% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 140 217 125 97 53 48 86 110 100 146 132 173 146 240 147 137 114 111 129 82 136 80 158 103 83 87 57 70 60 55 70 41 57 23 50 67 90 39 29 -5 30 -23 26 61 67 89 123 88 90 64 92 82 78 54 107 47 77 57 41 138 90 64 64 76 54 76 96 79 70 79 63 35 74 84 77 87 64 71 67 105 55 46 30 43 61 77 52 47 47 54 16 8 -10 -17 46 17 -33 23 22 24 36 26 0 -13 -26 21 56 -17 27 -19 36 -17 6 -33 24 37 -25 38 40 27 -40 -40 -27 -36 -42 -30 -30 -35