| Ref. CAT | PI | Number nights | Instrument | Large program | Program |
|---|
| 4-INT1/23B | Iker Gonzalez Santamaria | 4 D | IDS | - | Chemical abundances and evolutionary state of planetary nebulae with accurate distances in Gaia DR3 |
| 24-INT2-D/23B | Alberto Javier Castro Tirado | 30 A (1hrs) | WFC | - | GTC follow-up of gravitational radiation sources in the Multi-messenger Era |
| 63-INT3-A/23B | Marusa Zerjal | 1 A + 4 G | IDS | - | Chronological study of the low-mass population of the sigma Orionis open cluster |
| 76-INT4/23B | Yuheng Zhang | 5 D | WFC | - | Mapping Qasar-Traced Massive Overdensities with Lya Emitters at z~2.2 |
| 104-INT5/23B | Virginia Cúneo | 2 G | IDS | - | Testing the orbital evolution of disc winds in Accreting White Dwarfs |
| 106-INT6-A/23B | Matteo Monelli | 3 G | WFC | - | Homogeneous photometry in the Gaia era: understanding the formation of globular clusters |
| 106-INT7-C/23B | Matteo Monelli | 4 G | WFC | - | Homogeneous photometry in the Gaia era: understanding the formation of globular clusters |
| 107-INT8-A/23B | Raúl de la Fuente Marcos | 5 A | WFC | - | Detection of Near Earth Asteroids Using Synthetic Tracking |
| 107-INT9-B/23B | Raúl de la Fuente Marcos | 5 A (1hrs) | WFC | - | Detection of Near Earth Asteroids Using Synthetic Tracking |
| 108-INT10-A/23B | Maria Kopsacheili | 1 D | WFC | - | Supernova Remnants in the nearby starburst galaxy IC 342 |
| 117-INT11/23B | Ignacio Trujillo Cabrera | 4 D + 5 A + 2 D + 3 A | WFC | - | Deep Halpha imaging of the LIGHTS galaxy survey |
| 125-INT15/23B | Jairo Mendez Abreu | 3 D + 2 G | WFC | - | THE LOW-SURFACE BRIGHTNESS STRUCTURE of BULGELESS GALAXIES |
| ULL | Ismael Pérez Fournón | 2 A | WFC | - | Master of the ULL |