% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide(first frequency band is centered at 0.00439453) 75 56 52 88 37 66 41 98 157 214 338 471 430 573 734 385 500 888 765 668 568 654 504 577 449 483 385 346 447 344 398 337 381 316 213 272 262 278 236 324 286 305 305 197 277 151 284 238 250 202 226 210 186 161 176 166 127 195 243 158 158 133 157 162 127 148 121 117 131 159 78 100 152 82 112 69 82 96 116 105 90 89 40 119 68 108 60 58 34 85 90 72 62 50 79 60 -5 -12 40 47 50 17 -43 -48 37 37 56 47 -41 21 39 -24 -28 -11 -3 -6 31 -37 -19 -27 -36 -32 -50 -51 33 -21 24 16