% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 129 116 120 77 87 61 93 89 270 170 293 213 253 255 307 125 219 129 146 82 137 121 72 77 83 63 53 82 32 33 75 -7 -35 -6 -43 -34 40 27 47 43 22 18 -46 -41 -51 -27 -32 -45 -46 -45 -34 -43 -26 -36 -47 -27 21 -40 -41 35 50 36 -9 61 84 109 60 87 100 99 65 90 113 75 68 91 36 90 75 49 67 77 61 66 76 74 50 62 43 -14 38 35 34 45 26 37 47 -21 -14 -24 26 -27 37 -16 -13 -23 -16 10 14 13 24 9 -19 55 25 -28 -38 -15 40 35 -36 28 -21 -38 14 -14 -14 -25