<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 08:00:00.000"
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: 85% PACIFIC flags: 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" >
2026.04.07 (097) 08:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609704070800001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.639" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.827" 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="3.275" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.825" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.990" 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="246.164" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.102" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.711" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.708" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.723" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.314" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.180" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.320" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="23">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 237.500 237.500 240.000 242.500 242.500 245.000 250.000 253.333 256.667 260.000 262.500 264.525 266.819 269.440 272.464 275.990 280.157 285.155 291.260 298.887 308.686 321.737
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 72 66 66 66 66 69 66 0 0 63 69 72 72 36 45 48 0 0 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 -7.8125 -1.5625 -1.5625 -1.5625 4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="382">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 246.164 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0
</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 0.3538872 0.35347393 0.352762 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.3676427 0.39778987 0.43176186 0.46936557 0.5102031 0.5538399 0.5998629 0.6479647 0.69794184 0.7497121 0.8032425 0.8585505 0.9156955 0.9747698 1.0358578 1.0990598 1.1644384 1.232083 1.3020273 1.3742574 1.4487427 1.5253747 1.6039432 1.6842158 1.7658155 1.8482716 1.931088 2.013663 2.0953684 2.1755655 2.2536232 2.3289905 2.4011755 2.4697516 2.5344033 2.5948696 2.6509936 2.702648 2.7497742 2.7923546 2.830391 2.8639042 2.8929327 2.9175117 2.9376802 2.9534814 2.9649448 2.9720922 2.9749422 2.975 2.974144 2.9709291 2.9654253 2.9577363 2.9479668 2.9362216 2.9226038 2.9072168 2.8901618 2.8715384 2.8514452 2.8299773 2.807228 2.7832885 2.7582467 2.7321875 2.705194 2.6773448 2.648717 2.6193833 2.5894146 2.558878 2.5278378 2.496355 2.4644883 2.432293 2.3998218 2.3671246 2.3342485 2.301238 2.2681353 2.2349799 2.201809 2.1686573 2.1355577 2.1025405 2.0696344 2.0368662 2.0042603 1.9718397 1.9396256 1.9076377 1.875894 1.8444109 1.8132038 1.7822866 1.7516719 1.7213709 1.6913942 1.6617509 1.6324492 1.6034964 1.574899 1.5466624 1.5187916 1.4912905 1.4641623 1.43741 1.4110357 1.3850406 1.359426 1.3341923 1.3093395 1.2848674 1.260775 1.2370613 1.2137249 1.1907637 1.1681759 1.145959 1.1241106 1.1026278 1.0815073 1.0607463 1.0403414 1.0202887 1.000585 0.9812261 0.9622084 0.94352776 0.9251802 0.90716153 0.88946754 0.8720939 0.8550364 0.83829063 0.8218522 0.80571675 0.7898798 0.774337 0.75908387 0.74411595 0.7294289 0.7150182 0.7008796 0.6870086 0.67340094 0.6600522 0.6469581 0.63411444 0.621517 0.6091615 0.5970438 0.5851599 0.5735056 0.5620769 0.5508699 0.5398805 0.529105 0.5185395 0.5081802 0.4980233 0.4880652 0.47830224 0.4687308 0.4593474 0.4501485 0.4411307 0.4322906 0.42362493 0.41513035 0.40680367 0.3986417 0.39064133 0.38279948 0.37511313 0.3675793 0.36019513 0.35295767 0.34586415 0.33891177 0.33209783 0.3254196 0.31887454 0.31245998 0.30617344 0.30001238 0.2939744 0.28805706 0.28225803 0.27657497 0.27100563 0.26554772 0.26019913 0.25495765 0.24982122 0.24478771 0.23985513 0.23502147 0.23028478 0.22564314 0.22109467 0.2166375 0.21226987 0.20798996 0.20379603 0.19968638 0.19565934 0.19171326 0.18784651 0.18405753 0.18034478 0.17670672 0.17314185 0.16964872 0.16622591 0.16287199 0.15958561 0.1563654 0.15321003 0.15011822 0.14708868 0.14412017 0.14121148 0.13836138 0.13556874 0.13283236 0.13015114 0.12752396 0.12494975 0.122427434 0.11995597 0.11753435 0.11516155 0.11283661 0.11055855 0.108326435 0.10613935 0.10399637 0.10189663 0.09983924 0.09782336 0.09584816 0.0939128 0.092016496 0.090158455 0.088337906 0.0865541 0.08480629 0.083093755 0.08141578 0.079771675 0.07816075 0.07658234 0.07503579 0.07352046 0.072035715 0.070580944 0.069155544 0.06775891 0.06639048 0.06504967 0.06373593 0.062448718 0.06118749 0.05995173 0.058740918 0.057554554 0.056392144 0.055253204 0.05413726 0.053043853 0.051972523 0.050922822

</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="2.975" PeakHeight="246.164" Num="5" zHalfNm="226.102" Error="1.429">
-49.631 1.943 -1.481 0.89 -0.385
</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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="-254.9038" C="0.079178154" Error="0.0048"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6565.0" A="5.6099471E10" B="-1.724758E7" C="1325.6826" Error="0.0048"/>
<QuasiParabolic ID="4" StartDistance="6565.0" EndDistance="6566.0" A="-1.6994515E12" B="5.17573728E8" C="-39407.09" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6570.0" A="6.8844687E12" B="-2.09708365E9" C="159698.7" Error="0.0159"/>
<QuasiParabolic ID="6" StartDistance="6570.0" EndDistance="6579.0" A="6.1429467E12" B="-1.87135398E9" C="142519.89" Error="0.0109"/>
<QuasiParabolic ID="7" StartDistance="6579.0" EndDistance="6598.0" A="1.36991253E13" B="-4.1684137E9" C="317095.03" Error="0.0182"/>
<QuasiParabolic ID="8" StartDistance="6598.0" EndDistance="6606.0" A="-1.29532386E13" B="3.91050803E9" C="-295130.03" Error="0.00172"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6616.164" A="-2.39742076E13" B="7.2471624E9" C="-547677.25" Error="9.48E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="246.164" PeakDensity="109809.24" PeakScaleHeight="15.314" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
