% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 163 113 91 40 -44 -9 6 21 31 53 89 45 27 37 88 137 78 128 137 77 103 83 92 82 55 70 57 74 117 100 33 25 12 30 70 -8 71 108 128 152 115 68 124 166 132 159 121 136 92 120 145 127 144 75 103 63 96 41 91 103 96 60 59 70 101 52 76 15 65 59 94 56 57 18 59 94 60 65 42 57 35 39 75 51 52 32 29 66 66 62 5 21 38 40 36 -13 37 36 11 22 15 -19 30 8 53 -27 36 37 -39 -16 14 57 -13 -22 -45 -46 -33 13 5 -23 -9 16 -38 27 -19 -36 -29 26