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Signal To Noise Ratio

Using data referring to UVES, if the seeing is 0.8 arcsec, for U band, we get nbin=npix=6, RON= 4.4  e- and $DARK=1 ~e^{-}\slash pix\slash h$ and with data referring to the Table 2.6 and 2.7 we found:


To be matched with the value found by the ETC of 8.

Pascal Ballester