<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-01 -121 21:55:00.000"
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="20.0">
<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" >
2026.05.01 (121) 21:55:00</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">
FF202612105012155001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.593" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.606" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="263.571" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.411" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.877" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="234.872" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.510" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.812" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.925" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.148" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.630" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.120" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 254.000 255.500 257.000 258.500 260.000 263.571 267.143 270.714 274.286 277.857 281.429 285.000 288.571 292.143 295.714 299.286 302.857 306.429 310.000 317.500 325.000 332.500 340.569
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 75 75 75 75 75 72 48 0 0 0 0 33 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 45 42 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -9.375 -3.125 -3.125 -9.375 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="414">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.523 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.23767 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.47533 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 200.713 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.877 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21611734 0.24616334 0.27165246 0.29348505 0.31239188 0.32888874 0.34333992 0.3560076 0.36708394 0.37671873 0.3850212 0.39207563 0.39795023 0.40269494 0.40634817 0.4089387 0.41048568 0.411 0.4108197 0.41033074 0.40948346 0.40833274 0.40678144 0.40493876 0.40271226 0.40018827 0.39720693 0.39398113 0.3902398 0.38619906 0.38178957 0.37686315 0.37155208 0.36581412 0.3596204 0.3528786 0.34560046 0.33774456 0.32930368 0.32024357 0.3104092 0.29976183 0.28826582 0.27572417 0.2620805 0.24719694 0.23074254 0.21269931 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 0.20366114 0.21063921 0.21761726 0.22459531 0.23157336 0.23855141 0.24552946 0.2525075 0.25948557 0.2664636 0.27344167 0.2804197 0.28739777 0.29437584 0.30135387 0.30833194 0.31530997 0.32228804 0.32926607 0.33624414 0.34322217 0.35020024 0.3571783 0.36415634 0.3711344 0.37811244 0.3850905 0.39206854 0.3990466 0.40602463 0.411 0.42341504 0.46739638 0.5127464 0.559691 0.608443 0.65920943 0.71216595 0.7674885 0.8253434 0.88590115 0.9493335 1.0158099 1.0854943 1.1585412 1.2351134 1.3153471 1.399376 1.487311 1.5792468 1.675255 1.7753394 1.8794931 1.9876186 2.0996282 2.2152777 2.3343236 2.4564297 2.5811884 2.7081046 2.836603 2.966132 3.0959988 3.2255678 3.3540833 3.4808967 3.6053195 3.726676 3.8443558 3.957771 4.066377 4.169728 4.267363 4.358915 4.4440374 4.5224614 4.593941 4.658267 4.7152624 4.7647843 4.8067174 4.840964 4.867455 4.886135 4.896972 4.9 4.8999686 4.897411 4.8908777 4.880546 4.8665924 4.849195 4.8285313 4.8047776 4.7781076 4.748694 4.7167044 4.6823044 4.6456556 4.606915 4.5662346 4.523762 4.4796414 4.43401 4.387 4.33874 4.289351 4.238951 4.187652 4.13556 4.0827775 4.0294003 3.9755204 3.9212246 3.8665955 3.8117104 3.7566423 3.7014608 3.64623 3.591011 3.5358608 3.4808326 3.425976 3.3713372 3.3169594 3.2628825 3.2091432 3.155776 3.102812 3.0502803 