<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 23:25:00.000"
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" >
2026.05.19 (139) 23:25:00</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">
FF202613905192325001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.694" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.005" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.625" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.818" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.818" 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="3.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.850" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.850" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="247.041" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.095" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.169" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.423" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.644" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.270" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.570" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.818 251.962 253.221 254.610 256.152 257.874 259.808 261.997 264.494 267.500 270.000 275.000 280.000 285.000 292.500 302.500 313.537
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 75 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 1.5625 -1.5625 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="327">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.85767 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.71533 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 208.573 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 247.041 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0
</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 0.3522771 0.35127333 0.35005456 0.34855255 0.34692052 0.34501943 0.34285972 0.34045315 0.3378128 0.33495292 0.3318229 0.32844365 0.324712 0.32078433 0.3165085 0.31192896 0.30703753 0.3018372 0.29621828 0.2902516 0.28386173 0.27710527 0.26983902 0.26206398 0.25373018 0.24483638 0.23524734 0.22488655 0.21375565 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 0.2013342 0.20602109 0.21070796 0.21539484 0.22008173 0.22476861 0.22945549 0.23414238 0.23882926 0.24351613 0.24820302 0.2528899 0.2575768 0.26226366 0.26695055 0.27163744 0.2763243 0.2810112 0.2856981 0.29038495 0.29507184 0.2997587 0.3044456 0.3091325 0.31381935 0.31850624 0.32319313 0.32788 0.3325669 0.33725378 0.34194064 0.34662753 0.35131443 0.354 0.3737085 0.42081207 0.46984237 0.5213637 0.5758024 0.63350064 0.694755 0.75980973 0.8288793 0.9021103 0.97961974 1.0614297 1.1475387 1.2378145 1.332105 1.4301127 1.5314983 1.6357843 1.742461 1.8508981 1.9604166 2.0702956 2.179741 2.287949 2.394069 2.497299 2.5967846 2.6917129 2.7813306 2.8648868 2.9416907 3.0110905 3.0725093 3.125451 3.1694505 3.20416 3.229279 3.2445972 3.2499948 3.25 3.247743 3.2407615 3.2293363 3.2137535 3.1942987 3.1712546 3.144899 3.1155026 3.0833294 3.0486343 3.0116615 2.9726462 2.9318123 2.8893723 2.8455276 2.800469 2.7543745 2.7074122 2.6597393 2.6115017 2.5628355 2.5138664 2.4647112 2.415477 2.366262 2.3171568 2.2682436 2.219597 2.1712854 2.1233695 2.0759048 2.0289404 1.9825205 1.9366834 1.8914636 1.8468909 1.802991 1.759786 1.7172945 1.6755319 1.6345106 1.5942408 1.5547296 1.5159824 1.4780022 1.4407904 1.4043466 1.3686689 1.3337542 1.2995976 1.2661939 1.2335364 1.2016175 1.1704291 1.1399622 1.1102073 1.0811545 1.0527931 1.0251124 0.99810106 0.9717477 0.9460407 0.9209681 0.896518 0.87267834 0.849437 0.82678187 0.80470073 0.78318155 0.7622122 0.74178076 0.72187525 0.70248395 0.6835951 0.6651973 0.647279 0.62982905 0.61283636 0.59628993 0.58017904 0.5644932 0.5492219 0.53435504 0.51988256 0.50579464 0.49208173 0.4787343 0.46574315 0.45309925 0.4407937 0.42881787 0.41716325 0.4058216 0.3947848 0.38404492 0.37359425 0.36342523 0.3535305 0.34390286 0.33453527 0.3254209 0.31655303 0.30792516 0.29953092 0.2913641 0.2834187 0.2756887 0.2681685 0.2608524 0.25373498 0.24681091 0.24007499 0.23352219 0.2271476 0.22094639 0.2149139 0.20904562 0.20333709 0.197784 0.19238217 0.1871275 0.18201602 0.17704383 0.17220719 0.1675024 0.16292593 0.15847425 0.154144 0.1499319 0.1458347 0.14184931 0.13797268 0.13420187 0.13053398 0.12696622 0.12349588 0.12012029 0.11683687 0.113643125 0.1105366 0.107514925 0.10457579 0.10171694 0.09893619 0.096231416 0.093600534 0.091041535 0.08855246 0.086131394 0.0837765 0.08148595 0.079258 0.07709094 0.07498311 0.07293289 0.07093871 0.06899903 0.06711237 0.065277286 0.063492365 0.06175624 0.06006757 0.058425065 0.056827463 0.05527354 0.053762097 0.052291974 0.050862048

</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="3.25" PeakHeight="247.041" Num="5" zHalfNm="232.095" Error="0.932">
-38.171 -0.39 -0.091 0.158 0.026
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6512.858" A="-1.40696601E11" B="4.3424876E7" C="-3350.5596" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6512.858" EndDistance="6545.715" A="0.0" B="484.7552" C="-0.034399472" Error="0.00856"/>
<QuasiParabolic ID="3" StartDistance="6545.715" EndDistance="6575.0" A="3.5111703E10" B="-1.0813146E7" C="832.5036" Error="0.00856"/>
<QuasiParabolic ID="4" StartDistance="6575.0" EndDistance="6578.0" A="1.33715739E11" B="-4.0806768E7" C="3113.3875" Error="2.62E-4"/>
<QuasiParabolic ID="5" StartDistance="6578.0" EndDistance="6580.0" A="2.17723657E13" B="-6.619904E9" C="503196.78" Error="0.00668"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6581.0" A="-8.6977586E12" B="2.64153216E9" C="-200559.77" Error="1.64E-10"/>
<QuasiParabolic ID="7" StartDistance="6581.0" EndDistance="6588.0" A="1.17957429E13" B="-3.58654899E9" C="272626.78" Error="0.00918"/>
<QuasiParabolic ID="8" StartDistance="6588.0" EndDistance="6597.0" A="2.51679757E13" B="-7.6461215E9" C="580730.4" Error="0.00911"/>
<QuasiParabolic ID="9" StartDistance="6597.0" EndDistance="6604.0" A="2.35717117E13" B="-7.1621857E9" C="544051.9" Error="0.00777"/>
<QuasiParabolic ID="10" StartDistance="6604.0" EndDistance="6611.0" A="-2.23494097E13" B="6.7448771E9" C="-508875.38" Error="0.00262"/>
<QuasiParabolic ID="11" StartDistance="6611.0" EndDistance="6617.041" A="-5.9387876E13" B="1.79499786E10" C="-1356334.4" Error="0.0011"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.573" Depth="0.154"/>
<TopsideChapman PeakHeight="247.041" PeakDensity="131048.39" PeakScaleHeight="11.27" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
