Example of data

γ_mfs = 0.7 cm

γ_hsfa = 0.8 cm

D_{sun_slit} = F × (2ρ)^[rad] [cm]

(F_mfs = 13500 mm, F_hsfa = 35000 mm)

• A procedure for calibrating fits images from Ondrejov Multichannel Flare Spectrograph