<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 05:30:00.000"
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" >
2026.04.14 (104) 05:30:00</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">
FF202610404140530001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.732" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.570" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.807" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.117" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.744" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.374" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.272" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.717" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.018" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.340" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.420" 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" >
2.425 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 230.000 230.000 232.500 232.500 232.500 235.000 237.500 237.500 240.000 240.000 242.500 242.500 245.000 247.500 249.066 250.828 252.825 255.106 257.738 260.807 264.433 268.782 274.095 280.732 289.258 300.615 316.492
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 66 72 69 72 69 66 69 72 69 72 75 72 75 75 78 51 51 60 0 0 0 69 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 -1.5625 -1.5625 -1.5625 -1.5625 10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="356">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.117 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0
</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 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.37906182 0.41503218 0.4537482 0.49504542 0.5388134 0.5850165 0.6336576 0.6847919 0.73852384 0.794988 0.8543226 0.9166873 0.9822673 1.0512093 1.123667 1.1997517 1.2795472 1.363006 1.4500465 1.5404168 1.63375 1.7295073 1.8269784 1.925326 2.0236218 2.1209025 2.216174 2.3085806 2.397316 2.481742 2.5613637 2.6358109 2.7048414 2.7682974 2.8261085 2.8782573 2.9247603 2.965661 3.0010169 3.030892 3.0553522 3.074447 3.0882263 3.0967245 3.099964 3.1 3.0988147 3.0946918 3.0877507 3.0781333 3.0659811 3.0514362 3.0346386 3.015727 2.9948378 2.972104 2.9476564 2.9216213 2.8941221 2.8652775 2.8352022 2.8040066 2.7717967 2.738674 2.7047355 2.6700735 2.6347764 2.5989273 2.5626054 2.5258858 2.4888391 2.4515321 2.4140275 2.3763838 2.3386567 2.3008971 2.2631536 2.2254708 2.1878905 2.1504512 2.1131887 2.0761364 2.039324 2.0027802 1.9665298 1.9305967 1.8950019 1.8597645 1.824902 1.79043 1.7563623 1.7227114 1.689488 1.6567017 1.6243607 1.592472 1.5610415 1.5300739 1.4995731 1.469542 1.4399829 1.4108969 1.3822848 1.3541461 1.3264805 1.2992866 1.2725625 1.2463061 1.2205145 1.1951847 1.1703131 1.145896 1.1219292 1.0984083 1.0753287 1.0526855 1.0304737 1.0086881 0.98732316 0.96637356 0.94583356 0.9256975 0.9059595 0.8866138 0.86765444 0.84907544 0.8308708 0.81303453 0.7955606 0.77844304 0.7616758 0.74525285 0.7291683 0.7134161 0.6979905 0.6828854 0.66809523 0.65361404 0.6394362 0.62555593 0.61196774 0.5986661 0.58564544 0.5729004 0.56042564 0.54821587 0.5362659 0.52457064 0.513125 0.50192404 0.49096277 0.48023647 0.46974033 0.4594697 0.44942 0.43958673 0.4299654 0.4205517 0.41134128 0.40232998 0.39351368 0.38488826 0.3764498 0.3681943 0.360118 0.3522171 0.34448794 0.33692685 0.32953027 0.32229474 0.31521684 0.3082932 0.30152053 0.29489562 0.2884153 0.28207654 0.2758762 0.2698114 0.26387918 0.2580767 0.25240117 0.24684988 0.2414201 0.23610924 0.23091471 0.22583401 0.22086467 0.21600427 0.21125045 0.2066009 0.20205337 0.19760562 0.19325548 0.18900086 0.18483964 0.1807698 0.17678936 0.17289636 0.16908889 0.16536509 0.16172312 0.15816121 0.1546776 0.15127058 0.14793848 0.14467965 0.1414925 0.13837546 0.13532698 0.13234557 0.12942976 0.12657811 0.123789206 0.12106168 0.118394196 0.11578541 0.113234065 0.11073888 0.10829862 0.1059121 0.10357812 0.10129553 0.0990632 0.09688004 0.09474495 0.09265689 0.09061481 0.08861772 0.08666461 0.08475452 0.08288651 0.08105965 0.07927303 0.07752578 0.07581701 0.0741459 0.072511606 0.070913315 0.06935024 0.067821614 0.06632666 0.06486466 0.06343486 0.06203658 0.06066911 0.059331775 0.058023907 0.056744866 0.05549401 0.054270722 0.053074393 0.051904432 0.050760254

</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="3.1" PeakHeight="237.117" Num="5" zHalfNm="218.744" Error="1.305">
-45.694 1.97 -1.834 0.91 -0.219
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="3067.9727" C="-0.43144435" Error="0.0491"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6561.0" A="1.3924779E10" B="-4389400.0" C="345.65442" Error="0.0491"/>
<QuasiParabolic ID="4" StartDistance="6561.0" EndDistance="6573.0" A="7.2979285E12" B="-2.22478387E9" C="169557.23" Error="0.0406"/>
<QuasiParabolic ID="5" StartDistance="6573.0" EndDistance="6592.0" A="1.83149758E13" B="-5.5769964E9" C="424555.9" Error="0.0268"/>
<QuasiParabolic ID="6" StartDistance="6592.0" EndDistance="6607.117" A="-2.91980706E13" B="8.8383693E9" C="-668842.56" Error="0.0108"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="237.117" PeakDensity="119230.766" PeakScaleHeight="14.018" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
