<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-13 -133 21:35:00.000"
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: 75% PACIFIC flags: Multiple candidates for F2x cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.13 (133) 21:35:00</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">
FF202613305132135001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.762" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.696" 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="3.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="255.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.493" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.569" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="220.764" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.955" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.843" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.884" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.516" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.330" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.770" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 240.000 245.000 247.500 250.000 252.500 255.000 260.000 265.000 272.500 277.500 286.756 299.014 316.021 341.194
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 60 63 63 0 81 75 63 60 63 57 57 57 69
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="372">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.698 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.116 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.232 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.348 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.569 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21461065 0.25876316 0.29546276 0.32616517 0.35231966 0.37493208 0.3946521 0.4119308 0.4270818 0.4403427 0.45188236 0.4618305 0.47028968 0.47733676 0.48302978 0.48741487 0.49052516 0.4923822 0.493 0.49274963 0.49207065 0.4908941 0.48922515 0.48714212 0.48451325 0.48142222 0.47781512 0.47371164 0.46906736 0.4639107 0.4582085 0.45187306 0.44495517 0.43744984 0.4292469 0.42031994 0.4106648 0.40019843 0.38890794 0.3765939 0.3631855 0.34856415 0.33256882 0.3149944 0.29548243 0.2737098 0.24927184 0.22189325 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 0.20772853 0.21779174 0.22785492 0.23791812 0.24798131 0.2580445 0.2681077 0.2781709 0.28823408 0.2982973 0.3083605 0.3184237 0.3284869 0.33855006 0.34861326 0.35867646 0.36873966 0.37880287 0.38886607 0.39892924 0.40899244 0.41905564 0.42911884 0.43918204 0.4492452 0.45930842 0.46937162 0.47943482 0.48949802 0.493 0.52058387 0.56796074 0.6208261 0.6780752 0.73863006 0.8017475 0.86698586 0.93425363 1.0035998 1.0752093 1.1493237 1.2262286 1.3062469 1.3897091 1.4768624 1.567981 1.6632041 1.7625382 1.8657775 1.9724243 2.0816796 2.1923506 2.3029714 2.4119475 2.5176487 2.6186821 2.7139373 2.8026829 2.8845098 2.9592628 3.0270004 3.087896 3.1421924 3.1901634 3.2320857 3.2682111 3.29878 3.3239896 3.3440216 3.359006 3.369048 3.3742182 3.375 3.3747113 3.3718631 3.3660822 3.3575068 3.346276 3.3325288 3.3164039 3.2980382 3.2775671 3.2551231 3.2308369 3.2048352 3.1772416 3.1481762 3.1177552 3.0860908 3.053291 3.01946 2.984697 2.9490976 2.912753 2.87575 2.838171 2.8000948 2.7615957 2.7227442 2.6836069 2.6442466 2.604722 2.5650892 2.5254 2.485703 2.446044 2.4064658 2.3670075 2.3277063 2.288596 2.2497084 2.2110722 2.1727147 2.1346602 2.0969315 2.0595484 2.0225303 1.9858937 1.949654 1.9138247 1.8784178 1.8434443 1.8089136 1.7748338 1.7412119 1.7080541 1.6753651 1.6431491 1.6114093 1.5801479 1.5493664 1.5190657 1.4892461 1.4599072 1.4310478 1.4026666 1.3747616 1.3473303 1.3203701 1.2938776 1.2678493 1.2422816 1.21717 1.1925105 1.1682985 1.144529 1.1211971 1.0982977 1.0758256 1.0537753 1.0321413 1.0109181 0.9900999 0.9696811 0.9496557 0.930018 0.91076213 0.8918822 0.87337226 0.85522646 0.8374389 0.8200036 0.8029148 0.78616667 0.76975334 0.753669 0.737908 0.7224646 0.7073332 0.6925081 0.6779839 0.663755 0.6498161 0.6361617 0.6227866 0.6096855 0.59685326 0.58428484 0.5719752 0.55991924 0.5481123 0.53654945 0.5252259 0.5141371 0.5032784 0.4926452 0.48223317 0.47203788 0.46205503 0.4522804 0.4427098 0.43333918 0.4241645 0.41518182 0.40638727 0.397777 0.3893473 0.38109455 0.37301508 0.36510536 0.35736194 0.34978142 0.34236044 0.3350957 0.32798404 0.32102224 0.31420726 0.307536 0.30100557 0.294613 0.28835547 0.2822301 0.2762342 0.2703651 0.26462007 0.25899658 0.2534921 0.24810413 0.24283022 0.237668 0.23261513 0.22766931 0.22282831 0.21808991 0.21345198 0.20891239 0.20446907 0.20012002 0.19586322 0.19169676 0.18761872 0.18362723 0.17972049 0.17589669 0.1721541 0.16849098 0.16490567 0.1613965 0.1579619 0.15460028 0.15131007 0.1480898 0.14493796 0.14185312 0.13883385 0.13587876 0.1329865 0.13015574 0.12738517 0.1246735 0.122019514 0.11942197 0.116879664 0.11439144 0.111956134 0.10957264 0.10723985 0.10495669 0.1027221 0.10053506 0.09839455 0.09629959 0.094249204 0.09224246 0.09027841 0.08835616 0.08647481 0.084633514 0.082831405 0.081067644 0.079341434 0.077651955 0.07599845 0.07438013 0.07279626 0.07124612 0.06972896 0.06824411 0.066790864 0.065368555 0.06397653 0.06261414 0.061280753 0.05997576 0.058698542 0.05744852 0.056225117 0.055027757 0.053855892 0.05270898 0.051586486 0.050487895

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.493" PeakHeight="110.0" Num="3" Error="0.0">
-22.187 4.27 -0.385
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.493" EndFrequency="3.375" PeakHeight="239.569" Num="5" zHalfNm="220.764" Error="1.741">
-44.131 3.461 -2.469 1.357 -0.439
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.001" EndDistance="6480.001" A="-1.0649617E12" B="3.28691872E8" C="-25361.785" Error="0.0104"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6509.116" A="-4.26728227E11" B="1.3170624E8" C="-10162.275" Error="0.0105"/>
<QuasiParabolic ID="2" StartDistance="6509.116" EndDistance="6538.232" A="0.0" B="157.83794" C="0.015461215" Error="0.00995"/>
<QuasiParabolic ID="3" StartDistance="6538.232" EndDistance="6565.0" A="1.77660723E11" B="-5.4524164E7" C="4183.368" Error="0.00995"/>
<QuasiParabolic ID="4" StartDistance="6565.0" EndDistance="6566.0" A="-2.65902018E12" B="8.0965888E8" C="-61634.08" Error="3.3E-11"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6569.0" A="1.56469549E13" B="-4.7663309E9" C="362976.78" Error="0.0142"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6576.0" A="1.03688396E13" B="-3.15935437E9" C="240661.62" Error="0.00998"/>
<QuasiParabolic ID="7" StartDistance="6576.0" EndDistance="6593.0" A="2.31558024E13" B="-7.0483333E9" C="536356.5" Error="0.0331"/>
<QuasiParabolic ID="8" StartDistance="6593.0" EndDistance="6609.569" A="-3.15252361E13" B="9.5392717E9" C="-721614.44" Error="0.00357"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.348" Depth="0.293"/>
<TopsideChapman PeakHeight="239.569" PeakDensity="141322.89" PeakScaleHeight="14.516" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
