<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-25 -145 21:30:00.000"
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="20.0">
<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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: 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" >
2026.05.25 (145) 21:30:00</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">
FF202614505252130001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.020" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.687" 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="4.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="195.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="195.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="248.180" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.494" 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="209.536" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="192.096" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.071" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.855" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.346" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.128" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.680" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.450" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="80">
<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 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 203.750 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 215.000 215.000 216.250 217.500 217.500 217.500 217.500 220.000 222.500 222.500 222.500 225.000 225.000 227.500 230.000 231.667 233.333 235.000 235.000 235.000 236.250 237.500 237.500 238.229 239.154 240.365 242.018 244.410 248.180 255.000 271.086
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 66 0 57 57 57 57 57 54 60 60 57 54 57 48 48 36 36 48 0 0 69 75 72 75 72 69 69 72 66 0 63 69 72 99 93 84 87 90 87 84 84 69 66 72 75 78 75 72 69 66 0 51 54 54 51 54 51 78 78 78 75 0 63 0 0 84 87 75 0 78 75 63 63 69 63 78 78 72 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -9.375 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 -9.375 3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="332">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.69 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 129.83333 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 149.66667 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 209.536 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21503736 0.2592893 0.29607028 0.32682768 0.3530402 0.3756932 0.39545313 0.4127668 0.42794845 0.44123617 0.45279917 0.46276745 0.47124374 0.4783044 0.48400918 0.48840332 0.49152002 0.49338105 0.494 0.4936748 0.49270135 0.49108964 0.48885804 0.48596323 0.4823753 0.47814685 0.4731462 0.46746558 0.4610305 0.4538692 0.44583693 0.43691596 0.427194 0.41637078 0.4045163 0.39151588 0.37715882 0.36136642 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.346 0.3484874 0.35594958 0.36341175 0.37087396 0.37833613 0.3857983 0.3932605 0.40072268 0.4081849 0.41564706 0.42310923 0.43057144 0.4380336 0.44549578 0.452958 0.46042016 0.46788236 0.47534454 0.4828067 0.49026892 0.494 0.52637815 0.5893121 0.6528662 0.7191054 0.7893831 0.8648339 0.9464756 1.035243 1.1319716 1.2373637 1.3517834 1.4753195 1.607505 1.7474365 1.8937938 2.0448484 2.1988554 2.3539927 2.5086858 2.6614952 2.8112428 2.9569888 3.097952 3.2335289 3.3631763 3.4864826 3.6030698 3.7126331 3.814895 3.909603 3.996494 4.07539 4.1460814 4.208399 4.262158 4.3072443 4.3435335 4.370912 4.3893194 4.398699 4.4 4.399467 4.3947816 4.3854623 4.371753 4.353901 4.332149 4.3067408 4.2779155 4.2459087 4.21095 4.1732635 4.1330667 4.09057 4.0459757 3.9994788 3.951266 3.901516 3.8503988 3.7980764 3.7447023 3.6904218 3.6353724 3.5796835 3.5234768 3.4668665 3.4099596 3.3528557 3.2956483 3.238424 3.1812632 3.1242402 3.067424 3.0108778 2.95466 2.8988237 2.843418 2.788487 2.7340708 2.6802063 2.6269257 2.5742586 2.5222306 2.4708655 2.420183 2.3702006 2.3209338 2.2723954 2.224596 2.1775444 2.1312473 2.0857103 2.040937 1.9969295 1.9536886 1.9112142 1.8695046 1.8285575 1.7883693 1.7489359 1.7102522 1.6723121 1.6351098 1.5986377 1.5628887 1.5278548 1.4935274 1.4598981 1.4269576 1.3946967 1.3631058 1.3321751 1.3018948 1.2722547 