<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-29 -119 06:50:00.000"
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" >
2026.04.29 (119) 06:50:00</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="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611904290650001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.399" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.473" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="280.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="280.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="292.901" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="279.999" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="254.850" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.064" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="36.035" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.155" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.093" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.380" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.240" 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" >
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" >
280.000 282.500 285.639 289.090 292.901 297.132 301.857 307.168 313.180 320.042 327.948 337.157 348.019 361.023 376.872 396.614
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 90 87 87 90 93 90 78 78 0 0 0 0 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 -10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="479">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.545 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.09 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.635 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 279.999 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0
</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 0.35362422 0.35313663 0.35250106 0.35164472 0.35064512 0.34935787 0.34793577 0.3463105 0.34448874 0.34247804 0.34021705 0.33778653 0.33512902 0.33225885 0.32912675 0.3258166 0.3222227 0.3183734 0.31429857 0.3099733 0.30532843 0.30036545 0.29512173 0.28959465 0.28368875 0.2773549 0.2707072 0.2636296 0.25601763 0.24794869 0.23937973 0.23011166 0.22026068 0.2096159 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 0.2 0.2 0.2 0.2 0.2 0.2 0.20394261 0.20827514 0.21260768 0.21694021 0.22127275 0.2256053 0.22993782 0.23427036 0.23860289 0.24293543 0.24726798 0.2516005 0.25593305 0.2602656 0.2645981 0.26893064 0.2732632 0.27759573 0.28192827 0.28626078 0.29059333 0.29492587 0.2992584 0.30359095 0.30792347 0.312256 0.31658855 0.3209211 0.32525364 0.32958615 0.3339187 0.33825123 0.34258378 0.34691632 0.35124883 0.354 0.3633231 0.38986757 0.41783497 0.44718733 0.47788453 0.5099177 0.5432688 0.57795465 0.61398685 0.6513875 0.69019324 0.73044324 0.7721679 0.8154187 0.8602454 0.9066948 0.9548098 1.0046272 1.0562133 1.109578 1.1647651 1.2217782 1.2806388 1.341342 1.4038388 1.4680994 1.5340477 1.6015918 1.670622 1.7409703 1.812479 1.8849354 1.9581131 2.0317616 2.1055992 2.1793582 2.2527359 2.325446 2.3971927 2.4676905 2.5366912 2.6039364 2.669188 2.7322347 2.7929058 2.8510299 2.9064763 2.9591153 3.0088544 3.0555947 3.0992827 3.139856 3.177272 3.2114978 3.2425086 3.2702823 3.2948096 3.3160758 3.3340797 3.3488104 3.36027 3.368455 3.3733654 3.375 3.375 3.374104 3.3714595 3.367127 3.361167 3.3536408 3.3446097 3.3341348 3.3222768 3.309096 3.2946527 3.2790055 3.262213 3.2443328 3.2254212 3.2055335 3.1847239 3.1630454 3.1405497 3.1172874 3.0933073 3.0686574 3.0433836 3.0175312 2.9911432 2.964262 2.9369283 2.9091809 2.8810577 2.852595 2.823828 2.7947903 2.765514 2.7360299 2.7063677 2.6765559 2.6466215 2.6165905 2.5864873 2.5563357 2.5261579 2.4959753 2.465808 2.4356754 2.4055955 2.3755856 2.3456619 2.3158398 2.286134 2.256558 2.2271245 2.1978457 2.1687331 2.139797 2.1110475 