<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-19 -078 04:35:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 40% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.19 (078) 04:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607803190435001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="7.950" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.671" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.188" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="7.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.400" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="270.942" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="257.941" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.926" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="20.312" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.682" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.320" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.120" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="184">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875 6.9 6.925 6.95 6.975 7.0 7.025 7.05 7.075 7.1 7.125 7.15 7.175 7.2 7.225 7.25 7.275 7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675 7.7 7.725 7.75 7.775 7.8 7.825 7.85 7.875 7.9 7.925 7.95
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
295.000 293.750 292.500 287.500 286.324 285.147 283.971 282.794 281.618 280.441 279.265 278.088 276.912 275.735 274.559 273.382 272.206 271.029 269.853 268.676 267.500 267.500 267.500 267.500 267.500 268.333 269.167 270.000 271.250 272.500 271.250 270.000 268.750 267.500 252.500 250.000 262.500 265.000 265.000 265.000 264.167 263.333 262.500 257.500 260.000 262.500 262.500 262.500 262.500 263.750 265.000 265.625 266.250 266.875 267.500 277.500 270.000 265.000 260.000 270.000 270.000 270.000 270.000 270.000 268.750 267.500 267.500 267.500 267.500 270.000 270.000 270.000 270.000 270.000 270.000 270.000 270.000 270.139 270.278 270.417 270.556 270.694 270.833 270.972 271.111 271.250 271.389 271.528 271.667 271.806 271.944 272.083 272.222 272.361 272.500 270.000 267.500 265.000 270.000 268.750 267.500 267.500 267.500 270.833 274.167 277.500 277.500 277.500 277.500 277.500 277.500 270.000 270.000 273.750 277.500 285.000 275.000 280.000 285.000 280.000 285.000 285.000 286.250 287.500 290.000 292.500 293.750 295.000 296.250 297.500 298.750 300.000 298.750 297.500 297.500 297.500 296.250 295.000 297.500 300.000 295.000 297.500 299.167 300.833 302.500 301.765 301.029 300.294 299.559 298.824 298.088 297.353 296.618 295.882 295.147 294.412 293.676 292.941 292.206 291.471 290.735 290.000 290.000 290.000 289.167 288.333 287.500 286.667 285.833 285.000 286.000 287.000 288.000 289.000 290.000 291.000 292.000 293.000 294.000 295.000 295.000 295.110 295.400 298.270
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 93 0 0 93 0 0 0 0 69 66 0 72 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 102 0 0 66 63 0 63 66 0 0 63 0 105 105 102 0 99 102 0 0 60 66 66 0 66 0 66 69 66 66 0 0 102 96 60 0 99 102 99 99 0 0 0 0 99 0 60 63 63 60 0 60 96 0 0 96 0 99 99 99 0 96 96 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 96 93 0 0 0 0 0 0 0 0 0 0 0 96 0 0 0 84 57 60 0 99 96 99 96 96 96 0 96 0 0 0 93 96 60 0 0 0 0 99 60 60 0 57
</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 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 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 -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 -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 -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="370">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 270.942 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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</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="7.95" PeakHeight="270.942" Num="5" zHalfNm="257.941" Error="1.354">
-53.429 -18.326 12.541 -4.233 0.505
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="15" 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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="1544.9655" C="-0.19719717" Error="0.0289"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6548.0" A="-1.92113829E12" B="5.8674976E8" C="-44800.902" Error="0.0799"/>
<QuasiParabolic ID="4" StartDistance="6548.0" EndDistance="6572.0" A="1.19492633E11" B="-3.6533964E7" C="2792.5415" Error="0.0746"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6573.0" A="-1.56307816E12" B="4.75508256E8" C="-36163.805" Error="6.86E-11"/>
<QuasiParabolic ID="6" StartDistance="6573.0" EndDistance="6574.0" A="1.64837707E12" B="-5.01657472E8" C="38167.984" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6574.0" EndDistance="6575.0" A="-1.56407615E12" B="4.75663264E8" C="-36164.29" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6575.0" EndDistance="6576.0" A="1.64944491E12" B="-5.01833664E8" C="38170.08" Error="0.0"/>
<QuasiParabolic ID="9" StartDistance="6576.0" EndDistance="6577.0" A="-1.56496311E12" B="4.75784384E8" C="-36162.19" Error="0.0"/>
<QuasiParabolic ID="10" StartDistance="6577.0" EndDistance="6579.0" A="1.23437696E13" B="-3.75372237E9" C="285375.5" Error="0.0"/>
<QuasiParabolic ID="11" StartDistance="6579.0" EndDistance="6604.0" A="1.76052639E13" B="-5.3532037E9" C="406935.1" Error="0.0615"/>
<QuasiParabolic ID="12" StartDistance="6604.0" EndDistance="6634.0" A="5.0300052E13" B="-1.52547144E10" C="1156595.1" Error="0.0718"/>
<QuasiParabolic ID="13" StartDistance="6634.0" EndDistance="6639.0" A="3.3194554E14" B="-1.0016442E11" C="7556181.0" Error="0.011"/>
<QuasiParabolic ID="14" StartDistance="6639.0" EndDistance="6640.942" A="-1.88164624E15" B="5.6668049E11" C="-4.2665608E7" Error="0.0026"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="270.942" PeakDensity="784150.1" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
