<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-04 -035 04:55:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 40% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.04 (035) 04:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202603502040455001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.547" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.181" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.175" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.175" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="252.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="252.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="315.121" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="269.809" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="250.901" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.282" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.828" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.969" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.757" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.580" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="79">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 275.000 280.000 270.000 270.833 271.667 272.500 272.500 271.250 270.000 272.500 272.500 269.500 266.500 263.500 260.500 257.500 255.000 252.500 258.750 265.000 260.000 258.750 257.500 259.205 260.909 262.614 264.318 266.023 267.727 269.432 271.136 272.841 274.545 276.250 277.955 279.659 281.364 283.068 284.773 286.477 288.182 289.886 291.591 293.295 295.000 300.000 301.250 302.500 297.500 298.214 298.929 299.643 300.357 301.071 301.786 302.500 303.214 303.929 304.643 305.357 306.071 306.786 307.500 305.625 303.750 301.875 300.000 305.000 302.500 300.000 297.500 300.000 302.500 305.000 308.333 311.667 312.483 315.121
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 84 0 0 84 90 90 0 90 90 90 78 0 78 78 78 78 0 0 93 93 0 0 0 0 0 0 0 0 0 102 0 0 0 0 0 105 102 102 0 0 0 0 105 0 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 99 63 0 0 0 0 0 0 0 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="407">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.25 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.5 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 209.75 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 269.809 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0
</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 0.35354906 0.35306174 0.352277 0.35134757 0.35012823 0.34869877 0.34706512 0.34523398 0.343142 0.34080055 0.3382224 0.33542153 0.33234677 0.3290187 0.32545936 0.32156938 0.31744388 0.31299958 0.30822688 0.30312735 0.29771414 0.29194102 0.28570086 0.27913103 0.27213752 0.26456448 0.256557 0.2479685 0.23874018 0.22879031 0.21807829 0.20660281 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 0.20231579 0.20694737 0.21157895 0.21621053 0.22084211 0.22547369 0.23010527 0.23473684 0.23936842 0.244 0.24863158 0.25326315 0.25789472 0.2625263 0.26715788 0.27178946 0.27642104 0.28105262 0.2856842 0.29031578 0.29494736 0.29957893 0.3042105 0.3088421 0.31347367 0.31810525 0.32273683 0.3273684 0.332 0.33663157 0.34126315 0.34589472 0.3505263 0.354 0.36862364 0.41588002 0.4575023 0.4980178 0.53908175 0.5816094 0.6262818 0.6736468 0.72418946 0.7783384 0.8364721 0.89886695 0.9657225 1.0370578 1.1127679 1.1925399 1.2759913 1.3625611 1.4517192 1.5429122 1.6356127 1.7293885 1.8238952 1.9188695 2.0140955 2.1094124 2.2047539 2.3000443 2.3952427 2.4903672 2.585403 2.6803823 2.7753341 2.8702552 2.9652293 3.0602398 3.1553714 3.250613 3.3460257 3.4416168 3.5374012 3.6334043 3.7295992 3.8259885 3.9225185 4.01916 4.115779 4.212257 4.3083835 4.403881 4.4983563 4.591259 4.681872 4.7691774 4.8518353 4.9280624 4.9956155 5.0518184 