! These catalogues are constructed from mock shear maps from the SLICS N-body simulations 
! (Harnois-Deraps & van Waerbeke, 2015 and Harnois-Deraps et al, 2018).
!
! Galaxies are pasted at random locations on the lightcone, following the n_eff of the KiDS450 data: n_eff = 8.53.
! 
! The n(z) and photometric/spectroscopic redshift PDF is constructed from the spec-z matched sample, 
! i.e. the DIR method in the cosmic shear paper (Hildebrandt et al. 2016), in which no Z_B cuts were applied.
! When doing tomographic cuts, the mocks will recover the correct same n(z) as in the KiDS450 cosmic shear paper, 
! but the n_eff in each tomographic bin will differ, unfortunately.
!
! The shear value is interpolated from pixels values in redshift direction, but not in pixel direction.
! Each catalogue has an area of A = 100 sq. deg.
! 
! Output is organized as :
! 
! x_arcmin, y_arcmin, z_spectroscopic, z_photometric, shear1, shear2, eps_obs1, eps_obs2