% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 667 312 139 183 276 174 240 149 177 181 132 247 211 411 675 974 784 684 620 406 446 182 331 193 109 122 304 256 255 333 301 330 187 183 182 121 181 167 169 110 87 96 59 89 200 -100 -26 83 -113 116 108 63 159 135 57 39 -62 111 159 -91 164 52 -91 70 95 -117 -66 122 108 68 116 44 -37 115 121 -34 34 75 -41 -103 -94 28 142 108 -89 95 -122 -63 -109 -54 80 -84 -127 -33 79 36 90 111 -79 -69 51 78 -76 -79 -85 -92 99 -41 -121 103 60 -91 40 -95 115 113 160 -101 -146 -123 -32 -89 -82 111 70 51 77 78