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JWST

Adapted from ADASS 2024 workshop.

Reading an ASDF file

using ASDF

af = ASDF.load_file("../../data/jwst.asdf")

af.metadata

img_sci = let
    img = af.metadata["data"][]
    img[img .< 0] .= 1
    img
end

And plot:

using CairoMakie

fig, ax, hm = heatmap(img_sci;
    colorrange = (1, 1e3),
    colorscale = log10,
    colormap = :cividis,
    nan_color = :lime, # NaNs are handled automatically
)

Colorbar(fig[1, 2], hm)

fig