% Orbital Velocity Derived Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 18 26 50 35 18 39 55 63 73 79 66 191 365 235 258 158 126 112 47 78 108 97 68 92 95 61 56 67 55 65 42 48 51 35 38 24 73 36 67 54 61 71 64 39 92 61 65 69 69 72 60 54 121 70 55 46 87 79 58 45 46 83 -13 33 -34 37 -30 -36 66 -38 5 -26 -72 -43 47 -50 51 96 78 -39 58 84 32 -46 57 47 27 45 -67 -70 69 61 7 29 -19 28 71 -9 36 -66 33 -27 70 53 48 -45 -44 -67 -46 89 100 -82 -64 -8 44 -71 -30 -43 -42 -70 48 56 77 -39 31 10 -56 -69