| Band | Ref. CAT | PI | Awarded hours | Instrument | Title |
|---|
| A | 45-GTC41/26A | Jose Luis Ortiz Moreno | A (0.3hrs) | HIPERCAM | Study of the dwarf planet Haumea through a unique event on 2026 May 4th with GTC |
| A | 81-GTC78-A/26A | Nancy Elias Rosa | G (10.hrs) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations. |
| A | 81-GTC79-B/26A | Nancy Elias Rosa | G (13.) | Osiris | Peeking into the Very Center of Stellar Explosions with GTC Nebular Observations. |
| A | 59-GTC55-A/26A | Ignacio Martín-Navarro | A (50.hrs) | EMIR | The GTC InfraRed Medium resolution stellAr library |
| A | 24-GTC21-A/26A | Francesco Coti Zelati | 3. G (1.hrs) | Osiris | Prompt GTC study of unidentified transient LMXBs discovered by the Einstein Probe |
| A | 24-GTC22-B/26A | Francesco Coti Zelati | 3. D (1.2hrs) | HIPERCAM | Prompt GTC study of unidentified transient LMXBs discovered by the Einstein Probe |
| A | 24-GTC23-C/26A | Francesco Coti Zelati | 3. G (0.9hrs) | EMIR | Prompt GTC study of unidentified transient LMXBs discovered by the Einstein Probe |
| A | 141-GTC131-A/26A | Stefan Geier | 17. A (1.hrs) | Osiris | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| A | 141-GTC132-B/26A | Stefan Geier | 5. A (1.hrs) | EMIR | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| A | 141-GTC133-C/26A | Stefan Geier | 22. A (0.5hrs) | HIPERCAM | The variety of GRB progenitors in the SVOM and Einstein Probe era |
| A | 106-GTC94/26A | Cristina Ramos Almeida | D (30.hrs) | Osiris | Characterizing the gaseous environments of accreting black holes in six “Little Red Dots” at z=0.2-0.4 with GTC/OSIRIS |
| A | 8-GTC10-A/26A | Daniel Mata Sánchez | 5 A (1hrs) | HIPERCAM | Understanding the origin of fast X-ray transients discovered with Einstein Probe |
| A | 8-GTC11-B/26A | Daniel Mata Sánchez | 2 A (1hrs) | EMIR | Understanding the origin of fast X-ray transients discovered with Einstein Probe |
| A | 8-GTC12-C/26A | Daniel Mata Sánchez | 5 A (1.5hrs) | Osiris | Understanding the origin of fast X-ray transients discovered with Einstein Probe |
| A visitor | 122-GTC112/26A | Jerry Jun-Yan Zhang | A (14.hrs) | EMIR | Constraining the rotational variability of the closest metal-poor brown dwarf |
| B | 135-GTC127/26A | Cristina Cabello González | D (24.hrs) | MEGARA | Local Clues to a Distant Epoch: Spatially Resolved Study of Low-Metallicity Dwarf Galaxies |
| B | 39-GTC36/26A | Raúl de la Fuente Marcos | 2. A (6.5hrs) | Osiris | Investigating the next interstellar visitor with GTC/OSIRIS |
| B | 57-GTC50-A/26A | David Jones | 12. G (1.8hrs) | Osiris | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| B | 57-GTC51-B/26A | David Jones | 12. A (1.hrs) | EMIR | Multi-wavelength target of opportunity follow-up of newly-discovered luminous red novae |
| B | 63-GTC61/26A | Nicolas Lodieu | A (12.7hrs) | EMIR | Hunting the First Metal-Poor Brown Dwarf Companions |
| B | 22-GTC20/26A | Ignacio Trujillo Cabrera | D (4.4hrs) | HIPERCAM | Probing a New Population of Almost-Dark, Extended Galaxies in the Coma Cluster with HiPERCAM |
| B | 70-GTC72/26A | Ana Acebron Muñoz | D (8.hrs) | Osiris | A GTC/Osiris+ view of the first Einstein zigzag lens for a robust H0 measurement |
| B | 11-GTC15/26A | Ignacio Trujillo Cabrera | D (4.4hrs) | HIPERCAM | Deep HiPERCAM Imaging of the Starless Galaxy Candidate M94-CL9 |
| B | 108-GTC96/26A | Anelise Audibert | D (15.hrs) | MEGARA | Compact jets as drivers of multi-phase outflows in high-luminosity quasars? |
| B | 3-GTC2-A/26A | Lluís Galbany | 8 A (1hrs) | Osiris | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| B | 3-GTC3-B/26A | Lluís Galbany | 8 A (2hrs) | EMIR | Rapid ToO Spectroscopy of Infant Supernovae with GTC in the optical and NIR |
| B | 26-GTC25/26A | Nada Ihanec | G (4.hrs) | HIPERCAM | Investigating the nature of Ibn/Icn SNe with late time photometry |
