- Function names closely mirror the C interface (e.g.,
fits_open_file()
). - Functions operate on
FITSFile
, a thin wrapper forfitsfile
C struct (FITSFile
has concept of "current HDU", as in CFITSIO). - Note that the wrapper functions do check the return status from CFITSIO and throw an error with the appropriate message.
For more information and usage examples, please visit the documentation.