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.

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Processed locally
Local report studioPreview · Markdown · JSON · SHA-256
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.

    01

    80-character cards and END bounds

    02

    2880-byte HDU alignment

    03

    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.

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    NO ACCOUNT · LOCAL PROCESSING · EXPORTABLE

    Professional tools can still be quiet and transparent.

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