Registration of new proposals for the first half of 2025 is open from August 1 to September 10   23:59:59 (UTC+3), 2024.

Please carefully read the regulations for submission of proposals.

Note: When filling in a proposal for small-sized telescopes, please note that the principal systems for accepting requests are the online forms for the BTA (for small-sized optical telescopes) and the RATAN (for RT-22, RT-22 LPI and BSA LPI).

Big Telescopes

Small Optical Telescopes

Small Radiotelescopes

As part of the activities of the RTTAC, applications for small optical and small radio telescopes are submitted by external applicants according to quotas times:

ZTSh-2.6м (CrAOI)	RT-22 (CrAO)	Zeiss-2.0м (Terskol)	Zeiss-1.0м (SAO RAS)	SAI MSU-2.5м (SAI MSU)	RT-22 LPI (PRAO)	BSA LPI (PRAO)
50%	50%	25%	25%	20%	740 hour	847 hour