<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 00:05:00.000"
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: 65% PACIFIC flags: Multiple candidates for F2x 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" >
2026.05.26 (146) 00:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202614605260005001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.640" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.831" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="3.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="289.974" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.600" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.600" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="255.737" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.959" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.896" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.935" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.937" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.118" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.780" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.110" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="38">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 250.833 251.667 252.500 255.000 255.000 255.000 256.250 257.500 257.500 260.000 260.833 261.667 262.500 262.500 265.000 267.500 267.500 268.333 269.167 270.000 272.500 272.500 273.750 275.000 276.250 277.500 278.168 278.955 279.895 281.038 282.459 284.273 286.667 289.974 294.838 302.702 317.570
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 66 66 66 66 0 60 48 42 0 0 78 78 78 81 81 0 0 90 93 93 0 0 0 84 87 0 84 87 90 0 0 57 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 -10.9375 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="381">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 255.737 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0
</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 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.39142627 0.43052065 0.47164753 0.5151281 0.56122154 0.61015356 0.66213053 0.71731424 0.7758577 0.83783674 0.90332854 0.9723346 1.0448314 1.1207283 1.1998789 1.2821358 1.3672495 1.4549937 1.5450448 1.637115 1.7308525 1.8259038 1.9218953 2.018469 2.1152248 2.2117684 2.3077419 2.4027288 2.4963312 2.5881543 2.6778133 2.7649157 2.8490705 2.92989 3.0069938 3.0800123 3.1485844 3.2123618 3.2710006 3.3241909 3.3716478 3.4131026 3.4483097 3.477064 3.4992032 3.5145862 3.5231223 3.525 3.524881 3.5222967 3.5164537 3.5075095 3.4956212 3.4809475 3.4636452 3.44387 3.4217756 3.3975122 3.3712277 3.3430657 3.3131664 3.2816648 3.2486925 3.2143755 3.1788356 3.142189 3.1045477 3.0660183 3.0267024 2.986697 2.9460936 2.9049792 2.8634367 2.8215432 2.7793725 2.736993 2.69447 2.6518636 2.609231 2.5666246 2.524094 2.4816852 2.4394405 2.3973992 2.355598 2.31407 2.272846 2.2319546 2.191421 2.1512687 2.1115193 2.0721915 2.0333025 1.9948679 1.9569012 1.9194144 1.882418 1.8459213 1.8099316 1.7744558 1.7394991 1.7050657 1.671159 1.6377813 1.604934 1.5726178 1.5408325 1.5095775 1.4788514 1.4486521 1.4189773 1.3898237 1.3611879 1.3330663 1.3054545 1.278348 1.2517418 1.2256309 1.2000098 1.174873 1.1502147 1.1260289 1.1023095 1.0790502 1.0562446 1.0338866 1.0119692 0.99048615 0.96943074 0.94879633 0.9285761 0.9087635 0.88935184 0.87033427 0.8517043 0.8334551 0.8155802 0.7980729 0.7809267 0.7641351 0.7476917 0.73159003 0.7158238 0.7003868 0.6852728 0.6704757 0.65598947 0.6418081 0.62792563 0.61433643 0.6010346 0.58801454 0.5752708 0.56279767 0.5505899 0.5386422 0.5269493 0.51550597 0.50430727 0.49334818 0.48262382 0.47212934 0.46186006 0.45181134 0.4419786 0.4323574 0.42294332 0.41373208 0.40471944 0.3959012 0.38727337 0.37883186 0.37057284 0.3624924 0.35458684 0.3468524 0.33928546 0.3318825 0.32464004 0.31755465 0.31062296 0.30384177 0.2972078 0.29071793 0.28436905 0.2781582 0.27208236 0.26613867 0.2603243 0.25463644 0.2490724 0.24362949 0.23830512 0.23309672 0.22800179 0.22301789 0.21814261 0.21337363 0.20870861 0.20414534 0.1996816 0.19531523 0.19104412 0.18686622 0.1827795 0.17878199 0.17487173 0.17104685 0.16730548 0.16364583 0.1600661 0.15656455 0.1531395 0.14978927 0.14651224 0.1433068 0.14017144 0.13710457 0.13410474 0.13117047 0.12830034 0.12549296 0.122746944 0.12006097 0.11743372 0.11486391 0.1123503 0.10989165 0.10748677 0.10513448 0.10283364 0.10058312 0.098381825 0.09622868 0.094122626 0.09206265 0.09004773 0.0880769 0.08614917 0.08426362 0.08241932 0.08061538 0.078850895 0.07712503 0.07543692 0.073785745 0.072170705 0.070591 0.069045864 0.06753454 0.06605629 0.064610384 0.06319612 0.061812814 0.060459778 0.05913635 0.057841882 0.05657575 0.055337325 0.054126002 0.052941192 0.051782314 0.0506488

</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="3.525" PeakHeight="255.737" Num="5" zHalfNm="236.959" Error="0.403">
-48.008 0.361 -0.148 -0.024 0.082
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="506.03763" C="-0.03767299" Error="0.00901"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6575.0" A="3.579356E10" B="-1.1022498E7" C="848.57336" Error="0.00901"/>
<QuasiParabolic ID="4" StartDistance="6575.0" EndDistance="6576.0" A="-1.72401584E12" B="5.24280736E8" C="-39858.895" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6576.0" EndDistance="6582.0" A="7.2794647E12" B="-2.21400397E9" C="168344.02" Error="0.0215"/>
<QuasiParabolic ID="6" StartDistance="6582.0" EndDistance="6585.0" A="4.884925E12" B="-1.48640154E9" C="113071.88" Error="0.0027"/>
<QuasiParabolic ID="7" StartDistance="6585.0" EndDistance="6613.0" A="1.63172518E13" B="-4.9586345E9" C="376719.03" Error="0.038"/>
<QuasiParabolic ID="8" StartDistance="6613.0" EndDistance="6625.0" A="-4.0443966E13" B="1.22079222E10" C="-921221.1" Error="0.0106"/>
<QuasiParabolic ID="9" StartDistance="6625.0" EndDistance="6625.737" A="-4.6980076E13" B="1.41810862E10" C="-1070139.2" Error="1.88E-11"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="255.737" PeakDensity="154164.08" PeakScaleHeight="14.118" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