5.093729 5.118633 5.125 5.1249037 5.121317 5.1127305 5.099392 5.0815487 5.059449 5.03334 5.0034657 4.9700675 4.9333806 4.8936367 4.851061 4.8058705 4.7582774 4.708486 4.6566925 4.6030855 4.547845 4.491144 4.4331474 4.3740115 4.3138847 4.2529078 4.191214 4.1289287 4.0661707 4.0030503 3.9396727 3.876135 3.8125286 3.7489386 3.6854439 3.622118 3.5590293 3.4962404 3.4338093 3.3717895 3.3102298 3.2491748 3.1886656 3.1287386 3.0694277 3.0107627 2.9527707 2.8954756 2.8388987 2.7830584 2.7279713 2.6736512 2.6201098 2.567357 2.515401 2.4642477 2.4139018 2.364367 2.3156447 2.267736 2.2206397 2.1743546 2.1288779 2.0842063 2.0403354 1.9972599 1.9549742 1.9134719 1.8727461 1.8327891 1.7935932 1.75515 1.7174506 1.6804862 1.6442474 1.6087247 1.5739083 1.5397882 1.5063545 1.4735967 1.4415045 1.4100676 1.3792754 1.3491176 1.3195837 1.2906628 1.2623446 1.2346187 1.2074746 1.1809018 1.1548901 1.1294291 1.1045088 1.0801188 1.0562494 1.0328904 1.0100323 0.9876653 0.9657797 0.9443663 0.9234155 0.9029183 0.8828655 0.8632482 0.8440577 0.82528514 0.8069221 0.78896016 0.77139103 0.7542066 0.7373989 0.7209601 0.7048823 0.68915814 0.67378014 0.6587409 0.64403325 0.6296502 0.6155848 0.60183024 0.58838 0.57522744 0.5623662 0.54978997 0.5374926 0.5254681 0.51371056 0.5022142 0.4909733 0.47998232 0.4692358 0.45872843 0.448455 0.43841037 0.4285895 0.41898754 0.40959963 0.4004211 0.39144737 0.3826739 0.37409624 0.3657101 0.35751128 0.34949562 0.3416591 0.3339977 0.32650757 0.31918493 0.31202602 0.3050273 0.29818514 0.29149607 0.2849567 0.2785637 0.27231386 0.26620394 0.26023084 0.2543915 0.24868296 0.24310231 0.23764668 0.2323133 0.22709945 0.22200245 0.21701968 0.21214859 0.20738672 0.2027316 0.19818085 0.19373216 0.18938321 0.18513179 0.18097572 0.17691287 0.17294116 0.16905853 0.16526301 0.16155264 0.1579255 0.15437976 0.15091355 0.14752513 0.14421275 0.14097469 0.1378093 0.13471495 0.13169004 0.12873302 0.12584238 0.1230166 0.12025426 0.11755392 0.114914194 0.11233372 0.10981118 0.10734526 0.1049347 0.10257825 0.10027471 0.098022886 0.09582161 0.09366976 0.09156622 0.089509904 0.08749977 0.08553475 0.083613865 0.0817361 0.0799005 0.07810612 0.07635203 0.07463732 0.07296113 0.07132256 0.06972079 0.06815499 0.06662435 0.06512808 0.06366541 0.062235586 0.060837872 0.05947154 0.058135897 0.056830242 0.055553913 0.054306243 0.053086594 0.051894333 0.050728846

</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="5.125" PeakHeight="269.809" Num="5" zHalfNm="250.901" Error="1.831">
-56.022 -8.158 6.023 -3.154 1.252
</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="6513.25" A="-1.37420415E11" B="4.2413708E7" C="-3272.5374" Error="0.00164"/>
<QuasiParabolic ID="2" StartDistance="6513.25" EndDistance="6546.5" A="0.0" B="3554.0535" C="-0.50563735" Error="0.0686"/>
<QuasiParabolic ID="3" StartDistance="6546.5" EndDistance="6579.0" A="8.4822554E8" B="-371967.84" C="37.06445" Error="0.0686"/>
<QuasiParabolic ID="4" StartDistance="6579.0" EndDistance="6581.0" A="1.93279904E13" B="-5.875776E9" C="446564.2" Error="3.97E-4"/>
<QuasiParabolic ID="5" StartDistance="6581.0" EndDistance="6586.0" A="-4.10203423E11" B="1.22763184E8" C="-9182.587" Error="0.033"/>
<QuasiParabolic ID="6" StartDistance="6586.0" EndDistance="6625.0" A="1.77794282E13" B="-5.4009631E9" C="410171.06" Error="0.0692"/>
<QuasiParabolic ID="7" StartDistance="6625.0" EndDistance="6635.0" A="7.7010389E12" B="-2.35843072E9" C="180545.98" Error="0.00785"/>
<QuasiParabolic ID="8" StartDistance="6635.0" EndDistance="6639.809" A="-1.6990285E14" B="5.117703E10" C="-3853776.5" Error="0.00213"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="99.75" Depth="0.154"/>
<TopsideChapman PeakHeight="269.809" PeakDensity="325876.25" PeakScaleHeight="13.757" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
