% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 106 81 81 54 41 -16 -5 18 56 116 111 108 153 214 333 399 293 368 293 262 256 197 173 157 109 115 24 102 48 55 53 59 22 41 35 8 67 -19 50 37 -17 35 33 26 -10 -33 -22 -6 -28 -26 -27 -34 17 -33 -36 -42 -32 -27 -29 -47 -16 -24 28 14 -11 14 46 51 56 111 100 51 112 104 114 90 109 150 164 88 65 62 68 80 56 78 30 70 55 40 41 59 32 34 19 -28 40 -34 2 37 23 52 50 57 -14 -42 26 -25 18 -23 -25 13 12 -29 -40 -32 -14 16 -10 21 -26 -32 -26 -17 -19 -13 -37 21