| Band | Ref. CAT | PI | Awarded hours | Instrument | Title |
|---|
| A | 7-GTC4-A/25B | Daniel Mata Sánchez | 5 A (1hrs) | HIPERCAM | Understanding the origin of fast X-ray transients discovered with Einstein Probe |
| A | 7-GTC5-B/25B | Daniel Mata Sánchez | 2 A (1hrs) | EMIR | Understanding the origin of fast X-ray transients discovered with Einstein Probe |
| A | 7-GTC6-C/25B | Daniel Mata Sánchez | 5 A (1.5hrs) | Osiris | Understanding the origin of fast X-ray transients discovered with Einstein Probe |
| A | 26-GTC22/25B | Maria Cruz Galvez Ortiz | A (7.6hrs) | EMIR | Spectroscopic follow up of T extreme subdwarf candidates selected from deep optical to infrared surveys |
| A | 90-GTC71/25B | Nada Ihanec | G (4hrs) | HIPERCAM | Investigating the nature of Ibn/Icn SNe with late time photometry |
| A | 33-GTC28/25B | María Rosa Zapatero Osorio | G (80.6hrs) | HIPERCAM | Wind velocities of brown dwarf atmospheres |
| A | 83-GTC68/25B | Victor J. Sanchez Bejar | A (7hrs) | EMIR | Direct emission light from a transiting brown dwarf at the Pleiades age |
| A | 119-GTC98-A/25B | Oscar Porqueras Leon | A (8.916hrs) | Osiris | Spectrophotometric Characterisation of the Stellar Surfaces of TRAPPIST-1 and TOI-1801 During Planetary Transits Observed with JWST |
| A | 119-GTC99-B/25B | Oscar Porqueras Leon | A (9.987hrs) | Osiris | Spectrophotometric Characterisation of the Stellar Surfaces of TRAPPIST-1 and TOI-1801 During Planetary Transits Observed with JWST |
| A | 55-GTC44/25B | Ignacio Martín-Navarro | D (2hrs) | Osiris | The first strong gravitational lens discovered in Euclid: a complete characterization of the initial mass function |
| A | 38-GTC29-A/25B | Francesco Coti Zelati | 3 G (1hrs) | Osiris | Prompt GTC study of unidentified transient LMXBs discovered by the Einstein Probe |
| A | 38-GTC30-B/25B | Francesco Coti Zelati | 3 D (1.2hrs) | HIPERCAM | Prompt GTC study of unidentified transient LMXBs discovered by the Einstein Probe |
| A | 38-GTC31-C/25B | Francesco Coti Zelati | 3 G (0.9hrs) | EMIR | Prompt GTC study of unidentified transient LMXBs discovered by the Einstein Probe |
| A | 76-GTC61/25B | Vikram Dhillon | G (4.8hrs) | HIPERCAM | Eclipse timing the Milky Way's gravitational potential using double white-dwarf binares |
| A | 81-GTC66/25B | Daniel Mata Sánchez | D (25hrs) | HIPERCAM | First optical detection of relativistic effects in a compact pulsar binary |
| B visitor | 125-GTC108/25B | Jerry Jun-Yan Zhang | A (40hrs) | EMIR | Metallicity constraints via CH4 of the most metal-poor T dwarfs |
| B | 19-GTC15-A/25B | Nancy Elias Rosa | G (10hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations |
| B | 19-GTC16-B/25B | Nancy Elias Rosa | G (13hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations |
| B | 77-GTC62/25B | Vikram Dhillon | A (14hrs) | HIPERCAM | A search for optical bursts from FRBs with HiPERCAM |
| B | 84-GTC69/25B | Silvia Mateos Ibañez | D (13.4hrs) | Osiris | Shedding light on the connection between galaxy mergers and AGN obscuration |
| B | 43-GTC35/25B | Alberto Javier Castro Tirado | 12 A (1.2hrs) | HIPERCAM | Minutes-duration Optical Flares in the Aftermath of an Extragalactic Transient |
| B | 54-GTC41-A/25B | Josefa Becerra González | 5 D (0.6hrs) | Osiris | Characterizing the electromagnetic counterparts of gravitational waves |
