# 53 49 4D 50 4C 45 20 20 3D 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54 — File format magic numbers

For 53 49 4D 50 4C 45 20 20 3D 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54, offset is 0; extension is fits; format is Flexible Image Transport System ( <https://en.wikipedia.org/wiki/FITS> FITS ) [ 41 ], recorded from its source on 2026-08-03.

- **Hex signature:** 53 49 4D 50 4C 45 20 20 3D 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 54 _(unconfirmed — we could not tie this to the quote below)_
- **Offset:** 0 _(unconfirmed — we could not tie this to the quote below)_
- **Extension:** fits
- **Format:** Flexible Image Transport System ( <https://en.wikipedia.org/wiki/FITS> FITS ) [ 41 ]

## What the source says

> fits | Flexible Image Transport System ( <https://en.wikipedia.org/wiki/FITS> FITS ) [ 41 ]

## Source

- https://en.wikipedia.org/wiki/List_of_file_signatures

Last verified: 2026-08-03. Review by: 2027-08-03.
Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).