- ... FITS1
- FITS,
the ``Flexible Image Transport System'' is the de facto standard
for the interchange of astronomical data.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ...
value.2
- It may also be known as the ``invalid'', ``flagged''
or even ``magic'' value, but the meaning is the same.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ...
package.3
- The Starlink application packages CCDPACK
(SUN/139) and POLPACK (SUN/223) make
extensive use of these facilities.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
- ... structures.4
-
Warning: you should not write hierarchical FITS header items as this
violates the FITS standard (although data from outside sources may
sometimes contain them).
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.