% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 110 61 73 49 35 38 -11 31 46 61 98 101 102 241 227 453 286 277 356 293 288 200 162 101 125 129 109 61 71 74 44 -12 67 -39 -24 -24 13 -26 -37 17 -12 -37 -25 -29 10 -33 -18 -26 -43 -45 -41 -43 -48 -48 -43 19 -38 5 -33 -40 34 -34 40 41 27 11 20 41 66 79 36 67 18 57 63 43 50 79 71 -22 51 17 37 49 -10 35 -8 37 16 34 -9 62 40 -22 -16 -34 34 -8 26 39 -33 -29 27 -21 -18 22 26 18 -39 23 16 -18 -26 37 22 10 -35 16 17 -28 -17 -31 19 -12 -25 19 34 -39