% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 76 52 72 48 40 31 -28 79 182 285 126 46 117 158 201 308 200 359 502 444 408 391 333 447 484 254 323 215 325 262 206 224 180 312 234 193 181 102 136 166 89 121 92 138 134 43 112 81 88 88 44 89 51 47 27 64 61 35 60 49 29 -25 41 57 22 -7 33 -16 17 29 29 -25 43 47 27 50 22 29 49 -25 52 54 55 63 69 -3 41 36 45 38 40 54 34 47 32 41 -19 -24 -13 29 -24 44 -28 16 -29 7 8 43 27 -17 -23 31 -16 -8 17 -25 -15 -15 14 -22 19 24 -19 31 26 -38 -1 -25