% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 1385 510 323 206 207 271 176 231 233 156 247 286 310 285 192 299 427 258 280 296 309 256 197 172 177 133 121 188 92 180 121 177 194 87 147 159 78 146 83 90 50 124 92 -76 83 54 132 75 152 163 116 72 -69 144 -24 120 86 133 90 94 -91 65 36 142 -79 -18 51 -117 40 -99 -100 -47 131 98 75 20 -89 -91 -68 230 33 71 81 -74 47 71 119 102 99 -100 -80 16 106 -79 -57 -22 -62 85 163 147 -68 -67 -77 -41 -86 -95 -74 61 -80 142 -85 82 -25 -95 -38 9 106 -106 103 50 -77 -14 87 -87 -51 -74 -90 56