% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 54 49 -23 38 31 34 -4 52 53 80 122 194 173 111 327 202 321 295 197 170 272 206 231 157 216 149 108 101 98 123 153 125 174 122 145 147 140 55 92 102 53 80 42 88 48 56 29 -16 49 10 -9 -22 12 1 12 -2 -16 15 26 29 31 26 11 35 39 -27 -18 36 29 -13 25 -26 35 18 39 -10 24 12 -37 22 34 32 46 11 17 -13 36 -28 -33 11 -33 27 -21 15 25 -37 41 -21 6 -8 -16 -27 -11 25 25 -23 33 -32 -22 -34 36 -6 23 -36 -17 26 20 11 34 22 23 10 23 -18 -25 -13 -31 19