% Orbital Velocity Derived Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 15 34 45 26 25 20 23 71 97 165 199 213 178 114 189 175 361 549 600 538 420 374 278 172 210 118 183 107 209 77 130 115 121 82 79 58 43 64 67 37 39 34 41 44 28 44 42 32 10 35 41 47 60 41 43 45 40 47 37 62 76 74 81 102 96 63 94 105 124 72 59 73 66 -29 47 45 86 67 34 48 -47 56 20 24 27 -40 12 -28 13 30 57 17 -50 26 -29 -44 -44 27 -59 -57 20 38 -29 20 -20 28 20 39 27 -10 -41 -11 57 -30 -37 -61 -33 -26 55 37 88 -37 25 18 27 36 -38 23