% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 192 131 46 39 44 87 67 293 109 166 137 159 231 294 223 206 168 149 159 121 102 219 190 142 129 96 64 156 114 90 126 107 90 79 74 45 58 22 40 63 -19 45 62 29 35 -23 -15 -31 2 -37 -33 -28 -36 -38 -20 -19 -43 -10 -44 -18 -35 -33 -43 -39 -39 -42 -30 -39 -26 -10 -43 -29 -32 -14 -43 -46 -38 -28 -19 -42 -44 -31 -35 -40 -29 -15 -33 -20 -30 -29 -40 -27 -31 -20 -29 -42 -39 -38 17 31 -24 23 -36 21 -19 -29 11 -21 -16 11 33 20 47 -33 -23 17 -18 -26 49 -22 30 -31 -20 -19 40 31 -31 25