<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 07:30:00.000"
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" >
2026.04.15 (105) 07:30:00</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">
FF202610504150730001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.866" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.018" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="232.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="232.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="250.733" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="228.734" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.352" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.801" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="19.110" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.460" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.340" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" 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" >
2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
232.500 232.500 235.000 236.667 238.333 240.000 242.500 245.000 245.000 247.500 250.733 254.597 259.297 265.137 272.588 282.425
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 69 69 0 0 69 0 72 72 78 75 75 72 69 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 -4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="294">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 138.58333 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.16667 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.75 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 228.734 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0
</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 0.3533988 0.35268724 0.35168076 0.35038465 0.34873247 0.34680796 0.3446216 0.34204412 0.33923516 0.3360058 0.33251932 0.32860458 0.3243659 0.31978112 0.314722 0.3093164 0.3034716 0.29713094 0.29034886 0.28298154 0.27503994 0.26650268 0.25724816 0.24721296 0.23637795 0.22454801 0.21165071 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 0.2044898 0.20987755 0.2152653 0.22065306 0.22604081 0.23142858 0.23681633 0.24220408 0.24759184 0.2529796 0.25836736 0.2637551 0.26914287 0.27453062 0.27991837 0.28530613 0.29069388 0.29608163 0.3014694 0.30685714 0.3122449 0.31763265 0.3230204 0.32840815 0.3337959 0.3391837 0.34457144 0.3499592 0.354 0.3667302 0.41852817 0.47266826 0.5299649 0.59100497 0.6562041 0.7258649 0.8002012 0.8793175 0.9631984 1.0516998 1.1445838 1.2414529 1.3418152 1.4450749 1.5505472 1.65748 1.7650026 1.8722838 1.9784011 2.0824301 2.1834126 2.2804062 2.3724995 2.4587812 2.5383668 2.610417 2.674173 2.728915 2.7740338 2.8090124 2.8334389 2.8470252 2.85 2.8498251 2.8461173 2.837817 2.8252265 2.808649 2.7883859 2.7647326 2.7379794 2.7084072 2.6762877 2.6418812 2.6054375 2.5671933 2.527373 2.4861884 2.4438384 2.4005094 2.3563752 2.3115976 2.2663262 2.2206995 2.1748447 2.1288788 2.0829089 2.037032 1.9913366 1.9459027 1.9008025 1.8561003 1.8118541 1.7681148 1.7249277 1.6823322 1.640363 1.5990497 1.5584174 1.5184876 1.4792778 1.4408022 1.4030719 1.3660951 1.3298777 1.2944231 1.2597326 1.2258056 1.1926402 1.1602322 1.1285769 1.0976677 1.0674974 1.0380576 1.0093393 0.9813326 0.95402706 0.9274116 0.9014749 0.87620515 0.85159016 0.82761765 0.804275 0.7815495 0.7594285 0.73789907 0.71694833 0.6965635 0.6767317 0.65744025 0.63867646 0.62042785 0.602682 0.5854266 0.56864965 0.55233914 0.53648335 0.5210707 0.5060899 0.49152973 0.4773792 0.46362764 0.45026448 0.43727943 0.42466238 0.41240343 0.40049297 0.3889215 0.37767982 0.36675894 0.35615003 0.3458445 0.33583397 0.3261103 0.31666547 0.30749175 0.29858157 0.28992748 0.2815224 0.27335924 0.2654312 0.25773165 0.25025415 0.24299237 0.23594022 0.22909172 0.22244109 0.21598268 0.209711 0.20362075 0.1977067 0.19196384 0.18638724 0.18097214 0.17571393 0.17060806 0.16565019 0.16083604 0.15616147 0.15162249 0.14721516 0.14293571 0.13878042 0.13474573 0.13082814 0.1270243 0.12333088 0.11974472 0.1162627 0.11288181 0.10959913 0.10641181 0.10331708 0.100312285 0.09739479 0.09456208 0.091811694 0.08914125 0.08654842 0.084030956 0.081586674 0.07921345 0.076909214 0.074671976 0.07249979 0.07039076 0.06834306 0.06635489 0.06442455 0.06255034 0.060730636 0.05896385 0.05724845 0.05558294 0.053965874 0.05239584 0.05087147

</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="2.85" PeakHeight="228.734" Num="5" zHalfNm="215.352" Error="0.654">
-32.934 -0.146 0.002 0.055 0.039
</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="6508.583" A="-1.85709953E11" B="5.7317888E7" C="-4422.5513" Error="0.00149"/>
<QuasiParabolic ID="2" StartDistance="6508.583" EndDistance="6537.167" A="0.0" B="-2490.745" C="0.4227064" Error="0.0423"/>
<QuasiParabolic ID="3" StartDistance="6537.167" EndDistance="6539.0" A="9.0303533E12" B="-2.76228378E9" C="211237.95" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6539.0" EndDistance="6551.0" A="-4.88676E11" B="1.4917944E8" C="-11385.023" Error="0.158"/>
<QuasiParabolic ID="5" StartDistance="6551.0" EndDistance="6566.0" A="5.24787384E11" B="-1.60227792E8" C="12230.243" Error="0.131"/>
<QuasiParabolic ID="6" StartDistance="6566.0" EndDistance="6581.0" A="1.80147538E13" B="-5.4876616E9" C="417913.62" Error="0.0926"/>
<QuasiParabolic ID="7" StartDistance="6581.0" EndDistance="6590.0" A="2.01271626E13" B="-6.1296338E9" C="466688.25" Error="0.0313"/>
<QuasiParabolic ID="8" StartDistance="6590.0" EndDistance="6598.734" A="-5.2872423E13" B="1.60250204E10" C="-1214241.5" Error="0.00926"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="85.75" Depth="0.154"/>
<TopsideChapman PeakHeight="228.734" PeakDensity="100775.44" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