2.0824938 2.0541444 2.0260072 1.9980899 1.970399 1.9429411 1.9157218 1.8887464 1.8620197 1.8355461 1.8093296 1.7833738 1.7576818 1.7322563 1.7070999 1.6822146 1.6576023 1.6332644 1.6092023 1.5854167 1.5619085 1.5386779 1.5157256 1.4930512 1.4706547 1.4485357 1.4266937 1.4051279 1.3838373 1.3628213 1.3420783 1.3216074 1.3014067 1.2814752 1.261811 1.2424123 1.2232774 1.2044045 1.1857914 1.1674362 1.1493368 1.1314908 1.1138963 1.0965507 1.0794519 1.0625974 1.0459849 1.0296118 1.0134759 0.9975744 0.9819049 0.96646494 0.95125186 0.93626314 0.9214962 0.90694845 0.89261734 0.8785002 0.8645946 0.8508977 0.8374071 0.8241201 0.81103426 0.79814684 0.7854554 0.7729573 0.7606501 0.7485312 0.73659813 0.72484833 0.71327937 0.7018888 0.6906741 0.6796329 0.6687628 0.6580614 0.64752626 0.6371552 0.6269457 0.61689556 0.60700244 0.5972642 0.58767843 0.5782431 0.5689559 0.55981463 0.5508173 0.54196167 0.5332457 0.5246672 0.5162243 0.5079149 0.49973702 0.49168864 0.48376784 0.4759727 0.46830133 0.46075183 0.45332235 0.4460111 0.43881622 0.43173596 0.42476857 0.4179123 0.41116545 0.40452632 0.39799327 0.39156467 0.38523886 0.37901425 0.3728893 0.36686248 0.36093217 0.35509694 0.34935528 0.34370574 0.33814687 0.33267725 0.32729545 0.32200012 0.3167899 0.31166342 0.3066194 0.30165654 0.29677352 0.2919691 0.28724203 0.28259107 0.27801508 0.27351278 0.26908305 0.26472473 0.2604367 0.2562178 0.252067 0.24798314 0.2439652 0.2400121 0.23612282 0.23229633 0.22853164 0.22482777 0.22118373 0.21759857 0.21407135 0.21060114 0.20718701 0.20382808 0.20052347 0.1972723 0.1940737 0.19092685 0.1878309 0.18478504 0.18178846 0.17884038 0.17594 0.17308658 0.17027934 0.16751754 0.16480047 0.16212738 0.15949757 0.15691037 0.15436506 0.15186097 0.14939745 0.14697383 0.14458948 0.14224376 0.13993603 0.13766572 0.13543218 0.13323484 0.1310731 0.12894641 0.1268542 0.124795884 0.122770935 0.120778814 0.11881899 0.11689094 0.11499414 0.113128096 0.11129231 0.1094863 0.107709564 0.10596164 0.104242064 0.10255037 0.10088612 0.09924886 0.097638145 0.09605356 0.09449468 0.09296108 0.09145235 0.08996811 0.088507935 0.08707145 0.08565826 0.084268 0.0829003 0.081554785 0.0802311 0.07892889 0.077647805 0.07638751 0.07514766 0.073927924 0.072727986 0.07154751 0.07038619 0.06924372 0.06811979 0.06701409 0.06592633 0.06485623 0.06380349 0.06276783 0.061748985 0.06074667 0.05976062 0.058790572 0.057836268 0.05689745 0.05597387 0.055065278 0.05417143 0.053292092 0.052427024 0.051575996 0.050738778

</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="279.999" Num="5" zHalfNm="254.85" Error="2.028">
-64.013 1.522 -1.554 0.879 -0.198
</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="6515.545" A="-1.20322826E11" B="3.7136676E7" C="-2865.359" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.545" EndDistance="6551.09" A="0.0" B="-813.91956" C="0.1649544" Error="0.0178"/>
<QuasiParabolic ID="3" StartDistance="6551.09" EndDistance="6553.0" A="3.15016059E12" B="-9.615632E8" C="73377.55" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6580.0" A="-2.72928276E10" B="8207442.0" C="-616.85394" Error="0.0796"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6586.0" A="5.761022E11" B="-1.75195296E8" C="13319.524" Error="0.0282"/>
<QuasiParabolic ID="6" StartDistance="6586.0" EndDistance="6601.0" A="4.35645474E12" B="-1.32319181E9" C="100473.83" Error="0.0564"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6631.0" A="1.00988753E13" B="-3.06305562E9" C="232261.72" Error="0.0323"/>
<QuasiParabolic ID="8" StartDistance="6631.0" EndDistance="6649.999" A="-1.98410376E13" B="5.96723E9" C="-448652.6" Error="0.0119"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.635" Depth="0.154"/>
<TopsideChapman PeakHeight="279.999" PeakDensity="141322.89" PeakScaleHeight="19.093" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
