<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 23:40:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.07 (127) 23:40:00</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">
FF202612705072340001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.547" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.859" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="272.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="272.500" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="308.583" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="268.680" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="247.821" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.052" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.955" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.101" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.725" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.810" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.120" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="25">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 275.000 276.250 277.500 272.500 277.500 280.000 282.500 285.000 285.000 285.000 287.500 290.000 295.000 295.000 297.500 302.500 305.000 305.256 305.610 306.132 306.978 308.583 312.811 354.661
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 87 75 75 84 87 87 84 75 75 87 87 90 84 84 84 90 90 87 87 96 96 84 78 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="421">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.15466 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.30933 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.464 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 268.68 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0
</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 0.35313663 0.3524263 0.35157037 0.35049725 0.34928474 0.34779045 0.34616676 0.34427544 0.34219727 0.33994073 0.33744666 0.3347286 0.33173534 0.32855132 0.3251304 0.32149503 0.31755 0.31338868 0.3088764 0.30411837 0.29905987 0.2936909 0.28797248 0.28191575 0.2753961 0.2685118 0.2611856 0.25338802 0.2450722 0.23613699 0.2265734 0.21632291 0.20532407 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 0.20302556 0.20740621 0.21178685 0.2161675 0.22054812 0.22492877 0.22930941 0.23369005 0.2380707 0.24245134 0.24683198 0.25121263 0.25559327 0.2599739 0.26435456 0.2687352 0.27311584 0.2774965 0.2818771 0.28625774 0.2906384 0.29501903 0.29939967 0.30378032 0.30816096 0.3125416 0.31692225 0.3213029 0.32568353 0.33006418 0.33444482 0.33882546 0.3432061 0.34758675 0.3519674 0.354 0.37063923 0.40372363 0.43948227 0.4779366 0.51907206 0.5628866 0.60936546 0.65848637 0.7102474 0.7646299 0.8216313 0.8812183 0.9433695 1.008082 1.0752859 1.1449754 1.2170649 1.291486 1.3681649 1.4469903 1.5278147 1.6105042 1.6948974 1.7807913 1.8679562 1.9561757 2.0451732 2.1346676 2.2243795 2.31397 2.403111 2.4914863 2.578745 2.6645224 2.7484999 2.830324 2.9096508 2.9861567 3.0595396 3.12948 3.195707 3.2579498 3.3159735 3.3695402 3.4184368 3.4624877 3.501519 3.5353887 3.5639775 3.5871737 3.6049001 3.6170921 3.6237035 3.625 3.624854 3.6225495 3.6175337 3.6099234 3.599836 3.5873892 3.5727005 3.555886 3.5370615 3.51634 3.4938343 3.4696531 3.4439042 3.4166918 3.3881178 3.3582807 3.3272765 3.2951975 3.262133 3.2281685 3.193387 3.157868 3.121687 3.0849164 3.0476263 3.0098822 2.9717474 2.9332814 2.8945415 2.855581 2.8164513 2.7772002 2.737873 2.6985128 2.6591597 2.6198514 2.5806231 2.5415084 2.502538 2.4637406 2.4251432 2.386771 