<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-15 -135 02:45:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.15 (135) 02:45:00</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">
FF202613505150245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.551" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.365" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="272.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="272.500" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="272.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="271.252" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.363" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.887" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.085" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.789" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.300" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.350" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.050" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="11">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
272.500 277.285 282.571 288.442 295.000 302.374 310.725 320.263 331.258 344.074 359.202
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 66 93 93 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="396">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.53233 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.06467 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.597 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 271.252 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0
</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 0.35369936 0.35321155 0.35265046 0.35186782 0.3509409 0.34987223 0.3485916 0.34710422 0.34548807 0.3436766 0.3416772 0.33949807 0.33714813 0.3345699 0.3317773 0.32884964 0.32567245 0.32226676 0.31865487 0.31480208 0.31068197 0.30633146 0.30173656 0.29691797 0.29175973 0.28624877 0.28047922 0.27430966 0.26781482 0.2609605 0.25360832 0.24583407 0.2375535 0.22871523 0.219265 0.2092186 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 0.2 0.2 0.2 0.2 0.2 0.2038378 0.20794092 0.21204405 0.21614718 0.22025031 0.22435343 0.22845657 0.2325597 0.23666282 0.24076596 0.24486908 0.2489722 0.25307533 0.25717846 0.2612816 0.26538473 0.26948786 0.27359098 0.2776941 0.28179723 0.28590038 0.2900035 0.29410663 0.29820976 0.30231288 0.306416 0.31051913 0.31462228 0.3187254 0.32282853 0.32693166 0.33103478 0.3351379 0.33924106 0.34334418 0.3474473 0.35155043 0.354 0.36723423 0.40178147 0.43867737 0.4777992 0.5190719 0.5624341 0.6078719 0.6553747 0.70495796 0.7566683 0.8105412 0.8666171 0.9249552 0.98559266 1.0485756 1.1139364 1.1816883 1.251813 1.3243023 1.3990886 1.4760731 1.5551461 1.6361138 1.7187752 1.8028535 1.8880327 1.9739543 2.060198 2.146358 2.2319374 2.316445 2.399413 2.4803195 2.5586941 2.634082 2.706048 2.7741835 2.8381574 2.8976216 2.9523058 3.0019686 3.0464 3.085428 3.1189032 3.146721 3.1687753 3.1850052 3.1953616 3.199812 3.2 3.1991544 3.1954505 3.1889274 3.179723 3.167975 3.1538212 3.1373985 3.1188421 3.0982854 3.0758588 3.05169 3.0259037 2.9986205 2.9699576 2.9400284 2.9089417 2.876803 2.843712 2.809766 2.7750568 2.739672 2.7036953 2.6672058 2.630279 2.592986 2.5553942 2.5175667 2.479563 2.4414394 2.4032483 2.365039 2.3268576 2.2887464 2.2507453 2.2128918 2.1752198 2.1377609 2.1005442 2.063597 2.0269434 1.9906063 1.9546059 1.918961 1.8836883 1.8488029 1.8143185 1.780247 1.746599 1.7133838 1.6806097 1.6482835 1.616411 1.584997 1.5540456 1.5235596 1.4935414 1.4639921 1.4349128 1.4063035 1.3781635 1.3504919 1.323287 1.2965468 1.2702688 1.2444501 1.2190874 1.1941772 1.1697155 1.1456983 1.1221211 1.0989794 1.0762681 1.0539825 1.0321172 1.0106672 0.9896269 0.9689908 0.94875336 0.92890894 0.9094518 0.8903761 0.8716761 0.853346 0.83537984 0.8177719 0.80051625 0.78360707 0.7670385 0.7508048 0.7349001 0.7193188 0.7040551 0.6891033 0.67445785 0.6601132 0.6460638 0.63230425 0.61882913 0.6056331 0.5927109 0.5800573 0.56766725 0.5555356 0.5436574 0.5320278 0.5206418 0.50949466 0.49858174 0.48789835 0.47743994 0.46720204 0.4571802 0.4473701 0.4377675 0.42836818 0.41916803 0.41016296 0.401349 0.39272228 0.38427895 0.37601522 0.3679274 0.36001185 0.35226503 0.34468344 0.33726364 0.33000228 0.32289603 0.3159417 0.30913603 0.30247602 0.29595852 0.2895806 0.28333932 0.27723175 0.27125517 0.26540673 0.25968376 0.2540836 0.24860366 0.24324138 0.2379943 0.23285994 0.22783592 0.22291991 0.2181096 0.21340272 0.20879711 0.20429058 0.19988103 0.1955664 0.19134465 0.1872138 0.1831719 0.17921706 0.17534742 0.17156115 0.16785647 0.16423163 0.16068491 0.15721466 0.1538192 0.15049697 0.14724638 0.14406589 0.14095399 0.13790923 0.13493013 0.13201532 0.1291634 0.12637301 0.12364284 0.12097158 0.11835798 0.11580079 0.113298796 0.11085081 0.10845567 0.10611225 0.103819415 0.10157608 0.09938119 0.0972337 0.095132574 0.093076825 0.091065474 0.08909756 0.08717215 0.08528833 0.0834452 0.081641875 0.0798775 0.07815125 0.076462284 0.0748098 0.07319302 0.071611166 0.07006349 0.068549246 0.06706772 0.06561821 0.064200014 0.062812455 0.06145488 0.06012664 0.058827102 0.057555642 0.056311656 0.055094555 0.05390375 0.052738678 0.051598784 0.050483525

</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="3.2" PeakHeight="271.252" Num="5" zHalfNm="252.363" Error="1.312">
-48.287 -0.337 -0.313 0.402 -0.12
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6517.532" A="-1.07978056E11" B="3.3326562E7" C="-2571.3687" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6517.532" EndDistance="6555.065" A="0.0" B="-1148.6322" C="0.21627814" Error="0.0262"/>
<QuasiParabolic ID="3" StartDistance="6555.065" EndDistance="6592.0" A="5.2865421E10" B="-1.6186856E7" C="1239.0883" Error="0.0372"/>
<QuasiParabolic ID="4" StartDistance="6592.0" EndDistance="6599.0" A="8.1483247E12" B="-2.47233357E9" C="187536.62" Error="0.0773"/>
<QuasiParabolic ID="5" StartDistance="6599.0" EndDistance="6606.0" A="6.8241242E12" B="-2.07099981E9" C="157127.94" Error="0.0276"/>
<QuasiParabolic ID="6" StartDistance="6606.0" EndDistance="6628.0" A="1.49009979E13" B="-4.5163141E9" C="342210.78" Error="0.0381"/>
<QuasiParabolic ID="7" StartDistance="6628.0" EndDistance="6641.252" A="-3.31098274E13" B="9.9709594E9" C="-750673.5" Error="0.0114"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.597" Depth="0.154"/>
<TopsideChapman PeakHeight="271.252" PeakDensity="127047.15" PeakScaleHeight="14.3" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
