% Echo Location Surface Spectrum in units of mm/sqrt(Hz) % 128 Frequency Bands are 0.00781250 Hz wide 112 40 43 76 63 10 46 51 126 155 185 244 263 204 187 255 223 123 198 238 277 218 222 268 225 223 434 287 278 306 234 330 130 173 138 119 196 53 56 100 97 66 96 46 85 107 93 40 28 59 82 73 77 115 120 108 102 94 111 17 43 62 65 48 55 46 43 59 44 71 18 36 50 -22 41 -24 33 -17 -25 21 48 -33 -36 29 54 28 -12 -37 -31 -21 -30 33 -20 -34 -18 -31 -11 38 -37 -7 23 31 -9 29 -19 -21 27 -22 33 -16 36 12 32 -2 -14 36 -21 -32 -19 23 -8 -18 -12 24 -30 -12 22 28