% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 83 110 91 53 62 55 57 167 157 183 285 634 541 351 260 299 244 261 282 228 318 274 235 280 228 217 193 255 214 213 164 138 137 198 148 91 102 160 40 81 115 95 98 31 42 50 61 37 106 -17 66 34 68 74 88 71 73 101 81 80 124 143 55 66 84 46 80 83 65 7 -30 47 91 37 11 -17 -33 38 52 -14 91 -34 -35 28 48 71 -11 -41 35 -34 50 -33 16 -8 -37 -37 -13 55 33 -28 31 -48 54 26 -13 -42 -43 -32 -12 37 16 -40 60 36 -45 -24 -43 -33 25 -32 -21 45 -38 29 40 34 30 -21