% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 126 78 123 66 102 68 46 52 74 104 93 112 138 175 315 450 507 402 403 367 474 377 316 297 346 212 269 141 217 208 185 216 272 156 242 274 157 232 181 172 133 245 354 179 107 173 242 140 104 136 160 94 180 107 109 90 103 67 88 140 87 66 76 84 70 96 96 99 64 56 62 46 20 47 81 59 67 44 48 33 27 31 31 28 -41 44 -20 -20 45 23 -37 -6 -16 -23 48 -22 -19 19 -40 -22 -29 24 -11 -34 -12 -37 -11 -33 -17 48 37 29 -24 -3 47 -25 31 -48 -8 -18 41 48 61 -23 -36 -27 15 25