| B | 54-GTC42-B/25B | Josefa Becerra González | 5 A (0.6hrs) | EMIR | Characterizing the electromagnetic counterparts of gravitational waves |
| B | 54-GTC43-C/25B | Josefa Becerra González | 5 D (0.2hrs) | HIPERCAM | Characterizing the electromagnetic counterparts of gravitational waves |
| B | 69-GTC57/25B | Pau Amaro Seoane | 2 A (1.1hrs) | Osiris | Searching for optical high-energy neutrino counterparts |
| B | 6-GTC3/25B | Teodoro Muñoz Darias | 10 A (1hrs) | Osiris | X-ray Binary Transients: accretion disc winds and nebulae. |
| B | 103-GTC83-A/25B | Lluís Galbany | 8 A (1hrs) | Osiris | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| B | 103-GTC84-B/25B | Lluís Galbany | 8 A (2hrs) | EMIR | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| B | 24-GTC20-A/25B | David Jones | 12 G (1.8hrs) | Osiris | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| B | 24-GTC21-B/25B | David Jones | 12 A (1hrs) | EMIR | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| B | 128-GTC110-A/25B | Alberto Javier Castro Tirado | 3 A (2hrs) | Osiris | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 128-GTC111-B/25B | Alberto Javier Castro Tirado | 4 A (2hrs) | Osiris | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 128-GTC112-C/25B | Alberto Javier Castro Tirado | 4 A (1.5hrs) | EMIR | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 128-GTC113-D/25B | Alberto Javier Castro Tirado | 8 A (0.8hrs) | Osiris | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 128-GTC114-E/25B | Alberto Javier Castro Tirado | 8 A (0.5hrs) | EMIR | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 128-GTC115-F/25B | Alberto Javier Castro Tirado | 2 A (1hrs) | EMIR | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 128-GTC116-G/25B | Alberto Javier Castro Tirado | 2 A (1.5hrs) | Osiris | Investigating the physical origin and radiation mechanisms of long-duration GRBs |
| B | 47-GTC38/25B | Helmut Dannerbauer | A (16hrs) | EMIR | Confirmation of a masive protocluster z=2.24 with GTC/EMIR spectroscopy |
| B | 9-GTC7/25B | Giulia Golini | D (28hrs) | Osiris | Ultra-deep imaging of galaxies defying the cold dark matter model |
| B | 11-GTC9/25B | Chengzi Jiang | A (5.5hrs) | HIPERCAM | Validating a Cold Super-Earth at the Outer Edge of the Habitable Zone with GTC/HiPERCAM |
| B | 30-GTC25/25B | Michael Beasley | G (4.5hrs) | Osiris | Understanding the only globular cluster known which hosts a fast radio burst |
| B visitor | 50-GTC39/25B | María Rosa Zapatero Osorio | A (10hrs) | HIPERCAM | Preparing for the ARIEL mission: transiting brown dwarfs secondary eclipses |
| B | 64-GTC47/25B | NANDA REA | G (7.5hrs) | HIPERCAM | Characterizing the Third White Dwarf Pulsar with HiPERCAM: Establishing a New Class |
| B | 78-GTC63/25B | Angela Gardini | G (9.5hrs) | MEGARA | Sub-arcsecond spectroscopy of the FRB 20240114A host galaxy with MEGARA-IFU observations |
| B | 82-GTC67/25B | Nadejda Blagorodnova Mujortova | G (8.3hrs) | Osiris | Searching for luminous red nova precursors |
| B | 126-GTC109/25B | Armando Gil de Paz | 1 A (15hrs) | HIPERCAM | Simultaneous GBT and GTC Observations of Hyperactive FRBs for Optical Bursts |
