The call for the 2.4m TNT and the TRTs is open to all Thai and International affiliated astronomers while the TNO-1m telescope is currently open only for NARIT affiliated astronomers. Proposals with at least ONE Thai-affiliated CoI (or PI) are strongly encouraged. Non-Thai affiliated PI/Co-I proposals can be submitted in the usual way. However, if a Thai-affiliated and a non-Thai-affiliated proposal are ranked equally, preference will be given to the Thai-affiliated proposal.
Furthermore, in deciding on proposal rankings the Time Allocation Committee will take into account the publication record and impact of the proposers with previous NARIT telescope time allocations.