PSF_GTPSF

The FITS file has the following BinTable HDUs / columns:

• PSF HDU

  • Energy – 1D (MeV)
  • Exposure – 1D (cm^2 s)
  • Psf – 2D (sr^-1), shape = (len(Energy) x len(Theta)) Point spread function value \(dP/d\Omega\), see Probability distributions.

• THETA HDU

  • Theta – 1D (deg)

Header keywords:

As explained in HDU classes, the following header keyword should be used to declare the type of HDU:

• HDUDOC = ‘https://github.com/open-gamma-ray-astro/gamma-astro-data-formats’
• HDUVERS = ‘0.3’
• HDUCLASS = ‘GADF’
• HDUCLAS1 = ‘RESPONSE’
• HDUCLAS2 = ‘PSF’
• HDUCLAS3 = ‘FULL-ENCLOSURE’
• HDUCLAS4 = ‘GTPSF’

Example data file: psf-fermi.fits