% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 64 Frequency Bands are 0.01562500 Hz wide(first frequency band is centered at 0.00830078) 140 119 102 108 268 1396 1958 2406 2065 1728 1257 1224 1283 1046 751 661 698 545 523 460 532 363 382 306 290 283 284 220 234 188 199 182 162 138 130 121 102 111 99 91 106 76 74 50 69 60 48 52 63 18 20 33 4 21 -29 -28 -18 15 -29 13 -12 -13 -33 -17