| T | Telescope.Fits.Header.Value, Telescope.Fits.Header, Telescope.Fits |
| TConcat | Telescope.Asdf.GWCS |
| Theta | Telescope.Asdf.GWCS |
| ToAsdf | Telescope.Asdf.Class, Telescope.Asdf |
| toAsdfDoc | Telescope.Asdf.Core |
| ToAxes | Telescope.Asdf.GWCS |
| toAxes | Telescope.Asdf.GWCS |
| toColumnMajor | Telescope.Data.Axes |
| ToHeader | Telescope.Fits.Header.Class, Telescope.Fits.Header, Telescope.Fits |
| toHeader | Telescope.Fits.Header.Class, Telescope.Fits.Header, Telescope.Fits |
| ToKeyword | Telescope.Fits.Header.Class, Telescope.Fits.Header, Telescope.Fits |
| toKeywordRecord | Telescope.Fits.Header.Class, Telescope.Fits.Header, Telescope.Fits |
| toKeywordValue | Telescope.Fits.Header.Class, Telescope.Fits.Header, Telescope.Fits |
| ToNDArray | Telescope.Asdf.NDArray, Telescope.Asdf |
| toNDArray | Telescope.Asdf.NDArray, Telescope.Asdf |
| toNode | Telescope.Asdf.Class, Telescope.Asdf |
| toRowMajor | Telescope.Data.Axes |
| totalItems | Telescope.Data.Axes |
| toValue | Telescope.Asdf.Class, Telescope.Asdf |
| toWCSAxisKey | Telescope.Data.WCS |
| toWord | Telescope.Fits.Encoding.MegaHeader |
| Transform | |
| 1 (Type/Class) | Telescope.Asdf.GWCS |
| 2 (Data Constructor) | Telescope.Asdf.GWCS |
| transform | Telescope.Asdf.GWCS |
| Transformation | |
| 1 (Type/Class) | Telescope.Asdf.GWCS |
| 2 (Data Constructor) | Telescope.Asdf.GWCS |
| transposeMajor | Telescope.Data.DataCube |
| transposeMinor3 | Telescope.Data.DataCube |
| transposeMinor4 | Telescope.Data.DataCube |
| Tree | |
| 1 (Type/Class) | Telescope.Asdf.Node |
| 2 (Data Constructor) | Telescope.Asdf.Node |