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The ViSP instrument scientist has supplied a better approximate calibration of the wavelength in the 3 arms, show below in pseudo IDL code.
630nm = 629.495+findgen(1000)*1.285/1000. ; dispersion 1.285 pm /px
397nm = 396.418+findgen(1000)*0.77/1000. ; dispersion 0.77 pm / px
854nm = 853.182+findgen(1000)*1.882/1000. ; dispersion 1.882 pm / px
The ViSP data has incorrect pointing information in the WCS headers. This is not currently correctable.
Lack of ASDF files
Please note that the current release of ViSP data does not contain ASDF files in the data set directories. This is because of a downstream issues caused by bad WCS headers which prevented the ASDF files from being generated. A fix for the issue has been identified and will be implemented in the next calibration run.
Optical & Algorithm Improvements & Mitigations
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