% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 435 133 96 87 90 114 78 142 116 111 184 164 170 248 303 327 438 349 336 276 574 408 419 358 274 466 449 489 332 227 185 221 269 265 219 146 137 179 103 108 199 -37 98 152 148 67 51 10 52 97 -78 37 25 -20 43 60 77 19 -23 40 41 38 -44 62 -49 41 58 -69 -80 -66 -95 19 -43 61 85 -30 60 40 -63 -80 -81 -74 -111 96 -39 -70 63 -79 -88 94 -95 31 -49 -101 -66 -43 -47 -68 57 86 108 66 -39 79 -82 58 61 47 87 -70 109 66 -73 -13 77 -69 -70 -60 -62 38 -85 -36 77 -77 60 -84 -72 -81