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open-gamma-ray-astro / gamma-astro-data-formats

Data formats for gamma-ray astronomy
https://gamma-astro-data-formats.readthedocs.io
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Improve description of PSF axes #175

Open GernotMaier opened 3 years ago

GernotMaier commented 3 years ago

Proposal to clarify the meaning of the axes in the PSF histograms (see also issue #174)

maxnoe commented 3 years ago

It's also not mentioned that these columns are lower and upper bin edges respectively. Maybe we should write it like this?


Columns:

* ``ENERG_LO`` -- ndim: 1, unit: TeV
    Lower bin edges of the true energy axis
* ``ENERG_HI`` -- ndim: 1, unit: TeV
    Upper bin edges of the true energy axis 
* ``THETA_LO`` -- ndim: 1, unit: deg
    Lower bin edges of the axis in the angular distance to center of the array pointing direction (see :ref:`coords-fov`)
*  ``THETA_HI`` -- ndim: 1, unit: deg
    Upper bin edges of the axis in the angular distance to center of the array pointing direction (see :ref:`coords-fov`)
* ``RAD_LO``  -- ndim: 1, unit: deg
     Lower bin edges of the axis in angular distance between simulated and reconstructed direction
* ``RAD_HI`` -- ndim: 1, unit: deg
    Upper bin edges of the axis in angular distance between simulated and reconstructed direction
* ``RPSF`` -- ndim: 3, unit: sr^-1
   Matrix of point spread function values in the binning defined in the above columns :math:`dP/d\Omega`, see :ref:`psf-pdf`.