<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 07:50:00.000"
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" >
2026.04.07 (097) 07:50:00</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">
FF202609704070750001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.721" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.559" 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="3.675" 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="3.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.897" 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="236.968" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.647" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.723" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.682" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.120" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.044" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="39">
<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 3.325 3.35 3.375
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 218.750 220.000 220.000 220.714 221.429 222.143 222.857 223.571 224.286 225.000 227.500 230.000 230.000 230.000 232.500 232.500 235.000 236.667 238.333 240.000 241.667 243.333 245.000 246.667 248.333 250.290 252.476 254.934 257.718 260.897 264.562 268.834 273.877 279.920 287.294 296.492 308.287 323.961
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 66 63 0 0 0 0 0 0 66 63 69 72 45 48 42 42 0 0 0 72 0 0 78 0 93 96 99 96 96 93 87 87 90 93 66 66 96
</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 -7.8125 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="436">
<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 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 236.968 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0
</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 0.37147644 0.3995073 0.43405855 0.47572517 0.5237139 0.57609653 0.63093346 0.6870303 0.74396956 0.80176026 0.8606472 0.9209681 0.98313713 1.047618 1.1149063 1.1855601 1.2601857 1.3394557 1.4240941 1.5148283 1.6123273 1.7170345 1.8288792 1.9468861 2.0689392 2.1918607 2.311915 2.4259188 2.5317085 2.6283958 2.7159455 2.7948678 2.865862 2.9297216 2.9871888 3.038908 3.0854633 3.1273544 3.1649985 3.1987534 3.2289221 3.2557678 3.2794993 3.3003056 3.3183362 3.3337178 3.346558 3.356939 3.3649323 3.3705842 3.3739333 3.375 3.374999 3.374043 3.3713317 3.3669257 3.3608863 3.353275 3.3441541 3.3335845 3.3216276 3.3083446 3.2937953 3.2780397 3.2611363 3.243143 3.2241166 3.2041128 3.183186 3.1613898 3.138776 3.1153955 3.0912974 3.0665298 3.0411391 3.0151706 2.988668 2.9616733 2.9342272 2.9063692 2.8781376 2.8495681 2.8206966 2.7915564 2.7621796 2.7325978 2.7028403 2.6729357 2.6429112 2.6127925 2.5826044 2.5523705 2.522113 2.4918537 2.4616127 2.431409 2.4012604 2.3711848 2.3411984 2.3113163 2.281553 2.2519224 2.222437 2.193109 2.1639497 2.1349697 2.1061785 2.077586 2.0492 2.0210288 1.9930799 1.9653597 1.9378748 1.9106307 1.8836327 1.8568857 1.8303938 1.8041611 1.7781911 1.7524867 1.7270509 1.7018859 1.676994 1.6523767 1.6280354 1.6039716 1.580186 1.5566794 1.5334519 1.510504 1.4878355 1.4654462 1.4433359 1.4215037 1.3999488 1.3786707 1.357668 1.3369396 1.3164841 1.2963 1.276386 1.2567403 1.2373611 1.2182465 1.1993946 1.1808034 1.1624708 1.1443948 1.1265728 1.109003 1.0916828 1.07461 1.0577819 1.0411965 1.0248511 1.008743 0.99287015 0.97722965 0.961819 0.9466357 0.9316771 0.9169406 0.9024237 0.88812363 0.8740379 0.86016387 0.84649885 0.8330403 0.8197856 0.8067322 0.79387736 0.7812187 0.7687535 0.7564794 0.7443936 0.7324937 0.7207772 0.7092416 0.69788444 0.6867032 0.6756955 0.6648588 0.6541909 0.6436893 0.6333516 0.62317556 0.61315876 0.603299 0.5935941 0.58404154 0.5746393 0.5653852 0.556277 0.5473125 0.53848964 0.5298063 0.52126044 0.51285 0.50457287 0.49642718 0.48841083 0.48052195 0.47275856 0.4651188 0.45760074 0.45020255 0.4429224 0.4357585 0.42870903 0.42177224 0.4149464 0.4082298 0.40162078 0.3951176 0.38871866 0.38242236 0.37622708 0.37013125 0.36413333 0.35823175 0.35242504 0.3467117 0.34109026 0.33555928 0.33011734 0.32476306 0.31949502 0.31431186 0.30921227 0.3041949 0.29925847 0.29440168 0.2896233 0.28492203 0.28029668 0.27574605 0.27126893 0.26686415 0.2625306 0.25826707 0.25407252 0.2499458 0.24588585 0.24189158 0.23796195 0.23409593 0.2302925 0.22655067 0.22286941 0.2192478 0.21568486 0.21217963 0.20873122 0.20533869 0.20200115 0.19871773 0.19548753 0.19230972 0.18918344 0.18610786 0.18308218 0.18010558 0.17717728 0.1742965 0.17146246 0.16867441 0.16593163 0.16323335 0.16057889 0.15796751 0.15539855 0.15287128 0.15038507 0.14793922 0.14553311 0.14316607 0.14083748 0.13854672 0.13629317 0.13407624 0.13189532 0.12974983 0.12763922 0.1255629 0.12352032 0.12151094 0.11953421 0.11758961 0.11567662 0.11379472 0.11194342 0.110122204 0.1083306 0.10656812 0.104834296 0.10312866 0.101450756 0.09980013 0.098176345 0.09657897 0.09500756 0.09346171 0.091941 0.09044501 0.08897336 0.087525636 0.08610146 0.08470044 0.08332222 0.08196641 0.08063265 0.07932058 0.078029856 0.07676013 0.07551105 0.074282296 0.07307353 0.07188442 0.07071466 0.069563925 0.068431914 0.06731832 0.06622284 0.06514518 0.06408505 0.06304217 0.06201626 0.061007038 0.060014237 0.05903759 0.05807683 0.057131704 0.056201953 0.05528733 0.05438759 0.05350249 0.05263179 0.051775258 0.050932664 0.050103776

</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="3.375" PeakHeight="236.968" Num="5" zHalfNm="212.647" Error="1.719">
-58.411 11.443 -7.009 3.59 -1.331
</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="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="4013.03" C="-0.57689387" Error="0.0589"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6552.0" A="-5.8139822E9" B="1633998.2" C="-113.84482" Error="0.0589"/>
<QuasiParabolic ID="4" StartDistance="6552.0" EndDistance="6556.0" A="2.09680335E12" B="-6.4019059E8" C="48865.445" Error="0.0547"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6571.0" A="8.8363133E12" B="-2.6961728E9" C="205667.03" Error="0.0309"/>
<QuasiParabolic ID="6" StartDistance="6571.0" EndDistance="6580.0" A="3.784989E13" B="-1.15269683E10" C="877619.2" Error="0.0386"/>
<QuasiParabolic ID="7" StartDistance="6580.0" EndDistance="6606.968" A="-1.80888147E13" B="5.4756777E9" C="-414375.2" Error="0.0349"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="236.968" PeakDensity="141322.89" PeakScaleHeight="19.044" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
