<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-29 -119 01:45:00.000"
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" >
2026.04.29 (119) 01:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611904290145001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.726" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.437" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="225.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.928" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.781" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.981" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.411" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.155" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.658" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.640" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
225.000 225.000 227.500 227.500 227.500 230.000 230.000 230.000 232.500 235.000 235.000 235.000 235.000 237.500 237.500 240.000 240.000 242.500 245.000 247.500 247.500 250.000 250.000 252.500 252.500 257.500 257.500 260.000 265.000 267.500 272.500 277.500 285.000 290.000 297.500 307.788 320.954
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 93 96 96 96 87 87 108 99 84 87 87 87 99 99 87 87 108 102 87 81 87 84 84 81 78 78 75 75 72 72 54 54 78 0 78
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="377">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.83333 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 163.66667 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 190.5 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.928 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0
</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 0.353812 0.35332385 0.35253775 0.3513833 0.34986797 0.34800196 0.34587008 0.3433416 0.34043694 0.33717975 0.3335292 0.3294542 0.3250611 0.3201454 0.31483623 0.30908883 0.30277678 0.29597685 0.28861925 0.2806141 0.2719544 0.2625736 0.25233817 0.24117032 0.22898808 0.2156547 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 0.20191304 0.20765217 0.2133913 0.21913044 0.22486956 0.2306087 0.23634782 0.24208696 0.24782608 0.25356522 0.25930434 0.26504347 0.27078262 0.27652174 0.28226086 0.288 0.29373914 0.29947826 0.3052174 0.3109565 0.31669566 0.32243478 0.3281739 0.33391306 0.33965218 0.3453913 0.35113043 0.354 0.37173635 0.41003728 0.45178565 0.4966286 0.54428 0.59458184 0.64748394 0.7030234 0.7613097 0.82252777 0.88689727 0.95466256 1.0261158 1.1015806 1.1813837 1.265847 1.3553256 1.4500979 1.5503708 1.6562873 1.7677714 1.8845538 2.006041 2.131378 2.259324 2.3884578 2.5170922 2.64365 2.7666423 2.884757 2.9970236 3.1027784 3.2015686 3.2931666 3.3775082 3.4546492 3.5246906 3.587829 3.644224 3.6940653 3.7375376 3.7748063 3.806025 3.8313138 3.8507864 3.864519 3.872574 3.875 3.874991 3.873007 3.8676634 3.859114 3.8475134 3.8330173 3.8157804 3.7959561 3.773696 3.7491498 3.7224636 3.6937811 3.6632419 3.6309814 3.5971317 3.5618198 3.5251687 3.4872966 3.448317 3.408339 3.3674667 3.3257992 3.2834315 3.2404537 3.1969519 3.1530063 3.1086946 3.0640888 3.0192575 2.9742653 2.9291723 2.8840353 2.838908 2.7938395 2.7488763 2.7040615 2.6594353 2.615035 2.5708947 2.5270464 2.483519 2.4403396 2.3975327 2.3551204 2.3131232 2.2715595 2.2304459 2.1897972 2.1496265 2.1099458 2.0707653 2.0320938 1.9939392 1.9563078 1.9192051 1.8826354 1.846602 1.8111076 1.7761538 1.7417414 1.7078707 1.6745411 1.6417515 1.6095003 