<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 00:55:00.000"
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" >
2026.05.19 (139) 00:55:00</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">
FF202613905190055001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.734" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.722" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="3.525" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="267.816" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.285" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.108" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.625" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.627" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.935" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.047" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.990" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.300" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="30">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 240.000 240.000 240.000 242.500 242.500 242.500 245.000 245.000 247.500 247.500 250.000 250.000 250.778 251.641 252.604 253.685 254.909 256.305 257.911 259.780 261.982 264.614 267.816 271.795 276.874 283.582 292.853 306.500 328.582
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 72 96 96 96 96 99 99 96 99 96 99 96 99 99 99 99 96 99 96 84 81 81 81 81 75 78 75 81
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="354">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.75 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.25 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.285 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0
</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 0.35182965 0.3506064 0.3491724 0.34738788 0.34533682 0.34299496 0.34037665 0.33746356 0.3342082 0.33063674 0.3267138 0.32253745 0.31796023 0.31297803 0.30765462 0.30189866 0.29567927 0.28909197 0.28191414 0.2741947 0.26597098 0.25704813 0.24743798 0.23701459 0.22570056 0.21345264 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 0.20258823 0.2077647 0.21294117 0.21811765 0.22329412 0.2284706 0.23364706 0.23882353 0.244 0.24917647 0.25435293 0.2595294 0.2647059 0.26988235 0.27505884 0.2802353 0.28541178 0.29058823 0.2957647 0.30094117 0.30611765 0.3112941 0.3164706 0.32164705 0.32682353 0.332 0.33717647 0.34235293 0.3475294 0.3527059 0.354 0.38459468 0.4286142 0.47613153 0.52701074 0.58118165 0.63868093 0.6995593 0.7639728 0.8320668 0.9040229 0.98004544 1.0603356 1.1450561 1.2343469 1.3283442 1.4270287 1.5303442 1.6381072 1.7499659 1.8654045 1.9837506 2.1041892 2.2257104 2.347273 2.4677362 2.58602 2.7010727 2.8119056 2.9177642 3.0179186 3.1118248 3.199082 3.2793553 3.3524399 3.4181764 3.4764807 3.527298 3.570606 3.6064086 3.634705 3.6555092 3.6688378 3.674697 3.675 3.6739345 3.6689703 3.6601417 3.647657 3.6317246 3.612553 3.5903473 3.565311 3.5376427 3.507537 3.475182 3.4407613 3.404452 3.366424 3.326841 3.2858598 3.2436292 3.200292 3.1559834 3.1108313 3.064957 3.0184746 2.9714918 2.92411 2.8764234 2.8285208 2.780485 2.7323925 2.6843154 2.6363194 2.588466 2.5408115 2.4934082 2.4463034 2.3995407 2.35316 2.307197 2.261685 2.2166529 2.1721272 2.1281314 2.0846865 2.041811 1.9995207 1.9578295 1.9167492 1.87629 1.8364599 1.7972655 1.758712 1.720803 1.6835409 1.646927 1.6109614 1.5756433 1.5409708 1.5069414 1.4735518 1.4407978 1.4086748 1.3771775 1.3463002 1.3160367 1.2863802 1.2573239 1.2288603 1.2009819 1.1736809 1.146949 1.1207783 1.0951601 1.070086 1.0455474 1.0215354 0.99804133 0.9750564 0.95257175 0.93057853 0.90906787 0.888031 0.86745906 0.8473433 0.8276751 0.80844575 0.78964674 0.7712696 0.75330585 0.7357473 0.71858567 0.7018128 0.68542075 0.66940165 0.6537476 0.63845104 0.62350434 0.60890007 0.59463096 0.58068967 0.5670693 0.55376273 0.54076314 0.5280639 0.5156584 0.50354004 0.4917026 0.48013973 0.46884543 0.45781362 0.44703844 0.4365141 0.42623502 0.41619557 0.40639043 0.3968142 0.3874617 0.37832785 0.36940768 0.36069626 0.35218886 0.34388074 0.33576742 0.32784432 0.3201071 0.3125515 0.30517328 0.2979684 0.29093277 0.28406253 0.27735382 0.27080292 0.2644061 0.25815985 0.25206062 0.24610502 0.24028966 0.2346113 0.22906673 0.22365282 0.21836653 0.21320488 0.20816493 0.20324384 0.19843884 0.1937472 0.18916625 0.18469341 0.18032613 0.17606196 0.17189844 0.16783322 0.16386402 0.15998854 0.15620458 0.15251002 0.14890273 0.14538066 0.1419418 0.1385842 0.13530594 0.13210516 0.12898003 0.12592874 0.1229496 0.12004087 0.1172009 0.11442808 0.11172081 0.10907754 0.10649678 0.10397704 0.10151689 0.09911491 0.09676973 0.094480015 0.092244454 0.09006177 0.0879307 0.085850045 0.0838186 0.0818352 0.07989873 0.078008056 0.076162115 0.074359834 0.07260019 0.07088219 0.069204815 0.06756713 0.06596819 0.06440708 0.06288291 0.061394792 0.059941888 0.05852336 0.057138395 0.0557862 0.054465998 0.053177036 0.051918574 0.050689887

</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="3.675" PeakHeight="242.285" Num="5" zHalfNm="225.108" Error="0.932">
-44.049 1.788 -1.309 0.697 -0.162
</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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="651.2893" C="-0.060025368" Error="0.0108"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6541.0" A="-2.66968393E12" B="8.1623469E8" C="-62389.27" Error="0.025"/>
<QuasiParabolic ID="4" StartDistance="6541.0" EndDistance="6558.0" A="1.22000581E11" B="-3.7361008E7" C="2860.3625" Error="0.0395"/>
<QuasiParabolic ID="5" StartDistance="6558.0" EndDistance="6568.0" A="-5.4492754E10" B="1.6464345E7" C="-1243.4308" Error="0.00673"/>
<QuasiParabolic ID="6" StartDistance="6568.0" EndDistance="6570.0" A="1.08210065E13" B="-3.29519795E9" C="250862.4" Error="0.0337"/>
<QuasiParabolic ID="7" StartDistance="6570.0" EndDistance="6573.0" A="9.8843807E12" B="-3.0100759E9" C="229163.62" Error="0.0178"/>
<QuasiParabolic ID="8" StartDistance="6573.0" EndDistance="6579.0" A="1.00263715E13" B="-3.05328051E9" C="232450.14" Error="0.0167"/>
<QuasiParabolic ID="9" StartDistance="6579.0" EndDistance="6589.0" A="2.79766683E13" B="-8.5101271E9" C="647167.2" Error="0.025"/>
<QuasiParabolic ID="10" StartDistance="6589.0" EndDistance="6599.0" A="2.46219612E13" B="-7.4918518E9" C="569896.3" Error="0.0277"/>
<QuasiParabolic ID="11" StartDistance="6599.0" EndDistance="6612.285" A="-4.8480412E13" B="1.46637394E10" C="-1108812.0" Error="0.0106"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="242.285" PeakDensity="167563.58" PeakScaleHeight="13.047" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
