% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 188 60 98 73 62 95 54 77 114 142 122 234 245 275 269 271 329 207 121 155 121 139 83 61 70 142 79 55 101 82 69 68 80 73 64 57 85 34 38 64 35 59 55 43 20 18 34 49 4 49 52 49 23 85 71 38 48 65 71 63 34 45 30 49 40 41 31 45 31 48 24 55 36 15 55 54 39 50 51 51 21 13 36 16 23 40 42 18 -21 39 39 34 12 -27 -24 -23 -22 16 7 28 -25 -17 23 -27 -14 29 30 21 30 41 30 -20 23 -26 20 -34 22 -26 -14 -16 13 -30 22 -20 -8 -20 -19 -19