1.5777853 1.5466034 1.515952 1.4858273 1.4562254 1.427142 1.3985726 1.3705124 1.3429561 1.3158984 1.289334 1.263257 1.2376617 1.2125419 1.1878916 1.1637044 1.1399742 1.1166945 1.0938588 1.0714606 1.0494936 1.0279508 1.0068259 0.9861124 0.96580356 0.9458929 0.9263737 0.90723974 0.88848424 0.8701009 0.8520833 0.83442503 0.81711984 0.8001614 0.7835436 0.76726025 0.75130534 0.7356728 0.7203567 0.70535123 0.6906506 0.676249 0.66214097 0.64832085 0.63478315 0.62152255 0.6085336 0.5958112 0.5833501 0.5711453 0.5591917 0.54748446 0.5360187 0.5247897 0.51379275 0.50302327 0.49247673 0.48214868 0.47203478 0.46213073 0.45243233 0.4429354 0.43363595 0.42452994 0.41561347 0.40688273 0.39833388 0.3899633 0.3817673 0.37374234 0.36588493 0.35819164 0.3506591 0.34328404 0.33606318 0.3289934 0.32207155 0.31529462 0.3086596 0.30216357 0.29580364 0.289577 0.2834809 0.27751267 0.2716696 0.26594913 0.26034868 0.2548658 0.24949802 0.24424295 0.23909827 0.23406163 0.22913082 0.22430362 0.21957786 0.21495144 0.21042229 0.20598836 0.20164767 0.19739826 0.19323824 0.18916574 0.18517892 0.18127598 0.17745517 0.17371477 0.1700531 0.1664685 0.16295937 0.15952411 0.15616117 0.15286906 0.14964627 0.14649133 0.14340286 0.14037943 0.13741969 0.13452229 0.13168593 0.12890932 0.1261912 0.123530366 0.12092558 0.118375696 0.115879536 0.11343598 0.11104392 0.10870227 0.106409974 0.10416599 0.1019693 0.09981892 0.09771386 0.09565318 0.093635924 0.09166121 0.08972811 0.08783577 0.08598332 0.084169924 0.082394764 0.08065703 0.07895593 0.0772907 0.07566058 0.07406483 0.072502725 0.07097356 0.06947664 0.068011284 0.06657683 0.06517262 0.063798025 0.062452413 0.06113518 0.059845723 0.058583457 0.05734781 0.056138225 0.05495415 0.053795043 0.05266038 0.051549647 0.05046234

</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="3.875" PeakHeight="237.928" Num="5" zHalfNm="218.781" Error="1.604">
-49.205 3.498 -2.832 1.481 -0.37
</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="6506.833" A="-2.10612257E11" B="6.5003784E7" C="-5015.5986" Error="0.00148"/>
<QuasiParabolic ID="2" StartDistance="6506.833" EndDistance="6533.667" A="0.0" B="598.4076" C="-0.051946826" Error="0.00896"/>
<QuasiParabolic ID="3" StartDistance="6533.667" EndDistance="6535.0" A="-2.84264392E12" B="8.6990112E8" C="-66551.375" Error="0.0162"/>
<QuasiParabolic ID="4" StartDistance="6535.0" EndDistance="6556.0" A="1.10848639E11" B="-3.399866E7" C="2606.9858" Error="0.0372"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6559.0" A="-4.73007587E11" B="1.44114896E8" C="-10977.025" Error="0.002"/>
<QuasiParabolic ID="6" StartDistance="6559.0" EndDistance="6566.0" A="7.9873887E12" B="-2.43566746E9" C="185682.7" Error="0.0303"/>
<QuasiParabolic ID="7" StartDistance="6566.0" EndDistance="6575.0" A="1.12646485E13" B="-3.43391923E9" C="261699.44" Error="0.0348"/>
<QuasiParabolic ID="8" StartDistance="6575.0" EndDistance="6583.0" A="3.7394154E13" B="-1.1382057E10" C="866120.6" Error="0.00807"/>
<QuasiParabolic ID="9" StartDistance="6583.0" EndDistance="6591.0" A="2.76730237E13" B="-8.4286536E9" C="641800.06" Error="0.0179"/>
<QuasiParabolic ID="10" StartDistance="6591.0" EndDistance="6607.928" A="-4.0441987E13" B="1.22404444E10" C="-926178.8" Error="0.00848"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="80.5" Depth="0.154"/>
<TopsideChapman PeakHeight="237.928" PeakDensity="186298.08" PeakScaleHeight="14.658" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