| B | 120-GTC100-A/25B | José Feliciano Agüí Fernández | 6 A (1hrs) | EMIR | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| B | 120-GTC101-B/25B | José Feliciano Agüí Fernández | 1 A (3hrs) | EMIR | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| B | 120-GTC102-C/25B | José Feliciano Agüí Fernández | 7 A (1hrs) | HIPERCAM | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| B | 120-GTC103-D/25B | José Feliciano Agüí Fernández | 11 A (1.hrs) | Osiris | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| B | 130-GTC120-A/25B | María Caballero García | 5. A (0.8hrs) | Osiris | Unveiling the physical origin and emission mechanisms of short GRBs |
| B | 130-GTC121-B/25B | María Caballero García | 2 A (1hrs) | Osiris | Unveiling the physical origin and emission mechanisms of short GRBs |
| B | 130-GTC122-C/25B | María Caballero García | 2 A (1hrs) | Osiris | Unveiling the physical origin and emission mechanisms of short GRBs |
| B | 130-GTC123-D/25B | María Caballero García | 7 A (1hrs) | EMIR | Unveiling the physical origin and emission mechanisms of short GRBs |
| B | 46-GTC37/25B | Helmut Dannerbauer | A (17.2hrs) | EMIR | Characterizing a massive cosmic structure traced by quasar overdensity at z = 2.23 |
| B | 68-GTC56/25B | Joao Pedro Benedetti | D (33hrs) | Osiris | The role of environment in the residual star-formation in early-type galaxies |
| B | 114-GTC91/25B | Carina Fian | G (11hrs) | Osiris | Mass Fraction of Intracluster Compact Objects through Gravitational Microlensing |
| B | 96-GTC78/25B | Jordi Blanco Pozo | A (9.06hrs) | HIPERCAM | Probing TRAPPIST-1’s Stellar Surface Variability with Consecutive Transits |
| B | 57-GTC46/25B | Anna Ferré-Mateu | D (25hrs) | MEGARA | Constraining the never-seen-before [Mg/Fe] values of two ultra-diffuse galaxies |
| B | 13-GTC10/25B | Luca Costantin | G (16.5hrs) | MEGARA | Unveiling the fate of the Zwicky's nonet: a spatially-resolved study with MEGARA |
| B | 56-GTC45/25B | David Jones | G (4hrs) | Osiris | A double-degenerate contact binary inside a planetary nebula |
| B | 105-GTC85/25B | Roberto Raddi | A (29.5hrs) | Osiris | The missing population of hypervelocity subdwarfs: Leveraging theoretical models for observational follow up |
| B | 115-GTC92/25B | Alex Brown | D (4.25hrs) | HIPERCAM | Observing Three Potential Type Ia Supernova Progentiors |
| C | 20-GTC17/25B | David Jones | G (11.1hrs) | Osiris | Revealing type Ia supernovae progenitors through a survey of ultra-massive double white dwarf candidates |
| C | 18-GTC14/25B | Luca Costantin | G (15hrs) | MEGARA | The rise of bars in interacting galaxies |
| C | 31-GTC26/25B | Artemi Camps Fariña | G (6.5hrs) | MEGARA | A peculiar case of positive AGN feedback in an interacting pair of galaxies |
| C | 65-GTC48/25B | Jose M Diego Rodriguez | G (12hrs) | Osiris | Mass modelling of a triple merging cluster |
| C | 102-GTC82/25B | Enzo Agustin Saavedra | G (3hrs) | HIPERCAM | Quiescent optical flickering in the black hole X-ray binary MAXI J1820+070 |
| C | 27-GTC23/25B | Michael Beasley | G (28hrs) | MEGARA | M-SALSA - Megara Survey of Andromeda gLobular cluSter Abundances |
| C | 51-GTC40/25B | Jesús Gallego Maestro | D (10.7hrs) | Osiris | An observational test of the existence of a Golden Mass as the origin of the mass and environmental quenching in the galaxy formation and evolution scenario |
| C | 109-GTC89/25B | Carina Fian | G (8.6hrs) | Osiris | Extension of Rotation Curves in Quasar Inner Broad Line Regions |
