% 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) 75 63 51 65 143 297 659 610 497 410 385 238 250 234 269 265 228 317 252 224 180 194 227 152 169 120 111 89 99 95 82 70 79 59 68 57 39 50 57 48 42 43 34 29 30 29 25 29 23 25 22 14 -9 -17 -5 -19 -4 -3 -25 -18 26 -5 -24 -11