% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 167 17 20 30 31 -13 -20 50 48 121 98 181 232 309 308 337 375 394 181 224 300 114 173 198 188 160 116 88 102 81 127 51 118 97 46 78 55 4 43 12 -15 77 70 60 44 47 25 -26 36 30 27 59 57 -22 64 28 27 47 -22 -25 33 30 26 -22 20 -7 -22 47 -21 18 -13 28 25 12 -4 35 17 -8 -26 10 -28 -24 -22 -36 -27 -30 -17 -21 22 -27 -9 -30 -28 -17 -28 -28 11 29 -18 -27 14 -32 13 15 -32 16 -27 9 15 -19 18 15 -23 -23 -18 -12 14 27 11 -25 -19 15 21 -20 35 13 23 31