EMIR (Espectrografo Multiobjeto Infra-Rojo) is a wide field, near infrared, multiobject spectrograph, with image capabilities, which is currently located at one of the Nasmyth focus of the 10.4m GTC (Gran Telescopio Canarias). It allows observers to obtain many intermediate resolution spectra simultaneously, in the near IR bands: Z, J, H and K. A configurable cryogenic multislit mask unit provides target acquisition too. This paper describes the upgrade of EMIR (to EMIR+) which incorporates a new Teledyne H2RG infrared detector, using the SIDECAR integrated controller and a Markury Scientific MACIE interface card over IP communication. A detailed description of the Data Acquisition System (DAS), integrated into the GTC Control System (GCS) software, is given. It configures the URG or FS acquisition modes, starts the acquisition process, capture the data coming from the H2RG unit, stores the FITS data and propagate the images to produce astronomical files. We also developed a Python-based MACIE Controller Simulator to test and debug the DAS, which works as a real MACIE interface, responding to all petitions and generating test images to feed the DAS or other control programs.
FRIDA is a diffraction-limited imager and integral-field spectrograph for the adaptive-optics focus of the Gran Telescopio Canarias. In imaging mode FRIDA provides scales of 10, 20 and 40 mas/pixel and in IFS mode spectral resolutions of about 1200, 4000 and 30,000. Coronographic masks are available in both modes for highcontrast images. FRIDA is undergoing systems integration and is scheduled to complete system testing at the laboratory in December 2024 and to be delivered to the telescope shortly thereafter. In this contribution we present a summary of its design, fabrication, current status and potential scientific applications.
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