% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 287 116 107 81 85 109 89 78 127 330 282 163 113 332 231 166 202 133 147 143 136 181 302 248 350 348 486 257 267 213 177 320 250 270 208 179 148 156 178 127 158 138 162 109 138 88 144 71 110 96 84 109 88 93 90 60 62 68 57 74 66 67 68 67 29 71 56 56 59 62 38 47 42 43 63 3 38 58 39 44 46 37 -17 12 26 19 22 23 22 20 27 27 34 -29 -17 -2 24 7 15 -20 22 -22 8 -9 -16 25 -12 5 -1 34 -25 9 -27 -17 -29 -11 25 -21 -13 24 -33 -30 -17 31 -16 37 -20 17