% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 213 79 -9 76 56 54 84 24 63 104 217 213 202 241 277 342 417 188 172 145 117 43 128 74 93 51 57 49 23 47 -20 42 -15 34 -27 32 6 -38 45 -38 28 30 -17 -18 90 65 53 87 70 40 38 42 105 65 102 80 93 75 64 80 90 113 94 82 47 50 43 95 86 66 82 72 79 76 51 43 40 34 46 50 50 37 61 -13 45 -13 53 54 12 27 -26 29 50 9 28 -4 -22 -23 9 4 28 -37 16 30 31 -27 -28 -20 28 41 17 -26 33 36 -31 -17 13 -25 -39 15 27 -20 -37 12 -26 38 20 -14