% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 267 132 130 98 127 80 92 96 113 299 209 77 116 195 233 206 179 173 161 159 216 249 175 138 154 108 140 139 150 93 101 135 76 99 87 61 66 38 75 36 -21 31 34 -25 -17 61 -39 28 -23 -28 -41 -11 47 46 54 35 -32 -28 -37 16 -49 15 12 12 -46 -51 -14 -12 -40 10 -35 -39 32 -37 -20 -43 -11 24 21 -35 -38 -35 39 -23 -39 -28 -39 -50 -40 36 35 18 -26 26 -48 32 -42 -25 11 -43 -30 35 51 36 -30 -28 -14 15 24 45 -43 36 11 38 -31 -14 -20 -33 -45 -34 16 38 51 -38 28 11 -26 15