% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 128 61 34 43 36 47 55 169 146 120 286 272 464 590 651 275 251 152 144 119 138 99 59 62 68 74 74 34 76 48 14 -18 23 -13 -30 -30 -18 -35 -12 -33 -34 -37 -35 -33 -28 -32 -37 -36 -35 -39 -30 -29 -21 -30 -29 -31 -24 -25 -24 -19 -38 -18 -31 -25 -33 -24 -35 -26 2 -17 -28 -11 -25 -36 -23 -31 -36 -26 -35 17 -11 -30 8 -30 -24 -31 -24 26 -27 -24 -28 -31 -31 -21 -27 -21 23 -38 -15 -37 -31 14 -25 -9 -14 -18 -21 -13 20 -25 -22 -7 -18 -22 -22 26 -6 -16 25 44 -1 29 33 17 13 29 13 41