[mg85145] Re: FITS Export w/ Elements in V6?

[Frank Iannarilli <frankeye at cox.net>]

One possibly related problem is that the current V6.0.1.0 (Win) does
not successfully distinguish between a 32-bit integer and a 32-bit
floating-point array type FITS file. It thinks both are Real32 (for
the DataType element).  My trouble was in trying to Import[] then
Export[] the element set for a 32-bit integer FITS file.  Upon
Import[], the RawData element contains the correct data bytes (for
either type), but the Data element contains an array evidently coerced
by Mathematica into floating-point.  Presumably some of these
coercions are not valid IEEE float values, so that upon attempted
Export[], Mathematica complains.  I will submit a bug report to
Wolfram.

BTW, one can test the validity and type of FITS file with the
following tools, one on-line and the other for desktop:
<http://fits.gsfc.nasa.gov/fits_verify.html>
<http://heasarc.gsfc.nasa.gov/docs/software/ftools/fv/>