Revise formulation to make it easier to apply
Allow non-linear polynomial forms (instead of offset?)
Add global attribute to define form of GSICS correction
Add corrected calibration coefficients
24/7 fucntionality
Accounting for diurnal calibration variations
Covering full range of radiances
Add radiance_validity range
Uncertainty growth beyond validity range
Provided with Realistic uncertainty estimates
Uncertainty growth beyond validity period
RAC/NRTC/ARC?
Bias Monitoring?
Merge with VIS/NIR?