<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 10:40:00.000"
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="20.0">
<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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 85% PACIFIC flags: Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.07 (127) 10:40:00</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">
FF202612705071040001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.016" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="21.385" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="202.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="202.500" 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="5.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="243.087" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.827" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="195.255" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="169.624" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.035" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="33.424" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.212" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.426" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="43.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 203.750 202.500 205.000 205.000 205.000 207.500 206.250 205.000 207.500 207.500 207.500 207.500 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 222.500 222.500 222.500 225.000 225.000 227.500 227.500 230.000 230.000 230.000 232.500 235.000 235.000 237.500 238.181 239.009 240.039 241.353 243.087 245.484 249.009 254.710 265.495 293.637
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
45 51 54 57 69 69 84 84 87 90 90 90 90 90 90 90 90 90 81 81 93 93 81 81 81 81 81 81 81 78 78 78 78 75 60 57 84 84 87 87 114 111 87 87 87 87 111 114 90 90 87 90 81 81 57 63 54 54 81 66 48 51 54 54 75 72 75 75 48 48 60 60 54 51 75 75 78 78 90 93 90 93 102 102 90 93 90 93 90 90 87 87 87 87 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="432">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.813 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 119.74934 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 129.49867 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.248 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.255 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21613693 0.537641 0.82181305 0.9885057 1.1167313 1.2232022 1.3146342 1.3945194 1.4649321 1.5272177 1.58232 1.6308931 1.6734324 1.7103058 1.7418013 1.7681347 1.7894799 1.8059614 1.8176697 1.8246708 1.827 1.8255385 1.8210571 1.8135003 1.8029869 1.7894361 1.7727312 1.7527994 1.729696 1.7031605 1.681 1.681 1.681 1.681 1.681 1.681 1.681 1.681 1.681 1.681 1.681 1.681 1.6885077 1.703483 1.7184584 1.7334338 1.7484092 1.7633846 1.77836 1.7933353 1.8083107 1.823286 1.827 1.8887818 1.9647828 2.0358214 2.1033254 2.168215 2.2311354 2.2925775 2.3529034 2.4123921 2.471279 2.5297697 2.5880322 2.6461973 2.7044036 2.762785 2.8214197 2.880422 2.939899 2.9999213 3.0605886 3.1219704 3.184176 3.247271 3.3113284 3.3764372 3.4426594 3.5100703 3.5787506 3.6487355 3.7200973 3.7928538 3.8670344 3.94264 4.01963 4.097949 4.1774483 4.257978 4.3392878 4.421049 4.502829 4.5841603 4.6644325 4.742992 4.8191 4.8920326 4.961058 5.0254765 5.084663 5.1380873 5.1853175 5.2260013 5.259893 5.2868156 5.306647 5.319309 5.3247647 5.325 5.324241 5.320883 5.314925 5.306459 5.295576 5.2823677 5.2669253 5.249341 5.2297053 5.2081075 5.1846375 5.159383 5.13243 5.1038647 5.0737705 5.0422297 5.0093217 4.9751263 4.939719 4.9031754 4.8655677 4.8269663 4.7874403 4.7470555 4.7058764 4.6639657 4.621383 4.5781875 4.534434 4.490176 4.445467 4.400356 4.354891 4.309118 4.2630806 4.216821 4.1703806 4.1237965 4.0771065 4.0303454 3.9835465 3.9367416 3.889961 3.8432336 3.7965863 3.750045 3.7036343 3.6573772 3.6112957 3.56541 3.5197396 3.474303 3.429117 3.3841975 3.3395598 3.2952178 3.2511847 3.2074723 3.1640923 3.121055 3.0783696 3.0360458 2.994091 2.9525132 2.9113188 2.8705142 2.8301048 2.7900956 2.750491 2.711295 2.6725106 2.634141 2.5961888 2.558656 2.521544 2.4848542 2.4485874 