<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-17 -107 06:50:00.000"
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" >
2026.04.17 (107) 06:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610704170650001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.775" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.024" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="220.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="257.472" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="232.782" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.484" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.064" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.943" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.972" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.665" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.860" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.200" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="42">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.3 3.325 3.35 3.375 3.4 3.425 3.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
220.000 220.000 220.000 220.000 220.625 221.250 221.875 222.500 223.750 225.000 225.000 225.000 227.500 227.500 227.500 230.000 230.000 232.500 232.500 233.333 234.167 235.000 235.000 237.500 240.000 240.000 242.500 242.500 243.860 245.396 247.145 249.152 251.481 254.216 257.472 261.415 266.287 272.461 280.539 291.562 307.500 332.584
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 63 0 66 0 0 0 66 0 66 66 66 66 69 69 72 48 42 54 0 0 63 66 69 87 93 90 93 96 93 81 81 93 93 81 78 90 90 90 87 75 66
</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 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="381">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.66667 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 161.33333 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 232.782 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0
</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 0.353812 0.35324875 0.3523882 0.35108605 0.34949994 0.34749252 0.3450799 0.34228173 0.3391207 0.33555436 0.33154994 0.32708573 0.3222145 0.31684378 0.31099588 0.3045735 0.29760364 0.290026 0.28171796 0.27274016 0.2629728 0.2523031 0.24063194 0.22781542 0.21374473 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.204 0.21 0.216 0.222 0.228 0.234 0.24 0.246 0.252 0.258 0.264 0.27 0.276 0.282 0.288 0.294 0.3 0.306 0.312 0.318 0.324 0.33 0.336 0.342 0.348 0.354 0.3905883 0.4313075 0.4755036 0.52257013 0.5721416 0.62403536 0.6782813 0.7350175 0.7944968 0.85701877 0.9229848 0.9928251 1.0670248 1.1461288 1.23071 1.3213292 1.4185447 1.5226965 1.633904 1.7517607 1.8752624 2.0025659 2.1312835 2.2585957 2.3819246 2.4992018 2.6090274 2.71071 2.8040688 2.8893046 2.9667323 3.0368154 3.1000264 3.1568139 3.2076168 3.2527974 3.2926977 3.3276114 3.3577828 3.383432 3.404726 3.4218116 3.4348013 3.4437792 3.4488037 3.45 3.449935 3.4479964 3.4434469 3.4363985 3.4269648 3.4152584 3.4013927 3.3854797 3.3676305 3.347955 3.3265607 3.3035536 3.2790368 3.253111 3.2258742 3.197422 3.1678464 3.1372364 3.1056783 3.0732548 3.0400453 3.0061266 2.9715714 2.9364502 2.9008296 2.864773 2.8283412 2.7915921 2.75458 2.7173572 2.679972 2.6424713 2.6048985 2.5672946 2.5296984 2.4921463 2.4546723 2.417308 2.3800833 2.343026 2.3061614 2.2695138 2.2331054 2.1969564 2.1610858 2.1255112 2.090248 2.0553112 2.0207138 1.986468 1.9525843 1.9190724 1.8859413 1.8531984 1.8208506 1.7889037 1.7573628 1.7262322 1.6955153 1.6652151 1.6353338 1.605873 1.5768338 1.5482168 1.520022 1.4922491 1.4648972 1.437965 1.4114511 1.3853537 1.3596703 1.3343985 1.3095357 1.2850788 1.2610246 1.2373697 1.2141103 1.1912429 1.1687634 1.146668 1.1249522 1.103612 1.0826427 1.0620401 1.0417995 1.0219166 1.0023865 0.9832044 0.96436584 0.9458659 0.92769986 0.90986294 0.89235026 0.87515706 0.85827863 0.84171003 0.8254466 0.8094835 0.79381615 0.77843964 0.7633494 0.74854076 0.7340091 0.7197498 0.70575845 0.69203043 0.67856133 0.6653467 0.65238225 0.6396636 0.62718654 0.6149468 0.60294026 0.5911628 0.57961035 0.5682789 0.55716455 0.54626334 0.5355714 0.52508503 0.5148005 0.504714 0.49482208 0.48512107 0.47560745 0.4662778 0.4571287 0.4481568 0.4393588 0.43073148 0.4222716 0.41397607 0.40584177 0.39786568 0.39004484 0.38237628 0.37485716 0.3674846 0.36025584 0.35316813 0.34621882 0.33940524 0.3327248 0.32617497 0.31975323 0.31345713 0.30728427 0.30123225 0.29529878 0.28948155 0.28377834 0.27818692 0.27270517 0.26733094 0.26206216 0.2568968 0.2518328 0.24686828 0.24200125 0.23722984 0.23255217 0.22796643 0.22347084 0.21906362 0.21474308 0.21050751 0.20635526 0.2022847 0.19829422 0.19438228 0.19054735 0.18678789 0.18310246 0.1794896 0.17594787 0.17247592 0.16907234 0.16573581 0.16246502 0.15925868 0.15611552 0.15303428 0.15001379 0.14705282 0.14415024 0.14130487 0.13851559 0.1357813 0.13310093 0.13047342 0.12789772 0.12537281 0.122897714 0.12047143 0.118093 0.11576149 0.11347598 0.111235544 0.10903932 0.106886424 0.104776 0.10270723 0.10067927 0.09869134 0.09674262 0.09483237 0.09295982 0.09112422 0.08932485 0.08756099 0.08583195 0.08413704 0.08247557 0.08084691 0.079250395 0.07768539 0.07615129 0.074647464 0.07317333 0.0717283 0.070311785 0.06892325 0.06756212 0.06622787 0.064919956 0.06363786 0.06238109 0.061149128 0.05994149 0.058757696 0.057597276 0.056459773 0.055344727 0.054251697 0.05318025 0.052129965 0.051100414 0.050091196

</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="3.45" PeakHeight="232.782" Num="5" zHalfNm="212.484" Error="1.368">
-49.609 6.677 -4.455 2.119 -0.514
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6505.667" A="-2.30120505E11" B="7.1024848E7" C="-5480.187" Error="0.00139"/>
<QuasiParabolic ID="2" StartDistance="6505.667" EndDistance="6531.333" A="0.0" B="-2416.1357" C="0.41140094" Error="0.0368"/>
<QuasiParabolic ID="3" StartDistance="6531.333" EndDistance="6553.0" A="1.14036842E11" B="-3.4995544E7" C="2684.8806" Error="0.0368"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6555.0" A="-1.56919346E12" B="4.78732608E8" C="-36513.055" Error="0.00286"/>
<QuasiParabolic ID="5" StartDistance="6555.0" EndDistance="6569.0" A="8.0801007E12" B="-2.46536934E9" C="188056.12" Error="0.0388"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6582.0" A="3.44141112E13" B="-1.0483031E10" C="798321.1" Error="0.0284"/>
<QuasiParabolic ID="7" StartDistance="6582.0" EndDistance="6602.782" A="-2.71789242E13" B="8.2325673E9" C="-623404.7" Error="0.00553"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="77.0" Depth="0.154"/>
<TopsideChapman PeakHeight="232.782" PeakDensity="147673.7" PeakScaleHeight="15.665" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
