<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-13 -133 01:50:00.000"
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" >
2026.05.13 (133) 01:50:00</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">
FF202613305130150001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.530" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.944" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.525" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="275.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="275.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="300.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="273.955" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.074" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.254" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="32.754" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.904" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.878" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="13">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
275.000 278.500 282.000 285.500 289.000 292.500 295.000 297.500 300.000 310.000 326.030 355.505 427.563
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 0 0 0 0 51 60 60 57 81 84 81 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -10.9375 -10.9375 -10.9375 -10.9375 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="450">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.21867 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.43733 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.656 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 273.955 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0
</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 0.34703198 0.34534484 0.34353513 0.34146762 0.33922264 0.33680937 0.33423752 0.33138627 0.32840315 0.32517424 0.32165983 0.3180065 0.31405947 0.30991033 0.3054828 0.30077007 0.29580045 0.2905146 0.28499 0.27905566 0.27276364 0.2661197 0.25904927 0.2515816 0.24359754 0.23503982 0.22597189 0.21630852 0.20589273 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 0.20232815 0.20646586 0.21060356 0.21474127 0.21887898 0.2230167 0.2271544 0.23129211 0.23542982 0.23956753 0.24370524 0.24784295 0.25198066 0.25611836 0.26025608 0.26439378 0.2685315 0.2726692 0.27680692 0.28094462 0.2850823 0.28922004 0.29335773 0.29749545 0.30163315 0.30577087 0.30990857 0.3140463 0.318184 0.3223217 0.3264594 0.33059713 0.33473483 0.33887255 0.34301025 0.34714794 0.35128567 0.354 0.3611231 0.3846572 0.41314226 0.44728866 0.48706758 0.531473 0.57896465 0.6281844 0.678329 0.7290823 0.7804179 0.8324648 0.8854545 0.93962187 0.9952664 1.0526732 1.1121693 1.1740767 1.2387726 1.3066063 1.3779606 1.4532026 1.5326201 1.6164228 1.7045963 1.7968446 1.8924297 1.9901062 2.0882483 2.1849525 2.2783759 2.3670373 2.4499452 2.5265996 2.5968747 2.6609554 2.7191253 2.7717676 2.8192775 2.8620439 2.9004083 2.9346948 2.96518 2.9921126 3.0156932 3.036106 3.0534992 3.068005 3.0797162 3.0887203 3.095076 3.0988271 3.1 3.099998 3.0989783 3.0961342 3.091533 3.0852432 3.077333 3.067871 3.0569255 3.044564 3.0308542 3.0158625 2.999654 2.9822938 2.963845 2.9443698 2.9239285 2.9025807 2.880384 2.8573947 2.833667 2.809254 2.7842069 2.7585752 2.7324069 2.7057476 2.6786423 2.651133 2.6232617 2.5950668 2.5665867 2.537857 2.5089126 2.4797864 2.4505098 2.4211125 2.3916235 2.3620694 2.3324764 2.3028686 2.2732692 2.2437 2.2141817 2.1847336 2.1553745 2.1261213 2.0969903 2.0679967 2.0391548 2.010478 1.9819784 1.953668 1.9255574 