| Clas. | Ref. CAT | PI | Number hours | Instrument | Program |
|---|
| A Visitor | 154-GTC142/23B | Pablo Rodríguez Gil | G (10hrs) | HIPERCAM | GTC+HiPERCAM to revolutionise our understanding of the evolution of accreting ultracompact binaries |
| A Visitor | 159-GTC147/23B | Anna Francesca Pala | G (6hrs) | HIPERCAM | Probing the final stage of cataclysmic variable evolution: high-speed photometry of the most evolved systems |
| A | 129-GTC117/23B | Riccardo Scarpa | A (6.5hrs) | HIPERCAM | Blazar short term flux variability |
| A Visitor | 142-GTC130/23B | Vikram Dhillon | D (6.4hrs) | HIPERCAM | A search for optical pulsations in the isolated neutron star RBS 1774 |
| A | 145-GTC133/23B | Vikram Dhillon | 3 A (1hrs) | HIPERCAM | High-cadence optical monitoring of the magnetar SGR 1935+2154 during its active phase |
| B Visitor | 131-GTC119/23B | Alberto Rebassa Mansergas | G (8hrs) | HIPERCAM | High-speed photometric follow-up of 10 eclipsing white dwarf plus brown dwarf binaries |
| B | 148-GTC136/23B | Jose Luis Ortiz Moreno | 5 A (0.3hrs) | HIPERCAM | Search for narrow rings around TNOs and Centaurs through stellar occultations |
| B | 147-GTC135/23B | Alice Borghese | 1 A (4.32hrs) | HIPERCAM | Hunting for optical flashes from the FRB-like magnetar |
| B | 153-GTC141/23B | Pablo Rodríguez Gil | D (31hrs) | HIPERCAM | Measuring orbital evolution due to gravitational wave emission, tides, and mass transfer in twenty-three ultra-tight binaries |
| B | 156-GTC144/23B | Montserrat Armas Padilla | G (7hrs) | HIPERCAM | The true nature of the X-ray binary 4U 1822-00: ultracompact or progenitor? |
| B | 136-GTC124/23B | Eduardo Martin Guerrero de Escalante | 6 D (1hrs) | HIPERCAM | Optical characterization of infant free-floating jupiters detected with Euclid |
| B | 135-GTC123/23B | Eduardo Martin Guerrero de Escalante | D (2.5hrs) | HIPERCAM | Testing water cloud condensation models in a room-temperature isolated substellar object |
| B Visitor | 138-GTC126/23B | Jaume Orell Miquel | A (9hrs) | HIPERCAM | Validation of rocky planets in the Habitable Zone with GTC |
| B | 141-GTC129/23B | Francesco Coti Zelati | G (6.32hrs) | HIPERCAM | Unraveling Mode Switching in Transitional Millisecond Pulsars through optical high-time resolution observations |
| B Visitor | 144-GTC132/23B | Alice Borghese | D (12.5hrs) | HIPERCAM | The optical counterpart of a repeating Fast Radio Burst |
| B | 160-GTC148/23B | Helmut Dannerbauer | D (12.5hrs) | HIPERCAM | Revealing Protocluster Core Growth Around Powerful Radio Galaxies Across the Cosmic Noon |
| C | 137-GTC125/23B | Manuel Ángel Pérez Torres | G (3hrs) | HIPERCAM | Determining the host of 3 Fast X-ray Transients: towards understanding their origin |
| C | 126-GTC114/23B | Pablo Santos Sanz | G (17hrs) | HIPERCAM | Size distribution of extremely small trans-Neptunian Objects |
| C | 151-GTC139/23B | Hannu Parviainen | D (8hrs) | HIPERCAM | Solving the elusive nature of transiting exoplanet candidate TOI-2283.01 |
| C | 132-GTC120/23B | David Garcia Alvarez | A (4.75hrs) | HIPERCAM | Why do many low mass rapidly rotating stars appear to be flare inactive? |
| C | 127-GTC115/23B | Johan Knapen | G (6hrs) | HIPERCAM | The truncated accretion disc in the low-mass AGN in NGC 4395 |
| C | 130-GTC118/23B | Alberto Rebassa Mansergas | G (6hrs) | HIPERCAM | High-speed photometric follow-up of 6 eclipsing WD+MS binaries harbouring magnetic white dwarfs |
| C | 146-GTC134/23B | Alberto Rebassa Mansergas | A (7.6hrs) | HIPERCAM | Towards a volume-limited sample of eclipsing WD+MS binaries |
| C | 155-GTC143/23B | Francesco Coti Zelati | D (2.16hrs) | HIPERCAM | Hunting for Optical Pulsations and Quasi-Periodic Oscillations in a pulsating Ultraluminous X-ray Source |
| C | 158-GTC146/23B | Tariq Shahbaz | G (12hrs) | HIPERCAM | Optical/X-ray timing studies of X-ray binaries |
| C | 139-GTC127/23B | Johan Knapen | A (10hrs) | HIPERCAM | Using intra-night, multicolour variability of blazars to constrain emission models and jet dynamics |