clean GRIS header
After discussing with Manolo and Carlos while working on the slit orientation issue I found out that some of the values we are propagating in the GRIS header are not correct, they might:
- be historic values such as
SLITORIE
which do not have a well-defined or obvious function - be values that apply only to observations but not single slit positions (e.g.
AZIMUT
,ELEVATION
) - be unreliable due to different ephemerides code used for producing them/not be compliant with the telescope's definitions (again
AZIMUTH
)
For fully consistent headers, we would need to go through each value, assess the definition and validity, document that and throw out all confusing values.