% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 154 47 55 44 56 43 46 83 74 142 93 260 225 240 353 407 385 468 374 353 236 200 207 105 127 137 114 89 104 96 106 128 141 174 116 103 112 79 141 104 99 56 111 100 76 66 76 60 61 51 54 33 56 44 27 31 27 27 31 37 27 14 28 37 10 -8 16 -2 19 14 22 18 6 -6 12 -14 20 24 -4 20 -10 21 4 8 -7 -8 28 -7 10 -8 18 -15 18 -7 -5 18 -7 12 20 20 -7 -11 0 9 22 15 12 17 -8 -15 -5 14 12 -12 -17 -17 -13 1 -8 22 -17 -14 -9 -17 -19 -12 -15 12