2026A NASA IRTF Call for Proposals | Deadline: 5:00pm ET Wednesday, October 1st

The due date for NASA Infrared Telescope Facility Call for Proposals for the 2026A semester (February 1, 2026 to July 31, 2026) is Wednesday, October 1, 2025.

See our online submission form, which is available for proposal submission from 12:00AM on September 01, 2025 until 5:00PM on October 01, 2025 HST. Available facility instruments include: (1) SpeX, a 0.7 – 5.3 micron cross-dispersed medium-resolution spectrograph (up to R=2,500) and imager; (2) MORIS, a 60"x60" field-of-view, 0.12"/pixel high speed CCD camera that can be used simultaneously with SpeX; (3) iSHELL, a 1.06 – 5.3 micron cross-dispersed echelle spectrograph (up to R=80,000) and imager; (4) MIRSI/MOC, a 5-20 micron camera and optical imager (grism spectroscopy mode not available for 2026A); (5) ‘Opihi, a 17 inch telescope mounted to and aligned with IRTF with a wide-angle 32 0.94"/pixel CCD with optical filters. Information on available facility and visitor instruments and performance can be found at this page. Exposure time calculators for SpeX and iSHELL are available on the respective instrument webpages.

Please see Call for Proposals for the NASA Infrared Telescope Facility for the full text.

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