% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 80 79 51 52 -12 36 107 139 92 75 67 95 214 201 229 411 389 455 348 483 222 269 181 204 166 121 131 80 40 82 90 45 60 57 57 32 27 64 19 39 26 70 34 56 50 58 34 51 -13 33 51 26 33 63 16 45 7 64 26 25 50 32 44 -27 44 -24 10 -25 31 -21 25 19 36 29 46 -17 -20 -3 16 -13 -28 34 22 -29 -28 -3 -15 16 -7 -2 -14 30 7 -11 -5 4 -11 21 -25 -29 -22 24 7 -23 -12 -24 -12 -31 -34 19 -10 13 -16 -17 37 25 44 33 17 23 20 16 -26 -27 8 5 24 -18