% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 94 127 71 108 83 55 64 73 106 87 212 209 298 416 494 330 321 143 150 192 133 152 125 107 55 111 92 111 136 70 87 105 78 122 159 101 140 212 121 89 206 131 181 140 85 138 74 64 94 113 86 116 54 97 51 108 73 90 77 45 51 66 49 35 66 50 49 66 56 -15 46 58 42 53 25 45 27 29 63 44 22 65 47 59 -5 -10 47 69 23 22 -36 52 25 29 33 21 -25 -39 14 30 15 12 -21 39 -17 17 27 -25 -17 25 34 -33 -34 -28 -17 26 20 23 -40 32 -32 -20 30 26 -14 21 17 -26