Created 08/06/07 by EF
Updated 01/06/11 by EF
The design is a high-throughput fiber-fed echelle. It is cross-dispersed, yielding a passband of 390-910 nm. It accommodates 3 optical fiber pairs (science+sky) and offers 3 resolutions, 60K, 48K and 30K. TRES will supersede the current Echelle spectrograph at the 1.5m, resulting in much greater observing efficiency (see the links below).