| B | 113-GTC100/26A | Jerry Jun-Yan Zhang | G (8.3hrs) | EMIR | Direct detection of a substellar companion to a black widow pulsar |
| B | 10-GTC14/26A | Lluís Galbany | A (3.hrs) | EMIR | The most precise Near-infrared Hubble Diagram |
| B | 17-GTC19/26A | Pablo Rodríguez Gil | G (7.6hrs) | HIPERCAM | Understanding the formation of the most compact binaries in the Universe |
| B | 56-GTC49/26A | Michael Beasley | A (38.hrs) | EMIR | EMIR spectroscopy of super super-solar globular clusters in the Sombrero galaxy |
| B | 13-GTC16/26A | Teodoro Muñoz Darias | 10. A (1.hrs) | Osiris | X-ray Binary Transients: accretion disc winds and nebulae. |
| B | 30-GTC28/26A | Mar Mezcua Pallerola | A (13.1hrs) | Osiris | Photometric continuum and broad-line reverberation mapping of a prototype IMBH in POX 52 |
| B | 87-GTC83-A/26A | Giovanni Miniutti | G (2.hrs) | Osiris | Spectral follow-up of the exceptionally slow TDE candidate AT2020ukj |
| B | 87-GTC84-B/26A | Giovanni Miniutti | G (2.hrs) | Osiris | Spectral follow-up of the exceptionally slow TDE candidate AT2020ukj |
| B | 101-GTC92/26A | Cesar Esteban Lopez | D (7.5hrs) | Osiris | Improving the determination of Fe abundances in star-forming regions |
| B | 105-GTC93/26A | María Camisassa | A (10.4hrs) | HIPERCAM | Massive, rapidly rotating, magnetic white dwarfs |
| B | 67-GTC69-B/26A | Miguel R. Alarcon | 25. G (0.8hrs) | Osiris | Probing cohesion and composition in the fastest-spinning Near-Earth Asteroids |
| B | 129-GTC116/26A | Maria Delgado Mancheño | A (8.hrs) | EMIR | The Role of Interactions in Triggering AGN and Star Formation in Extreme Emission-Line Galaxies |
| B | 147-GTC142/26A | Nadejda Blagorodnova Mujortova | G (9.2hrs) | Osiris | Searching for luminous red nova precursors |
| B | 83-GTC80/26A | Silvia Mateos Ibañez | D (24.2hrs) | Osiris | Shedding light on the connection between galaxy mergers and AGN obscuration |
| B | 44-GTC40/26A | David Garcia Alvarez | A (15.hrs) | EMIR | Spectroscopic follow-up of new eruptive young star candidates found with ZTF |
| B | 55-GTC48/26A | Alex Brown | D (2.8hrs) | HIPERCAM | Observing the Orbital Decay of Three Potential Type Ia Supernova Progentiors |
| B | 51-GTC46/26A | Maria Cruz Galvez Ortiz | A (30.4hrs) | EMIR | High proper motion T subdwarfs: EMIR spectra to probe metal-poor ultracool atmospheres |
| B | 25-GTC24/26A | Mireia Montes Quiles | D (20.hrs) | HIPERCAM | Ultra-deep imaging of galaxies defying the cold dark matter model |
| B | 121-GTC111/26A | Cristina Catalán Torrecilla | D (10.8hrs) | MEGARA | Pinpointing FRB Progenitors with MEGARA: Sub-kpc IFU Spectroscopy of FRB 20250316A and 20180916B |
| B | 28-GTC26/26A | Frédérick Poidevin | D (9.hrs) | Osiris | Spectroscopic confirmation of high-redshift superluminous supernova candidates from Euclid |
| B | 125-GTC114-C/26A | SARA RASTELLO | 10. A (1.hrs) | Osiris | Luminous flares from galactic nuclei in the LSST era |
| B | 146-GTC140-A/26A | Oscar Porqueras Leon | A (10.59hrs) | Osiris | Spectrophotometric Characterisation of the Stellar Surfaces of LHS-1140 and TOI-1801 During Planetary Transits Observed with JWST |
| B | 146-GTC141-B/26A | Oscar Porqueras Leon | A (3.22hrs) | Osiris | Spectrophotometric Characterisation of the Stellar Surfaces of LHS-1140 and TOI-1801 During Planetary Transits Observed with JWST |
| B | 36-GTC34-A/26A | Alberto Rebassa Mansergas | G (7.8hrs) | Osiris | Confirming the first eccentric double white dwarf binary |
| B | 36-GTC35-B/26A | Alberto Rebassa Mansergas | G (6.5hrs) | HIPERCAM | Confirming the first eccentric double white dwarf binary |
| B | 47-GTC42/26A | David Aguado | G (3.hrs) | Osiris | Constraining the distance of the extremely metal-poor stream C-19 with RR Lyrae variables |
| B | 49-GTC44/26A | María Camisassa | G (15.hrs) | HIPERCAM | Investigating the core composition of massive WDs in PCEBs |
