% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 124 156 115 129 96 97 209 805 1143 853 524 607 341 294 232 179 217 242 215 191 151 173 144 107 121 93 120 53 81 118 144 99 172 84 79 73 59 37 40 24 58 50 -13 19 25 -9 22 -21 4 -19 -21 7 -37 -33 -35 -16 -24 -33 -37 -27 -36 -31 -23 -34 -21 -21 -18 -35 -25 -32 -24 -28 -29 -36 -21 -35 -32 -29 -38 -27 -28 -39 -19 -39 -33 -31 -17 -19 -28 -33 -28 -22 -18 -22 -25 -30 -2 -29 -25 26 -18 6 -23 6 19 -31 22 8 -14 -12 -14 -8 10 -25 -12 35 57 -24 -15 20 9 -23 -16 -31 -16 -6 33 22