<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 01:20:00.000"
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" >
2026.04.09 (099) 01:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090120001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.794" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.591" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="4.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="232.054" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="211.599" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.129" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.203" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.939" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.598" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.350" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.010" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="104">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.325 2.35 2.375 2.4 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 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 228.750 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 237.500 237.500 237.500 240.000 240.000 240.000 242.500 242.500 242.500 245.000 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 255.000 257.500 260.000 260.000 262.500 264.757 267.636 271.439 276.691 284.418 296.909 320.534
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 54 78 81 72 69 72 72 69 69 72 69 72 72 72 75 75 75 75 78 51 51 60 54 0 66 72 72 84 84 96 96 99 99 96 96 99 99 102 102 99 99 99 99 99 96 87 87 87 84 81 81 81 78 81 84 69 66 66 66 93 93 96 90 69 69 93 93 93 90 102 105 105 102 105 108 96 96 96 96 93 96 99 93 72 72 69 69 90 93 93 93 105 102 90 93 93 90 102 99 99 96 96 93
</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 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 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 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 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 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="396">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 232.054 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0
</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 0.35317364 0.35223874 0.35086352 0.34905878 0.3468389 0.3442219 0.3411586 0.33767787 0.33367795 0.32927206 0.3243802 0.3189446 0.3129916 0.30645373 0.29930657 0.29149976 0.28296635 0.27368933 0.26350668 0.2523124 0.24007721 0.22657463 0.21160045 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 0.20628572 0.21257143 0.21885714 0.22514285 0.23142858 0.23771429 0.244 0.2502857 0.25657144 0.26285714 0.26914287 0.27542856 0.2817143 0.288 0.2942857 0.30057144 0.30685714 0.31314287 0.31942856 0.3257143 0.332 0.3382857 0.34457144 0.35085714 0.354 0.37565967 0.4209559 0.4688912 0.5195505 0.57313144 0.629878 0.6901156 0.7541927 0.8225214 0.8955802 0.97388315 1.0579937 1.1485536 1.2462094 1.3516651 1.4655826 1.5885773 1.7210877 1.8633083 2.0150132 2.175383 2.343094 2.516049 2.6918187 2.867635 3.0409577 3.2094846 3.3714528 3.525553 3.6710174 3.8074627 3.9346943 4.052824 4.1620045 4.262497 4.354597 4.438585 4.5147643 4.583422 4.6448092 4.699145 4.7466555 4.7875137 4.821876 4.849876 4.8716183 4.8871813 4.896628 4.8999934 4.9 4.898262 4.8927474 4.8836102 4.8710136 4.85512 4.836093 4.8140936 4.789283 4.761818 4.7318554 4.6995473 4.6650443 4.628491 4.5900297 4.549799 4.5079317 4.464557 4.4198 4.3737803 4.3266134 4.2784104 4.229277 4.1793156 4.1286216 4.0772886 4.0254045 3.9730523 3.9203115 3.8672574 3.8139613 3.76049 3.7069068 3.653272 3.5996408 3.5460663 3.4925978 3.4392815 3.3861604 3.3332748 3.2806618 3.2283561 3.1763902 3.1247933 3.0735931 3.0228145 2.9724808 2.922613 2.87323 2.8243494 2.7759867 2.728156 2.68087 2.63414 2.5879753 2.5423846 2.4973752 2.4529533 2.4091241 2.3658917 2.3232594 2.2812295 2.2398033 2.198982 2.1587656 2.1191535 2.0801444 2.0417366 2.003928 1.9667158 1.9300967 1.8940673 1.8586235 1.823761 1.7894751 1.7557609 1.7226133 1.6900268 1.6579957 1.6265143 1.5955764 1.565176 1.5353066 1.505962 1.4771354 1.4488205 1.4210103 1.3936982 1.3668774 1.340541 1.3146821 1.2892939 1.2643694 1.2399018 1.2158841 1.1923094 1.1691709 1.1464617 1.1241751 1.1023042 1.0808424 1.059783 1.0391192 1.0188446 0.99895257 0.97943676 0.9602907 0.94150805 0.9230826 0.9050081 0.8872785 0.86988765 0.85282964 0.8360986 0.8196886 0.80359405 0.78780913 0.7723284 0.7571462 0.7422571 0.72765595 0.71333724 0.69929594 0.68552685 0.67202497 0.6587853 0.64580303 0.63307333 0.62059146 0.6083528 0.5963527 0.5845868 0.5730506 0.5617398 0.55065006 0.5397772 0.5291172 0.5186659 0.5084194 0.49837366 0.48852494 0.47886944 0.46940345 0.4601233 0.45102546 0.4421064 0.43336266 0.4247909 0.4163877 0.4081499 0.40007424 0.3921576 0.38439688 0.37678906 0.36933118 0.36202028 0.35485354 0.34782812 0.3409413 0.33419034 0.3275726 0.3210855 0.31472647 0.30849302 0.30238265 0.29639298 0.29052162 0.2847663 0.2791247 0.27359462 0.26817384 0.26286024 0.2576517 0.25254616 0.24754159 0.24263602 0.2378275 0.2331141 0.22849394 0.22396523 0.21952614 0.2151749 0.2109098 0.20672911 0.20263119 0.1986144 0.19467714 0.19081786 0.18703498 0.18332703 0.1796925 0.17612997 0.172638 0.1692152 0.1658602 0.16257167 0.15934828 0.15618876 0.15309185 0.15005629 0.14708087 0.14416443 0.14130577 0.13850376 0.1357573 0.13306525 0.13042656 0.12784018 0.12530504 0.12282017 0.120384544 0.1179972 0.11565718 0.11336354 0.11111538 0.10891178 0.10675187 0.10463478 0.102559656 0.10052568 0.09853202 0.0965779 0.09466252 0.09278511 0.09094493 0.089141235 0.0873733 0.08564043 0.083941914 0.082277074 0.080645256 0.07904579 0.077478044 0.075941384 0.0744352 0.07295887 0.07151183 0.07009348 0.068703264 0.06734061 0.066004984 0.06469584 0.06341266 0.06215493 0.060922142 0.059713803 0.058529425 0.05736854 0.056230675 0.055115376 0.054022197 0.0529507 0.051900454 0.050871037

</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="4.9" PeakHeight="232.054" Num="5" zHalfNm="211.599" Error="0.281">
-52.458 6.574 -4.118 1.72 -0.272
</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="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="1191.0212" C="-0.1430984" Error="0.017"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6553.0" A="5.6132907E10" B="-1.7312812E7" C="1334.905" Error="0.017"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6554.0" A="2.48671854E13" B="-7.5897385E9" C="579118.06" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6554.0" EndDistance="6561.0" A="8.0184733E12" B="-2.44823347E9" C="186876.27" Error="0.0208"/>
<QuasiParabolic ID="6" StartDistance="6561.0" EndDistance="6566.0" A="1.99905394E13" B="-6.0976973E9" C="464994.22" Error="0.008"/>
<QuasiParabolic ID="7" StartDistance="6566.0" EndDistance="6582.0" A="5.699209E13" B="-1.73683487E10" C="1323252.9" Error="0.0355"/>
<QuasiParabolic ID="8" StartDistance="6582.0" EndDistance="6602.054" A="-5.5027184E13" B="1.66697165E10" C="-1262440.4" Error="0.0112"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="232.054" PeakDensity="297890.8" PeakScaleHeight="15.598" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
