<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 01:30:00.000"
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="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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.11 (131) 01:30:00</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">
FF202613105110130001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.843" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.068" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="3.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="252.276" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="236.274" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="220.216" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.399" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.999" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.757" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.375" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.620" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.820" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="20">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 235.000 235.617 236.301 237.065 237.923 238.893 240.000 241.274 242.755 244.501 246.587 249.124 252.276 256.299 261.609 268.944 279.734 297.171 330.135
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 60 66 63 78 78 90 90 93 93 93 90 105 102 102 102 102 99 93 87
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="335">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 236.274 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0
</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 0.35347393 0.352762 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.37094134 0.41083476 0.45922807 0.51546466 0.5777562 0.64431167 0.713986 0.7863251 0.8613422 0.93928075 1.0205712 1.1056753 1.1951574 1.2895267 1.3893567 1.49508 1.6070452 1.7252605 1.8493787 1.9784473 2.11085 2.2442973 2.3761337 2.5037107 2.6247187 2.7374809 2.8409793 2.9347749 3.0188527 3.0934467 3.1589148 3.2156987 3.264215 3.3048453 3.337938 3.3637834 3.382599 3.3945527 3.3997483 3.4 3.3988712 3.3937304 3.3846378 3.3718195 3.3555017 3.3359091 3.3132644 3.287786 3.2596874 3.2291768 3.1964557 3.161719 3.1251543 3.0869408 3.0472505 3.006247 2.964086 2.9209151 2.8768733 2.832092 2.7866948 2.7407978 2.6945088 2.6479297 2.6011543 2.5542705 2.5073593 2.4604957 2.4137487 2.367182 2.3208537 2.2748175 2.2291214 2.1838098 2.1389225 2.094495 2.0505598 2.0071456 1.9642777 1.9219787 1.8802679 1.8391622 1.7986764 1.7588223 1.7196103 1.6810485 1.6431433 1.6058993 1.5693197 1.5334064 1.4981599 1.4635794 1.4296633 1.3964089 1.3638128 1.3318703 1.3005766 1.2699258 1.2399117 1.2105273 1.1817656 1.1536187 1.1260785 1.0991368 1.072785 1.0470141 1.0218152 0.9971789 0.97309613 0.94955724 0.92655283 0.90407336 0.8821092 0.8606508 0.8396885 0.81921273 0.79921407 0.77968293 0.76061 0.74198586 0.72380126 0.70604706 0.6887142 0.6717937 0.6552767 0.63915455 0.62341857 0.6080603 0.59307134 0.5784436 0.5641688 0.55023915 0.5366467 0.5233839 0.5104432 0.4978171 0.4854984 0.47347996 0.4617548 0.45031607 0.43915707 0.4282712 0.41765207 0.40729335 0.39718884 0.38733253 0.37771848 0.36834094 0.35919422 0.35027277 0.34157124 0.33308426 0.3248067 0.31673348 0.30885965 0.3011804 0.293691 0.28638685 0.27926338 0.27231628 0.26554117 0.25893387 0.2524903 0.24620645 0.24007837 0.2341023 0.22827446 0.22259124 0.21704906 0.21164447 0.2063741 0.2012346 0.19622278 0.19133548 0.18656963 0.18192223 0.17739037 0.17297116 0.16866185 0.1644597 0.1603621 0.1563664 0.15247011 0.14867078 0.14496599 0.1413534 0.13783072 0.13439572 0.13104624 0.12778014 0.124595374 0.1214899 0.11846175 0.11550902 0.11262982 0.10982234 0.10708479 0.104415424 0.10181255 0.09927452 0.09679973 0.09438659 0.09203358 0.08973919 0.08750197 0.08532051 0.0831934 0.0811193 0.07909689 0.07712488 0.07520202 0.07332708 0.07149887 0.06971623 0.067978024 0.06628314 0.0646305 0.06301906 0.061447784 0.05991568 0.058421765 0.056965094 0.055544734 0.05415978 0.052809354 0.051492594 0.05020866

</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="3.4" PeakHeight="236.274" Num="5" zHalfNm="220.216" Error="1.324">
-40.463 3.205 -2.313 1.358 -0.561
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="1122.8452" C="-0.13248472" Error="0.0188"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6564.0" A="3.5330179E10" B="-1.0908628E7" C="842.00964" Error="0.0188"/>
<QuasiParabolic ID="4" StartDistance="6564.0" EndDistance="6567.0" A="2.19715224E11" B="-6.708932E7" C="5121.4653" Error="6.93E-4"/>
<QuasiParabolic ID="5" StartDistance="6567.0" EndDistance="6569.0" A="1.62706217E13" B="-4.9554422E9" C="377312.2" Error="0.0082"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6576.0" A="1.15691865E13" B="-3.52404147E9" C="268361.0" Error="0.0173"/>
<QuasiParabolic ID="7" StartDistance="6576.0" EndDistance="6579.0" A="1.90917651E13" B="-5.8119301E9" C="442318.47" Error="0.00606"/>
<QuasiParabolic ID="8" StartDistance="6579.0" EndDistance="6591.0" A="3.6741486E13" B="-1.11774024E10" C="850091.1" Error="0.0199"/>
<QuasiParabolic ID="9" StartDistance="6591.0" EndDistance="6595.0" A="-3.07660042E13" B="9.3073459E9" C="-703902.9" Error="0.00149"/>
<QuasiParabolic ID="10" StartDistance="6595.0" EndDistance="6606.274" A="-4.3965521E13" B="1.33102316E10" C="-1007381.7" Error="5.1E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="236.274" PeakDensity="143424.31" PeakScaleHeight="12.375" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
