SYSTEM: V2.10-V2.10.4p2
NUMBER: 364 MODULE: onedspec SYSTEM: V2.10-V2.10.4p2 DATE: Tue Mar 4 11:55:48 MST 1997 FROM: valdes BUG: The coordinate function driver, the system software that evaluates coordinates, for multispec format spectra incorrectly inverts wavelengths to pixels for the case of log sampled coordinates with a doppler shift. This will cause various tasks to misbehave such as equivalent width measurements in SPLOT. The log sampling occurs when using DISPCOR with log=yes and the doppler shift is added to the coordinate system when DOPCOR is run. The workaround is to not run DOPCOR on log sampled multispec spectra (such as echelle data) and correct any measurements made for doppler shifts after the fact. To determine if you have this type of format you will 'specN=' strings in WAT keywords. In these strings the third number will be 1 for log sampling and the seventh number will be non-zero for the doppler correction. STATUS: Fixed in the next release.