% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 138 88 85 77 111 57 97 209 419 523 283 298 233 259 144 163 154 195 183 152 138 215 195 162 129 181 130 118 106 101 47 108 43 76 58 54 29 -18 -36 -40 -23 -43 -49 -47 -41 -43 -37 -44 -39 -45 -33 -22 -39 -45 -38 -45 -44 -39 -18 -28 -44 -45 -47 -31 5 -36 -40 -28 -38 20 -45 -19 -26 -18 23 -40 29 32 30 32 45 -31 -26 51 -19 -46 7 -15 -13 -39 -29 13 -36 -35 -17 -33 11 -14 -22 -35 12 -32 -18 24 -22 14 -15 -30 -12 11 21 -43 6 31 18 57 39 -14 16 5 36 -8 8 -29 11 -30 -15 -20