to the Call for Proposals for Period 109 for other changes (policy, etc..) relevant for observations with ESO telescopes.