% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 1034 459 500 351 263 327 366 244 333 316 263 292 360 373 423 340 274 402 347 302 231 206 237 280 267 225 201 358 149 256 220 241 129 194 181 170 128 88 -75 139 41 35 173 -34 165 -110 -100 72 124 -8 213 -59 35 -98 117 -28 100 -48 -76 154 -83 87 -21 132 110 170 151 -40 95 112 -147 186 94 -32 -104 -18 129 84 -125 -68 164 259 123 -63 108 -135 -94 -132 46 -64 -86 -66 148 165 -26 -90 133 -36 -121 96 50 -84 118 -47 47 -86 88 101 131 152 155 -144 76 -82 183 -121 75 -114 -78 -108 -113 97 -123 -125 -45 82 131 -59