% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 81 53 26 42 -44 -46 -45 65 54 33 58 116 148 397 368 419 417 380 339 308 311 186 97 169 147 149 73 107 58 70 105 55 10 59 -10 -29 18 -32 -27 22 -40 -18 74 42 64 68 37 99 60 101 38 -20 139 154 155 118 147 161 75 87 75 64 100 134 86 101 83 85 62 83 107 -23 85 77 99 17 68 51 56 34 11 28 30 -17 53 17 -9 60 27 19 32 -24 -15 -17 -36 41 48 16 -13 -19 47 19 -14 -5 -49 19 14 10 -13 -33 -17 -12 40 -26 18 58 -46 24 15 22 30 -33 -13 -36 22 -40 -29 28