<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 06:10:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 20% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.21 (052) 06:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.16" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202605202210610001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="6.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.358" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.087" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="6.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="213.325" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.675" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.675" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="203.743" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="194.707" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.775" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="13.380" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.226" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="14.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.590" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="138">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 209.375 208.750 208.125 207.500 206.667 205.833 205.000 205.000 205.000 205.000 205.000 203.750 202.500 201.667 200.833 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 203.750 205.000 205.000 205.000 205.000 205.000 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 207.500 207.500 206.250 205.000 205.000 205.000 210.000 207.500 210.000 210.000 210.000 207.500 207.500 210.000 210.000 210.000 207.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 206.042 207.083 208.125 209.167 210.208 211.250 212.292 213.333 214.375 215.417 216.458 217.500 217.500 212.500 211.250 210.000 210.000 210.000 210.000 208.750 207.500 207.500 207.500 210.000 210.000 210.000 210.000 212.500 215.000 215.000 213.333 211.667 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.203 210.449 210.753 211.138 211.642 212.330 213.325 214.893 217.726 224.396 259.018
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 0 0 0 0 93 0 81 81 72 69 69 69 69 72 0 72 84 84 84 81 81 81 108 108 111 108 108 108 96 96 96 93 93 93 105 105 108 111 96 90 84 81 81 0 84 84 66 69 69 69 93 93 69 69 93 96 96 99 99 87 0 78 105 108 72 0 102 90 78 78 63 66 60 57 0 69 75 69 111 111 108 108 108 108 69 69 0 0 0 54 54 51 0 0 0 0 0 54 0 93 0 0 99 99 96 0 102 105 108 108 108 108 66 63 90 0 0 0 108 108 108 108 111 108 108 108 108 108 108 111 111 111 111 93 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 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="295">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 203.743 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0
</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 0.3537932 0.35311493 0.35197127 0.35037374 0.3483392 0.3457767 0.34277558 0.3392647 0.33529535 0.33075 0.32564294 0.31998846 0.3136597 0.3067674 0.2990953 0.29073656 0.2815179 0.271331 0.26021352 0.24793555 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.2387619 0.24452381 0.2502857 0.2560476 0.26180953 0.26757142 0.27333334 0.27909523 0.28485715 0.29061905 0.29638097 0.30214286 0.30790475 0.31366667 0.31942856 0.32519048 0.33095238 0.3367143 0.3424762 0.34823808 0.354 0.4149569 0.49798825 0.6075818 0.7423804 0.8960232 1.062287 1.237513 1.4201288 1.6096814 1.8062314 2.01005 2.221566 2.4411254 2.6691768 2.9059713 3.1517725 3.4067569 3.6708157 3.9437482 4.2248087 4.5129123 4.806201 5.101965 5.396093 5.682801 5.9541054 6.199801 6.4073234 6.5629888 6.654217 6.675 6.674618 6.6660333 6.6466866 6.6172857 6.578541 6.5311565 6.4758267 6.4132304 6.3440256 6.268849 6.1883116 6.102997 6.01346 5.920228 5.823796 5.7246304 5.623168 5.5198164 5.414954 5.308933 5.2020764 5.094683 4.9870276 4.87936 4.7719083 4.6648803 4.5584636 4.452826 4.34812 4.2444806 4.1420274 4.0408664 3.9410906 3.8427808 3.7460063 3.650827 3.557292 3.4654431 3.3753138 3.2869294 3.20031 3.115469 3.0324144 2.9511495 2.871673 2.79398 2.7180612 2.6439052 2.571497 2.5008194 2.4318533 2.3645768 2.2989671 2.2350001 2.1726496 2.111889 2.0526905 1.9950259 1.9388663 1.8841822 1.830944 1.7791216 1.728685 1.6796042 1.6318489 1.5853893 1.5401953 1.4962376 1.4534867 1.4119136 1.3714895 1.3321861 1.2939755 1.2568301 1.2207229 1.1856272 1.1515169 1.1183665 1.0861505 1.0548445 1.0244243 0.99486613 0.966147 0.93824416 0.9111355 0.8847995 0.85921496 0.83436126 0.81021833 0.7867665 0.76398665 0.74186015 0.7203687 0.69949454 0.6792205 0.6595297 0.64040565 0.6218325 0.60379463 0.5862769 0.5692646 0.5527433 0.5366992 0.5211186 0.50598836 0.49129555 0.47702774 0.46317276 0.4497188 0.43665436 0.42396832 0.41164973 0.3996881 0.38807318 0.37679493 0.3658437 0.35521013 0.34488496 0.33485934 0.32512465 0.3156725 0.30649468 0.29758328 0.28893062 0.28052923 0.2723718 0.26445132 0.2567609 0.24929386 0.24204378 0.23500434 0.22816946 0.2215332 0.21508978 0.20883365 0.20275936 0.19686162 0.19113535 0.18557553 0.18017735 0.17493612 0.16984726 0.16490638 0.16010916 0.15545145 0.15092917 0.1465384 0.14227533 0.13813625 0.13411753 0.1302157 0.12642735 0.12274918 0.119178005 0.1157107 0.11234424 0.10907571 0.105902255 0.10282112 0.0998296 0.09692511 0.09410511 0.09136715 0.08870883 0.08612785 0.08362196 0.08118896 0.07882674 0.07653325 0.07430648 0.0721445 0.07004541 0.068007395 0.06602867 0.064107515 0.062242255 0.06043126 0.058672953 0.056965806 0.055308327 0.053699072 0.052136637 0.05061966

</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="6.675" PeakHeight="203.743" Num="5" zHalfNm="194.707" Error="0.85">
-28.916 -3.273 2.265 -0.716 -0.103
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="63.0" Depth="0.121"/>
<TopsideChapman PeakHeight="203.743" PeakDensity="552799.3" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
