% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 202 129 105 68 65 18 91 64 129 254 217 211 368 360 425 380 487 349 157 231 209 186 207 214 286 218 251 181 232 144 154 151 156 185 181 93 100 115 55 92 70 67 92 100 116 121 73 90 115 99 103 93 105 109 77 106 55 95 57 109 71 73 10 61 53 49 78 56 88 46 40 83 58 33 91 53 -16 17 28 64 38 -25 31 40 45 52 6 46 39 -14 23 -21 3 51 22 -28 -19 -4 -39 16 -32 31 -24 45 -11 -31 24 15 -17 43 28 -25 26 27 -28 -24 38 -18 -34 2 13 -32 -41 16 38 33 -11 -15