<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 06:55:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 06:55:00</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">
FF202610304130655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.683" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.220" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="262.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="262.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.724" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.961" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="239.255" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.030" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.384" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.494" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.673" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.990" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.900" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 2.45 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 265.000 267.083 269.167 271.250 273.333 275.417 277.500 280.000 280.000 283.000 285.609 288.551 291.894 295.724
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 81 0 0 0 0 0 72 69 69 0 0 0 0 69
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="335">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.223 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.446 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.669 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.961 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0
</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 0.35313663 0.35250106 0.35157028 0.35057116 0.34928453 0.3478631 0.34616646 0.3443465 0.3422673 0.34000963 0.33751434 0.33479494 0.33186606 0.32867885 0.32525456 0.32161555 0.317726 0.31355846 0.30909485 0.30432728 0.29930958 0.29392707 0.28828594 0.28220767 0.27574506 0.26890284 0.2616694 0.2538704 0.24558467 0.23672593 0.22722165 0.21704012 0.20609051 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 0.20242217 0.2067943 0.21116646 0.21553859 0.21991074 0.22428289 0.22865503 0.23302718 0.23739931 0.24177146 0.2461436 0.25051573 0.25488788 0.25926003 0.26363218 0.26800433 0.27237645 0.2767486 0.28112075 0.2854929 0.28986502 0.29423717 0.29860932 0.30298147 0.30735362 0.31172574 0.3160979 0.32047004 0.32484218 0.32921433 0.33358645 0.3379586 0.34233075 0.3467029 0.35107502 0.354 0.36789 0.40944037 0.45180753 0.49609232 0.543019 0.59313434 0.6468104 0.70431304 0.76575965 0.8310931 0.9001306 0.97249514 1.0477874 1.1254826 1.205069 1.2860616 1.3680332 1.45058 1.5333765 1.6161406 1.6985955 1.780538 1.8617204 1.9419334 2.0209486 2.0984983 2.1743178 2.248065 2.3193672 2.3877788 2.4527962 2.5138388 2.5702665 2.6213624 2.6663735 2.704516 2.735043 2.7572896 2.7707193 2.775 2.774997 2.7728932 2.7670357 2.7576437 2.744937 2.7291348 2.7104552 2.6891115 2.665313 2.6392639 2.6111608 2.581194 2.5495462 2.516392 2.481898 2.4462223 2.409515 2.371917 2.333562 2.2945743 2.2550712 2.2151616 2.1749473 2.1345224 2.0939744 2.0533836 2.0128245 1.972365 1.9320674 1.8919884 1.8521799 1.8126886 1.7735566 1.7348219 1.6965185 1.6586764 1.6213222 1.5844793 1.5481682 1.5124062 1.4772084 1.4425874 1.4085532 1.3751146 1.3422775 1.3100469 1.2784258 1.2474159 1.2170177 1.1872301 1.1580515 1.1294788 1.1015084 1.0741358 1.0473555 1.0211619 0.99554837 0.9705081 0.94603366 0.9221173 0.89875096 0.87592626 0.8536346 0.8318672 0.8106152 0.7898693 0.7696205 0.7498594 0.7305768 0.7117633 0.6934097 0.67550653 0.6580446 0.64101464 0.6244075 0.608214 0.5924252 0.57703215 0.5620261 0.5473982 0.53313994 0.5192428 0.50569844 0.4924987 0.47963542 0.46710065 0.4548866 0.4429856 0.43139008 0.4200927 0.4090862 0.39836344 0.38791752 0.37774158 0.36782897 0.3581731 0.34876767 0.33960637 0.33068308 0.32199183 0.31352675 0.30528218 0.29725248 0.28943226 0.28181612 0.2743989 0.26717553 0.26014102 0.25329053 0.24661937 0.24012291 0.23379666 0.22763622 0.22163731 0.21579577 0.21010752 0.20456858 0.1991751 0.1939233 0.18880947 0.18383005 0.17898154 0.17426053 0.16966368 0.16518778 0.16082963 0.15658621 0.1524545 0.14843155 0.14451455 0.14070071 0.13698734 0.1333718 0.12985153 0.12642403 0.12308686 0.119837664 0.11667412 0.11359398 0.110595055 0.10767522 0.10483238 0.10206453 0.09936968 0.09674592 0.09419138 0.09170423 0.08928271 0.086925074 0.08462966 0.082394816 0.080218956 0.07810052 0.07603799 0.0740299 0.072074816 0.07017134 0.06831811 0.06651381 0.06475714 0.06304684 0.0613817 0.059760522 0.058182146 0.05664544 0.055149317 0.053692695 0.052274536 0.050893825

</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="2.775" PeakHeight="254.961" Num="5" zHalfNm="239.255" Error="0.666">
-38.438 -1.517 1.002 -0.591 0.252
</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="6515.223" A="-1.22524729E11" B="3.7816276E7" C="-2917.797" Error="0.0017"/>
<QuasiParabolic ID="2" StartDistance="6515.223" EndDistance="6550.446" A="0.0" B="2754.9458" C="-0.38281557" Error="0.056"/>
<QuasiParabolic ID="3" StartDistance="6550.446" EndDistance="6583.0" A="4.6542679E9" B="-1522757.2" C="124.03395" Error="0.056"/>
<QuasiParabolic ID="4" StartDistance="6583.0" EndDistance="6584.0" A="-1.52542878E12" B="4.6333616E8" C="-35183.492" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6584.0" EndDistance="6594.0" A="8.9070837E12" B="-2.70571392E9" C="205479.47" Error="0.0315"/>
<QuasiParabolic ID="6" StartDistance="6594.0" EndDistance="6616.0" A="1.28381857E13" B="-3.89804058E9" C="295889.47" Error="0.0605"/>
<QuasiParabolic ID="7" StartDistance="6616.0" EndDistance="6624.961" A="-4.1795614E13" B="1.26176174E10" C="-952270.94" Error="0.0104"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.669" Depth="0.154"/>
<TopsideChapman PeakHeight="254.961" PeakDensity="95541.25" PeakScaleHeight="11.673" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
