% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 270 90 102 87 110 96 48 71 82 67 85 108 165 262 196 139 196 493 370 566 324 358 339 328 187 173 217 241 192 247 172 182 225 158 128 128 178 113 136 108 134 97 100 62 58 68 83 69 42 70 64 95 82 65 44 61 42 67 42 -21 -5 62 31 -39 -20 -43 -17 15 -33 -29 -14 -20 21 35 -33 -28 -27 -35 30 -35 -14 11 5 -18 -28 -5 41 19 -36 -38 23 -37 28 -14 18 -25 27 -22 33 66 75 -17 21 26 -22 -20 -22 -15 32 -28 -38 -30 -22 -13 37 -34 -39 -24 -18 -21 27 22 -22 -24 17 36 17 -34