% 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) 172 102 49 51 97 124 192 309 300 333 424 503 776 578 489 545 413 409 468 354 350 287 292 321 296 254 231 236 207 185 179 169 161 176 148 171 93 124 118 82 93 84 75 91 46 54 38 51 71 50 11 -6 47 54 -37 -16 -49 -49 -29 -53 -19 22 -46 -28