gistfile1.txt

#ASDF 1.0.0
#ASDF_STANDARD 1.5.0
%YAML 1.1
%TAG ! tag:stsci.edu:asdf/
--- !core/asdf-1.1.0
asdf_library: !core/software-1.0.0 {author: Space Telescope Science Institute, homepage: 'http://github.com/spacetelescope/asdf',
  name: asdf, version: 2.6.0}
history:
  extensions:
  - !core/extension_metadata-1.0.0
    extension_class: astropy.io.misc.asdf.extension.AstropyAsdfExtension
    software: !core/software-1.0.0 {name: astropy, version: 4.1rc1}
  - !core/extension_metadata-1.0.0
    extension_class: asdf.extension.BuiltinExtension
    software: !core/software-1.0.0 {name: asdf, version: 2.6.0}
  - !core/extension_metadata-1.0.0
    extension_class: gwcs.extension.GWCSExtension
    software: !core/software-1.0.0 {name: gwcs, version: 0.13.1.dev19+gc064a02}
wcs: !<tag:stsci.edu:gwcs/wcs-1.0.0>
  name: ''
  steps:
  - !<tag:stsci.edu:gwcs/step-1.0.0>
    frame: !<tag:stsci.edu:gwcs/frame-1.0.0>
      axes_names: [x]
      axes_order: [0]
      axes_type: [SPATIAL]
      axis_physical_types: ['custom:SPATIAL']
      name: pixels
      naxes: 1
      unit: [!unit/unit-1.0.0 pixel]
    transform: !transform/ortho_polynomial-1.0.0
      coefficients: !core/ndarray-1.0.0
        data: [741.916267276132, -235.33753997350559, 1.6500928294403676, 0.10803283390236992,
          0.0063189711392429545]
        datatype: float64
        shape: [5]
      domain: [0, 3132]
      inverse: !transform/ortho_polynomial-1.0.0
        coefficients: !core/ndarray-1.0.0
          data: [1554.9670234806524, 1565.122897803123, 10.96255985557231, 0.8698496224651423,
            0.06985298943194419]
          datatype: float64
          shape: [5]
        domain: [978.8021862163148, 508.3431719371084]
        polynomial_type: chebyshev
        window: [-1, 1]
      name: WAVE
      polynomial_type: chebyshev
      window: [-1, 1]
  - !<tag:stsci.edu:gwcs/step-1.0.0>
    frame: !<tag:stsci.edu:gwcs/spectral_frame-1.0.0>
      axes_names: ['']
      axes_order: [0]
      axis_physical_types: [em.wl]
      name: world
      unit: [!unit/unit-1.0.0 nm]
...