FRIDA (inFRared Imager and Dissector for Adaptive optics) is an integral-field spectrograph working in the near-infrared wavelength ranges with imaging capability. It will make use of the GTC Adaptive Optics system in one of the Nasmyth focal stations.

The instrument will deliver imaging and 3D spectroscopy at the diffraction limit of the GTC (46 mas in the K-band) with adequate Nyquist sampling. It will have a integral-field camera based on a comprehensive image dissector system using mirrors, several cameras to capture different spatial scales, a variety of filters and 3 diffraction gratings optimized for different resolutions and spectral bands. Spectral resolutions will go up to 30,000.

FRIDA will use a 2048 by 2048 pixels infrared detector HAWAII-2 with a control system that is being developed by the project team at the IAC for the instrument EMIR.

FRIDA will be the first instrument on the GTC to make use of atadaptive optics.

It is a project led by the Instituto de Astronomía de la Universidad Nacional Autónoma de México (UNAM) in partnership with the Instituto de Astrofísica de Canarias (IAC), the University of Florida (UF), and the Universidad Complutense de Madrid (UCM).

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icon Summary of Features


Observing Modes Imaging Integral Field Spectroscopy
Format 30 slices with 66 pixels/slice in the spatial direction and 2 pixels per 'resolution element' in the spectral direction
Field of View
20" x 20"
40" x 40"
0.60" x 0.66"
1.20" x 1.32"
2.40" x 2.64"
Scales 0.010 "/pixel
0.020 "/pixel
0.040 "/pixel
0.020 x 0.010 "/slice x "/pixel
0.040 x 0.020 "/slice x "/pixel
0.080 x 0.040 "/slice x "/pixel
Spectral Resolution
R ~ 1.500 (for ZJ or HK)
R ~ 4.000 (for Z, J, H or K)
R ~ 30.000 (for H or K)
Filters Broad band (ZJHK)
Narrow band

FRIDA from the outside, as it will sit on the Nasmyth platform.

The FRIDA optical bench with all the mechanisms shown.

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icon FRIDA contact persons at GTC


contact email @
Peter Pessev - main contact peter.pessev

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Last modified: 01 December 2017