1.8976566 1.8699746 1.8425204 1.8153013 1.7883248 1.7615975 1.7351254 1.7089137 1.6829674 1.657291 1.6318883 1.6067626 1.5819172 1.5573545 1.5330768 1.5090859 1.4853833 1.4619701 1.4388474 1.4160156 1.393475 1.3712258 1.3492676 1.3276001 1.3062227 1.2851344 1.2643343 1.2438213 1.2235938 1.2036505 1.1839896 1.1646096 1.1455083 1.1266838 1.1081342 1.089857 1.07185 1.0541108 1.0366371 1.0194262 1.0024757 0.9857829 0.96934515 0.9531598 0.93722403 0.9215351 0.9060901 0.8908863 0.8759209 0.8611909 0.8466935 0.83242583 0.8183849 0.8045679 0.7909719 0.7775939 0.7644312 0.7514807 0.73873967 0.7262052 0.7138744 0.70174444 0.68981254 0.67807573 0.6665314 0.65517664 0.64400876 0.633025 0.62222266 0.611599 0.6011514 0.59087723 0.58077383 0.5708386 0.561069 0.55146253 0.5420166 0.5327288 0.5235966 0.5146176 0.50578946 0.49710974 0.4885761 0.48018628 0.47193795 0.46382886 0.4558568 0.44801956 0.44031498 0.4327409 0.42529526 0.41797593 0.41078088 0.40370807 0.39675552 0.38992125 0.38320336 0.37659988 0.370109 0.36372876 0.35745746 0.3512932 0.34523425 0.33927882 0.33342525 0.32767183 0.32201684 0.3164587 0.31099576 0.30562642 0.30034915 0.29516235 0.29006454 0.2850542 0.28012988 0.27529013 0.2705335 0.2658586 0.26126406 0.2567485 0.2523106 0.24794905 0.24366254 0.2394498 0.23530957 0.23124063 0.22724177 0.2233118 0.21944952 0.2156538 0.21192351 0.20825753 0.20465475 0.2011141 0.19763452 0.19421497 0.1908544 0.18755184 0.18430626 0.18111672 0.17798221 0.17490184 0.17187466 0.16889974 0.16597623 0.1631032 0.1602798 0.15750518 0.15477851 0.15209894 0.1494657 0.14687796 0.14433496 0.1418359 0.13938005 0.13696668 0.13459502 0.13226438 0.12997402 0.12772329 0.1255115 0.12333795 0.12120199 0.11910299 0.11704031 0.1150133 0.11302137 0.111063905 0.10914031 0.10725 0.1053924 0.103566945 0.10177308 0.100010276 0.09827797 0.096575655 0.094902806 0.09325891 0.09164347 0.090055995 0.08849601 0.08696302 0.08545658 0.08397622 0.08252148 0.08109194 0.07968715 0.078306675 0.07695011 0.07561704 0.07430705 0.07301974 0.07175473 0.070511624 0.06929005 0.06808963 0.06690999 0.06575079 0.064611666 0.06349227 0.062392257 0.061311297 0.060249064 0.059205227 0.05817947 0.057171483 0.05618095 0.05520758 0.054251067 0.053311124 0.052387465 0.0514798 0.050587863

</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="273.955" Num="5" zHalfNm="251.074" Error="2.573">
-56.158 7.16 -4.966 2.859 -1.194
</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="6517.219" A="-1.09798408E11" B="3.3888396E7" C="-2614.7202" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.219" EndDistance="6554.437" A="0.0" B="1025.1053" C="-0.11725654" Error="0.0214"/>
<QuasiParabolic ID="3" StartDistance="6554.437" EndDistance="6586.0" A="1.98065828E10" B="-6125131.5" C="473.5005" Error="0.0214"/>
<QuasiParabolic ID="4" StartDistance="6586.0" EndDistance="6591.0" A="2.48021074E11" B="-7.5428048E7" C="5734.882" Error="0.00852"/>
<QuasiParabolic ID="5" StartDistance="6591.0" EndDistance="6607.0" A="6.7079756E12" B="-2.0356631E9" C="154440.31" Error="0.0294"/>
<QuasiParabolic ID="6" StartDistance="6607.0" EndDistance="6621.0" A="2.06237849E13" B="-6.2481075E9" C="473226.78" Error="0.0396"/>
<QuasiParabolic ID="7" StartDistance="6621.0" EndDistance="6643.955" A="-1.75321981E13" B="5.2776387E9" C="-397166.38" Error="0.013"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.656" Depth="0.154"/>
<TopsideChapman PeakHeight="273.955" PeakDensity="119230.766" PeakScaleHeight="17.878" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
