% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 190 147 95 67 63 79 85 124 266 555 566 359 274 270 192 229 263 188 263 259 343 198 200 159 143 108 149 215 83 228 182 117 59 116 108 114 92 121 97 114 86 89 79 70 89 122 77 113 139 76 99 63 51 59 25 45 58 35 17 47 56 53 35 39 33 23 35 -17 -19 19 14 -21 30 -19 -22 12 6 28 -30 -26 -32 6 -24 -21 6 24 14 -33 10 -26 -27 10 -33 -24 13 -24 -29 -22 -15 9 -26 -32 -28 1 -8 39 -22 -7 36 -26 27 31 -8 17 -10 -25 -20 -30 32 28 -16 -10 19 23 -12 13 18 26