FITSAUDIT · PROFESSIONAL BROWSER TOOL
Look inside a FITS file.
Walk FITS Header/Data Units locally; read 80-character keyword cards, END, and block padding, parse SIMPLE/XTENSION, BITPIX, NAXIS dimensions, PCOUNT/GCOUNT, and calculate each HDU data span.
Open the workbench ↓Inputs and files stay on this device
/Focus first input⌘ ↵Run primary action⌘ ⇧ SDownload local reportAlt RJump to latest resultsAlt LSwitch languageAlt TSwitch themeAlt CToggle high contrast
Local report studioPreview · Markdown · JSON · SHA-256
—Uses only the currently visible result summary, never input controls or original files; the fingerprint is also calculated locally.
Local analysis checkpointsUp to 5 · saved only when you choose
Stores only the visible result summary, time, and an optional short label; imported files and input controls are never stored. Imports must match this tool and stay under 128KB; comparison also stays on this device.
Built deeply for one narrow workflow
2880-byte HDU alignment
BITPIX/NAXIS data spans
This is a bounded FITS container check. It does not render arrays, apply BSCALE/BZERO or WCS, interpret compression conventions or table extensions, or judge observations and scientific data quality.
Read the source ↗NO ACCOUNT · LOCAL PROCESSING · EXPORTABLE