% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 74 52 63 27 54 55 65 50 175 318 295 197 161 189 110 158 203 230 167 155 214 145 219 162 172 181 98 176 134 120 112 156 40 55 71 103 68 99 87 47 47 19 27 -25 37 46 43 -19 -25 18 60 11 -15 20 30 98 26 49 88 28 79 44 55 23 56 50 24 39 -18 66 -9 64 48 -15 58 22 1 43 44 -23 15 -35 15 17 -5 -24 -30 -29 23 -30 12 38 29 -16 18 -41 35 -36 -38 30 17 -29 -23 -25 34 -28 26 -14 -44 -26 40 -17 17 -28 10 -18 23 47 -26 31 -17 26 26 36 -7 31 -29 -20