1.2432448 1.2148546 1.1870738 1.1598922 1.1332992 1.1072845 1.0818378 1.0569485 1.0326066 1.0088016 0.9855233 0.9627616 0.9405065 0.9187481 0.89747643 0.87668186 0.8563547 0.83648545 0.81706476 0.7980833 0.77953196 0.7614018 0.7436839 0.72636956 0.7094501 0.6929173 0.67676264 0.660978 0.6455555 0.6304871 0.61576504 0.60138184 0.58733004 0.57360226 0.56019133 0.54709023 0.53429204 0.5217901 0.5095776 0.49764815 0.4859954 0.47461307 0.46349508 0.4526354 0.44202822 0.43166777 0.4215485 0.4116648 0.40201142 0.392583 0.38337445 0.3743807 0.36559686 0.35701805 0.34863958 0.34045684 0.33246535 0.32466066 0.31703845 0.3095945 0.30232477 0.2952251 0.28829166 0.28152052 0.27490795 0.26845026 0.26214385 0.25598523 0.24997094 0.24409762 0.23836198 0.23276085 0.22729106 0.22194956 0.21673337 0.21163954 0.20666523 0.20180766 0.19706409 0.19243185 0.18790835 0.18349105 0.17917745 0.17496514 0.17085175 0.16683495 0.1629125 0.15908217 0.15534182 0.15168934 0.14812265 0.14463976 0.1412387 0.13791756 0.13467446 0.13150758 0.12841511 0.12539531 0.122446485 0.11956697 0.11675513 0.11400939 0.111328185 0.108710006 0.10615338 0.10365684 0.101219006 0.09883848 0.09651392 0.09424401 0.09202746 0.08986304 0.0877495 0.08568566 0.083670355 0.081702426 0.07978078 0.077904314 0.07607197 0.07428272 0.072535545 0.07082946 0.06916349 0.0675367 0.065948166 0.06439699 0.0628823 0.061403222 0.059958935 0.058548614 0.05717146 0.055826697 0.054513562 0.05323131 0.051979214 0.050756566

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.494" PeakHeight="110.0" Num="3" Error="0.0">
-22.204 4.281 -0.387
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.494" EndFrequency="4.4" PeakHeight="209.536" Num="5" zHalfNm="192.096" Error="0.796">
-41.895 2.86 -1.348 0.167 0.18
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="17" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.001" EndDistance="6480.001" A="-1.06924173E12" B="3.30012896E8" C="-25463.713" Error="0.0106"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6499.833" A="-5.6006325E11" B="1.72859024E8" C="-13337.644" Error="0.00115"/>
<QuasiParabolic ID="2" StartDistance="6499.833" EndDistance="6519.667" A="0.0" B="1412.8892" C="-0.09751939" Error="0.00437"/>
<QuasiParabolic ID="3" StartDistance="6519.667" EndDistance="6521.0" A="-7.2324334E12" B="2.21818496E9" C="-170079.02" Error="0.00788"/>
<QuasiParabolic ID="4" StartDistance="6521.0" EndDistance="6522.0" A="9.1701945E12" B="-2.81252429E9" C="215652.4" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6522.0" EndDistance="6523.0" A="-8.9684831E12" B="2.74978099E9" C="-210773.94" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6523.0" EndDistance="6524.0" A="9.1759711E12" B="-2.81344282E9" C="215657.42" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6524.0" EndDistance="6525.0" A="-8.0800074E12" B="2.4765568E9" C="-189768.64" Error="2.03E-10"/>
<QuasiParabolic ID="8" StartDistance="6525.0" EndDistance="6527.0" A="2.63561386E12" B="-8.0792493E8" C="61915.773" Error="0.0138"/>
<QuasiParabolic ID="9" StartDistance="6527.0" EndDistance="6537.0" A="-1.45772151E11" B="4.4345964E7" C="-3372.3325" Error="0.0127"/>
<QuasiParabolic ID="10" StartDistance="6537.0" EndDistance="6538.0" A="-2.95782842E12" B="9.046967E8" C="-69178.57" Error="6.44E-11"/>
<QuasiParabolic ID="11" StartDistance="6538.0" EndDistance="6542.0" A="2.10744713E13" B="-6.4468787E9" C="493040.4" Error="0.0171"/>
<QuasiParabolic ID="12" StartDistance="6542.0" EndDistance="6544.0" A="4.6468133E12" B="-1.42466586E9" C="109196.57" Error="0.0106"/>
<QuasiParabolic ID="13" StartDistance="6544.0" EndDistance="6548.0" A="2.66437772E13" B="-8.1474545E9" C="622857.06" Error="0.00483"/>
<QuasiParabolic ID="14" StartDistance="6548.0" EndDistance="6559.0" A="5.1754591E13" B="-1.58172201E10" C="1208514.2" Error="0.00952"/>
<QuasiParabolic ID="15" StartDistance="6559.0" EndDistance="6569.0" A="-4.25768596E12" B="1.26229696E9" C="-93476.75" Error="0.0117"/>
<QuasiParabolic ID="16" StartDistance="6569.0" EndDistance="6579.536" A="-6.9736822E13" B="2.11980964E10" C="-1610891.9" Error="0.00452"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="59.5" Depth="0.148"/>
<TopsideChapman PeakHeight="209.536" PeakDensity="240198.52" PeakScaleHeight="13.128" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
