\\ Anyone think they know what the tilt of the EIS slit is? Ken Dere --[129.174.112.201|http://null], 25-Apr-2007 ---- And how linear is it (and where, if at all)? --[David R Williams|DavidRWilliams], 03-May-2007 ---- The slit tilt is not fully understood and some further calibration studies need to be run. Preliminary work has been done, so for example Peter Young has produced a short document on this. [TiltFiles | TiltOfEISslit/spectral_tilt.ps] --[Louise Harra|http://null], 14-May-2007