% Orbital Velocity Derived Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 36 30 49 32 44 54 60 81 157 335 353 197 154 211 316 198 293 120 204 182 142 155 97 116 56 66 83 72 60 59 34 35 35 25 31 9 23 12 13 16 25 13 23 24 -12 13 22 29 27 -10 -23 19 -12 -30 22 17 -20 4 43 18 -20 51 18 18 34 -34 -4 -27 23 -13 52 51 32 55 -19 74 27 -45 29 -15 -12 -48 22 16 -50 -19 28 -42 -28 -4 -31 -23 -21 62 39 34 48 30 -33 21 -29 -39 4 35 53 43 33 -33 -26 48 -36 63 -51 -31 48 -13 25 -21 -21 -43 -21 -64 -27 -57 18 26 -33 42