On Monday 19 July 2004 11:10, mohit agarwal wrote: > I hope you (or someone known to you) will be having a C or C++ > function(s) for this conversion. The MIDAS system contains such functions which are used in its FITS reader/writter. You can find the actual routine used under the MIDAS distribution in the file prim/dio/libsrc/cvb.c. Preben Grosbol