% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 78 60 50 109 101 72 58 116 223 203 210 155 243 289 220 224 150 185 172 119 171 109 86 189 114 87 146 87 26 61 70 50 78 77 42 77 51 59 31 19 -43 65 37 25 38 75 39 64 41 111 55 94 42 55 75 86 80 60 77 30 35 80 47 54 44 60 57 58 64 15 6 52 33 32 38 31 45 45 42 57 21 31 51 63 -11 6 16 34 28 11 -18 -26 28 9 -35 -26 -28 -32 42 36 -47 41 -20 -27 -19 24 27 23 31 -15 24 33 40 14 -22 -30 -49 -34 -19 23 -43 -32 36 -9 -14 -11 65 19