% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 134 98 86 104 102 90 107 91 142 281 396 314 194 202 177 245 444 475 263 287 232 262 224 144 242 221 160 275 118 72 152 151 86 69 141 114 91 85 69 47 52 21 77 59 29 35 35 48 94 84 65 63 78 79 74 36 66 24 65 31 32 8 17 46 35 44 -9 37 28 50 48 33 32 -30 -35 -36 45 22 -43 -19 5 33 34 -32 10 -40 -36 -17 -25 -33 -30 -42 -38 -11 18 -29 -12 -26 -37 36 10 -32 -13 -33 -18 27 3 -23 -14 6 -26 41 25 -30 35 22 9 29 -35 16 26 -20 -7 26 27 41 -29 27