% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 176 143 99 107 139 57 101 114 135 223 254 370 266 285 263 304 180 147 151 125 164 135 106 141 118 116 126 90 28 111 78 58 50 75 60 72 43 84 89 51 79 34 51 51 22 -17 12 10 18 45 22 13 -26 24 16 13 10 -27 -16 -11 -23 -6 29 -20 14 -30 -21 -22 -25 -10 -11 11 -11 -26 14 -17 -19 -28 26 -23 -15 21 11 -24 -20 -31 -10 -10 -27 -18 18 29 -17 -26 -21 -24 -25 -25 -32 42 -23 -16 -15 -24 19 -2 -16 -25 22 18 31 -27 18 -7 -19 15 34 16 24 -28 -10 -11 -20 6 16 20 15 11