<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-05 -095 06:35:00.000"
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" >
2026.04.05 (095) 06:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609504050635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.225" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.942" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.655" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.225" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.225" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="242.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.225" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.225" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="221.147" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="203.983" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.161" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.556" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.221" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.097" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.680" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="81">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 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 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 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 232.500 232.500 235.000 235.000 237.500 237.500 240.000 242.500 242.500 242.500 247.500 250.000 252.500 255.000 260.000 268.922 285.797
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 51 51 63 63 75 75 63 63 63 63 63 63 63 69 72 72 72 72 57 54 51 51 0 0 0 51 78 81 81 81 93 93 96 96 96 96 96 93 96 96 93 90 90 90 81 0 69 72 72 78 81 81 78 81 81 81 63 63 60 57 72 69 99 102 99 105 105 102 108 105 102 99 84 84 84 84 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 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 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="339">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.147 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0
</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 0.3538169 0.35312194 0.35206616 0.35058403 0.34861574 0.3462502 0.3433677 0.34006724 0.336247 0.33195284 0.32717335 0.32179055 0.31589526 0.3093662 0.30218917 0.2942784 0.28568256 0.27623004 0.26589635 0.25450236 0.24202472 0.22809964 0.21270788 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.20614286 0.21257143 0.219 0.22542857 0.23185714 0.23828572 0.24471429 0.25114286 0.25757143 0.264 0.27042857 0.27685714 0.2832857 0.28971428 0.29614285 0.30257142 0.309 0.31542858 0.32185715 0.32828572 0.3347143 0.34114286 0.34757143 0.354 0.40098023 0.4534368 0.51078486 0.5726379 0.638832 0.7094078 0.78458947 0.8646991 0.95014745 1.0414431 1.1391197 1.2437232 1.3557667 1.4757485 1.6039275 1.7403684 1.884758 2.0362725 2.193574 2.3547277 2.517395 2.6790984 2.8373306 2.9900174 3.1354203 3.272316 3.3999493 3.517936 3.6261058 3.724508 3.8133252 3.8927758 3.9631178 4.024608 4.077513 4.1220455 4.158404 4.1867595 4.207238 4.2199373 4.224917 4.225 4.2232738 4.2169867 4.2063217 4.191516 4.172806 4.1504283 4.1246166 4.0956006 4.0636063 4.0288534 3.9915562 3.951922 3.910151 3.8664365 3.8209631 3.7739086 3.725442 3.675724 3.6249084 3.5731397 3.5205555 3.4672852 3.4134502 3.3591657 3.3045382 3.2496688 3.1946507 3.1395712 3.0845115 3.0295463 2.9747455 2.9201732 2.8658879 2.811944 2.758391 2.7052736 2.6526334 2.6005073 2.5489285 2.4979272 2.4475303 2.3977616 2.3486416 2.300189 2.2524197 2.2053468 2.1589823 2.113335 2.0684128 2.0242214 1.9807652 1.9380469 1.8960682 1.8548291 1.8143288 1.7745653 1.7355357 1.6972364 1.6596627 1.6228094 1.5866705 1.5512396 1.5165097 1.4824731 1.4491221 1.4164484 1.3844433 1.3530979 1.3224031 1.2923496 1.2629277 1.2341279 1.2059402 1.178355 1.1513621 1.1249515 1.0991132 1.0738372 1.0491133 1.0249316 1.0012819 0.9781545 0.9555394 0.93342674 0.9118068 0.89067 0.8700066 0.8498074 0.83006275 0.8107636 0.7919008 0.7734653 0.7554482 0.73784083 0.7206345 0.7038208 0.6873913 0.6713378 0.65565217 0.64032656 0.6253531 0.6107241 0.5964321 0.58246964 0.5688295 0.5555045 0.5424877 0.5297722 0.5173513 0.5052185 0.49336725 0.48179123 0.47048426 0.4594402 0.4486532 0.43811736 0.42782703 0.41777655 0.40796053 0.39837357 0.38901046 0.37986606 0.37093535 0.36221343 0.35369548 0.34537685 0.33725291 0.32931918 0.3215713 0.3140049 0.30661583 0.29939997 0.29235333 0.28547195 0.278752 0.27218977 0.26578155 0.25952375 0.2534129 0.24744557 0.24161841 0.23592815 0.2303716 0.22494563 0.2196472 0.21447332 0.2094211 0.20448768 0.19967027 0.19496618 0.19037275 0.18588737 0.18150753 0.17723075 0.1730546 0.16897675 0.16499488 0.16110674 0.15731013 0.15360288 0.14998293 0.14644822 0.14299673 0.13962652 0.13633569 0.13312235 0.12998469 0.12692094 0.12392936 0.12100824 0.11815594 0.11537083 0.11265133 0.10999591 0.10740305 0.10487128 0.10239916 0.099985294 0.09762831 0.09532686 0.09307966 0.0908854 0.08874285 0.086650796 0.08460805 0.082613446 0.08066585 0.078764156 0.07690728 0.07509417 0.0733238 0.071595155 0.069907255 0.06825914 0.06664988 0.06507854 0.06354425 0.06204612 0.06058331 0.05915498 0.057760317 0.056398533 0.055068854 0.053770516 0.05250279 0.051264945 0.050056282

</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="4.225" PeakHeight="221.147" Num="5" zHalfNm="203.983" Error="0.234">
-43.796 4.308 -2.587 1.212 -0.284
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="14" 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="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="-138.4227" C="0.06292807" Error="0.00248"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6528.0" A="1.3999858E12" B="-4.29068608E8" C="32875.35" Error="0.0045"/>
<QuasiParabolic ID="4" StartDistance="6528.0" EndDistance="6530.0" A="-4.00776856E11" B="1.22635632E8" C="-9381.407" Error="0.00951"/>
<QuasiParabolic ID="5" StartDistance="6530.0" EndDistance="6548.0" A="9.6898957E10" B="-2.9791874E7" C="2289.918" Error="0.00961"/>
<QuasiParabolic ID="6" StartDistance="6548.0" EndDistance="6549.0" A="-2.87206834E11" B="8.752816E7" C="-6668.545" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6549.0" EndDistance="6552.0" A="1.47098866E13" B="-4.492436E9" C="343000.44" Error="0.00276"/>
<QuasiParabolic ID="8" StartDistance="6552.0" EndDistance="6554.0" A="8.5516521E12" B="-2.61263334E9" C="199547.84" Error="0.00494"/>
<QuasiParabolic ID="9" StartDistance="6554.0" EndDistance="6557.0" A="1.52216074E13" B="-4.6480179E9" C="354825.88" Error="0.00239"/>
<QuasiParabolic ID="10" StartDistance="6557.0" EndDistance="6562.0" A="2.45511718E13" B="-7.4936986E9" C="571821.5" Error="0.00835"/>
<QuasiParabolic ID="11" StartDistance="6562.0" EndDistance="6572.0" A="5.8055455E13" B="-1.77053061E10" C="1349908.0" Error="0.01"/>
<QuasiParabolic ID="12" StartDistance="6572.0" EndDistance="6578.0" A="-5.0674139E12" B="1.50433165E9" C="-111567.76" Error="0.00623"/>
<QuasiParabolic ID="13" StartDistance="6578.0" EndDistance="6591.147" A="-5.9994108E13" B="1.82044529E10" C="-1380959.8" Error="0.00336"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="221.147" PeakDensity="221471.78" PeakScaleHeight="13.097" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
