UPDATEWCS.UTILS functions

stwcs.updatewcs.utils.build_sipname(fobj, fname=None, sipname=None)

Build a SIPNAME from IDCTAB

Parameters:

  • fobj (astropy.io.fits.HDUList) – file object

  • fname (string) – science file name (to be used if ROOTNAME is not present

  • sipname (string) – user supplied SIPNAME keyword

Return type:

sipname, idctab

stwcs.updatewcs.utils.build_npolname(fobj, npolfile=None)

Build a NPOLNAME from NPOLFILE

Parameters:
Return type:

npolname, npolfile

stwcs.updatewcs.utils.build_d2imname(fobj, d2imfile=None)

Build a D2IMNAME from D2IMFILE

Parameters:
Return type:

d2imname, d2imfile

stwcs.updatewcs.utils.build_distname(sipname, npolname, d2imname)

Core function to build DISTNAME keyword value without the HSTWCS input.