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Empirical throughputs

Throughputs have now been measured on-sky for all current ING common-user instruments except WHT TAURUS (Fabry-Perot mode), JKT Richardson-Brealey spectrograph and WHT LDSS imaging. WYFFOS and WHIRCAM are not fully commissioned at the time of writing; only theoretical estimates of throughput are available. Most of the measurements reported below were made in 1994.

Tue Aug 15 16:42:46 BST 1995