<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.19 (139) 23:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905192310001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.630" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.796" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.900" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.900" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="260.400" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="260.400" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="282.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.764" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="238.740" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.311" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.976" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.690" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.087" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.030" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
260.400 262.003 263.765 265.713 267.877 270.295 272.500 275.000 280.000 282.500 287.500 295.000 300.000 310.000 319.169
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 78 78 87 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -7.8125 1.5625 -1.5625 -1.5625 10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="347">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.46967 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.93933 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.409 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.764 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0
</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 0.35149595 0.35042334 0.34906456 0.34757245 0.34580705 0.34392038 0.34170678 0.33931962 0.3367686 0.33393037 0.33082408 0.32753432 0.32395366 0.32011035 0.31603435 0.3116434 0.30692798 0.30199406 0.29666528 0.2910485 0.2850023 0.278569 0.27177864 0.26452366 0.25680476 0.2485115 0.23965245 0.2301653 0.21994327 0.20899785 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 0.20027104 0.20473874 0.20920643 0.21367413 0.21814182 0.22260952 0.22707722 0.23154491 0.23601261 0.2404803 0.244948 0.2494157 0.2538834 0.2583511 0.26281878 0.26728648 0.27175418 0.27622187 0.28068957 0.28515726 0.28962496 0.29409266 0.29856035 0.30302805 0.30749574 0.31196344 0.31643113 0.32089883 0.32536653 0.32983422 0.33430192 0.3387696 0.3432373 0.347705 0.3521727 0.354 0.3784423 0.42154676 0.4670361 0.51511675 0.5659555 0.6197298 0.67658067 0.73664975 0.8000434 0.8668569 0.9371664 1.0109953 1.0883437 1.1692046 1.2534543 1.3409799 1.4315721 1.5249825 1.6208986 1.7189639 1.8187186 1.9196613 2.0212798 2.1229358 2.2240236 2.323872 2.421804 2.5171397 2.609172 2.697235 2.7806861 2.8589003 2.9313006 2.9973397 3.0565262 3.1084373 3.15268 3.1889374 3.2169418 3.2364995 3.2474637 3.25 3.2498796 3.2467525 3.239562 3.2285397 3.2139173 3.1959262 3.174796 3.150752 3.1240156 3.0948017 3.063319 3.0297694 2.9943466 2.957237 2.9186182 2.8786592 2.8375213 2.7953563 2.752308 2.7085116 2.6640942 2.619175 2.5738652 2.528268 2.4824803 2.436591 2.390683 2.3448322 2.299109 2.2535772 2.208296 2.1633189 2.1186943 2.0744662 2.0306745 1.9873548 1.9445385 1.9022541 1.8605264 1.8193772 1.7788252 1.7388867 1.6995755 1.6609029 1.6228782 1.5855088 1.5488001 1.5127562 1.4773793 1.4426705 1.4086294 1.3752546 1.3425436 1.310493 1.2790985 1.2483552 1.218257 1.1887977 1.1599704 1.1317675 1.1041814 1.0772038 1.0508261 1.0250393 0.9998346 0.9752025 0.9511337 0.92761856 0.90464735 0.88221043 0.86029786 0.8388999 0.8180067 0.7976084 0.7776951 0.7582572 0.73928493 0.7207687 0.7026989 0.685066 0.6678608 0.65107393 0.6346963 0.61871886 0.6031327 0.5879291 0.57309943 0.5586352 0.54452795 0.5307696 0.517352 0.5042672 0.49150756 0.4790653 0.46693295 0.45510325 0.44356892 0.43232292 0.42135835 0.41066846 0.40024662 0.39008632 0.38018122 0.37052515 0.361112 0.35193586 0.34299088 0.33427143 0.32577193 0.31748697 0.30941126 0.30153963 0.293867 0.28638843 0.2790991 0.27199435 0.26506954 0.25832015 0.25174186 0.24533036 0.23908149 0.23299116 0.22705539 0.22127032 0.21563214 0.21013719 0.20478183 0.19956256 0.19447596 0.18951868 0.18468745 0.17997909 0.1753905 0.17091864 0.16656059 0.16231345 0.1581744 0.15414073 0.15020974 0.14637886 0.14264554 0.1390073 0.13546173 0.13200648 0.12863927 0.12535785 0.12216005 0.11904373 0.11600684 0.11304735 0.11016329 0.10735275 0.10461386 0.1019448 0.09934378 0.096809074 0.094339006 0.091931924 0.08958622 0.087300345 0.085072756 0.082901984 0.08078657 0.07872512 0.076716244 0.07475861 0.07285092 0.07099188 0.06918027 0.06741488 0.06569452 0.06401805 0.06238435 0.06079233 0.05924093 0.057729106 0.05625586 0.054820202 0.053421173 0.052057844 0.050729297

</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="3.25" PeakHeight="254.764" Num="5" zHalfNm="238.74" Error="0.8">
-40.991 -0.481 -0.037 0.161 -0.007
</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="6514.47" A="-1.2790861E11" B="3.9477964E7" C="-3046.014" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6514.47" EndDistance="6548.939" A="0.0" B="327.6285" C="-0.01026171" Error="0.00585"/>
<QuasiParabolic ID="3" StartDistance="6548.939" EndDistance="6551.0" A="-1.27230214E12" B="3.88373472E8" C="-29637.951" Error="0.0355"/>
<QuasiParabolic ID="4" StartDistance="6551.0" EndDistance="6575.0" A="7.4191069E10" B="-2.2706742E7" C="1737.4276" Error="0.0376"/>
<QuasiParabolic ID="5" StartDistance="6575.0" EndDistance="6582.0" A="-1.0393124E11" B="3.1474948E7" C="-2382.853" Error="0.0053"/>
<QuasiParabolic ID="6" StartDistance="6582.0" EndDistance="6589.0" A="9.430362E12" B="-2.86560589E9" C="217693.17" Error="0.0386"/>
<QuasiParabolic ID="7" StartDistance="6589.0" EndDistance="6593.0" A="9.6268557E12" B="-2.92524877E9" C="222219.12" Error="0.00959"/>
<QuasiParabolic ID="8" StartDistance="6593.0" EndDistance="6614.0" A="1.95105495E13" B="-5.9234872E9" C="449599.56" Error="0.0385"/>
<QuasiParabolic ID="9" StartDistance="6614.0" EndDistance="6624.764" A="-4.826644E13" B="1.457152E10" C="-1099766.0" Error="0.0107"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="103.409" Depth="0.154"/>
<TopsideChapman PeakHeight="254.764" PeakDensity="131048.39" PeakScaleHeight="12.087" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
