| Clas. | CAT Ref. | PI | Awarded hours | Instrument | Program |
|---|
| A | 70-GTC65/22B | David Martínez Delgado | D (6hrs) | Osiris | A systematic survey of "missing" satellites around Andromeda and M33 in the DESI Legacy imaging survey |
| A | 36-GTC38-A/22B | Alberto Javier Castro Tirado | 10 A (0.4hrs) | Osiris | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| A | 36-GTC39-B/22B | Alberto Javier Castro Tirado | 14 A (1hrs) | Osiris | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| A | 36-GTC40-C/22B | Alberto Javier Castro Tirado | 6 A (1hrs) | EMIR | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| A | 88-GTC74-A/22B | Josefa Becerra González | 1 D (20hrs) | Osiris | Characterizing the electromagnetic counterparts of gravitational waves |
| A | 88-GTC75-B/22B | Josefa Becerra González | 1 A (10hrs) | EMIR | Characterizing the electromagnetic counterparts of gravitational waves |
| A | 61-GTC57/22B | Ignacio Trujillo Cabrera | D (6hrs) | Osiris | Ultra-deep imaging of the galaxy lacking dark matter AGC 114905 |
| A | 16-GTC22/22B | Teodoro Muñoz Darias | 10 A (1hrs) | Osiris | X-ray Binary Transients: accretion disc winds and nebulae. |
| A | 34-GTC33/22B | Emilia Järvelä | G (8.25hrs) | Osiris | Exploring young jets: a sample of new candidate gamma-NLS1s |
| A | 47-GTC49/22B | Marianna Annunziatella | A (30hrs) | EMIR | Catch Them Before they Quench: The First Comprehensive Look at Ultra-massive Star-forming Galaxies at 3 |
| A | 4-GTC4-A/22B | Lluís Galbany | 1 A (8hrs) | EMIR | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| A | 4-GTC5-B/22B | Lluís Galbany | 1 A (10hrs) | Osiris | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| A | 26-GTC27-A/22B | David Garcia Alvarez | G (6.5hrs) | MEGARA | Studying the effects of exo-aurora using JWST and GTC |
| A | 26-GTC28-B/22B | David Garcia Alvarez | G (3.5hrs) | Osiris | Studying the effects of exo-aurora using JWST and GTC |
| B | 46-GTC47-A/22B | David Jones | 12 G (1.8hrs) | Osiris | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| B | 46-GTC48-B/22B | David Jones | 12 A (1hrs) | EMIR | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| B | 67-GTC60-A/22B | Nancy Elias Rosa | G (10hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations |
| B | 67-GTC61-B/22B | Nancy Elias Rosa | G (13hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations |
| B | 126-GTC120-A/22B | David Alexander Kann | 4 A (2.5hrs) | EMIR | GRBs, their progenitors and their environments |
| B | 126-GTC121-B/22B | David Alexander Kann | 8 A (1.1hrs) | Osiris | GRBs, their progenitors and their environments |
| B | 87-GTC73/22B | Zohreh Ghaffari | D (8hrs) | Osiris | A galaxy cluster core at z=1.1 with a swarm of blue star-forming galaxies |
| B | 56-GTC54/22B | Ignacio Martín-Navarro | G (30hrs) | MEGARA | M-SALSA - Megara Survey of Andromeda gLobular cluSter Abundances |
| B | 69-GTC64/22B | Roberto Raddi | D (5hrs) | Osiris | Quantitative spectral analysis of two partly burned thermonuclear-supernova survivors |
| B | 18-GTC23/22B | Raquel Fores Toribio | D (5hrs) | Osiris | Measuring the redshift of the lensed source in B0445+123 to determine H0. |
| B | 100-GTC90/22B | Alexandre Vazdekis Vazdekis | A (19hrs) | EMIR | Relic galaxies as an empirical benchmark for the intermediate-age stellar populations origin of strong CO absorptions in massive ETGs |
| B | 12-GTC18-A/22B | Javier Licandro Goldaracena | 4 A (1hrs) | Osiris | Characterizing new discovered faint Main Belt Comets |
| B | 12-GTC19-B/22B | Javier Licandro Goldaracena | 2 A (1hrs) | Osiris | Characterizing new discovered faint Main Belt Comets |
