% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 81 22 116 51 62 28 60 69 94 141 182 333 302 268 334 353 233 193 290 231 172 233 218 119 140 141 147 107 99 108 127 131 85 90 78 102 93 94 79 81 58 52 45 75 52 80 60 12 -19 9 43 -6 49 39 34 -20 54 29 70 76 23 60 46 48 75 47 57 17 53 32 47 47 55 86 56 44 52 58 48 -13 35 40 56 49 -29 41 55 -39 -33 45 19 16 19 29 15 31 5 -39 23 -16 -29 25 21 55 -8 -33 25 23 39 -14 -40 5 45 32 -31 -8 -6 -37 -17 16 27 26 -36 -19 -12 17 -40 -28