% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 125 151 107 70 89 79 75 72 86 137 163 174 569 665 821 657 377 821 387 472 491 208 313 257 242 374 259 224 256 247 188 125 214 151 178 210 160 172 87 110 111 127 109 93 89 108 84 83 58 81 61 71 74 30 48 77 53 38 83 55 24 33 41 55 27 36 32 60 36 31 37 -13 -15 20 -21 20 36 -13 -14 -35 -32 -19 -18 -24 11 -21 -19 -12 18 11 33 18 -12 -23 -27 -33 35 22 -8 -21 -37 -15 8 20 -9 2 38 36 -26 -23 -24 24 -26 42 42 -31 -25 16 16 -6 -31 -14 14 -23 -38 26 -29 11