<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 01:30:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.09 (099) 01:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090130001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.882" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.887" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.725" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="205.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="205.000" 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="4.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="253.080" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="224.109" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="202.989" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.066" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.080" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.580" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.164" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.620" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.240" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="91">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
205.000 205.000 205.000 206.250 207.500 207.500 207.500 207.500 207.500 207.500 208.125 208.750 209.375 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 213.750 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 227.500 230.000 230.000 230.000 230.000 232.500 232.500 235.000 235.000 237.500 237.500 237.500 240.000 242.500 242.500 243.598 244.875 246.379 248.176 250.363 253.080 256.546 261.123 267.445 276.745 291.775 320.192
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 84 81 0 72 0 0 0 57 57 0 0 0 81 84 69 72 72 75 78 78 78 0 75 75 75 78 0 57 0 48 0 57 0 72 75 75 99 99 99 99 102 102 102 102 102 102 99 99 96 96 99 99 99 99 87 87 84 90 90 87 84 84 84 87 69 69 69 66 69 72 93 96 105 108 96 99 93 93 105 102 84 0 87 93 90 90 84 84 84 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 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 -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="392">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.16667 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 154.33333 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.5 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 224.109 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0
</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 0.35376927 0.35314414 0.35199788 0.3504718 0.34844965 0.34601614 0.3430702 0.33964738 0.3357888 0.33131224 0.32640406 0.3208713 0.31475306 0.30806717 0.30063042 0.2924594 0.2835998 0.27378997 0.26306203 0.251229 0.23810448 0.22358955 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.22306015 0.22915037 0.23524061 0.24133083 0.24742106 0.25351128 0.2596015 0.26569173 0.27178195 0.27787217 0.2839624 0.29005262 0.29614285 0.30223307 0.3083233 0.31441355 0.32050377 0.326594 0.33268422 0.33877444 0.34486467 0.3509549 0.354 0.37361842 0.41565844 0.4611787 0.5100145 0.5621041 0.617533 0.67647934 0.73923117 0.80614525 0.87767285 0.9543135 1.0366849 1.1254127 1.2212362 1.3248821 1.4370962 1.558482 1.6894196 1.8298049 1.9790108 2.1355186 2.2969687 2.4604945 2.6229026 2.7812867 2.9333084 3.0773857 3.2125778 3.3385105 3.4551616 3.5627563 3.6616662 3.7522874 3.835082 3.9104545 3.9788249 4.0405364 4.095926 4.1452937 4.188874 4.226908 4.2595706 4.2870297 4.3094134 4.3268285 4.339359 4.3470616 4.349972 4.35 4.348724 4.344329 4.336923 4.326637 4.313599 4.2979403 4.2797894 4.2592754 4.2365246 4.211662 4.18481 4.15609 4.1256185 4.093511 4.0598793 4.0248313 3.9884727 3.950905 3.9122264 3.8725317 3.8319118 3.7904544 3.748243 3.7053587 3.6618776 3.6178737 3.5734167 3.5285733 3.4834065 3.4379768 3.392341 3.346553 