2.998207 2.9466166 2.8955307 2.8449695 2.7949505 2.74549 2.6966023 2.6483002 2.6005948 2.5534954 2.5070107 2.4611475 2.415912 2.3713083 2.3273406 2.2840116 2.2413225 2.1992748 2.1578684 2.1171026 2.0769763 2.0374875 1.9986335 1.9604114 1.9228176 1.8858482 1.8494987 1.8137643 1.7786398 1.7441198 1.7101985 1.6768699 1.6441277 1.6119654 1.5803765 1.5493542 1.5188913 1.4889809 1.4596158 1.4307888 1.4024923 1.374719 1.3474616 1.3207124 1.294464 1.2687087 1.2434392 1.2186477 1.1943269 1.170469 1.147067 1.1241131 1.1016 1.0795203 1.0578669 1.0366324 1.0158097 0.99539155 0.97537106 0.9557412 0.93649507 0.9176259 0.8991269 0.8809914 0.8632129 0.84578484 0.8287008 0.8119545 0.79553974 0.7794503 0.7636801 0.7482233 0.7330739 0.7182262 0.70367444 0.68941295 0.6754364 0.6617392 0.64831597 0.6351616 0.62227076 0.6096385 0.59725976 0.5851296 0.57324326 0.561596 0.55018306 0.5389999 0.5280421 0.51730514 0.50678474 0.49647662 0.48637658 0.47648057 0.4667845 0.45728445 0.4479765 0.43885687 0.4299218 0.42116764 0.4125908 0.40418768 0.39595488 0.38788897 0.3799866 0.37224457 0.36465958 0.35722855 0.34994835 0.34281597 0.33582845 0.32898286 0.32227635 0.31570613 0.3092695 0.30296364 0.29678607 0.29073408 0.2848052 0.27899694 0.27330685 0.26773256 0.2622717 0.256922 0.2516812 0.2465471 0.24151754 0.2365904 0.23176362 0.22703515 0.22240299 0.21786521 0.21341988 0.20906512 0.20479912 0.20062004 0.19652614 0.19251569 0.18858698 0.18473837 0.18096821 0.17727491 0.17365693 0.17011271 0.16664077 0.16323963 0.15990785 0.15664402 0.15344675 0.1503147 0.14724654 0.14424096 0.1412967 0.1384125 0.13558714 0.13281941 0.13010816 0.12745222 0.12485047 0.12230181 0.11980515 0.11735944 0.11496363 0.11261671 0.110317685 0.108065575 0.10585943 0.103698306 0.10158128 0.099507466 0.09747598 0.095485955 0.09353654 0.09162692 0.08975627 0.08792381 0.08612875 0.08437032 0.0826478 0.08096043 0.079307504 0.07768832 0.07610218 0.07454843 0.0730264 0.07153542 0.07007489 0.06864418 0.06724267 0.06586977 0.0645249 0.063207485 0.06191696 0.060652785 0.059414417 0.058201328 0.05701301 0.05584895 0.054708652 0.053591635 0.052497424 0.05142555 0.050375562

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.411" PeakHeight="110.0" Num="3" Error="0.0">
-20.499 3.26 -0.238
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.411" EndFrequency="4.9" PeakHeight="254.877" Num="5" zHalfNm="234.872" Error="1.675">
-53.976 0.013 -0.804 0.674 -0.071
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0127" EndDistance="6480.001" A="-7.4114636E11" B="2.2874888E8" C="-17650.207" Error="0.00416"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6510.238" A="-2.51062714E11" B="7.7488488E7" C="-5978.8813" Error="0.00354"/>
<QuasiParabolic ID="2" StartDistance="6510.238" EndDistance="6540.475" A="0.0" B="4031.7942" C="-0.5793662" Error="0.0732"/>
<QuasiParabolic ID="3" StartDistance="6540.475" EndDistance="6569.0" A="2.11795497E10" B="-6642544.0" C="520.53687" Error="0.0732"/>
<QuasiParabolic ID="4" StartDistance="6569.0" EndDistance="6573.0" A="1.01454132E13" B="-3.08907034E9" C="235139.78" Error="0.0456"/>
<QuasiParabolic ID="5" StartDistance="6573.0" EndDistance="6581.0" A="6.6468221E12" B="-2.02453619E9" C="154162.0" Error="0.017"/>
<QuasiParabolic ID="6" StartDistance="6581.0" EndDistance="6611.0" A="2.78030031E13" B="-8.4540093E9" C="642649.56" Error="0.0784"/>
<QuasiParabolic ID="7" StartDistance="6611.0" EndDistance="6624.877" A="-6.7659157E13" B="2.04257853E10" C="-1541573.4" Error="0.00973"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="90.713" Depth="0.211"/>
<TopsideChapman PeakHeight="254.877" PeakDensity="297890.8" PeakScaleHeight="15.148" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
