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Calls for Proposals

International Scientific Committee (CCI)
Semester 2026-2027 International Time Programme

The CCI have issued a call for proposals for the International Time Programme (ITP) for their Semester 2026B-2027A period. The call is open to astronomers from any country, and offers 80 hours of telescope time at each of the LT, Gran Telescopio Canarias (GTC), William Herschel Telescope (WHT), Telescopio Nazionale Galileo (TNG), Nordic Optical Telescope (NOT), and STELLA (STELLar Activity). The Telescopio Nazionale Galileo (TNG) and Mercator telescopes offer 15 nights/year at their facilities.

Applications must be received by 23:59 UT on 9th March 2026.

See the official call document for submission instructions.

The most recent PATT, JMU and Spanish CAT Calls for Proposals have closed.

Please revisit this page roughly one month before the next deadline, or email Phase1 Support for an update. The next deadline is expected to be at the start of April (for semester B) or at the start of October (for semester A).

For an overview of how to obtain observing time on the LT, please see the Phase 1 preparation page.

For a description of the instruments currently available on the LT, please go to the Instruments page.

Schools and Colleges requiring access to the LT should visit The Schools' Observatory website for further details.

Amateur and semi-professional astronomers should apply through the PATAG program.