<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-05 -125 23:35:00.000"
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" >
2026.05.05 (125) 23:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612505052335001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.583" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.913" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.225" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.225" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.625" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="295.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="295.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="297.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.225" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.225" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="261.273" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="243.208" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.088" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.905" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.807" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.559" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.160" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="5">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.225 3.25 3.275 3.3 3.325
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
295.000 297.500 301.953 307.695 315.379
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 93 81 0 102
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="377">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.993 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.986 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 214.979 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 261.273 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0
</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 0.3538872 0.35362422 0.35313663 0.3524263 0.35157037 0.35049725 0.34921128 0.34779054 0.3460947 0.34420434 0.34212717 0.33980232 0.33724248 0.33452845 0.33153966 0.32832825 0.3248506 0.32116237 0.31722817 0.31296375 0.30846837 0.30362225 0.29853725 0.2931004 0.28732708 0.28114426 0.27460676 0.2676488 0.26021668 0.25227797 0.24382874 0.23479763 0.22504477 0.21462576 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20006162 0.2044625 0.20886338 0.21326426 0.21766514 0.22206602 0.2264669 0.23086777 0.23526865 0.23966953 0.24407041 0.24847129 0.25287217 0.25727305 0.26167393 0.2660748 0.2704757 0.27487656 0.27927744 0.28367832 0.2880792 0.29248008 0.296881 0.30128187 0.30568275 0.31008363 0.3144845 0.3188854 0.32328627 0.32768714 0.33208802 0.3364889 0.34088978 0.34529066 0.34969154 0.354 0.35475367 0.39147612 0.43020087 0.47121376 0.51476455 0.56105435 0.6102403 0.66248626 0.7178808 0.77647895 0.83831954 0.9033741 0.97158575 1.0428677 1.1170745 1.1940231 1.2735575 1.3554293 1.4393982 1.525225 1.612624 1.7013181 1.7910177 1.8814143 1.9722111 2.063077 2.1536736 2.2436821 2.332747 2.4204867 2.5065408 2.5905147 2.6720147 2.7506287 2.8259308 2.8974907 2.9648893 3.0277064 3.0854993 3.1378756 3.184451 3.224864 3.2587845 3.2859352 3.3060827 3.3190503 3.324726 3.325 3.324077 3.3198733 3.312423 3.301894 3.2884545 3.2722723 3.2535136 3.2323427 3.2089207 3.1834054 3.1559505 3.1267054 3.095815 3.0634186 3.0296512 2.9946415 2.9585133 2.9213848 2.883369 2.8445723 2.805097 2.7650392 2.7244897 2.6835346 2.6422546 2.6007252 2.559018 2.517199 2.4753308 2.4334712 2.3916736 2.349988 2.3084607 2.2671344 2.226048 2.1852376 2.1447365 2.1045747 2.064779 2.0253751 1.9863849 1.9478285 1.9097241 1.8720875 1.8349328 1.7982724 1.7621169 1.7264755 1.6913558 1.6567643 1.6227059 1.5891848 1.5562037 1.5237646 1.4918685 1.4605155 1.429705 1.3994356 1.3697054 1.3405118 1.3118515 1.2837211 1.2561162 1.2290324 1.2024649 1.1764084 1.1508574 1.1258062 1.1012487 1.0771788 1.0535899 1.0304756 1.0078291 0.9856436 0.9639123 0.94262815 0.9217841 0.9013731 0.881388 0.8618218 0.8426671 0.82391703 0.80556434 0.787602 0.770023 0.75282013 0.73598665 0.7195155 0.70339984 0.6876329 0.672208 0.65711844 0.6423577 0.6279192 0.61379653 0.59998345 0.58647364 0.573261 0.56033945 0.54770297 0.5353458 0.523262 0.511446 0.49989215 0.48859495 0.477549 0.46674895 0.45618963 0.4458659 0.43577272 0.42590514 0.4162583 0.40682748 0.39760798 0.38859522 0.3797847 0.37117207 0.36275297 0.35452318 0.34647855 0.338615 0.3309286 0.3234154 0.31607163 0.3088935 0.30187738 0.29501966 0.28831682 0.28176546 0.2753622 0.2691037 0.26298678 0.25700828 0.25116512 0.24545422 0.23987268 0.23441759 0.2290861 0.22387546 0.21878295 0.21380591 0.20894176 0.20418794 0.199542 0.19500148 0.19056404 0.18622734 0.18198909 0.1778471 0.17379917 0.16984321 0.16597712 0.16219887 0.15850648 0.15489802 0.15137157 0.14792527 0.14455734 0.14126597 0.13804947 0.1349061 0.13183421 0.12883219 0.12589847 0.123031475 0.12022971 0.117491685 0.114815965 0.11220112 0.109645784 0.107148595 0.10470823 0.10232342 0.09999288 0.09771539 0.09548974 0.09331475 0.09118928 0.08911219 0.087082386 0.0850988 0.08316037 0.08126608 0.07941492 0.0776059 0.07583809 0.07411052 0.072422296 0.070772514 0.069160305 0.067584805 0.06604519 0.06454064 0.06307035 0.061633546 0.06022947 0.05885737 0.05751652 0.05620621 0.054925747 0.05367445 0.05245165 0.051256705 0.05008898

</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="3.325" PeakHeight="261.273" Num="5" zHalfNm="243.208" Error="0.228">
-46.031 -0.473 0.297 -0.168 0.081
</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="6514.993" A="-1.24121211E11" B="3.8309016E7" C="-2955.8174" Error="0.00182"/>
<QuasiParabolic ID="2" StartDistance="6514.993" EndDistance="6549.986" A="0.0" B="-2641.503" C="0.44548914" Error="0.0551"/>
<QuasiParabolic ID="3" StartDistance="6549.986" EndDistance="6571.0" A="1.11124406E11" B="-3.3963976E7" C="2595.2202" Error="0.062"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6583.0" A="-1.01737366E11" B="3.0824268E7" C="-2334.6414" Error="0.0185"/>
<QuasiParabolic ID="5" StartDistance="6583.0" EndDistance="6591.0" A="6.7222032E12" B="-2.04237658E9" C="155131.62" Error="0.0671"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6620.0" A="1.41441053E13" B="-4.29450906E9" C="325980.7" Error="0.0501"/>
<QuasiParabolic ID="7" StartDistance="6620.0" EndDistance="6631.273" A="-4.1600118E13" B="1.2546646E10" C="-946009.9" Error="0.00989"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="104.979" Depth="0.154"/>
<TopsideChapman PeakHeight="261.273" PeakDensity="137166.56" PeakScaleHeight="13.559" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
