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h1. CTA response format

This table summarizes the discussion on the response format during the June 2013 code sprint.

| *Response component* | *Axes* | *Binning* |
| Effective area | x, y, log10 energy | 20 x 20 x 50 |
| PSF | x, y, log10 energy, offset or parametrization | 20 x 20 x 50 x (50 or a couple) |
| Energy dispersion | x, y, log10 E_true, log10 E_measured | 20 x 20 x 50 x 50 |

x, y any coordinates? Could be easier in Right Ascension and Declination. Could be TAN projection.