| C | 14-GTC11/25B | Juan Luis Rizos Garcia | D (3hrs) | Osiris | Refining the orbital parameters of Jupiter’s irregular moon Kallichore to support a targeted flyby by ESA’s JUICE mission |
| C | 67-GTC52-D/25B | Ana Acebron Muñoz | D (26hrs) 2025B | Osiris | CELESTE: A gtC spEctroscopic Legacy programme of Euclid STrong lEnses |
| C | 80-GTC65/25B | Francisco José Galindo Guil | G (49.5hrs) | Osiris | A lithium depletion age scale based on GTC: increasing the sample |
| C | 10-GTC8/25B | Enrique Miguel García Zamora | A (18hrs) | Osiris | Unveiling the true nature of helium-atmosphere massive white dwarf candidates |
| C | 23-GTC19/25B | Aina Ferrer Burjachs | G (32.9hrs) | Osiris | Hierarchical triple systems containing white dwarfs |
| C | 22-GTC18/25B | Alberto Rebassa Mansergas | A (59hrs) | HIPERCAM | HiPERCAM follow-up observations of 14 ultramassive pulsating white dwarf candidates |
| C | 93-GTC74/25B | Alex Brown | G (25hrs) | HIPERCAM | Searching for imprints of the common-envelope phase on the internal structure of white dwarfs |
| C | 101-GTC81/25B | Enzo Agustin Saavedra | G (4.2hrs) | HIPERCAM | Fast multi-colour optical variability of the ultracompact X-ray binary 4U 0614+091 |
| C | 40-GTC33/25B | Jose M Diego Rodriguez | G (16hrs) | Osiris | Enabling dark matter modelling of a collisional massive cluster at z=0.822 |
| C | 75-GTC59-A/25B | Alberto Dominguez | D (2.7hrs) | Osiris | Relics, Reactivated Jets, or Misaligned AGN? Probing the Nature of Extreme Gamma-ray Blazars |
| C | 75-GTC60-B/25B | Alberto Dominguez | D (4hrs) | EMIR | Relics, Reactivated Jets, or Misaligned AGN? Probing the Nature of Extreme Gamma-ray Blazars |
| C | 87-GTC70/25B | David Garcia Alvarez | A (30hrs) | EMIR | Accretion in protoplanetary discs in the energetic environment of CygnusOB2 |
| C | 29-GTC24/25B | Jose Alfonso Lopez Aguerri | D (37.687hrs) | MEGARA | The quenching of dwarf galaxies in the infall region of the Virgo cluster |
| C | 32-GTC27/25B | Sandra Zamora Arenal | G (5hrs) | MEGARA | Probing the AGN feedback effect in the Circumnuclear Starforming Regions of NGC 1068 |
| C | 106-GTC86-A/25B | Pablo Rodríguez Gil | A (3hrs) | Osiris | Precise Characterisation of Newly Identified Very Cool Companions to White Dwarfs with HiPERCAM and OSIRIS+ |
| C | 106-GTC87-B/25B | Pablo Rodríguez Gil | G (29.5hrs) | HIPERCAM | Precise Characterisation of Newly Identified Very Cool Companions to White Dwarfs with HiPERCAM and OSIRIS+ |
| Filler | 39-GTC32/25B | Julia de Leon Cruz | A (20hrs) | Osiris | Visible spectra of newly discovered NEAs, PHAs, and NEAs accesible to spacecraft |
| Filler | 117-GTC94-A/25B | Ignacio Negueruela Díez | A (16hrs) | Osiris | DYNOSTAR II: Star formation in the Outer Milky Way |
| Filler | 117-GTC95-B/25B | Ignacio Negueruela Díez | A (20hrs) | EMIR | DYNOSTAR II: Star formation in the Outer Milky Way |
| Filler | 16-GTC13/25B | Gerard Garcia Moreno | A (8.79hrs) | Osiris | Spectral classification of mass-transferring binaries in the Milky Way |
| Filler | 1-GTC1/25B | Jesús Maíz Apellániz | A (60hrs) | Osiris | Spectroscopic follow-up of the cross-match of the OB stars in the ALS catalog with Gaia |
| Filler | 118-GTC96-A/25B | Claudia Gutiérrez Avendaño | A (8hrs) | EMIR | Near-Infrared Study of Type Ibn/Icn Supernova Host Galaxies |
| Filler | 118-GTC97-B/25B | Claudia Gutiérrez Avendaño | D (0.5hrs) | HIPERCAM | Near-Infrared Study of Type Ibn/Icn Supernova Host Galaxies |