% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 104 97 82 99 61 85 106 111 110 91 107 107 158 169 416 360 410 500 506 395 502 560 449 430 415 220 276 302 174 315 171 184 197 184 239 176 165 194 90 102 110 100 99 127 138 67 56 54 64 92 63 50 59 54 46 20 44 40 38 7 32 23 10 33 23 -20 26 -24 22 42 23 -12 22 23 32 -15 4 19 -7 39 17 31 -19 -7 -16 -13 16 -34 -9 15 43 8 15 22 3 4 -13 -8 -11 -25 -32 -26 19 14 -30 -26 39 22 13 -6 -14 -34 -16 27 -21 -12 -14 9 25 -16 -11 11 40 -27 -15 13 35 25