| B | 142-GTC134/26A | Vikram Dhillon | A (7.hrs) | HIPERCAM | Eclipse timing the Milky Way's gravitational potential using main-sequence binaries |
| B | 130-GTC117-A/26A | Marusa Zerjal | A (21.hrs) | EMIR | GTC follow-up spectroscopy of metal poor ultracool dwarfs in Euclid |
| B | 130-GTC118-B/26A | Marusa Zerjal | D (21.hrs) | Osiris | GTC follow-up spectroscopy of metal poor ultracool dwarfs in Euclid |
| B | 90-GTC86/26A | Armando Gil de Paz | 1 A (15hrs) | HIPERCAM | Simultaneous GBT and GTC Observations of Hyperactive FRBs for Optical Bursts |
| B | 114-GTC101/26A | Josefa Becerra González | D (5hrs) | Osiris | SDSS J1430+2303: Probing a Potential Supermassive Black Hole Merger |
| C | 40-GTC37-A/26A | Chengzi Jiang | A (5.hrs) | HIPERCAM | Validating Habitable-Zone Sub-Neptune Candidates Amenable to Atmospheric Characterization |
| C | 40-GTC38-B/26A | Chengzi Jiang | A (6.hrs) | HIPERCAM | Validating Habitable-Zone Sub-Neptune Candidates Amenable to Atmospheric Characterization |
| C | 148-GTC143/26A | Eri Tatsumi | A (5.4hrs) | HIPERCAM | Revealing the Origin of the Extremely Young Asteroid Pair 2010 UM$_{26}$--2010 RN$_{221}$ via Simultaneous Precise Photometry |
| C | 48-GTC43/26A | Luca Costantin | A (15.hrs) | EMIR | A Milky Way-like barred spiral galaxy beyond Cosmic Noon |
| C | 52-GTC47/26A | Bo Huang | G (4.hrs) | Osiris | Measuring the mass of the redback pulsar J1838+3224 |
| C | 29-GTC27/26A | Mar Mezcua Pallerola | D (12.hrs) | HIPERCAM | Continuum reverberation mapping of a robust intermediate-mass black hole candidate |
| C | 50-GTC45/26A | Bahar Bidaran | G (7.hrs) | Osiris | Black Hole Accretion in Ultra-Compact Dwarf galaxies: Linking X-ray Emission to Star Formation Histories |
| C | 64-GTC62-A/26A | Ana Acebron Muñoz | D (30.hrs) | Osiris | CELESTE: A gtC spEctroscopic Legacy programme of Euclid STrong lEnses |
| C | 140-GTC130/26A | Stefan Geier | A (16.8hrs) | EMIR | Where is the galaxy counterpart of the Damped Lyman-alpha Absorber towards GQ1218+0832? |
| C | 145-GTC139/26A | Rubén García Benito | G (50.hrs) | Osiris | Galactic Chemical Evolution and Stellar Population Revealed through GTC/OSIRIS Spectroscopy of Compact Planetary Nebulae |
| C | 111-GTC99/26A | Armando Gil de Paz | D (15.5hrs) | Osiris | Mass profile of the galaxy cluster Abell 2390 using the Caustic technique |
| C | 115-GTC102/26A | David Garcia Alvarez | A (12.hrs) | EMIR | Classification and analysis of eruptive young star candidates |
| C | 89-GTC85/26A | Nataliya Ramos Chernenko | A (25.2hrs) | EMIR | Unveiling galaxy protoclusters at Cosmic Noon |
| C | 71-GTC73/26A | Aina Ferrer Burjachs | A (10.hrs) | Osiris | Hierarchical triple systems containing white dwarfs |
| C | 4-GTC4/26A | Luca Costantin | G (15hrs) | MEGARA | The rise of bars in interacting galaxies |
| C | 62-GTC60/26A | Maria Luisa Garcia Vargas | A (20.hrs) | MEGARA | MegaPopStar. Filling the gaps in H-R stellar parameters by observing MEGASTAR weak sources in visitor mode |
| Filler | 133-GTC119/26A | Ignacio Negueruela Díez | A (35.hrs) | Osiris | The distant and obscured Milky Way |
| Filler | 34-GTC32/26A | Julia de Leon Cruz | A (20.hrs) | Osiris | Visible spectra of newly discovered NEAs, PHAs, and NEAs accesible to spacecraft |
| Filler | 61-GTC59/26A | Maria Luisa Garcia Vargas | A (75.hrs) | MEGARA | MEGASTAR. Filling the gaps in stellar parameters. |
| Filler | 9-GTC13/26A | Gerard Garcia Moreno | A (8.19hrs) | Osiris | Spectral classification of mass-transferring binary candidates in the Milky Way |
| Filler | 110-GTC98/26A | Roberto Raddi | A (52.6hrs) | Osiris | A triple perspective on stellar evolution |
| Filler | 1-GTC1/26A | Jesús Maíz Apellániz | A (60.hrs) | Osiris | Spectroscopic follow-up of the cross-match of the OB stars in the ALS catalog with Gaia |
| Filler | 109-GTC97/26A | David Jones | A (22.5hrs) | Osiris | HOTFUSS@GTC: HOT Faint Underluminous Stars Surveyed with GTC-OSIRIS+ |