<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 07:40:00.000"
URSICode="SMK29"
StationName="Santa Maria"
GeoLatitude="-29.69"
GeoLongitude="307.81"
Source="Ionosonde"
SourceType="DPS-4D"
ScalerType="auto">
<SystemInfo UMLStationID="129">
<FrequencyStepping StartFrequency="2.0" StopFrequency="15.0">
<LinearStepping Step="0.025" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="2.5" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.23 (113) 07:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611304230740001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.275" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.947" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.926" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="110.000" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="20.000" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="240.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="217.604" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="201.254" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.754" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.329" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.708" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.549" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.420" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.880" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="38">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 220.000 220.000 222.500 222.500 222.500 225.000 225.000 226.250 227.500 228.750 230.000 231.250 232.500 235.000 237.500 240.000 245.000 247.500 252.049 259.410 273.354 309.861
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 66 66 72 75 75 75 75 75 75 75 75 72 75 75 75 75 66 60 51 54 57 54 0 0 0 0 0 90 81 81 81 78 84 81 96 93 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 10.9375 -1.5625 4.6875 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="316">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.604 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21213934 0.23390245 0.2526677 0.26895854 0.28319094 0.29565945 0.30659118 0.31614733 0.32445762 0.331616 0.33769703 0.34275886 0.34684667 0.3499937 0.352225 0.3535571 0.354 0.3538169 0.35312194 0.35206616 0.35058403 0.34861574 0.3462502 0.3433677 0.34006724 0.336247 0.33195284 0.32717335 0.32179055 0.31589526 0.3093662 0.30218917 0.2942784 0.28568256 0.27623004 0.26589635 0.25450236 0.24202472 0.22809964 0.21270788 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.20614286 0.21257143 0.219 0.22542857 0.23185714 0.23828572 0.24471429 0.25114286 0.25757143 0.264 0.27042857 0.27685714 0.2832857 0.28971428 0.29614285 0.30257142 0.309 0.31542858 0.32185715 0.32828572 0.3347143 0.34114286 0.34757143 0.354 0.39946234 0.44850612 0.5007675 0.5561582 0.6147782 0.6769141 0.7429604 0.8133936 0.8887694 0.969711 1.0568769 1.1509515 1.2525581 1.362173 1.4799442 1.6054742 1.7376382 1.8744 2.0129726 2.150198 2.2830577 2.4091392 2.5267391 2.6350005 2.7335746 2.8225508 2.9022348 2.9730384 3.0354064 3.0897698 3.136541 3.1760657 3.2086554 3.234555 3.2539678 3.267041 3.273873 3.275 3.2746837 3.2711346 3.2638102 3.252919 3.2386699 3.2212713 3.2009299 3.1778486 3.1522274 3.1242602 3.0941365 3.0620391 3.0281446 2.992622 2.955634 2.917336 2.8778756 2.8373926 2.7960205 2.7538848 2.7111037 2.6677885 2.6240437 2.579967 2.5356495 2.4911761 2.4466262 2.4020722 2.3575823 2.3132186 2.2690387 2.2250948 2.1814356 2.1381047 2.0951416 2.0525827 2.0104606 1.9688041 1.9276395 1.8869896 1.8468748 1.8073131 1.7683196 1.7299076 1.6920882 1.6548707 1.6182626 1.5822695 1.5468959 1.5121447 1.4780176 1.444515 1.4116364 1.3793802 1.3477441 1.3167248 1.2863183 1.25652 1.2273247 1.1987267 1.1707196 1.1432968 1.1164513 1.0901756 1.0644622 1.0393031 1.0146902 0.9906151 0.9670695 0.9440447 0.921532 0.89952266 0.8780079 0.85697883 0.8364266 0.81634235 0.7967172 0.7775425 0.7588092 0.7405088 0.7226326 0.7051719 0.68811834 0.67146343 0.6551988 0.6393164 0.6238079 0.6086654 0.5938811 0.579447 0.56535554 0.5515992 0.5381706 0.52506226 0.51226723 0.49977833 0.4875887 0.47569153 0.46408013 0.45274797 0.44168866 0.4308959 0.42036352 0.41008547 0.40005583 0.39026883 0.3807188 0.37140015 0.36230743 0.35343537 0.3447787 0.33633235 0.32809135 0.32005078 0.3122059 0.30455208 0.2970847 0.2897993 0.28269154 0.2757572 0.26899207 0.2623921 0.2559533 0.24967183 0.24354386 0.2375657 0.23173372 0.22604439 0.22049426 0.21507996 0.20979819 0.20464575 0.19961949 0.19471635 0.18993333 0.18526751 0.18071605 0.17627618 0.17194514 0.1677203 0.16359907 0.15957895 0.15565743 0.15183212 0.14810067 0.1444608 0.14091025 0.13744687 0.13406849 0.13077304 0.12755851 0.124422915 0.12136432 0.11838083 0.11547062 0.11263189 0.10986288 0.107161894 0.10452726 0.10195735 0.09945059 0.09700541 0.09462032 0.09229383 0.090024516 0.08781096 0.085651815 0.08354573 0.08149141 0.07948758 0.077533 0.07562646 0.07376679 0.071952835 0.07018346 0.06845759 0.066774145 0.06513209 0.06353039 0.06196808 0.060444176 0.05895774 0.05750785 0.056093603 0.054714132 0.05336858 0.052056108 0.05077591

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="3.275" PeakHeight="217.604" Num="5" zHalfNm="201.254" Error="0.758">
-39.948 4.176 -2.886 1.308 -0.254
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="-1256.0283" C="0.23477928" Error="0.0172"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6549.0" A="1.01408186E11" B="-3.1172788E7" C="2395.6406" Error="0.0172"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6553.0" A="1.2682123E13" B="-3.8731991E9" C="295724.88" Error="0.019"/>
<QuasiParabolic ID="5" StartDistance="6553.0" EndDistance="6555.0" A="4.36884393E12" B="-1.33595533E9" C="102130.81" Error="0.01"/>
<QuasiParabolic ID="6" StartDistance="6555.0" EndDistance="6559.0" A="1.41333994E13" B="-4.3152246E9" C="329382.47" Error="0.00891"/>
<QuasiParabolic ID="7" StartDistance="6559.0" EndDistance="6572.0" A="3.6298694E13" B="-1.10739671E10" C="844609.06" Error="0.0341"/>
<QuasiParabolic ID="8" StartDistance="6572.0" EndDistance="6587.604" A="-3.8147937E13" B="1.15817339E10" C="-879044.4" Error="0.00583"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="217.604" PeakDensity="133072.27" PeakScaleHeight="12.549" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
