% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 125 105 77 79 84 52 68 102 95 218 204 254 350 349 261 291 219 229 143 150 99 98 76 123 130 96 116 103 120 108 100 138 90 78 70 63 71 66 95 59 60 63 43 51 41 35 29 35 38 40 23 21 23 45 9 -10 28 28 49 32 12 16 15 9 -6 9 34 10 8 14 10 -14 34 10 -24 -24 3 6 26 36 -8 11 -16 -25 -12 14 -13 -20 -11 -22 -17 -23 -23 -26 -10 -18 -21 27 13 -23 21 -12 30 -12 6 -21 -26 5 -21 40 -23 -21 2 -16 25 20 17 25 -23 0 26 -7 -12 -12 -10 -7 22 -19