% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide(first frequency band is centered at 0.00439453) 138 76 94 57 63 61 20 52 66 162 464 628 389 596 497 450 505 491 628 810 833 791 889 916 832 766 511 521 561 475 472 584 468 591 342 344 457 507 466 393 338 343 390 320 316 295 281 272 275 294 329 283 271 176 175 187 201 226 208 212 163 157 171 125 166 145 135 130 115 133 122 117 128 90 125 139 127 72 78 74 106 95 87 63 82 45 63 57 75 62 54 48 59 28 39 34 30 50 58 35 28 30 34 10 22 -26 -35 15 36 -20 -34 32 -31 38 -11 38 -23 -38 -43 -21 -31 -20 -34 -37 -39 -37 -16 -31