| B | 3-GTC3/22B | Pilar Ruiz Lapuente | G (20hrs) | Osiris | Improved dark energy determination with SNe Ia at z >1 within the Subaru program using the Hyper Suprime Camera and the GTC |
| B | 72-GTC67-B/22B | Eduardo Martin Guerrero de Escalante | G (3hrs) | Osiris | Spectroscopic identification of strong line emission field ultracool dwarfs |
| B | 120-GTC108/22B | Chiara D'Eugenio | D (20hrs) | Osiris | Solving the degeneracy in photoz estimation methods for an optimum exploitation of Euclid |
| B | 125-GTC119/22B | Alejandro Lumbreras Calle | G (8hrs) | Osiris | The quest for the most extreme emission line galaxies in the Universe |
| B | 59-GTC55/22B | Borja Montoro Molina | A (9.5hrs) | MEGARA | Investigating the true nature and extreme physics of the born-again planetary nebula A 30 |
| B | 104-GTC93/22B | Juan Carbajo Hijarrubia | A (5.5hrs) | MEGARA | Chemical abundances in the outer disk open cluster Auner 1 |
| B | 119-GTC104-A/22B | David Alexander Kann | 1 A (8hrs) | EMIR | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 119-GTC105-B/22B | David Alexander Kann | 1 D (2hrs) | MEGARA | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 119-GTC106-C/22B | David Alexander Kann | 6 A (1hrs) | Osiris | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 119-GTC107-D/22B | David Alexander Kann | 1 A (8hrs) | Osiris | GTC follow-up of binary-merger induced Kilonovae in the electromagnetic domain |
| B | 93-GTC78/22B | Alexandre Vazdekis Vazdekis | A (10hrs) | EMIR | CO-strong absorptions in the prototype relic galaxy NGC1277: a stellar population challenge at varying radii? |
| B Visitor | 2-GTC2/22B | David Barrado Navascués | A (27hrs) | EMIR | Spectroscopy of young free-floating planets in Taurus |
| B | 66-GTC59/22B | Enric Palle Bago | A (21hrs) | Osiris | Constraining the mass-metallicity trend at the sub-Saturn regime |
| B | 86-GTC72/22B | Roberto Raddi | G (14.65hrs) | Osiris | White dwarfs in old open clusters as probes of stellar evolution |
| B | 49-GTC50/22B | Alberto Dominguez | D (7hrs) | MEGARA | Unraveling the origin of relativistic jets with GTC-MEGARA |
| B | 51-GTC52/22B | Jose Alfonso Lopez Aguerri | D (5.5hrs) | Osiris | The faint-end slope of the luminosity function in the fossil cluster Abell 267 |
| B | 60-GTC56/22B | Cesar Esteban Lopez | D (14hrs) | Osiris | The radial abundance gradient of the outer disc of M31 from HII region spectra |
| B | 80-GTC70/22B | Cristina Ramos Almeida | D (34.8hrs) | MEGARA | Investigating the impact of quasar-driven outflows on massive galaxies |
| B | 95-GTC86/22B | Sébastien Comerón Limbourg | D (10hrs) | Osiris | Ultra-deep imaging of edge-on galaxies: Flares, warps, satellites, thick discs, and stellar halos |
| B | 108-GTC95/22B | Juan Antonio Fernández Ontiveros | G (2hrs) | Osiris | Unveiling the sub-kpc physics of star formation in the nearby Universe through Crowded Field Spectroscopy using a OSIRIS-CALIFA synergy |
| B | 118-GTC101-A/22B | Francisco Prada | 1 A (3hrs) | Osiris | Spectro-photometric light curves for kilonovae from GW-LVK O4 run: Equation of state and Hubble constant determination |
| B | 118-GTC102-B/22B | Francisco Prada | 1 A (2hrs) | Osiris | Spectro-photometric light curves for kilonovae from GW-LVK O4 run: Equation of state and Hubble constant determination |
| B | 118-GTC103-D/22B | Francisco Prada | 1 A (14hrs) | Osiris | Spectro-photometric light curves for kilonovae from GW-LVK O4 run: Equation of state and Hubble constant determination |
| C | 21-GTC26/22B | Emilia Järvelä | G (6.3hrs) | Osiris | Determining the ionisation source of the gas in AGN with absorbed jets |
| C | 117-GTC100/22B | Zhengyi Chen | D (2.5hrs) | MEGARA | To search for sub-hundred-km/s gaseous outflow in a lenticular galaxy PGC44685 hosting Wolf-Rayet Populations |
