Starlink Data Format
Starlink Data Format (SDF) files are a container format, primarily for astronomical data, developed by the UK Starlink Project (1980--2005).
The main 'user' of .sdf files was the same project's higher-level NDF format.
There is no standard SDF MIME type. Almost all SDF files used a
.sdf file extension.
The Starlink software suite reads, writes and manipulates SDF files.
No collections known.