% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 852 330 209 215 234 247 218 183 152 162 217 246 269 233 262 155 215 225 238 211 141 148 93 118 117 105 67 91 105 100 107 67 105 67 63 31 92 89 57 73 64 53 33 73 53 58 36 62 16 5 37 26 31 28 22 26 19 13 -23 32 -19 40 2 9 -19 19 24 -28 22 44 -18 18 36 25 -29 31 -28 23 13 53 -10 -19 -29 -24 24 -22 35 -32 28 -32 -24 -35 -29 -42 -27 20 28 -16 -27 25 -28 18 23 19 -32 -26 12 19 32 38 25 -35 -20 -18 52 -12 69 20 19 -20 -23 26 16 -28 -19 -32 13 -25