DATAMIN, DATAMAX and BUNIT in FITS header for each product

[nicHoch]

'DATAMIN'  > 'Minimum valid physical value'
'DATAMAX' > 'Maximum valid physical value'
'BUNIT' > 'Units of physical value, after application of BSCALE, BZERO'

are fits header keywords used by SOAR for user filtering... as some products have multiple data-streams we have to decide for the "most interesting one"

so fare we only provide real values for count data

'DATAMIN'  =  max('counts')
'DATAMAX' = max('counts')
'BUNIT' = "counts"

• ql-lightcurve
• ql-background
• ql-spectra
• xray-scpd
• xray-cpd
• xray-rpd

open to decide: currently proposals

• xray-vis
• aspect-burst min/max(cha_diode0, cha_diode, chb_diode0, chb_diode1)
• ql-variance
• ql-flareflag min/max(loc_y, loc_z) unit ?
• cal-energy
• tmstatusflarelist
• hk-mini
• hk-maxi
• aux-ephemeris: min/max(y_srf, z_stf) unit km

[samaloney]

It would be really usefull to add explain, expmax for the shortest and longest exposure time too.

[nicHoch]

i added a "XPOMAX" keyword with the longest exposure time: self.data['timedel'].as_float().max().to_value('s')

[samaloney]

To #393 or somewhere else?