% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 94 106 181 94 64 72 81 78 121 123 107 177 304 434 463 362 524 220 332 192 140 177 167 129 132 123 115 65 124 136 91 124 86 72 63 67 48 54 36 53 -13 31 42 -16 40 23 38 42 -19 15 11 38 -40 -21 -23 -32 35 -18 23 37 30 -33 18 -37 -16 -34 -27 -27 -20 4 -31 -16 13 -36 -20 17 -44 7 44 -3 -28 23 -41 -37 -29 -35 -33 -31 27 -43 -14 -20 -24 24 -24 15 -19 -22 -18 44 -42 -32 27 -38 -15 36 -15 16 29 -31 -22 -26 23 25 -34 29 -31 29 -28 22 -9 28 -16 44 -41 22 24 30