2.3486466 2.3107917 2.273226 2.2359674 2.1990328 2.1624372 2.1261945 2.0903172 2.0548167 2.0197031 1.9849858 1.9506725 1.9167706 1.883286 1.8502243 1.8175898 1.7853864 1.7536173 1.7222846 1.6913902 1.6609353 1.6309206 1.6013461 1.5722116 1.5435163 1.5152589 1.4874378 1.4600514 1.4330971 1.4065725 1.3804748 1.3548008 1.3295475 1.3047111 1.2802879 1.2562741 1.2326658 1.2094585 1.1866481 1.1642302 1.1422001 1.1205534 1.0992851 1.0783908 1.0578655 1.0377042 1.0179023 0.9984546 0.9793562 0.9606022 0.9421876 0.92410743 0.90635663 0.88893026 0.8718234 0.855031 0.8385482 0.8223701 0.80649185 0.79090863 0.7756155 0.76060784 0.7458809 0.7314299 0.7172503 0.70333743 0.6896868 0.6762939 0.66315424 0.65026355 0.63761735 0.6252114 0.61304146 0.60110337 0.589393 0.5779063 0.56663924 0.5555879 0.54474825 0.5341166 0.52368915 0.51346207 0.5034318 0.49359465 0.48394713 0.47448567 0.46520686 0.45610732 0.4471837 0.4384327 0.4298511 0.4214358 0.41318357 0.4050914 0.39715627 0.3893752 0.3817453 0.3742637 0.3669276 0.3597342 0.35268083 0.3457648 0.33898348 0.3323343 0.32581478 0.3194224 0.3131547 0.30700934 0.30098394 0.2950762 0.28928384 0.28360468 0.27803653 0.2725772 0.26722467 0.26197678 0.2568316 0.2517871 0.24684131 0.24199235 0.23723835 0.23257744 0.22800784 0.22352776 0.21913546 0.21482924 0.21060742 0.20646837 0.20241049 0.19843216 0.19453187 0.19070807 0.18695928 0.18328406 0.17968093 0.17614852 0.17268543 0.16929032 0.16596185 0.16269872 0.15949966 0.15636341 0.15328875 0.15027446 0.14731938 0.14442234 0.1415822 0.13879786 0.13606821 0.13339218 0.13076875 0.12819685 0.1256755 0.12320369 0.12078045 0.118404835 0.11607592 0.11379277 0.111554496 0.10936022 0.10720907 0.10510022 0.10303282 0.10100606 0.099019155 0.097071305 0.09516176 0.093289755 0.09145456 0.08965545 0.08789171 0.086162664 0.08446761 0.082805894 0.081176855 0.07957985 0.07801426 0.07647945 0.074974835 0.073499806 0.07205379 0.07063621 0.069246516 0.067884155 0.066548586 0.06523929 0.06395575 0.062697455 0.06146391 0.06025463 0.059069138 0.057906963 0.056767654 0.055650752 0.054555826 0.053482436 0.052430164 0.05139859 0.05038731

</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="3.625" PeakHeight="268.68" Num="5" zHalfNm="247.821" Error="0.363">
-53.713 0.69 -0.248 0.121 -0.066
</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="6515.155" A="-1.22999013E11" B="3.796266E7" C="-2929.0923" Error="0.00172"/>
<QuasiParabolic ID="2" StartDistance="6515.155" EndDistance="6550.309" A="0.0" B="1024.4485" C="-0.11721055" Error="0.0203"/>
<QuasiParabolic ID="3" StartDistance="6550.309" EndDistance="6584.0" A="2.31085773E10" B="-7140732.5" C="551.5966" Error="0.0203"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6592.0" A="6.7039485E12" B="-2.03655757E9" C="154668.9" Error="0.0273"/>
<QuasiParabolic ID="5" StartDistance="6592.0" EndDistance="6598.0" A="8.5464024E12" B="-2.59555456E9" C="197068.56" Error="0.00821"/>
<QuasiParabolic ID="6" StartDistance="6598.0" EndDistance="6609.0" A="1.67821317E13" B="-5.0919864E9" C="386249.53" Error="0.013"/>
<QuasiParabolic ID="7" StartDistance="6609.0" EndDistance="6625.0" A="1.19100764E13" B="-3.61761664E9" C="274706.94" Error="0.0293"/>
<QuasiParabolic ID="8" StartDistance="6625.0" EndDistance="6638.68" A="-3.556084E13" B="1.07132262E10" C="-806866.06" Error="0.00954"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.464" Depth="0.154"/>
<TopsideChapman PeakHeight="268.68" PeakDensity="163035.05" PeakScaleHeight="15.725" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
