% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 102 74 85 91 71 59 60 54 95 151 183 269 301 279 214 150 177 124 99 107 76 94 58 51 67 58 59 46 55 35 43 49 54 29 37 43 40 34 19 26 27 22 28 2 12 7 19 -15 12 12 -13 17 -15 7 -5 -16 -19 -8 20 -17 -20 -18 -7 -12 -9 -9 -20 -23 -20 -22 -13 -11 -11 -22 -25 -21 -13 -15 -17 -14 -19 5 -19 7 -17 -19 -21 15 -20 -15 -19 -19 -20 20 10 12 -16 21 -6 -19 24 -17 5 -9 19 -14 -3 14 -16 -16 8 8 17 -6 -5 -21 6 -11 -10 8 3 -7 26 17 12 -16 -18 -8