% 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) 121 75 50 75 185 363 1252 942 1133 962 761 680 408 336 267 355 446 464 510 468 299 380 305 288 242 279 224 175 168 148 154 132 137 147 131 105 105 83 86 55 71 79 78 52 49 45 58 57 32 30 31 48 -14 18 -11 -33 8 -38 -24 -27 -27 9 -25 -17