% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 364 204 145 118 89 101 76 175 167 105 186 225 201 259 139 213 178 144 158 135 154 115 60 134 84 52 45 65 85 91 73 84 103 133 49 44 85 68 29 47 76 71 63 38 23 47 40 40 -41 -20 42 65 95 82 53 45 74 73 72 -11 39 41 73 126 82 68 102 70 61 67 67 81 129 50 28 47 33 63 37 64 37 -20 16 -18 44 -37 -43 -51 -41 -27 13 -20 40 -32 53 52 -29 41 -42 -40 -25 34 13 -10 35 -36 61 -15 21 26 -26 49 -41 -38 24 -27 25 -18 23 25 -30 -57 26 45 30 -22 37 13