<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-06-03 -154 00:40:00.000"
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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.06.03 (154) 00:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.23" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.00" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="73.46457" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202615406030040001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.665" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.745" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.100" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="3.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="244.794" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.740" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.693" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.875" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.021" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.718" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.980" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.370" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.833 241.667 242.500 247.500 247.500 247.500 250.000 250.000 252.500 255.000 257.500 260.000 260.000 260.000 265.000 272.500 272.500 277.500 280.000 282.500 287.500 290.000 297.500 309.991 333.616
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 0 0 90 90 93 0 0 87 90 90 96 93 96 93 81 81 75 0 75 81 75 72 69 72 72 72 84 87 69 69
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="368">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.75 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.25 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 244.794 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0
</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 0.35347393 0.352762 0.35182965 0.3506064 0.3491724 0.34738788 0.34533682 0.34299496 0.34037665 0.33746356 0.3342082 0.33063674 0.3267138 0.32253745 0.31796023 0.31297803 0.30765462 0.30189866 0.29567927 0.28909197 0.28191414 0.2741947 0.26597098 0.25704813 0.24743798 0.23701459 0.22570056 0.21345264 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 0.20258823 0.2077647 0.21294117 0.21811765 0.22329412 0.2284706 0.23364706 0.23882353 0.244 0.24917647 0.25435293 0.2595294 0.2647059 0.26988235 0.27505884 0.2802353 0.28541178 0.29058823 0.2957647 0.30094117 0.30611765 0.3112941 0.3164706 0.32164705 0.32682353 0.332 0.33717647 0.34235293 0.3475294 0.3527059 0.354 0.38439175 0.42660564 0.47089535 0.517403 0.56633395 0.6178701 0.67223406 0.7296698 0.7904004 0.8546742 0.9227543 0.99488497 1.0713131 1.1522632 1.2379018 1.3284026 1.4237907 1.524029 1.6289488 1.7382443 1.851424 1.9678398 2.0866623 2.2069407 2.3276334 2.4476326 2.5658941 2.6813667 2.7931612 2.9004433 3.0026064 3.099087 3.1894693 3.273477 3.3508859 3.42153 3.4853435 3.5422597 3.5922675 3.6353784 3.6715822 3.7009172 3.7233975 3.7390368 3.7478528 3.75 3.7499177 3.7472217 3.7408504 3.7309856 3.7178104 3.701508 3.6822608 3.6602485 3.635649 3.6086366 3.5793812 3.5480487 3.5148 3.479791 3.4431717 3.405087 3.3656757 3.3250704 3.2833984 3.2407806 3.1973321 3.1531622 3.1083744 3.0630665 3.0173306 2.9712536 2.9249172 2.878398 2.8317673 2.7850924 2.738435 2.6918538 2.645402 2.59913 2.5530832 2.5073047 2.4618328 2.4167035 2.3719497 2.3276007 2.2836835 2.2402227 2.1972399 2.1547546 2.1127849 2.0713453 2.03045 1.9901104 1.9503365 1.9111369 1.8725185 1.8344872 1.7970474 1.7602023 1.7239541 1.6883042 1.6532526 1.618799 1.584942 1.5516794 1.5190088 1.4869266 1.4554291 1.4245118 1.39417 1.3643986 1.335192 1.306544 1.2784486 1.2508992 1.2238894 1.1974119 1.1714598 1.1460259 1.1211027 1.0966829 1.0727587 1.0493226 1.026367 1.003884 0.98186576 0.96030474 0.93919307 0.918523 0.89828676 0.87847674 0.85908514 0.8401045 0.8215271 0.80334556 0.7855524 0.76814026 0.7511018 0.7344299 0.71811736 0.7021572 0.6865424 0.6712662 0.6563217 0.6417024 0.62740165 0.6134129 0.5997299 0.5863463 0.5732561 0.56045294 0.5479311 0.5356846 0.5237077 0.5119947 0.50054014 0.4893385 0.47838438 0.46767256 0.45719787 0.44695523 0.43693966 0.42714632 0.41757038 0.4082072 0.39905214 0.39010072 0.38134852 0.37279117 0.3644245 0.3562443 0.3482465 0.3404272 0.33278236 0.3253082 0.31800103 0.31085712 0.3038729 0.29704487 0.29036954 0.28384358 0.2774637 0.27122664 0.26512924 0.25916842 0.25334117 0.24764448 0.24207552 0.2366314 0.23130935 0.22610667 0.22102071 0.21604888 0.2111886 0.20643742 0.2017929 0.19725265 0.19281434 0.18847571 0.18423453 0.18008862 0.17603585 0.17207414 0.16820146 0.1644158 0.16071524 0.15709785 0.15356179 0.15010521 0.14672635 0.14342347 0.14019485 0.13703884 0.13395381 0.13093817 0.12799037 0.12510885 0.12229217 0.11953885 0.11684748 0.11421666 0.111645035 0.10913127 0.10667407 0.104272164 0.101924315 0.0996293 0.09738593 0.09519306 0.09304953 0.09095426 0.08890615 0.08690413 0.084947184 0.083034284 0.08116445 0.0793367 0.077550106 0.07580373 0.074096665 0.07242803 0.070796974 0.06920263 0.06764419 0.066120826 0.06463177 0.06317623 0.06175347 0.060362745 0.059003334 0.05767453 0.05637565 0.055106018 0.05386497 0.05265187 0.05146609 0.050307006

</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="3.75" PeakHeight="244.794" Num="5" zHalfNm="226.74" Error="1.303">
-46.495 1.885 -1.648 0.832 -0.118
</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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="-3852.192" C="0.63178015" Error="0.0679"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6560.0" A="1.4321469E11" B="-4.3837312E7" C="3354.6367" Error="0.0679"/>
<QuasiParabolic ID="4" StartDistance="6560.0" EndDistance="6567.0" A="-3.29484829E11" B="1.002784E8" C="-7629.7925" Error="0.022"/>
<QuasiParabolic ID="5" StartDistance="6567.0" EndDistance="6576.0" A="7.4842767E12" B="-2.27942656E9" C="173556.83" Error="0.0621"/>
<QuasiParabolic ID="6" StartDistance="6576.0" EndDistance="6580.0" A="1.1976077E13" B="-3.64554598E9" C="277428.4" Error="6.01E-4"/>
<QuasiParabolic ID="7" StartDistance="6580.0" EndDistance="6587.0" A="2.43032822E13" B="-7.3924168E9" C="562145.06" Error="0.0177"/>
<QuasiParabolic ID="8" StartDistance="6587.0" EndDistance="6600.0" A="2.88324531E13" B="-8.7676017E9" C="666531.3" Error="0.0375"/>
<QuasiParabolic ID="9" StartDistance="6600.0" EndDistance="6614.794" A="-4.4995315E13" B="1.36044483E10" C="-1028320.94" Error="0.0133"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="244.794" PeakDensity="174472.7" PeakScaleHeight="13.718" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
