<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 01:30:00.000"
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" >
2026.05.02 (122) 01:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205020130001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.859" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.736" 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="3.725" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="217.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="217.500" 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="3.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="250.689" 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="225.634" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.337" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.399" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.742" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.763" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.291" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.250" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.780" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="36">
<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 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 223.750 225.000 226.458 227.917 229.375 230.833 232.292 233.750 235.208 236.667 238.125 239.583 241.042 242.500 243.750 245.000 247.688 250.689 254.058 257.870 262.216 267.219 273.038 279.892
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 0 60 60 57 60 72 72 69 69 72 69 0 69 0 0 0 0 0 0 0 0 0 0 0 93 0 93 0 0 96 96 96 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 -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 -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="337">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 160.16667 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 225.634 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0
</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 0.353812 0.35324875 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.3812299 0.42406327 0.47413412 0.5302647 0.5909963 0.6551913 0.72223365 0.7919623 0.86448324 0.9400357 1.0189791 1.101712 1.1886225 1.280119 1.3765268 1.4781067 1.5848583 1.6965822 1.8126867 1.9321283 2.053395 2.1746962 2.294016 2.4094486 2.5193543 2.6225574 2.718257 2.806083 2.8859103 2.9578528 3.0221202 3.0789886 3.1287513 3.1716993 3.2080972 3.2381854 3.262162 3.280192 3.2923954 3.2988563 3.3 3.299757 3.2966692 3.2901707 3.2804375 3.2676473 3.2519767 3.2336018 3.212696 3.18943 3.1639707 3.1364808 3.1071188 3.076038 3.0433855 3.0093045 2.9739308 2.9373958 2.8998237 2.8613336 2.8220382 2.7820446 2.7414541 2.7003624 2.6588593 2.6170292 2.5749516 2.5327008 2.490346 2.447952 2.4055786 2.363282 2.321113 2.2791202 2.237347 2.1958334 2.1546168 2.1137307 2.0732057 2.0330698 1.9933479 1.9540627 1.9152344 1.8768809 1.8390181 1.8016598 1.7648181 1.7285033 1.6927242 1.6574882 1.622801 1.5886673 1.5550905 1.522073 1.4896163 1.4577204 1.4263853 1.3956094 1.3653909 1.3357272 1.3066152 1.2780509 1.2500303 1.2225485 1.1956005 1.1691808 1.1432836 1.1179029 1.0930322 1.0686651 1.0447949 1.0214145 0.99851704 0.9760952 0.95414174 0.93264925 0.9116104 0.8910177 0.87086356 0.85114056 0.8318411 0.8129578 0.79448307 0.7764095 0.75872964 0.74143606 0.7245215 0.7079787 0.6918004 0.67597955 0.66050905 0.6453819 0.63059133 0.61613035 0.60199237 0.58817077 0.574659 0.5614506 0.5485393 0.5359188 0.52358294 0.5115258 0.49974138 0.48822382 0.47696745 0.4659666 0.45521578 0.44470954 0.43444252 0.42440954 0.41460544 0.4050252 0.39566395 0.38651672 0.37757888 0.36884573 0.36031276 0.35197544 0.34382948 0.33587053 0.32809442 0.32049707 0.31307444 0.30582258 0.29873765 0.29181588 0.28505358 0.27844715 0.271993 0.26568776 0.25952798 0.2535104 0.24763171 0.2418888 0.23627856 0.23079796 0.22544403 0.22021389 0.21510468 0.21011366 0.2052381 0.20047536 0.19582285 0.19127804 0.18683845 0.18250167 0.17826533 0.17412712 0.17008477 0.1661361 0.16227892 0.15851115 0.1548307 0.15123558 0.1477238 0.14429346 0.14094266 0.13766956 0.1344724 0.13134938 0.12829882 0.12531903 0.12240837 0.11956525 0.116788104 0.1140754 0.11142565 0.1088374 0.10630923 0.10383974 0.10142757 0.0990714 0.09676992 0.09452188 0.09232603 0.090181164 0.0880861 0.086039685 0.08404078 0.08208831 0.08018117 0.07831831 0.076498725 0.074721396 0.07298534 0.071289614 0.06963327 0.0680154 0.0664351 0.06489151 0.06338377 0.06191106 0.06047256 0.05906747 0.057695024 0.05635446 0.055045035 0.05376603 0.05251674 0.05129647 0.05010455

</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="3.3" PeakHeight="225.634" Num="5" zHalfNm="208.337" Error="0.984">
-42.759 3.954 -2.398 1.303 -0.484
</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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="679.9395" C="-0.06451142" Error="0.00971"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6532.0" A="-1.92551898E12" B="5.894928E8" C="-45117.887" Error="0.0343"/>
<QuasiParabolic ID="4" StartDistance="6532.0" EndDistance="6547.0" A="1.63746791E11" B="-5.02089E7" C="3848.8677" Error="0.0367"/>
<QuasiParabolic ID="5" StartDistance="6547.0" EndDistance="6554.0" A="-1.8746735E11" B="5.7081196E7" C="-4344.969" Error="0.0133"/>
<QuasiParabolic ID="6" StartDistance="6554.0" EndDistance="6565.0" A="1.11414021E13" B="-3.40000435E9" C="259393.62" Error="0.0227"/>
<QuasiParabolic ID="7" StartDistance="6565.0" EndDistance="6580.0" A="2.82575965E13" B="-8.6143816E9" C="656528.25" Error="0.0225"/>
<QuasiParabolic ID="8" StartDistance="6580.0" EndDistance="6595.634" A="-3.5319655E13" B="1.07100109E10" C="-811890.6" Error="0.00639"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="225.634" PeakDensity="135111.66" PeakScaleHeight="13.291" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
