% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 100 70 94 50 35 39 -21 102 156 227 176 141 300 464 546 295 383 249 152 219 74 135 65 58 98 38 -23 70 66 62 42 -43 -27 68 60 -9 46 -6 88 46 27 -32 -50 -42 -52 -46 -49 -41 -47 -10 7 54 -35 -21 42 46 8 -25 48 -35 52 -41 66 45 65 42 39 36 14 -4 48 -27 55 -24 55 21 55 50 59 27 -15 40 33 31 28 -22 22 38 24 -16 -31 -31 -26 15 -39 -34 35 28 43 -40 -22 17 21 -27 11 30 15 39 -15 28 -38 -23 17 24 -34 -23 -39 -20 -23 24 -22 39 -34 -42 22 27 31 -19