<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 23:10:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 80% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.06 (126) 23:10:00</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">
FF202612605062310001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.493" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.361" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="255.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="255.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="287.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="265.509" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.498" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.311" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.179" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.237" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.951" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.730" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.220" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
255.000 257.500 257.500 260.000 262.500 262.500 262.500 265.000 267.500 270.000 270.000 272.500 272.500 272.500 277.500 277.500 280.000 282.500 282.500 285.000 287.500 292.500 297.500 302.500 306.250 310.000 314.724 320.077 326.192 333.247 341.475
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 90 93 90 72 75 105 105 105 102 93 93 75 75 111 111 87 87 90 84 81 75 75 75 0 87 72 0 0 0 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 1.5625 1.5625 1.5625 1.5625 1.5625 -10.9375 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="424">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.83333 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 177.66667 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 211.5 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 265.509 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0
</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 0.35354906 0.35306174 0.35235173 0.35142186 0.35027584 0.34891838 0.3472823 0.34552038 0.3434953 0.34128824 0.33877015 0.3360937 0.33313656 0.32991865 0.32646134 0.32272556 0.31874058 0.31447914 0.30992344 0.30501232 0.29980785 0.29430088 0.288361 0.2820187 0.27533066 0.26815805 0.26053688 0.25234902 0.24358158 0.23417579 0.22406323 0.21320657 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 0.20151724 0.20606896 0.21062069 0.21517241 0.21972413 0.22427586 0.22882758 0.2333793 0.23793103 0.24248275 0.24703449 0.2515862 0.25613794 0.26068965 0.26524138 0.2697931 0.27434483 0.27889654 0.28344828 0.288 0.29255173 0.29710343 0.30165517 0.30620688 0.31075862 0.31531036 0.31986207 0.3244138 0.3289655 0.33351725 0.33806896 0.3426207 0.3471724 0.35172415 0.354 0.3705444 0.40557072 0.44305292 0.48283347 0.524798 0.5688856 0.615061 0.66333055 0.7137327 0.7663222 0.8211615 0.8783406 0.93794954 1.0000862 1.0648295 1.1323007 1.2025498 1.2756779 1.3517169 1.4307053 1.512642 1.5974818 1.68514 1.7754872 1.8683057 1.9633548 2.0602918 2.1587381 2.2582266 2.3582778 2.4583404 2.5578747 2.6562886 2.7530334 2.8475764 2.9393888 3.0280633 3.1131368 3.194299 3.2712312 3.34368 3.4114318 3.4743352 3.5322516 3.585078 3.6327431 3.6751983 3.7124019 3.7443175 3.770944 3.7922575 3.808259 3.818945 3.824311 3.825 3.8246484 3.8218002 3.8161898 3.807935 3.7971547 3.7839677 3.7684927 3.7508476 3.7311482 3.70951 3.686046 3.6608663 3.6340797 3.6057918 3.5761056 3.5451207 3.5129342 3.4796398 3.4453275 3.410085 3.3739958 3.3371403 3.299596 3.2614367 3.2227328 3.183552 3.1439583 3.104013 3.063774 3.0232966 2.9826326 2.9418318 2.9009407 2.860003 2.81906 2.7781515 2.7373133 2.6965797 2.655983 2.615553 2.5753176 2.5353029 