<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 22:45:00.000"
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: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.06 (126) 22:45:00</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">
FF202612605062245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.597" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.770" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="285.667" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.678" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.868" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.617" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.579" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.908" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.458" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.700" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.070" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="21">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 252.500 255.000 257.500 260.000 262.500 265.000 267.500 269.310 271.313 273.539 276.031 278.837 282.022 285.667 289.879 294.804 300.638 307.659 316.268 327.076
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 84 87 0 75 99 99 99 99 99 99 0 96 0 0 0 0 0 72 75 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 -10.9375 -1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="370">
<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 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.678 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0
</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 0.3929527 0.4337189 0.47647882 0.5213604 0.5685269 0.618115 0.670256 0.7250949 0.7827473 0.84332955 0.90697366 0.97374904 1.0437413 1.1170139 1.193583 1.2734594 1.3565856 1.442885 1.5322195 1.6244015 1.7191887 1.8162801 1.9152992 2.0158467 2.1174314 2.219558 2.321631 2.4231079 2.523372 2.6218114 2.7178369 2.8108356 2.9002762 2.985596 3.0663087 3.1419446 3.2120914 3.2763774 3.3344789 3.3860834 3.4309645 3.4688969 3.4997165 3.5232806 3.5394943 3.5482836 3.55 3.5498025 3.5467236 3.5400548 3.5299788 3.5166793 3.5003395 3.4811423 3.4592671 3.4348917 3.4081895 3.3793302 3.348478 3.315793 3.2814295 3.245536 3.2082553 3.1697242 3.1300733 3.0894277 3.0479057 3.0056198 2.9626768 2.9191775 2.875217 2.8308845 2.786264 2.7414346 2.6964698 2.6514382 2.6064043 2.561427 2.5165622 2.4718606 2.4273694 2.383132 2.339188 2.2955747 2.2523243 2.2094681 2.1670327 2.1250434 2.083522 2.0424888 2.001961 1.9619545 1.9224827 1.8835574 1.8451887 1.8073851 1.7701535 1.7334996 1.6974279 1.6619414 1.6270423 1.5927316 1.5590096 1.5258753 1.4933276 1.4613642 1.4299821 1.3991778 1.3689475 1.3392867 1.3101902 1.2816529 1.253669 1.2262324 1.1993368 1.1729755 1.1471419 1.1218289 1.0970293 1.0727358 1.0489409 1.025637 1.0028167 0.980472 0.9585954 0.937179 0.9162151 0.89569587 0.8756135 0.8559603 0.83672845 0.8179103 0.7994982 0.78148454 0.76386184 0.7466225 0.7297593 0.71326476 0.6971317 0.681353 0.66592157 0.6508304 0.63607264 0.6216415 0.6075303 0.5937325 0.58024144 0.56705093 0.55415463 0.54154634 0.52922 0.5171696 0.5053893 0.4938733 0.482616 0.47161186 0.46085533 0.4503411 0.44006395 0.4300187 0.42020026 0.41060373 0.40122423 0.39205697 0.38309732 0.37434068 0.36578256 0.3574186 0.34924448 0.341256 0.33344898 0.32581943 0.3183634 0.311077 0.30395642 0.29699796 0.29019803 0.283553 0.27705944 0.2707139 0.2645131 0.2584538 0.25253272 0.24674681 0.241093 0.23556831 0.23016982 0.22489466 0.21974005 0.21470326 0.20978162 0.2049725 0.20027338 0.19568174 0.19119513 0.1868112 0.18252756 0.17834197 0.17425218 0.17025602 0.16635135 0.16253608 0.1588082 0.15516569 0.15160662 0.14812906 0.14473118 0.14141114 0.13816719 0.13499756 0.13190058 0.12887456 0.12591791 0.12302902 0.120206356 0.1174484 0.11475367 0.112120725 0.109548144 0.10703455 0.10457859 0.10217895 0.099834345 0.09754351 0.095305204 0.093118235 0.090981424 0.08889363 0.08685372 0.0848606 0.082913205 0.081010476 0.0791514 0.07733496 0.075560205 0.073826164 0.0721319 0.07047651 0.06885909 0.067278795 0.06573475 0.064226136 0.06275213 0.06131195 0.05990481 0.05852996 0.057186663 0.055874184 0.054591827 0.053338893 0.05211471 0.05091862

</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="3.55" PeakHeight="254.678" Num="5" zHalfNm="236.868" Error="0.965">
-46.406 -0.267 -0.303 0.333 -0.035
</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="-1940.435" C="0.33797535" Error="0.0379"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6570.0" A="7.6407136E10" B="-2.3404902E7" C="1792.3678" Error="0.0379"/>
<QuasiParabolic ID="4" StartDistance="6570.0" EndDistance="6576.0" A="-1.13228784E11" B="3.4322928E7" C="-2600.922" Error="0.00298"/>
<QuasiParabolic ID="5" StartDistance="6576.0" EndDistance="6579.0" A="6.6951646E12" B="-2.03635622E9" C="154841.23" Error="0.017"/>
<QuasiParabolic ID="6" StartDistance="6579.0" EndDistance="6588.0" A="7.5902322E12" B="-2.30845466E9" C="175520.55" Error="0.023"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6608.0" A="2.01511938E13" B="-6.1217398E9" C="464932.0" Error="0.037"/>
<QuasiParabolic ID="8" StartDistance="6608.0" EndDistance="6616.0" A="-9.8051597E12" B="2.94495283E9" C="-221107.11" Error="0.00576"/>
<QuasiParabolic ID="9" StartDistance="6616.0" EndDistance="6624.678" A="-4.8288212E13" B="1.45782825E10" C="-1100288.6" Error="0.00235"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="254.678" PeakDensity="156358.56" PeakScaleHeight="13.458" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