3.3006642 3.254722 3.2087727 3.162858 3.1170187 3.0712924 3.025714 2.9803166 2.935131 2.890186 2.845508 2.801122 2.7570505 2.713315 2.6699345 2.6269274 2.5843096 2.5420961 2.5003006 2.4589355 2.4180114 2.3775387 2.3375256 2.2979803 2.2589097 2.220319 2.182214 2.1445982 2.1074753 2.0708482 2.0347185 1.9990878 1.963957 1.9293262 1.8951951 1.8615631 1.8284289 1.7957909 1.7636471 1.7319951 1.7008322 1.6701555 1.6399617 1.6102473 1.5810083 1.5522408 1.5239409 1.4961039 1.4687254 1.4418007 1.4153249 1.3892932 1.3637006 1.3385417 1.3138117 1.289505 1.2656163 1.2421403 1.2190716 1.1964047 1.1741341 1.1522543 1.13076 1.1096454 1.088905 1.0685334 1.0485252 1.0288749 1.0095769 0.9906259 0.9720165 0.9537434 0.93580115 0.9181846 0.90088844 0.8839075 0.8672366 0.8508707 0.8348048 0.81903374 0.80355275 0.78835684 0.77344126 0.75880116 0.7444319 0.7303288 0.7164873 0.7029028 0.68957084 0.676487 0.66364706 0.6510466 0.63868135 0.6265472 0.6146401 0.602956 0.5914908 0.5802406 0.56920165 0.55837005 0.547742 0.537314 0.5270822 0.51704323 0.50719345 0.49752942 0.48804778 0.47874516 0.46961832 0.46066394 0.45187894 0.44326013 0.43480447 0.42650893 0.41837054 0.4103864 0.40255368 0.39486948 0.3873311 0.37993577 0.37268087 0.36556378 0.3585819 0.3517327 0.3450137 0.33842248 0.33195662 0.32561377 0.31939164 0.3132879 0.30730042 0.30142692 0.2956653 0.29001343 0.28446928 0.27903077 0.27369592 0.26846278 0.26332942 0.25829396 0.25335455 0.24850935 0.24375659 0.23909453 0.23452145 0.23003563 0.22563545 0.22131929 0.21708553 0.2129326 0.20885898 0.20486318 0.2009437 0.19709907 0.19332792 0.18962881 0.18600038 0.18244128 0.1789502 0.17552584 0.17216693 0.16887224 0.1656405 0.16247056 0.15936123 0.15631135 0.15331978 0.1503854 0.14750715 0.14468393 0.1419147 0.13919844 0.13653412 0.13392077 0.1313574 0.12884307 0.12637684 0.123957776 0.121585 0.11925761 0.11697475 0.114735566 0.112539224 0.110384904 0.10827181 0.106199145 0.10416614 0.10217204 0.1002161 0.09829758 0.09641578 0.094569996 0.09275953 0.09098372 0.089241885 0.08753339 0.0858576 0.084213875 0.082601614 0.08102021 0.07946908 0.07794764 0.07645531 0.074991554 0.07355581 0.072147556 0.070766255 0.06941139 0.06808247 0.06677897 0.06550044 0.06424638 0.063016325 0.061809815 0.060626402 0.059465647 0.05832711 0.057210367 0.056115005 0.055040613 0.053986788 0.05295314 0.05193928 0.050944827

</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="4.35" PeakHeight="224.109" Num="5" zHalfNm="202.989" Error="0.386">
-52.409 8.05 -4.821 1.943 -0.372
</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="6502.167" A="-2.79250174E11" B="8.6188328E7" C="-6650.2085" Error="0.00132"/>
<QuasiParabolic ID="2" StartDistance="6502.167" EndDistance="6524.333" A="0.0" B="-5455.7886" C="0.8870952" Error="0.0607"/>
<QuasiParabolic ID="3" StartDistance="6524.333" EndDistance="6541.0" A="2.17191629E11" B="-6.6626648E7" C="5109.718" Error="0.0607"/>
<QuasiParabolic ID="4" StartDistance="6541.0" EndDistance="6544.0" A="-1.23628133E12" B="3.77792544E8" C="-28862.09" Error="0.00537"/>
<QuasiParabolic ID="5" StartDistance="6544.0" EndDistance="6550.0" A="7.1405027E12" B="-2.18234931E9" C="166747.77" Error="0.0737"/>
<QuasiParabolic ID="6" StartDistance="6550.0" EndDistance="6559.0" A="1.33208904E13" B="-4.06949043E9" C="310804.34" Error="0.043"/>
<QuasiParabolic ID="7" StartDistance="6559.0" EndDistance="6572.0" A="5.4767749E13" B="-1.67076547E10" C="1274225.9" Error="0.0143"/>
<QuasiParabolic ID="8" StartDistance="6572.0" EndDistance="6594.109" A="-3.9847884E13" B="1.20859044E10" C="-916397.9" Error="0.00618"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="66.5" Depth="0.135"/>
<TopsideChapman PeakHeight="224.109" PeakDensity="234770.47" PeakScaleHeight="16.164" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
