<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 02:15:00.000"
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" >
2026.05.12 (132) 02:15:00</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">
FF202613205120215001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.548" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.062" 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="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="276.250" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="276.250" 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="84" Val="5.500" Name="QF" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.395" 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="270.077" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="249.387" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.074" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.587" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.976" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.063" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.530" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.250" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="19">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
277.500 276.250 276.834 277.489 278.230 279.074 280.045 281.173 282.499 284.081 286.002 288.384 291.412 295.395 300.866 308.851 321.602 345.196 403.704
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 69 81 84 99 93 93 87 90 84 90 93 93 96 69 66 105 102
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="424">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.385 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.77 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.155 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 270.077 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0
</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 0.35362422 0.35321164 0.35265058 0.35186794 0.350941 0.34979865 0.3485186 0.3471045 0.34541655 0.34360594 0.3416075 0.33936033 0.3370127 0.334437 0.3316472 0.32859385 0.32542294 0.3219628 0.31835988 0.31445888 0.3103511 0.30595967 0.3013291 0.2964309 0.2912044 0.28563774 0.2798254 0.27362803 0.26704895 0.2600756 0.25265417 0.2448126 0.23636647 0.22745243 0.2178816 0.20764858 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20094743 0.20506674 0.20918603 0.21330534 0.21742463 0.22154394 0.22566323 0.22978254 0.23390183 0.23802114 0.24214043 0.24625973 0.25037903 0.25449833 0.25861764 0.26273692 0.26685622 0.27097553 0.27509484 0.2792141 0.28333342 0.28745273 0.29157203 0.2956913 0.29981062 0.30392992 0.30804923 0.3121685 0.31628782 0.32040712 0.32452643 0.3286457 0.332765 0.33688432 0.3410036 0.3451229 0.3492422 0.35336152 0.354 0.37593773 0.40702116 0.44442427 0.48821494 0.537477 0.5907431 0.64667237 0.70443946 0.76370925 0.8244514 0.8868496 0.9511586 1.0177268 1.0869019 1.1591333 1.2348365 1.3144904 1.3985652 1.4875114 1.5816971 1.6813853 1.7865434 1.8967398 2.0110395 2.12786 2.2451432 2.3605301 2.4718747 2.577354 2.6758163 2.766715 2.8498762 2.9254913 2.9939134 3.055555 3.1108778 3.1603148 3.2042537 3.243059 3.2770448 3.3064778 3.331588 3.35257 3.3695834 3.3827477 3.3921635 3.3978965 3.3999918 3.4 3.398917 3.395361 3.389427 3.381218 3.3708375 3.358389 3.343975 3.3276982 3.3096592 3.2899575 3.2686906 3.245954 3.2218418 3.1964445 3.169851 3.1421475 3.1134176 3.0837414 3.053197 3.0218594 2.9898007 2.9570901 2.923794 2.8899758 2.8556964 2.8210137 2.7859828 2.7506566 2.7150846 2.679314 2.6433902 2.607355 2.5712492 2.5351102 2.4989736 2.462873 2.4268396 2.3909032 2.355091 2.3194294 2.2839417 2.2486508 2.213577 2.17874 2.1441574 2.1098454 2.0758193 2.0420928 2.0086787 1.9755883 1.9428324 1.91042 1.8783598 1.8466592 1.8153251 1.7843632 1.7537787 1.723576 1.6937587 1.66433 1.6352924 1.6066477 1.5783974 1.5505424 1.523083 1.4960194 1.469351 1.4430773 1.417197 1.3917087 1.3666108 1.3419011 1.3175775 1.2936373 1.2700781 1.2468966 1.22409 1.2016549 1.179588 1.1578856 1.1365441 1.1155597 1.0949286 1.0746467 1.05471 1.0351144 1.0158557 0.9969297 0.97833204 0.9600585 0.94210476 0.9244664 0.907139 0.8901183 0.87339985 0.85697925 0.8408521 0.8250141 0.8094608 0.79418796 0.7791912 0.76446617 0.7500087 0.73581445 0.7218793 0.708199 0.6947694 0.68158644 0.66864604 0.6559441 0.6434767 0.6312399 0.6192298 0.6074425 0.59587425 0.5845212 0.5733797 0.56244606 0.5517167 0.541188 0.53085643 0.5207185 0.51077086 0.50101006 0.49143276 0.48203576 0.47281575 0.46376958 0.45489413 0.4461863 0.43764302 0.42926136 0.42103833 0.41297105 0.40505666 0.39729238 0.3896754 0.3822031 0.37487274 0.3676817 0.36062747 0.35370743 0.34691915 0.34026015 0.33372805 0.32732043 0.32103503 0.31486952 0.3088217 0.30288935 0.2970703 0.2913624 0.28576362 0.28027183 0.2748851 0.26960137 0.26441878 0.25933534 0.25434923 0.24945861 0.24466164 0.23995657 0.23534167 0.2308152 0.2263755 0.22202094 0.21774986 0.21356072 0.20945194 0.20542198 0.20146936 0.1975926 0.19379026 0.19006091 0.18640319 0.18281569 0.17929707 0.17584607 0.17246135 0.16914165 0.16588575 0.16269241 0.15956044 0.15648867 0.15347596 0.15052114 0.14762314 0.14478086 0.14199322 0.1392592 0.13657776 0.13394788 0.13136859 0.12883891 0.1263579 0.123924606 0.12153813 0.11919757 0.116902046 0.11465069 0.11244266 0.11027711 0.10815324 0.10607025 0.10402734 0.10202376 0.100058734 0.09813154 0.09624144 0.09438772 0.09256969 0.09078666 0.08903795 0.087322906 0.085640885 0.08399125 0.08237337 0.08078665 0.07923048 0.07770427 0.07620745 0.074739456 0.07329973 0.071887724 0.07050291 0.06914476 0.06781278 0.06650644 0.06522526 0.063968755 0.062736444 0.061527874 0.060342576 0.05918011 0.058040034 0.056921914 0.05582533 0.05474987 0.05369512 0.05266069 0.05164618 0.050651215

</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="3.4" PeakHeight="270.077" Num="5" zHalfNm="249.387" Error="1.777">
-51.33 6.287 -4.274 2.328 -0.933
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6517.385" A="-1.08827894E11" B="3.3588856E7" C="-2591.6074" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.385" EndDistance="6554.77" A="0.0" B="3232.8816" C="-0.45600194" Error="0.0698"/>
<QuasiParabolic ID="3" StartDistance="6554.77" EndDistance="6592.0" A="9.0916004E9" B="-2873018.5" C="226.74205" Error="0.0698"/>
<QuasiParabolic ID="4" StartDistance="6592.0" EndDistance="6597.0" A="1.06469576E13" B="-3.2303808E9" C="245031.64" Error="0.052"/>
<QuasiParabolic ID="5" StartDistance="6597.0" EndDistance="6608.0" A="9.498704E12" B="-2.88226688E9" C="218647.39" Error="0.0392"/>
<QuasiParabolic ID="6" StartDistance="6608.0" EndDistance="6619.0" A="3.48704138E13" B="-1.05613558E10" C="799692.25" Error="0.00645"/>
<QuasiParabolic ID="7" StartDistance="6619.0" EndDistance="6640.077" A="-2.5957243E13" B="7.8183562E9" C="-588713.25" Error="0.00746"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.155" Depth="0.154"/>
<TopsideChapman PeakHeight="270.077" PeakDensity="143424.31" PeakScaleHeight="16.063" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
