% 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) 110 85 42 23 137 500 635 637 494 441 438 508 879 841 700 509 519 531 471 396 394 303 351 276 270 310 263 234 206 207 203 198 183 172 155 157 127 120 119 95 98 87 71 73 57 48 55 43 34 21 26 56 40 -25 -19 30 -25 -41 24 -4 -44 -42 -29 -26