Observing time state: Submission of proposals open

  • Observing time
    Director Discretionary Time at GTC

    We are pleased to announce the availability of Director Discretionary Time (DDT) at the 10.4m GTC facility (GTC-DDT), which includes up to 10 nights per...

  • Observing time
    Director Discretionary Time at WHT, INT, NOT y TNG

    DDT proposals are accepted for every night allocated as Service Time on the NOT, TNG, and INT. For the WHT, DDT nights are scheduled exclusively as CAT DDT (see...

  • Observing time
    IAC Guaranteed Time LCOGT, SAFT, Open University Telescope

    The IAC has guaranteed time in the following telescopes: Las Cumbres (LCOGT): A total of approximately 400 hr per semester are granted to the IAC community to...

  • Observing time
    IACNordic Collaborative Time

    Following the Agreement between IAC and NOTSA for the continued operation of the Nordic Optical Telescope, 5% of the observing time at NOT will be offered for...

  • Observing time
    International Time Programme

    About 5% of the observing time in all telescopes of Roque de Los Muchachos Observatory and STELLA Robotic telescopes is also offered for International Time...