% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 152 102 84 82 83 76 64 67 97 173 127 252 432 189 229 313 289 222 145 198 152 145 188 136 178 83 78 147 165 156 93 90 61 64 100 76 127 61 92 71 74 52 47 41 63 51 45 22 1 41 46 46 66 45 47 51 31 33 22 31 42 38 38 -18 1 36 37 -11 40 57 14 25 27 -23 17 22 35 38 34 -25 31 21 -15 17 52 16 -33 -20 -18 7 -16 27 33 -20 -34 26 -26 27 -11 15 -22 27 23 39 -22 -16 51 34 13 -21 -29 -6 -13 -25 -17 -19 -31 15 1 26 29 -33 -23 30 7 -23 19 -26