% 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) 68 54 54 108 456 256 384 436 352 206 152 156 197 239 283 399 478 405 321 265 263 258 155 174 195 180 180 123 130 135 124 148 148 136 92 124 96 98 68 90 64 87 89 63 44 38 71 -33 73 31 -30 -21 43 -39 -15 40 -52 -38 35 32 -21 -23 -52 -29