% 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 54 54 38 127 268 433 443 390 354 573 537 604 581 553 626 479 385 364 400 308 326 278 278 229 227 223 154 208 183 144 176 172 150 140 145 122 123 77 103 87 66 69 67 57 50 68 55 26 19 -3 -19 37 -15 -19 -17 10 41 -6 8 -31 -9 21 -34