% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 148 91 65 75 67 52 57 51 48 75 93 143 111 169 211 198 131 200 275 230 116 172 135 122 90 71 83 81 63 61 47 60 43 54 58 30 32 40 56 29 -20 -4 23 36 21 60 39 24 -35 49 37 35 -12 16 -38 37 26 8 33 -33 33 31 -22 11 -27 -15 21 46 -6 -28 7 6 -12 -18 -24 28 -5 -12 12 -7 -27 -15 16 -10 -21 36 27 -20 -7 -27 -18 -16 29 38 48 19 -29 -29 11 -21 6 13 21 13 24 23 20 -25 -33 14 -18 48 -30 -12 -29 -34 -21 -10 27 13 30 24 -20 46 -19 -21 24 -30