<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 07:25:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.15 (105) 07:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610504150725001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.695" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.268" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="230.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="230.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="273.618" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.375" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.375" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="240.306" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="220.594" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.829" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.165" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.745" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.130" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.440" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.730" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="28">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
230.000 230.000 232.500 232.500 235.000 235.000 235.000 236.250 237.500 240.000 242.500 242.500 245.000 245.000 250.000 250.000 252.500 255.000 257.500 262.500 265.000 268.898 273.618 279.452 286.847 296.524 309.736 328.848
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 87 87 72 72 69 0 69 72 72 72 75 72 72 72 60 63 48 48 69 0 0 0 0 0 0 0
</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 -7.8125 -1.5625 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="372">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 240.306 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0
</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 0.35339895 0.35261247 0.3516065 0.35023698 0.34851307 0.34651887 0.34419376 0.34155348 0.33854687 0.33526585 0.33153415 0.32752004 0.32306805 0.31823066 0.3130061 0.3072951 0.30113927 0.29447237 0.28732234 0.2796049 0.2711702 0.2621697 0.25230387 0.24165411 0.23006094 0.21740833 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 0.2055 0.211 0.2165 0.222 0.2275 0.233 0.2385 0.244 0.2495 0.255 0.2605 0.266 0.2715 0.277 0.2825 0.288 0.2935 0.299 0.3045 0.31 0.3155 0.321 0.3265 0.332 0.3375 0.343 0.3485 0.354 0.38664275 0.42270532 0.46181247 0.50358087 0.54772043 0.5940349 0.64247143 0.6930201 0.74578923 0.8009017 0.8585482 0.91890544 0.98221785 1.0487133 1.1185977 1.1921128 1.2694067 1.3505898 1.4356432 1.524421 1.6165922 1.7115607 1.8085289 1.906466 2.004215 2.10055 2.1943274 2.2845347 2.3703833 2.451291 2.526888 2.5970023 2.661569 2.7206376 2.7743118 2.822722 2.866051 2.9044373 2.938056 2.9670465 2.9915366 3.0116441 3.027458 3.0390577 3.046495 3.0498078 3.05 3.0493793 3.046354 3.0409112 3.0331614 3.023216 3.011186 2.9971814 2.981312 2.9636858 2.9444087 2.923585 2.9013162 2.877702 2.8528388 2.8268197 2.7997358 2.7716742 2.7427192 2.712952 2.68245 2.651288 2.619537 2.587265 2.5545368 2.5214138 2.4879549 2.4542153 2.4202473 2.386101 2.3518229 2.3174572 2.2830453 2.2486262 2.2142365 2.1799102 2.145679 2.1115732 2.0776198 2.043845 2.010272 1.9769235 1.9438192 1.9109778 1.8784167 1.8461511 1.8141954 1.7825625 1.751264 1.7203103 1.6897109 1.6594738 1.6296066 1.6001155 1.5710061 1.542283 1.5139502 1.4860108 1.4584674 1.4313217 1.4045753 1.3782288 1.3522824 1.326736 1.3015888 1.2768397 1.2524875 1.2285302 1.2049658 1.1817918 1.1590055 1.1366042 1.1145844 1.0929431 1.0716765 1.050781 1.0302528 1.0100878 0.99028194 0.970831 0.9517306 0.9329764 0.91456395 0.89648867 0.878746 0.8613313 0.84423995 0.8274672 0.8110085 0.794859 0.77901405 0.7634689 0.74821895 0.7332594 0.7185856 0.70419294 0.6900768 0.6762325 0.6626556 0.6493414 0.6362856 0.6234836 0.61093104 0.5986235 0.58655673 0.57472646 0.5631284 0.55175847 0.54061246 0.5296863 0.518976 0.50847757 0.49818715 0.48810086 0.4782149 0.4685255 0.45902902 0.44972175 0.44060022 0.4316608 0.4229001 0.4143147 0.4059012 0.39765632 0.38957685 0.38165954 0.3739013 0.36629903 0.3588497 0.35155034 0.344398 0.3373898 0.33052295 0.32379466 0.3172022 0.31074294 0.30441418 0.2982134 0.29213804 0.28618562 0.2803537 0.2746399 0.26904187 0.26355729 0.2581839 0.25291952 0.24776192 0.242709 0.23775865 0.23290883 0.22815752 0.22350274 0.21894257 0.21447507 0.21009842 0.20581076 0.20161033 0.19749534 0.19346409 0.18951489 0.18564607 0.18185602 0.17814316 0.1745059 0.17094274 0.16745217 0.16403271 0.16068293 0.15740143 0.15418682 0.15103772 0.14795284 0.14493085 0.1419705 0.13907051 0.13622968 0.13344678 0.13072066 0.12805016 0.12543415 0.1228715 0.120361164 0.11790205 0.11549312 0.11313336 0.11082177 0.108557366 0.10633919 0.10416629 0.10203776 0.09995268 0.09791019 0.095909394 0.09394946 0.09202955 0.09014885 0.08830655 0.08650189 0.08473408 0.08300238 0.081306055 0.07964438 0.078016646 0.07642216 0.07486025 0.07333025 0.07183151 0.07036339 0.068925254 0.067516506 0.06613655 0.06478477 0.063460626 0.062163536 0.060892947 0.05964832 0.058429126 0.057234846 0.05606497 0.054919 0.053796448 0.05269684 0.051619697 0.05056457

</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="3.05" PeakHeight="240.306" Num="5" zHalfNm="220.594" Error="1.577">
-48.288 3.735 -2.772 1.391 -0.372
</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="6508.0" A="-1.93482834E11" B="5.9716924E7" C="-4607.662" Error="0.00161"/>
<QuasiParabolic ID="2" StartDistance="6508.0" EndDistance="6536.0" A="0.0" B="-2202.3176" C="0.3784246" Error="0.0368"/>
<QuasiParabolic ID="3" StartDistance="6536.0" EndDistance="6559.0" A="9.4839177E10" B="-2.909104E7" C="2230.8801" Error="0.0368"/>
<QuasiParabolic ID="4" StartDistance="6559.0" EndDistance="6562.0" A="-4.67584254E11" B="1.42405664E8" C="-10842.507" Error="0.00285"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6569.0" A="6.1686258E12" B="-1.88021248E9" C="143273.47" Error="0.0281"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6579.0" A="9.0408349E12" B="-2.75468621E9" C="209834.12" Error="0.0372"/>
<QuasiParabolic ID="7" StartDistance="6579.0" EndDistance="6592.0" A="2.23597193E13" B="-6.8035948E9" C="517548.72" Error="0.0264"/>
<QuasiParabolic ID="8" StartDistance="6592.0" EndDistance="6610.306" A="-2.34458301E13" B="7.0937201E9" C="-536555.9" Error="0.0104"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
<TopsideChapman PeakHeight="240.306" PeakDensity="115415.63" PeakScaleHeight="15.13" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
