% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 114 103 83 64 61 65 58 110 129 93 137 110 182 191 299 385 302 228 204 249 187 241 169 140 114 123 169 56 90 102 168 157 125 108 140 68 98 119 124 121 118 135 74 158 187 134 103 97 108 126 60 105 83 76 98 70 89 99 86 95 70 44 60 62 31 25 40 49 -21 33 38 30 67 37 -16 -26 36 34 -20 -19 43 -18 14 -37 37 -36 -20 -21 -36 -6 -16 -27 -14 -36 -31 -31 17 -30 -16 -35 -25 23 -28 -24 -14 41 10 6 -34 23 40 -32 13 15 -18 -33 48 -7 -16 28 34 38 30 -32 37 -12 -19 -21