| Ref. CAT | PI | Awarded number of nights | Instrument | Large program | Title |
|---|
| 5-Mercator1/21A | David Barrado Navascués | 6 G | HERMES | - | History of star formation in Upper Sco and Ophiuchus |
| 20-Mercator2/21A | Gonzalo Holgado Alijo | 3 A | HERMES | - | Missing spectra in the further detection and characterization of binaries among fast-rotating Galactic O-type stars |
| 47-Mercator3/21A | Rafael Luque | 6 G | HERMES | - | PiGS: non-transiting Planets in Giant Stars from TESS |
| 48-Mercator4/21A | Nicolas Lodieu | 2 G (4.5hrs) | HERMES | - | The metallicity of the young Group 29 |
| 53-Mercator5-A/21A | Juan Carbajo Hijarrubia | 9 A | HERMES | - | OCCASO survey: checking azimuthal distribution of Open Clusters |
| 64-Mercator6/21A | Lee Patrick | 3 A | HERMES | - | Multiplicity properties of red supergiant population of the Perseus OB1 association |