| C | 68-GTC62-A/22B | Armando Gil de Paz | D (7.2hrs) | MEGARA | Breaking stellar population degeneracies with deep MEGARA spectroscopy of the face-on disk of NGC628 |
| C | 68-GTC63-B/22B | Armando Gil de Paz | G (12.8hrs) | MEGARA | Breaking stellar population degeneracies with deep MEGARA spectroscopy of the face-on disk of NGC628 |
| C | 78-GTC69/22B | Victor J. Sanchez Bejar | A (7hrs) | EMIR | Direct emission light from a transiting brown dwarf in Praesepe |
| C | 52-GTC53/22B | Martin Guerrero Roncel | G (6hrs) | MEGARA | MEGARA Spatio-kinematic Investigation of the Iconic Nova Remnant T Aur |
| C | 109-GTC96/22B | Nuria Huelamo | G (12.5hrs) | MEGARA | Characterization of disk structure and evolution in young massive stars |
| C | 116-GTC99/22B | Raúl de la Fuente Marcos | D (9hrs) | Osiris | Investigating active members of the outer asteroid belt with GTC/OSIRIS: 2019 OE31 |
| C | 92-GTC77/22B | David Garcia Alvarez | A (15hrs) | EMIR | Determining accurate physical properties of dusty Red Supergiants in low metallicity galaxies |
| C | 127-GTC122/22B | Ismael Pérez Fournon | D (11hrs) | Osiris | Herschel-LOFAR hyperluminous infrared galaxies (HLIRGs) - the greatest challenge in ultra-massive galaxy formation? |
| C | 98-GTC88/22B | Alberto Javier Castro Tirado | G (3hrs) | Osiris | Short Gamma-Ray Bursts: Revealing the Nature of their Host Galaxies |
| C | 75-GTC68/22B | María Begoña García Lorenzo | G (25hrs) | MEGARA | Nuclear-star-cluster formation in late-type galaxies: spatially resolving their stellar populations with MEGARA |
| C | 39-GTC44/22B | Eduardo Martin Guerrero de Escalante | G (10hrs) | Osiris | Lithium in brown/white dwarf close binary systems |
| C | 44-GTC46/22B | Anlaug Amanda Djupvik | A (4hrs) | EMIR | Do irradiated globules lack low-mass stars? |
| C | 20-GTC25/22B | José Miguel Rodríguez Espinosa | D (10hrs) | MEGARA | Understanding the Universe's reionisation |
| C | 71-GTC66/22B | Jose Antonio Acosta Pulido | D (4hrs) | MEGARA | 2-D spectroscopic study of the host galaxy of gamma-ray emitting NLSy1 1H 0323+342 |
| C | 101-GTC91/22B | Javier Olivares Romero | D (8hrs) | Osiris | The Lithium depletion boundary of Group X |
| C | 112-GTC97/22B | Jun-Yan Zhang | A (19.3hrs) | EMIR | Euclid preparation: Reconnaissance spectroscopy of ultracool dwarfs in the Euclid Deep Fields |
| C | 30-GTC31/22B | Riccardo Scarpa | A (17hrs) | EMIR | EMIR imaging of TeV gamma-ray blazars: distance from host galaxy properties |
| C | 103-GTC92/22B | José Feliciano Agüí Fernández | G (7.5hrs) | MEGARA | The host-galaxy environments of short GRBs with MEGARA |
| C | 128-GTC123-A/22B | Stefan Geier | A (13hrs) | EMIR | A new type of quasar? |
| C | 128-GTC124-B/22B | Stefan Geier | D (20hrs) | Osiris | A new type of quasar? |
| C | 27-GTC29/22B | David Garcia Alvarez | A (15hrs) | EMIR | Spectroscopic follow-up of new eruptive young star candidates found with Gaia |
| C | 105-GTC94/22B | José Feliciano Agüí Fernández | G (22.5hrs) | MEGARA | 3D kinematics and abundances in SLSN hosts with MEGARA |
| C | 122-GTC109-A/22B | Maria Luisa Garcia Vargas | D (7.9hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC110-B/22B | Maria Luisa Garcia Vargas | G (5.9hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC111-C/22B | Maria Luisa Garcia Vargas | G (5.9hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC112-D/22B | Maria Luisa Garcia Vargas | G (3.4hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC113-E/22B | Maria Luisa Garcia Vargas | D (7.9hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC114-F/22B | Maria Luisa Garcia Vargas | D (5.2hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC115-G/22B | Maria Luisa Garcia Vargas | G (5.9hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 122-GTC116-H/22B | Maria Luisa Garcia Vargas | D (7.9hrs) | MEGARA | Studying the evolutionary status and kinematics of eXtremely Metal Deficient (XMD) gas-rich galaxies in nearby voids with MEGARA. |
