The night “Comisión de Asignación de Tiempos” (CAT) evaluates the observing proposals that guarantee to the Spanish community access to the majority of the night telescopes at the “Observatorios de

Access to some telescopes is granted though specific agreements between the IAC and external institutions or consortia. The data are available to the IAC community through collaboration with the PIs

Observing nights are offered to the CAT astrophysical community as part of Spain’s allocated observing time (CAT) on the INT, NOT, and TNG, and 6 h “Reactive Time” is available to the CAT on the