<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 05:40:00.000"
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" >
2026.04.13 (103) 05:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610304130540001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.513" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.121" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="275.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="275.000" 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="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="293.588" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="268.148" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="249.276" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.363" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.085" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.909" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.249" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.080" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="16">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 275.000 277.500 282.500 283.750 285.722 287.972 290.566 293.588 297.153 301.422 306.627 313.114 321.422 332.444 347.768
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 93 96 96 0 81 81 0 0 93 81 81 90 93 93 90
</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 10.9375 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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.56734 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.13467 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 219.702 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 268.148 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0
</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 0.35362422 0.35321164 0.35257575 0.35179353 0.3507929 0.34965166 0.34829983 0.346743 0.34505916 0.34311134 0.34098005 0.33874282 0.33620235 0.3335089 0.33054277 0.3274513 0.32405964 0.32045537 0.31660292 0.31253207 0.3082187 0.3035951 0.29871377 0.2935564 0.28802887 0.28214023 0.27600378 0.26936087 0.262418 0.25501198 0.24708788 0.23867276 0.2296466 0.22000566 0.20972931 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 0.20364428 0.20785569 0.2120671 0.2162785 0.2204899 0.22470132 0.22891273 0.23312414 0.23733555 0.24154696 0.24575837 0.24996977 0.25418118 0.2583926 0.262604 0.2668154 0.27102682 0.27523822 0.27944964 0.28366104 0.28787246 0.29208386 0.2962953 0.30050668 0.30471808 0.3089295 0.3131409 0.31735232 0.32156372 0.32577515 0.32998654 0.33419797 0.33840936 0.34262076 0.3468322 0.35104358 0.354 0.36472374 0.40215632 0.44182047 0.48374546 0.5279659 0.5745478 0.6235463 0.6750091 0.72901756 0.7856286 0.8449037 0.9068948 0.97163075 1.0391529 1.109452 1.1825228 1.2583463 1.3368347 1.417897 1.5014 1.5871805 1.6750402 1.7647145 1.8559014 1.9482839 2.0414996 2.1351619 2.228805 2.3220122 2.4142842 2.5051875 2.594196 2.6808786 2.7647667 2.845402 2.9223607 2.9952717 3.063742 3.1274304 3.1860616 3.2393277 3.286994 3.3288598 3.3647382 3.3944738 3.4179394 3.435046 3.4457247 3.449929 3.45 3.4488106 3.444464 3.4370725 3.4267864 3.4137564 3.3981318 3.3800623 3.3596945 3.3371735 3.312641 3.2862358 3.258093 3.2283442 3.1971157 3.1645305 3.130707 3.0957584 3.0597942 3.0229182 2.98523 2.9468246 2.9077919 2.868218 2.828184 2.7877662 2.7470374 2.7060657 2.6649156 2.623647 2.5823164 2.540977 2.4996777 2.4584646 2.4173806 2.376465 2.3357546 2.2952833 2.2550824 2.2151804 2.1756036 2.136376 2.0975192 2.0590532 2.0209959 1.983363 1.9461693 1.9094269 1.8731475 1.8373407 1.802015 1.7671775 1.7328342 1.6989902 1.6656495 1.632815 1.600489 1.5686727 1.5373665 1.5065707 1.4762841 1.4465058 1.4172335 1.3884649 1.3601973 1.3324273 1.3051511 1.2783649 1.2520642 1.2262446 1.2009009 1.1760281 1.1516211 1.1276741 1.1041816 1.0811378 1.0585366 1.0363722 1.0146383 0.9933288 0.9724374 0.9519577 0.9318835 0.91220844 0.8929261 0.87403005 0.855514 0.83737147 0.8195963 0.8021821 0.78512245 0.76841134 0.7520425 0.73600966 0.7203068 0.704928 0.68986714 0.6751184 0.6606758 0.6465338 0.63268644 0.6191282 0.60585356 0.592857 0.5801331 0.5676765 0.55548203 0.5435445 0.5318587 0.5204198 0.50922275 0.49826273 0.487535 0.47703484 0.46675766 0.4566989 0.4468541 0.43721893 0.42778906 0.41856027 0.40952843 0.40068948 0.39203945 0.38357437 0.37529042 0.36718383 0.3592509 0.35148802 0.3438916 0.33645818 0.32918432 0.32206666 0.31510195 0.30828694 0.30161843 0.2950934 0.28870878 0.28246158 0.2763489 0.2703679 0.26451576 0.25878975 0.25318718 0.24770544 0.24234195 0.23709416 0.23195964 0.22693594 0.2220207 0.2172116 0.21250637 0.20790279 0.20339866 0.19899188 0.19468035 0.19046201 0.18633488 0.18229699 0.17834643 0.1744813 0.1706998 0.1670001 0.16338046 0.15983914 0.15637447 0.15298477 0.14966846 0.14642394 0.14324966 0.14014411 0.1371058 0.13413328 0.13122515 0.12838 0.12559648 0.12287325 0.12020901 0.11760248 0.11505243 0.112557635 0.11011689 0.10772903 0.10539292 0.10310743 0.10087147 0.098683976 0.09654388 0.094450176 0.092401855 0.090397924 0.08843744 0.08651944 0.084643036 0.082807295 0.081011355 0.07925435 0.07753544 0.0758538 0.07420862 0.0725991 0.071024485 0.06948401 0.06797694 0.06650254 0.06506012 0.06364898 0.06226843 0.06091782 0.059596498 0.058303833 0.057039198 0.055801988 0.05459161 0.05340748 0.052249033 0.051115707 0.05000696

</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="3.45" PeakHeight="268.148" Num="5" zHalfNm="249.276" Error="0.798">
-48.549 0.109 -0.221 0.265 -0.05
</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="6516.567" A="-1.13721557E11" B="3.5099248E7" C="-2708.15" Error="0.00176"/>
<QuasiParabolic ID="2" StartDistance="6516.567" EndDistance="6553.135" A="0.0" B="3578.8667" C="-0.50915647" Error="0.0756"/>
<QuasiParabolic ID="3" StartDistance="6553.135" EndDistance="6584.0" A="-1.06490348E10" B="3141891.0" C="-231.43422" Error="0.0756"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6589.0" A="6.0765674E11" B="-1.84678816E8" C="14031.984" Error="0.0195"/>
<QuasiParabolic ID="5" StartDistance="6589.0" EndDistance="6602.0" A="8.4738772E12" B="-2.57236147E9" C="195219.02" Error="0.0564"/>
<QuasiParabolic ID="6" StartDistance="6602.0" EndDistance="6625.0" A="1.69931335E13" B="-5.153172E9" C="390675.75" Error="0.0415"/>
<QuasiParabolic ID="7" StartDistance="6625.0" EndDistance="6638.148" A="-3.8749182E13" B="1.16746967E10" C="-879352.06" Error="0.0118"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.702" Depth="0.154"/>
<TopsideChapman PeakHeight="268.148" PeakDensity="147673.7" PeakScaleHeight="14.249" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
