% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 64 Frequency Bands are 0.01562500 Hz wide(first frequency band is centered at 0.00830078) 87 56 45 92 171 419 337 280 346 359 379 328 296 235 247 318 332 421 296 399 303 278 255 277 235 266 216 182 185 165 165 147 115 163 135 148 95 149 119 72 90 88 84 96 65 48 12 42 15 36 47 -19 43 -41 15 20 50 -47 -20 -31 -33 -22 32 -40