<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 01:20:00.000"
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) 01:20:00</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">
FF202613105110120001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.653" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.606" 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="4.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="242.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="242.500" 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="3.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.545" 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="249.294" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="230.411" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.467" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.042" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.054" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.392" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.870" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.470" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="33">
<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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
242.500 242.500 242.500 242.500 245.000 245.000 245.000 246.250 247.500 250.000 250.000 250.000 252.500 255.000 255.000 257.500 257.500 257.500 262.500 263.675 265.005 266.521 268.266 270.296 272.687 275.545 279.021 283.340 288.852 296.128 306.180 320.967 344.868
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 66 69 72 84 87 84 87 111 111 102 99 114 111 114 111 75 75 111 111 111 108 84 87 90 87 87 84 81 75 63 60 63
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="382">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.91667 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.83333 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.75 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 249.294 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0
</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 0.3529119 0.3519786 0.3509026 0.34953943 0.34789655 0.34598285 0.3438088 0.34138623 0.3386593 0.33571413 0.33243394 0.32884502 0.3249759 0.3207348 0.3162249 0.311316 0.3060709 0.30039963 0.29436976 0.2878726 0.28096467 0.27349284 0.26549044 0.25688842 0.24761072 0.23761433 0.22685163 0.21513027 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 0.20083019 0.20581132 0.21079245 0.21577358 0.22075471 0.22573584 0.23071699 0.23569812 0.24067925 0.24566038 0.2506415 0.25562266 0.2606038 0.26558492 0.27056605 0.27554718 0.2805283 0.28550944 0.29049057 0.2954717 0.30045283 0.30543396 0.3104151 0.31539622 0.32037735 0.32535848 0.3303396 0.33532074 0.3403019 0.34528303 0.35026416 0.354 0.36341947 0.40310794 0.44578728 0.49124572 0.5393615 0.5900971 0.6434927 0.6996582 0.7587469 0.8209474 0.8864632 0.9555252 1.0283583 1.1052217 1.1863503 1.2719392 1.3621472 1.4570781 1.5567427 1.6609935 1.7695383 1.8819082 1.9974248 2.1152043 2.2342393 2.3533893 2.4714293 2.5872493 2.6997812 2.8081288 2.9115174 3.0094044 3.1013434 3.1870658 3.26639 3.3392515 3.4056227 3.4655254 3.5190072 3.5661552 3.6070395 3.6417422 3.6703317 3.6928809 3.7094405 3.7200532 3.7247446 3.725 3.7241335 3.7200158 3.7126498 3.7021928 3.688802 3.6726353 3.653849 3.6325974 3.6090329 3.5833051 3.55556 3.5259404 3.4945846 3.4616268 3.4271972 3.3914206 3.3544178 3.3163044 3.2771912 3.2371838 3.1963837 3.154887 3.1127849 3.0701644 3.0271075 2.983692 2.939991 2.8960736 2.8520043 2.8078444 2.763651 2.7194767 2.675372 2.6313827 2.5875518 2.5439198 2.500523 2.457396 2.4145699 2.3720734 2.329933 2.288173 2.2468147 2.2058787 2.1653824 2.1253417 2.0857713 2.0466835 2.0080898 1.9699997 1.9324216 1.8953626 1.8588288 1.8228248 1.7873546 1.7524209 1.7180258 1.6841705 1.6508552 1.6180798 1.5858431 1.5541438 1.5229795 1.4923477 1.4622453 1.4326688 1.4036143 1.3750772 1.3470534 1.3195376 1.2925248 1.2660097 1.2399864 1.2144494 1.1893927 1.1648101 1.1406953 1.1170422 1.0938442 1.0710949 1.0487876 1.0269158 1.0054728 0.984452 0.96384674 0.94365025 0.9238559 0.904457 0.8854469 0.86681896 0.8485667 0.8306835 0.8131629 0.79599845 0.77918375 0.7627125 0.74657834 0.7307752 0.71529686 0.70013726 0.68529046 0.6707505 0.6565116 0.64256793 0.6289138 0.6155437 0.6024521 0.5896335 0.57708263 0.5647941 0.55276287 0.54098374 0.52945167 0.5181618 0.5071092 0.49628922 0.48569706 0.47532812 0.46517792 0.45524198 0.44551596 0.43599555 0.42667654 0.41755483 0.4086263 0.39988703 0.3913331 0.38296068 0.374766 0.36674535 0.35889515 0.35121188 0.343692 0.33633217 0.32912898 0.3220792 0.3151796 0.30842704 0.30181843 0.29535073 0.28902102 0.28282633 0.2767639 0.27083087 0.26502457 0.25934228 0.25378138 0.24833934 0.2430136 0.23780175 0.23270133 0.22771 0.22282544 0.21804538 0.21336763 0.20878997 0.20431031 0.19992656 0.19563666 0.19143863 0.18733051 0.18331039 0.1793764 0.17552668 0.17175944 0.16807295 0.16446546 0.1609353 0.15748079 0.15410036 0.15079239 0.14755535 0.14438772 0.14128801 0.13825479 0.13528661 0.13238211 0.12953989 0.12675865 0.12403707 0.121373884 0.11876783 0.11621769 0.113722265 0.11128039 0.10889091 0.10655271 0.10426469 0.10202577 0.099834904 0.09769106 0.09559322 0.09354042 0.09153168 0.08956605 0.087642625 0.08576048 0.08391875 0.082116544 0.08035304 0.078627385 0.076938786 0.07528644 0.07366956 0.07208741 0.07053921 0.06902427 0.06754185 0.06609126 0.06467182 0.063282855 0.061923716 0.06059376 0.059292365 0.058018915 0.056772813 0.055553466 0.054360304 0.053192765 0.0520503 0.050932366

</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="3.725" PeakHeight="249.294" Num="5" zHalfNm="230.411" Error="1.225">
-48.183 2.89 -2.095 1.08 -0.236
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6510.917" A="-1.58830494E11" B="4.902176E7" C="-3782.4177" Error="0.00166"/>
<QuasiParabolic ID="2" StartDistance="6510.917" EndDistance="6541.833" A="0.0" B="3718.746" C="-0.5311287" Error="0.0668"/>
<QuasiParabolic ID="3" StartDistance="6541.833" EndDistance="6564.0" A="-3.6613386E10" B="1.1059151E7" C="-834.9492" Error="0.0693"/>
<QuasiParabolic ID="4" StartDistance="6564.0" EndDistance="6572.0" A="3.02970569E11" B="-9.2409456E7" C="7046.5713" Error="0.012"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6579.0" A="9.4967463E12" B="-2.89027174E9" C="219908.89" Error="0.066"/>
<QuasiParabolic ID="6" StartDistance="6579.0" EndDistance="6586.0" A="1.13123179E13" B="-3.44220109E9" C="261855.19" Error="0.0281"/>
<QuasiParabolic ID="7" StartDistance="6586.0" EndDistance="6603.0" A="2.89252458E13" B="-8.7907973E9" C="667913.2" Error="0.0345"/>
<QuasiParabolic ID="8" StartDistance="6603.0" EndDistance="6619.294" A="-3.9637897E13" B="1.19764726E10" C="-904650.0" Error="0.013"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.75" Depth="0.154"/>
<TopsideChapman PeakHeight="249.294" PeakDensity="172154.16" PeakScaleHeight="14.392" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
