<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 01:25:00.000"
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" >
2026.05.19 (139) 01:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905190125001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.781" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.666" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="253.277" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.031" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.312" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.433" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.501" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.718" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.035" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.580" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.540" 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" >
2.975 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 3.325 3.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 242.500 242.500 244.132 245.976 248.074 250.483 253.277 256.559 260.466 265.198 271.044 278.453 288.146 301.374 320.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 87 84 75 78 78 90 93 93 93 93 96 87 0 90 84
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="331">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.33333 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.66667 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.031 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0
</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 0.35347393 0.35283697 0.35190412 0.35075444 0.34931904 0.34760568 0.34569573 0.3434548 0.34089813 0.338043 0.33497614 0.33158195 0.3278234 0.3237977 0.31935477 0.31466332 0.30954042 0.30405807 0.29813874 0.29176548 0.28499955 0.27773643 0.26987928 0.2613832 0.2523016 0.2425206 0.23193197 0.22042523 0.20793872 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 0.20169231 0.20676923 0.21184616 0.21692307 0.222 0.22707692 0.23215385 0.23723076 0.2423077 0.24738462 0.25246155 0.25753847 0.26261538 0.2676923 0.27276924 0.27784616 0.28292307 0.288 0.29307693 0.29815385 0.30323076 0.30830768 0.31338462 0.31846154 0.32353845 0.3286154 0.3336923 0.33876923 0.34384614 0.3489231 0.354 0.39497235 0.44263265 0.4962785 0.5549218 0.6177232 0.68417907 0.75413364 0.8276296 0.90487564 0.9861827 1.0719187 1.1624705 1.2582016 1.3594146 1.4663308 1.5789151 1.6968776 1.8195955 1.9459538 2.0744123 2.2030883 2.329897 2.4528334 2.5701265 2.6803913 2.7826676 2.876369 2.9612432 3.0372198 3.1044185 3.163026 3.2132616 3.2553496 3.2895033 3.315915 3.3347342 3.3460717 3.3499923 3.35 3.347915 3.3415449 3.3311284 3.3169074 3.2991245 3.2780192 3.2538285 3.2267845 3.197113 3.165034 3.1307597 3.0944943 3.0564342 3.0167665 2.97567 2.9333146 2.8898606 2.8454602 2.8002558 2.7543821 2.707965 2.6611216 2.613962 2.5665874 2.5190928 2.4715655 2.4240859 2.376728 2.3295603 2.2826445 2.2360375 2.1897905 2.1439505 2.098559 2.0536537 2.0092685 1.9654332 1.9221741 1.8795141 1.8374734 1.796069 1.7553157 1.7152252 1.6758078 1.6370711 1.5990211 1.561662 1.5249962 1.489025 1.4537481 1.4191641 1.3852702 1.3520633 1.3195387 1.2876911 1.2565147 1.2260026 1.1961477 1.1669424 1.1383781 1.1104467 1.083139 1.0564457 1.0303575 1.0048646 0.9799572 0.95562524 0.93185866 0.9086472 0.88598067 0.86384875 0.8422412 0.8211478 0.8005582 0.78046227 0.7608499 0.741711 0.7230357 0.70481396 0.68703616 0.6696925 0.65277356 0.6362699 0.62017226 0.60447145 0.58915854 0.5742246 0.559661 0.5454591 0.5316105 0.518107 0.50494045 0.49210286 0.47958654 0.46738374 0.455487 0.443889 0.43258253 0.42156053 0.4108161 0.40034252 0.3901332 0.38018167 0.37048158 0.3610268 0.35181123 0.34282905 0.33407444 0.3255418 0.31722558 0.30912042 0.3012211 0.29352242 0.28601944 0.27870724 0.27158102 0.26463616 0.2578681 0.25127238 0.2448447 0.2385808 0.23247656 0.22652796 0.22073106 0.21508205 0.20957719 0.20421281 0.19898538 0.19389142 0.18892755 0.18409047 0.17937696 0.17478389 0.1703082 0.1659469 0.1616971 0.15755594 0.15352067 0.1495886 0.1457571 0.1420236 0.13838561 0.1348407 0.13138647 0.12802064 0.12474096 0.1215452 0.11843124 0.115396984 0.11244041 0.10955951 0.10675238 0.104017116 0.10135189 0.098754905 0.09622443 0.093758754 0.09135622 0.08901522 0.086734176 0.084511556 0.08234587 0.08023565 0.07817949 0.07617601 0.074223846 0.07232169 0.07046826 0.06866232 0.06690265 0.065188065 0.06351741 0.061889555 0.060303412 0.05875791 0.057252005 0.05578469 0.054354973 0.052961893 0.05160451 0.05028191

</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="3.35" PeakHeight="239.031" Num="5" zHalfNm="223.312" Error="1.343">
-39.434 2.554 -1.818 1.006 -0.339
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="14" 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="6510.333" A="-1.64983013E11" B="5.0920684E7" C="-3928.9397" Error="0.00156"/>
<QuasiParabolic ID="2" StartDistance="6510.333" EndDistance="6540.667" A="0.0" B="32.251965" C="0.03506901" Error="5.74E-4"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6541.0" A="-6.6112722E12" B="2.02143872E9" C="-154516.9" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6541.0" EndDistance="6543.0" A="8.0951981E11" B="-2.47569696E8" C="18928.162" Error="0.00974"/>
<QuasiParabolic ID="5" StartDistance="6543.0" EndDistance="6545.0" A="-3.63235901E11" B="1.10906752E8" C="-8465.729" Error="0.00888"/>
<QuasiParabolic ID="6" StartDistance="6545.0" EndDistance="6570.0" A="5.8463322E10" B="-1.7954742E7" C="1378.541" Error="0.00978"/>
<QuasiParabolic ID="7" StartDistance="6570.0" EndDistance="6573.0" A="1.30400492E13" B="-3.96973133E9" C="302122.56" Error="0.00616"/>
<QuasiParabolic ID="8" StartDistance="6573.0" EndDistance="6577.0" A="1.05793265E13" B="-3.22099456E9" C="245167.1" Error="0.00464"/>
<QuasiParabolic ID="9" StartDistance="6577.0" EndDistance="6581.0" A="1.64668616E13" B="-5.0113352E9" C="381273.28" Error="0.00137"/>
<QuasiParabolic ID="10" StartDistance="6581.0" EndDistance="6586.0" A="2.83808776E13" B="-8.632066E9" C="656363.0" Error="0.00494"/>
<QuasiParabolic ID="11" StartDistance="6586.0" EndDistance="6591.0" A="4.5030689E13" B="-1.36881889E10" C="1040216.9" Error="0.00237"/>
<QuasiParabolic ID="12" StartDistance="6591.0" EndDistance="6597.0" A="5.6137681E12" B="-1.72735731E9" C="132855.9" Error="0.00771"/>
<QuasiParabolic ID="13" StartDistance="6597.0" EndDistance="6609.031" A="-4.6100048E13" B="1.39506227E10" C="-1055410.0" Error="0.004"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="239.031" PeakDensity="139236.97" PeakScaleHeight="12.035" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
