% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 89 64 80 46 43 50 48 95 134 96 51 101 78 133 132 308 507 715 604 517 748 345 417 348 481 528 436 318 360 317 375 216 256 269 202 217 154 178 167 124 125 96 111 97 106 63 74 87 82 53 90 55 47 52 27 32 27 41 44 12 24 -7 3 22 28 31 -29 -30 -30 -39 -32 -40 -35 -18 -28 -40 -36 -28 -26 -15 -35 -33 -38 -30 -23 -26 -30 -41 -28 20 -33 -5 -39 -37 17 -21 -40 -27 -17 -43 -13 -4 20 -14 -40 -23 -37 -30 14 15 -20 -10 -14 10 -5 33 -16 -14 6 12 28 50 33 -13 40 29 27 45