<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-10 -130 01:40:00.000"
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: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.10 (130) 01:40:00</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">
FF202613005100140001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.425" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.825" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.925" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="220.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" 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="4.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.536" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="230.317" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.327" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.327" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.750" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.407" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.793" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.880" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.830" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 233.750 235.000 237.500 237.500 240.000 240.000 240.000 240.000 242.500 242.500 245.000 245.000 245.000 250.000 252.500 252.500 252.500 255.000 260.000 260.000 262.500 265.536 269.729 275.899 285.876 304.749
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 81 81 93 90 93 93 96 96 108 105 99 99 96 105 72 69 90 93 96 96 87 87 87 90 87 87 84 84 84 78 87 87 99 99 93 93 84 84 105 108 72 69 72 72 90 81 84 87 84 87 93 90 93 87 87 81 54
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="361">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.66667 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 161.33333 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 230.317 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0
</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 0.35324875 0.3523882 0.35108605 0.34949994 0.34749252 0.3450799 0.34228173 0.3391207 0.33555436 0.33154994 0.32708573 0.3222145 0.31684378 0.31099588 0.3045735 0.29760364 0.290026 0.28171796 0.27274016 0.2629728 0.2523031 0.24063194 0.22781542 0.21374473 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 0.204 0.21 0.216 0.222 0.228 0.234 0.24 0.246 0.252 0.258 0.264 0.27 0.276 0.282 0.288 0.294 0.3 0.306 0.312 0.318 0.324 0.33 0.336 0.342 0.348 0.354 0.39239702 0.4388157 0.4933067 0.5549944 0.6225937 0.6949883 0.7715538 0.85205275 0.9366115 1.0254899 1.1191196 1.2180398 1.3227837 1.433976 1.5521822 1.6779249 1.8115983 1.9533424 2.1028805 2.2593868 2.4215038 2.587076 2.753548 2.9181275 3.078113 3.2312245 3.3758016 3.5107615 3.635532 3.74996 3.8541372 3.9483519 4.032923 4.10828 4.1747985 4.2328286 4.2827363 4.324793 4.359257 4.3863344 4.4061866 4.4189324 4.424649 4.425 4.423951 4.418731 4.40932 4.3959303 4.378774 4.358064 4.334011 4.306823 4.276704 4.2438536 4.208469 4.170739 4.1308484 4.0889754 4.045292 3.999963 3.9531472 3.9049962 3.8556545 3.80526 3.7539442 3.7018309 3.6490383 3.5956774 3.541853 3.4876637 3.4332025 3.3785563 3.323806 3.269028 3.2142925 3.1596656 3.1052084 3.0509772 2.997024 2.9433973 2.890141 2.8372955 2.7848976 2.7329812 2.6815765 2.6307113 2.58041 2.5306947 2.4815855 2.4330993 2.3852513 2.3380547 2.2915208 2.245659 2.2004774 2.155982 2.1121778 2.0690684 2.0266562 1.9849421 1.9439267 1.9036088 1.863987 1.8250587 1.7868207 1.7492688 1.7123988 1.6762053 1.6406827 1.6058251 1.5716257 1.5380777 1.5051738 1.4729066 1.4412682 1.4102504 1.3798453 1.3500441 1.3208386 1.2922198 1.264179 1.2367073 1.2097958 1.1834357 1.1576177 1.1323329 1.1075724 1.083327 1.0595878 1.036346 1.0135925 0.9913184 0.96951514 0.94817394 0.92728615 0.9068432 0.88683665 0.8672581 0.8480993 0.8293521 0.8110084 0.7930602 0.7754997 0.75831914 0.7415109 0.72506744 0.70898134 0.69324535 0.67785233 0.6627951 0.6480668 0.6336607 0.6195699 0.605788 0.5923084 0.5791248 0.56623095 0.5536207 0.54128814 0.52922726 0.5174323 0.5058976 0.49461755 0.48358673 0.4727998 0.46225145 0.4519366 0.44185016 0.4319872 0.42234287 0.41291243 0.40369123 0.39467472 0.38585842 0.37723798 0.3688091 0.36056763 0.3525094 0.34463048 0.33692685 0.32939473 0.32203028 0.3148299 0.30778986 0.30090675 0.29417703 0.28759733 0.28116438 0.27487487 0.26872566 0.26271367 0.25683582 0.25108916 0.24547079 0.23997785 0.23460758 0.22935723 0.22422415 0.21920574 0.21429946 0.20950279 0.20481332 0.20022865 0.19574647 0.19136447 0.18708043 0.18289217 0.17879757 0.17479452 0.17088102 0.16705503 0.1633146 0.15965785 0.1560829 0.15258794 0.14917114 0.14583081 0.14256522 0.13937269 0.13625161 0.13320038 0.13021742 0.12730123 0.12445031 0.1216632 0.11893847 0.11627473 0.11367062 0.111124806 0.10863598 0.10620287 0.103824235 0.10149885 0.09922553 0.09700311 0.094830446 0.092706434 0.09062997 0.08860001 0.0866155 0.08467544 0.08277881 0.08092465 0.07911202 0.077339984 0.07560762 0.07391406 0.07225843 0.07063986 0.06905756 0.06751069 0.06599846 0.0645201 0.06307485 0.061661966 0.06028073 0.058930427 0.05761037 0.056319878 0.05505829 0.05382496 0.052619252 0.051440552 0.050288253

</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="4.425" PeakHeight="230.317" Num="5" zHalfNm="212.327" Error="0.727">
-46.317 5.05 -3.053 1.566 -0.563
</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="6505.667" A="-2.30120505E11" B="7.1024848E7" C="-5480.187" Error="0.00139"/>
<QuasiParabolic ID="2" StartDistance="6505.667" EndDistance="6531.333" A="0.0" B="198.94354" C="0.009431483" Error="0.00272"/>
<QuasiParabolic ID="3" StartDistance="6531.333" EndDistance="6533.0" A="-8.983494E11" B="2.74943872E8" C="-21036.908" Error="0.00785"/>
<QuasiParabolic ID="4" StartDistance="6533.0" EndDistance="6535.0" A="5.00298908E11" B="-1.53235616E8" C="11733.604" Error="0.00916"/>
<QuasiParabolic ID="5" StartDistance="6535.0" EndDistance="6556.0" A="5.1733672E10" B="-1.5954745E7" C="1230.0941" Error="0.00961"/>
<QuasiParabolic ID="6" StartDistance="6556.0" EndDistance="6559.0" A="1.21406751E13" B="-3.70385613E9" C="282491.66" Error="0.0087"/>
<QuasiParabolic ID="7" StartDistance="6559.0" EndDistance="6565.0" A="1.40837409E13" B="-4.2963451E9" C="327657.72" Error="0.0087"/>
<QuasiParabolic ID="8" StartDistance="6565.0" EndDistance="6571.0" A="2.73075342E13" B="-8.3249183E9" C="634479.75" Error="0.00957"/>
<QuasiParabolic ID="9" StartDistance="6571.0" EndDistance="6582.0" A="6.1613642E13" B="-1.876659E10" C="1429006.5" Error="0.00873"/>
<QuasiParabolic ID="10" StartDistance="6582.0" EndDistance="6588.0" A="-4.1023372E13" B="1.24205916E10" C="-940119.94" Error="0.0027"/>
<QuasiParabolic ID="11" StartDistance="6588.0" EndDistance="6600.317" A="-5.8913613E13" B="1.78517524E10" C="-1352321.0" Error="1.24E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="77.0" Depth="0.154"/>
<TopsideChapman PeakHeight="230.317" PeakDensity="242935.8" PeakScaleHeight="13.793" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
