% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 209 113 77 54 -13 19 -44 58 44 56 84 51 50 58 78 129 156 206 215 213 428 506 438 222 156 263 250 144 208 125 147 109 148 73 89 75 51 101 76 96 116 90 63 124 100 78 139 87 134 109 115 115 82 86 127 40 15 43 85 31 45 73 79 60 38 70 76 66 69 71 86 42 78 74 76 58 57 98 50 59 85 69 49 29 68 37 -29 47 61 56 -26 22 37 51 42 20 67 7 -32 18 -3 -49 48 -28 -23 -33 -12 36 49 34 17 -21 52 -16 -36 -14 25 58 -20 -39 -11 -26 -60 16 -19 -41 -43 -31