The IRES instrument (Intermediate Resolution Echelle Spectrometer) is a fiber-fed echelle spectrometer with a resolution (R ~ 7,000, Δλ~ 0.5A) over the range 400 nm — 700 nm. It is currently (January 2017) in beta-test mode. It is fully functional, but the robotic operation and calibration software is under active development.
A description of the echelle equipment and sample spectra will be added shortly.
A sample 10s raw echellogram of the star Aldebaran (K5III), which has 100’s of lines, is shown below.