% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 296 218 101 98 126 90 84 143 280 103 140 170 196 192 212 186 105 80 151 102 90 122 87 138 92 80 65 111 75 67 75 24 8 55 50 37 43 51 31 -16 25 42 21 13 -14 41 42 35 37 30 -29 -51 -25 -27 -33 -17 40 44 -51 -42 -14 60 33 46 52 57 25 48 41 71 22 30 -26 39 -15 60 -40 -19 -43 -17 5 -35 51 47 12 60 32 -36 14 37 -37 18 -25 81 -6 -35 16 37 41 -40 -13 23 17 15 -19 -45 -32 71 48 44 -44 21 6 55 38 -26 -49 21 27 16 -44 -39 -15 31 -22 -36 -40 -19