# Signal-to-noise ratio for SNAP observations of # stars of mag V = 20.0 exptime 100.0 seconds # # exptime filter A0V G0V M0V #------------------------------------------------------- 100.0 0 125.000 100.000 62.500 100.0 1 142.857 125.000 111.111 100.0 2 142.857 142.857 166.667 100.0 3 142.857 166.667 250.000 100.0 4 142.857 200.000 333.333 100.0 5 125.000 166.667 333.333 100.0 6 83.333 142.857 333.333 100.0 7 71.429 125.000 333.333 100.0 8 58.824 125.000 333.333