| C | 6-GTC6/22B | Mercedes Mollá Lorente | D (6.3hrs) | MEGARA | A deep spectroscopic blue mapping of Leoncino galaxy with MEGARA IFU |
| C | 35-GTC34-A/22B | Raúl de la Fuente Marcos | D (2hrs) | Osiris | Peering beyond the heliopause horizon with GTC/OSIRIS: further observations of the farthest known Solar System objects 2018 AG37, 2018 VG18, 2020 FA31 and 2020 FY30 |
| C | 35-GTC35-B/22B | Raúl de la Fuente Marcos | D (2hrs) | Osiris | Peering beyond the heliopause horizon with GTC/OSIRIS: further observations of the farthest known Solar System objects 2018 AG37, 2018 VG18, 2020 FA31 and 2020 FY30 |
| C | 35-GTC36-C/22B | Raúl de la Fuente Marcos | D (2hrs) | Osiris | Peering beyond the heliopause horizon with GTC/OSIRIS: further observations of the farthest known Solar System objects 2018 AG37, 2018 VG18, 2020 FA31 and 2020 FY30 |
| C | 35-GTC37-D/22B | Raúl de la Fuente Marcos | D (2hrs) | Osiris | Peering beyond the heliopause horizon with GTC/OSIRIS: further observations of the farthest known Solar System objects 2018 AG37, 2018 VG18, 2020 FA31 and 2020 FY30 |
| C | 99-GTC89/22B | Angela Gardini | G (4hrs) | MEGARA | Probing the fast radio burst - young magnetars connection for FRB 20201124A |
| C | 13-GTC20-A/22B | María Caballero García | D (6hrs) | Osiris | Identifying the nature of UV transients discovered with Swift UVOT during GW follow-up |
| C | 13-GTC21-B/22B | María Caballero García | D (3hrs) | Osiris | Identifying the nature of UV transients discovered with Swift UVOT during GW follow-up |
| C | 8-GTC7-A/22B | Raúl de la Fuente Marcos | D (1.5hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC8-B/22B | Raúl de la Fuente Marcos | D (1.5hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC9-C/22B | Raúl de la Fuente Marcos | D (1.5hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC10-D/22B | Raúl de la Fuente Marcos | D (0.9hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC11-E/22B | Raúl de la Fuente Marcos | D (1.5hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC12-F/22B | Raúl de la Fuente Marcos | D (0.9hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC13-G/22B | Raúl de la Fuente Marcos | D (0.9hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC14-H/22B | Raúl de la Fuente Marcos | D (0.9hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC15-I/22B | Raúl de la Fuente Marcos | D (0.9hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 8-GTC16-J/22B | Raúl de la Fuente Marcos | D (1.5hrs) | Osiris | Unveiling the Inert Oort Cloud: Continue Recovering ACT Candidates with GTC/OSIRIS |
| C | 97-GTC87/22B | José Feliciano Agüí Fernández | G (18hrs) | Osiris | Pre-explosion spectroscopy of potential SN progenitors in NGC 2403 |
| Filler | 64-GTC58/22B | Jorge Casares Velázquez | A (36hrs) | Osiris | Unveil quiescent black holes in binaries |
| Filler | 31-GTC32/22B | Julia de Leon Cruz | A (20hrs) | Osiris | Visible spectra of newly discovered near-Earth asteroids and NEAs accesible to spacecraft |
| Filler | 83-GTC71/22B | Mercedes Mollá Lorente | A (75hrs) | MEGARA | MEGASTAR. MEGARA-GTC Stellar Library |
| Filler | 29-GTC30/22B | Riccardo Scarpa | G (25hrs) | Osiris | Unveiling the nature of unidentified gamma-ray sources: the 4th Fermi catalog - Extended redshift sample |
| Filler | 1-GTC1/22B | Jesús Maíz Apellániz | A (60hrs) | Osiris | Spectroscopic follow-up of the cross-match of the OB stars in the ALS catalog with Gaia |