2.4127443 2.3773248 2.342329 2.307757 2.2736073 2.2398794 2.206572 2.1736841 2.1412137 2.1091592 2.0775185 2.0462897 2.01547 1.9850575 1.9550492 1.9254425 1.8962344 1.8674221 1.8390024 1.8109722 1.783328 1.7560669 1.729185 1.7026792 1.6765455 1.6507807 1.625381 1.6003426 1.575662 1.5513352 1.5273585 1.503728 1.48044 1.4574907 1.4348758 1.4125919 1.390635 1.369001 1.3476863 1.3266869 1.3059988 1.2856183 1.2655414 1.2457644 1.2262834 1.2070947 1.1881943 1.1695786 1.1512438 1.1331861 1.1154019 1.0978874 1.0806391 1.0636533 1.0469265 1.030455 1.0142353 0.99826384 0.98253727 0.9670521 0.951805 0.93679243 0.92201126 0.907458 0.89312947 0.8790224 0.8651337 0.85146004 0.83799845 0.8247457 0.8116988 0.79885477 0.78621054 0.77376324 0.7615099 0.74944764 0.7375737 0.7258852 0.7143794 0.7030535 0.69190484 0.6809308 0.6701287 0.659496 0.6490301 0.63872844 0.62858856 0.618608 0.6087843 0.5991152 0.5895982 0.580231 0.57101136 0.5619369 0.5530056 0.544215 0.5355632 0.5270478 0.51866686 0.5104183 0.5023 0.49431002 0.48644632 0.47870696 0.47109 0.4635935 0.4562157 0.44895464 0.44180858 0.43477568 0.42785418 0.42104235 0.4143385 0.4077409 0.4012479 0.39485788 0.3885692 0.3823803 0.3762896 0.37029555 0.36439666 0.35859144 0.35287836 0.34725603 0.341723 0.33627787 0.33091924 0.32564577 0.32045612 0.31534895 0.31032294 0.30537686 0.30050942 0.2957194 0.29100555 0.28636667 0.28180158 0.27730912 0.27288815 0.2685375 0.2642561 0.26004285 0.25589663 0.25181642 0.24780118 0.24384984 0.23996143 0.23613492 0.23236935 0.22866374 0.22501715 0.22142862 0.21789727 0.21442215 0.2110024 0.20763713 0.20432547 0.20106657 0.1978596 0.19470371 0.19159813 0.18854204 0.18553464 0.18257517 0.17966287 0.17679699 0.17397678 0.17120153 0.1684705 0.16578302 0.16313837 0.1605359 0.1579749 0.15545474 0.15297475 0.1505343 0.14813277 0.14576952 0.14344397 0.14115548 0.1389035 0.13668741 0.13450667 0.13236071 0.13024896 0.12817091 0.12612598 0.12411367 0.122133456 0.12018482 0.11826726 0.11638029 0.11452341 0.11269615 0.11089803 0.1091286 0.10738739 0.105673954 0.10398785 0.10232864 0.1006959 0.0990892 0.09750813 0.09595229 0.09442126 0.092914656 0.09143209 0.08997317 0.08853753 0.08712479 0.08573458 0.08436656 0.08302036 0.08169564 0.08039205 0.07910926 0.07784694 0.07660475 0.07538238 0.074179515 0.07299584 0.071831055 0.07068485 0.06955694 0.068447016 0.067354806 0.066280015 0.06522238 0.06418162 0.06315746 0.062149648 0.061157912 0.060182 0.059221663 0.058276646 0.05734671 0.056431606 0.05553111 0.05464498 0.05377299 0.05291491 0.052070525 0.051239613 0.05042196

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.827" PeakHeight="110.0" Num="3" Error="0.0">
-28.782 10.737 -2.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.827" EndFrequency="5.325" PeakHeight="195.255" Num="5" zHalfNm="169.624" Error="1.321">
-48.664 -9.427 1.035 1.274 -0.225
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.837" EndDistance="6480.001" A="-1.43882946E13" B="4.4408315E9" C="-342653.4" Error="0.0102"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6489.749" A="-9.5485795E12" B="2.94709248E9" C="-227395.77" Error="3.51E-4"/>
<QuasiParabolic ID="2" StartDistance="6489.749" EndDistance="6499.499" A="0.0" B="98244.81" C="-12.313692" Error="0.00839"/>
<QuasiParabolic ID="3" StartDistance="6499.499" EndDistance="6508.0" A="-4.38151361E12" B="1.34509069E9" C="-103229.72" Error="0.0108"/>
<QuasiParabolic ID="4" StartDistance="6508.0" EndDistance="6510.0" A="1.0733432E14" B="-3.29867571E10" C="2534435.2" Error="0.00938"/>
<QuasiParabolic ID="5" StartDistance="6510.0" EndDistance="6529.0" A="3.49866086E12" B="-1.08640141E9" C="84331.164" Error="0.0159"/>
<QuasiParabolic ID="6" StartDistance="6529.0" EndDistance="6554.0" A="1.70743877E13" B="-5.2449946E9" C="402802.06" Error="0.0126"/>
<QuasiParabolic ID="7" StartDistance="6554.0" EndDistance="6565.255" A="-6.6182657E13" B="2.01614889E10" C="-1535440.5" Error="0.00437"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="29.248" Depth="0.146"/>
<TopsideChapman PeakHeight="195.255" PeakDensity="351806.75" PeakScaleHeight="19.426" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