2.4955328 2.45603 2.4168146 2.377906 2.3393219 2.3010778 2.2631888 2.2256682 2.1885278 2.1517787 2.1154308 2.0794926 2.043972 2.0088758 1.97421 1.9399794 1.9061886 1.872841 1.8399396 1.8074863 1.775483 1.7439307 1.7128298 1.6821803 1.6519818 1.6222335 1.5929339 1.5640815 1.5356743 1.5077099 1.4801856 1.4530988 1.426446 1.4002241 1.3744295 1.3490583 1.3241066 1.2995703 1.2754452 1.251727 1.2284112 1.2054931 1.182968 1.1608315 1.1390784 1.117704 1.0967033 1.0760715 1.0558035 1.0358943 1.0163388 0.9971322 0.9782692 0.9597449 0.9415542 0.9236921 0.9061536 0.8889338 0.8720276 0.8554301 0.8391365 0.82314175 0.80744123 0.79203 0.77690333 0.7620566 0.74748504 0.7331841 0.7191492 0.70537585 0.69185954 0.67859584 0.6655805 0.65280914 0.64027745 0.62798136 0.61591667 0.6040793 0.5924652 0.5810704 0.5698911 0.55892324 0.5481632 0.53760713 0.5272514 0.51709235 0.5071264 0.49735004 0.4877598 0.47835228 0.4691241 0.460072 0.45119274 0.44248307 0.43393987 0.4255601 0.41734064 0.40927857 0.40137094 0.3936149 0.38600752 0.3785461 0.37122786 0.36405015 0.3570103 0.3501057 0.34333384 0.3366922 0.33017832 0.32378975 0.31752416 0.31137922 0.30535263 0.2994421 0.2936455 0.28796065 0.28238538 0.2769176 0.27155533 0.2662965 0.26113915 0.25608134 0.2511212 0.2462568 0.24148637 0.23680806 0.23222016 0.22772089 0.22330856 0.21898153 0.21473815 0.21057679 0.20649591 0.20249394 0.19856937 0.19472073 0.19094653 0.18724535 0.1836158 0.18005648 0.17656605 0.17314318 0.16978656 0.16649492 0.163267 0.16010159 0.15699747 0.15395346 0.1509684 0.14804116 0.14517061 0.14235567 0.13959526 0.13688831 0.13423382 0.13163075 0.1290781 0.12657493 0.12412027 0.12171318 0.11935272 0.11703801 0.11476817 0.11254232 0.1103596 0.1082192 0.10612028 0.10406205 0.102043726 0.100064516 0.098123685 0.09622047 0.09435416 0.09252404 0.090729386 0.088969536 0.08724381 0.085551545 0.08389209 0.08226482 0.08066909 0.07910431 0.07756988 0.0760652 0.0745897 0.07314281 0.07172398 0.07033267 0.06896834 0.06763047 0.06631854 0.065032065 0.06377053 0.06253347 0.0613204 0.060130857 0.058964387 0.05782054 0.05669888 0.055598974 0.054520402 0.05346275 0.052425615 0.051408596 0.050411303

</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="3.825" PeakHeight="265.509" Num="5" zHalfNm="244.498" Error="1.352">
-54.827 1.432 -1.218 0.817 -0.213
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6513.833" A="-1.32737196E11" B="4.0968268E7" C="-3161.0066" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6513.833" EndDistance="6547.667" A="0.0" B="609.75433" C="-0.05357377" Error="0.0112"/>
<QuasiParabolic ID="3" StartDistance="6547.667" EndDistance="6550.0" A="-1.07468613E12" B="3.2808688E8" C="-25040.055" Error="0.0376"/>
<QuasiParabolic ID="4" StartDistance="6550.0" EndDistance="6580.0" A="6.5224114E10" B="-1.9977314E7" C="1529.7307" Error="0.0388"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6581.0" A="5.3801349E12" B="-1.63545178E9" C="124286.15" Error="1.21E-10"/>
<QuasiParabolic ID="6" StartDistance="6581.0" EndDistance="6595.0" A="7.1637978E12" B="-2.17751603E9" C="165470.19" Error="0.0371"/>
<QuasiParabolic ID="7" StartDistance="6595.0" EndDistance="6607.0" A="1.99954971E13" B="-6.0688579E9" C="460492.3" Error="0.0189"/>
<QuasiParabolic ID="8" StartDistance="6607.0" EndDistance="6620.0" A="1.62056152E13" B="-4.9216256E9" C="373672.84" Error="0.027"/>
<QuasiParabolic ID="9" StartDistance="6620.0" EndDistance="6635.509" A="-3.6352314E13" B="1.09569024E10" C="-825611.75" Error="0.0102"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="101.5" Depth="0.154"/>
<TopsideChapman PeakHeight="265.509" PeakDensity="181521.4" PeakScaleHeight="15.951" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
