| A | Telescope.Data.WCS |
| add1s | Telescope.Fits.Checksum |
| addBlock | Telescope.Asdf.Encoding.Stream |
| addComment | Telescope.Fits.Header.Keyword, Telescope.Fits.Header, Telescope.Fits |
| addNodeAnchor | Telescope.Asdf.Encoding.Stream |
| Affine | |
| 1 (Type/Class) | Telescope.Asdf.GWCS |
| 2 (Data Constructor) | Telescope.Asdf.GWCS |
| Alias | Telescope.Asdf.Node, Telescope.Asdf |
| Alpha | Telescope.Asdf.GWCS |
| Anchor | |
| 1 (Type/Class) | Telescope.Asdf.Node, Telescope.Asdf |
| 2 (Data Constructor) | Telescope.Asdf.Node, Telescope.Asdf |
| anchor | Telescope.Asdf.Class, Telescope.Asdf |
| Anchors | |
| 1 (Type/Class) | Telescope.Asdf.Node |
| 2 (Data Constructor) | Telescope.Asdf.Node |
| AnchorUndefined | Telescope.Asdf.Encoding.Stream |
| Arcseconds | Telescope.Asdf.Core |
| Array | |
| 1 (Type/Class) | Telescope.Fits |
| 2 (Data Constructor) | Telescope.Asdf.Node, Telescope.Asdf |
| ArrayError | Telescope.Data.Array |
| Asdf | |
| 1 (Type/Class) | Telescope.Asdf.Core, Telescope.Asdf |
| 2 (Data Constructor) | Telescope.Asdf.Core, Telescope.Asdf |
| AsdfError | Telescope.Asdf.Error, Telescope.Asdf |
| AsdfFile | |
| 1 (Type/Class) | Telescope.Asdf.Encoding.File |
| 2 (Data Constructor) | Telescope.Asdf.Encoding.File |
| Axes | |
| 1 (Type/Class) | Telescope.Data.Axes, Telescope.Fits |
| 2 (Data Constructor) | Telescope.Data.Axes |
| axesColumnMajor | Telescope.Data.Axes |
| AxesIndex | Telescope.Data.Array |
| axesIndex | Telescope.Data.Array |
| axesIndexN | Telescope.Data.Array |
| AxesMismatch | Telescope.Data.Array |
| axesRowMajor | Telescope.Data.Axes |
| Axis | Telescope.Data.Axes, Telescope.Fits |
| axisN | Telescope.Data.Axes |
| AxisName | |
| 1 (Type/Class) | Telescope.Asdf.GWCS |
| 2 (Data Constructor) | Telescope.Asdf.GWCS |
| AxisOrder | Telescope.Data.Axes |
| AxisType | |
| 1 (Type/Class) | Telescope.Asdf.GWCS |
| 2 (Data Constructor) | Telescope.Asdf.GWCS |