% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 79 65 69 86 57 64 77 177 114 135 156 82 168 106 128 175 126 131 124 142 152 126 295 279 300 391 317 232 243 159 150 153 138 97 150 39 64 87 42 34 55 54 61 38 36 -31 41 -17 38 -21 14 12 -13 29 16 -23 -10 29 19 -30 -32 -38 -36 -38 -28 -17 -36 -12 -23 -36 -24 -26 33 -30 -38 10 34 -44 -44 -31 -27 -28 -38 -31 -32 -40 9 -36 -20 -19 -26 -15 19 -18 -42 -26 -14 -20 -25 -16 -33 -34 -26 16 -15 41 27 -19 -23 3 -27 28 26 47 -14 9 -29 28 34 57 -19 -26 -12 29 21 -33 22 37