<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-15 -135 03:15:00.000"
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" >
2026.05.15 (135) 03:15:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" 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">
FF202613505150315001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.802" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.311" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.675" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.675" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.362" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.362" 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="2.875" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="262.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.675" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.675" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="241.342" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.745" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.766" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="19.444" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.504" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.230" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.210" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="13">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
250.362 251.119 252.004 253.051 254.311 255.855 257.793 260.000 262.500 267.500 275.000 287.500 313.107
</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
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 10.9375 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="308">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.751 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.502 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 208.253 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 241.342 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0
</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 0.35354906 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3449482 0.34278953 0.34038416 0.3377451 0.33481935 0.33169246 0.32825223 0.32452616 0.3205435 0.31621736 0.31164926 0.30671552 0.30142665 0.29583037 0.28979418 0.28334898 0.27655247 0.26918876 0.26138476 0.25296235 0.24393702 0.2342829 0.22380385 0.21259929 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 0.20234168 0.20704381 0.21174596 0.21644811 0.22115025 0.2258524 0.23055455 0.2352567 0.23995884 0.24466099 0.24936314 0.25406528 0.25876743 0.26346958 0.26817173 0.27287388 0.277576 0.28227815 0.2869803 0.29168245 0.2963846 0.30108675 0.3057889 0.31049103 0.31519318 0.31989533 0.32459748 0.32929963 0.33400178 0.33870393 0.34340605 0.3481082 0.35281035 0.354 0.3878943 0.43888757 0.49585104 0.558174 0.6254023 0.69724077 0.773582 0.85443544 0.93987477 1.0299766 1.1248298 1.2244017 1.3285519 1.4370071 1.5492071 1.6644697 1.7817328 1.8998468 2.0173597 2.1328125 2.244704 2.3516252 2.4523187 2.5457594 2.631089 2.7076628 2.7750356 2.8328867 2.8810096 2.919279 2.9476225 2.96601 2.9744163 2.975 2.9738915 2.9681044 2.9576468 2.942835 2.9239852 2.9014094 2.8754148 2.8463001 2.8143554 2.7798595 2.7430804 2.7042725 2.663679 2.6215281 2.5780363 2.5334058 2.487826 2.4414735 2.394512 2.3470929 2.2993565 2.2514312 2.2034347 2.1554751 2.1076498 2.0600479 2.0127492 1.9658262 1.9193432 1.8733578 1.8279207 1.7830769 1.7388655 1.6953205 1.652471 1.6103415 1.5689532 1.5283225 1.488463 1.4493853 1.4110969 1.3736029 1.3369058 1.3010064 1.2659035 1.2315938 1.1980731 1.1653355 1.1333741 1.1021805 1.071746 1.0420605 1.0131136 0.9848943 0.95739067 0.9305908 0.9044822 0.879052 0.8542874 0.83017504 0.80670184 0.78385425 0.7616189 0.7399824 0.71893144 0.6984525 0.6785324 0.65915805 0.6403163 0.6219943 0.6041794 0.5868589 0.5700206 0.55365217 0.5377416 0.52227724 0.50724745 0.49264085 0.47844636 0.4646531 0.45125034 0.43822765 0.4255748 0.41328183 0.40133893 0.3897366 0.37846544 0.36751643 0.35688066 0.34654945 0.33651438 0.3267672 0.3172999 0.3081046 0.29917374 0.29049987 0.2820757 0.27389428 0.26594868 0.25823227 0.25073853 0.24346112 0.23639393 0.22953095 0.22286636 0.2163945 0.21010986 0.2040071 0.19808099 0.19232647 0.18673864 0.1813127 0.17604399 0.17092799 0.16596033 0.1611367 0.156453 0.15190515 0.14748926 0.14320152 0.1390382 0.13499576 0.13107066 0.12725954 0.12355908 0.1199661 0.11647747 0.11309017 0.10980129 0.10660796 0.103507414 0.10049696 0.097574 0.09473599 0.09198046 0.08930502 0.08670736 0.084185205 0.08173638 0.07935875 0.07705024 0.07480886 0.07263264 0.07051971 0.06846822 0.06647639 0.06454248 0.06266481 0.06084175 0.059071712 0.057353154 0.05568458 0.05406454 0.052491616 0.050964445

</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="241.342" Num="5" zHalfNm="227.745" Error="0.522">
-33.576 0.896 -0.642 0.367 -0.134
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6512.751" A="-1.41613941E11" B="4.3708008E7" C="-3372.4062" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.751" EndDistance="6545.502" A="0.0" B="-1498.9703" C="0.27018964" Error="0.0295"/>
<QuasiParabolic ID="3" StartDistance="6545.502" EndDistance="6576.0" A="5.9916394E10" B="-1.8373062E7" C="1408.5253" Error="0.0295"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6578.0" A="2.72237383E12" B="-8.2812288E8" C="62977.094" Error="0.0112"/>
<QuasiParabolic ID="5" StartDistance="6578.0" EndDistance="6587.0" A="1.56665003E13" B="-4.7637043E9" C="362124.34" Error="0.0531"/>
<QuasiParabolic ID="6" StartDistance="6587.0" EndDistance="6601.0" A="2.73209035E13" B="-8.3023114E9" C="630729.75" Error="0.0352"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6611.342" A="-5.1701185E13" B="1.5640148E10" C="-1182818.2" Error="0.0111"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.253" Depth="0.154"/>
<TopsideChapman PeakHeight="241.342" PeakDensity="109809.24" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
