% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 279 169 156 139 92 141 99 78 100 118 122 122 127 104 178 220 277 194 132 186 110 118 100 90 77 70 99 116 107 88 95 72 69 101 59 78 71 75 79 96 67 92 48 38 52 62 45 52 56 55 69 84 61 71 92 85 97 78 82 93 66 81 66 31 55 44 39 46 44 40 51 37 31 33 15 21 21 28 25 28 13 -18 5 23 -7 -13 -4 16 -25 17 17 13 14 26 -7 -13 -24 13 -18 -14 -23 14 14 -5 15 -9 8 16 16 6 6 -9 -9 -18 28 23 -13 -18 -20 -15 -11 -13 11 22 -11 27 -11 -14