% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 176 140 82 107 88 70 83 57 98 74 88 101 149 120 131 130 84 120 111 104 111 130 100 114 213 161 186 136 129 131 144 105 112 107 83 105 115 72 75 82 109 67 75 27 68 114 72 67 69 62 85 64 69 55 69 76 42 59 33 58 64 43 37 43 52 64 72 57 62 54 64 42 96 50 73 45 18 77 -5 67 56 -29 15 28 23 46 -28 -19 46 -35 28 43 16 36 40 -10 21 12 -24 38 -12 39 37 30 24 -30 38 -43 -30 -20 44 45 11 -36 26 -35 -26 44 38 44 -19 -46 -42 -37 -30 28 -42 -25