<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-06 -096 20:25:00.000"
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="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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.06 (096) 20:25:00</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">
FF202609604062025001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.261" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.605" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.175" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.175" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="13.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="225.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="227.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.038" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.175" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.175" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="178.185" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="153.814" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.713" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.396" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.217" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.487" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.280" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="25">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
225.000 225.000 225.208 225.417 225.625 225.833 226.042 226.250 226.458 226.667 226.875 227.083 227.292 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
33 33 0 0 0 0 0 0 0 0 0 0 0 93 0 0 96 96 72 72 0 0 0 69 45
</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 -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 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="371">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.75 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 118.346664 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 126.69334 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.04 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.185 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22148298 0.6164069 0.9249075 1.1072865 1.2484784 1.3661308 1.4674196 1.556068 1.6343112 1.7036214 1.7649806 1.8191046 1.8665403 1.9076837 1.9428399 1.9722406 1.9960816 2.0144925 2.0275748 2.0353968 2.038 2.0360935 2.0303216 2.020629 2.0071063 1.9895688 1.9679887 1.9423119 1.9124173 1.901 1.901 1.901 1.901 1.901 1.901 1.901 1.901 1.901 1.901 1.9060335 1.9224473 1.938861 1.9552747 1.9716885 1.9881022 2.004516 2.0209298 2.0373435 2.038 2.1471403 2.2455091 2.3395414 2.4336107 2.5301392 2.6307735 2.736659 2.8482974 2.9655466 3.087337 3.211763 3.3364713 3.4591866 3.5782351 3.6926053 3.8019426 3.9062314 4.005778 4.10098 4.1922593 4.2800474 4.364745 4.446721 4.526293 4.603775 4.679425 4.753482 4.8261805 4.897715 4.9682746 5.0380335 5.1071463 5.17575 5.2439995 5.311979 5.3797617 5.4473433 5.514539 5.5808463 5.6450033 5.704035 5.751212 5.774379 5.775 5.7736363 5.7683234 5.7591505 5.7462797 5.729873 5.710094 5.6871037 5.661063 5.6321316 5.6004653 5.56622 5.529546 5.490591 5.4495015 5.406418 5.361477 5.314812 5.2665524 5.216822 5.1657424 5.113428 5.0599923 5.005541 4.9501777 4.894 4.8371034 4.7795773 4.721507 4.662975 4.6040583 4.5448313 4.485364 4.4257226 4.3659697 4.3061647 4.246363 4.1866183 4.12698 4.0674934 4.008203 3.9491496 3.890371 3.8319032 3.773779 3.716029 3.6586819 3.601764 3.5452995 3.4893112 3.433819 3.3788419 3.324397 3.2705 3.2171643 3.1644027 3.1122265 3.0606453 3.0096684 2.9593027 2.9095547 2.8604305 2.811934 2.764069 2.7168384 2.670244 2.624287 2.578968 2.5342872 2.4902434 2.4468358 2.4040623 2.3619206 2.320408 2.2795215 2.2392573 2.1996117 2.1605804 2.1221585 2.0843418 2.0471246 2.0105019 1.9744681 1.9390174 1.9041439 1.8698417 1.8361044 1.8029257 1.7702992 1.7382184 1.7066767 1.6756673 1.6451836 1.6152185 1.5857656 1.5568178 1.5283682 1.50041 1.4729363 1.4459401 1.4194146 1.3933531 1.3677484 1.342594 1.317883 1.2936085 1.2697642 1.246343 1.2233386 1.2007443 1.1785536 1.15676 1.1353573 1.1143389 1.0936987 1.0734307 1.0535283 1.0339859 1.0147972 0.99595636 0.9774575 0.95929503 0.94146305 0.923956 0.90676826 0.8898944 0.87332904 0.8570668 0.8411025 0.8254308 0.8100468 0.79494524 0.7801214 0.76557016 0.75128686 0.7372668 0.72350514 0.7099974 0.6967391 0.6837257 0.67095286 0.65841633 0.6461117 0.634035 0.622182 0.61054873 0.59913117 0.5879255 0.5769278 0.5661343 0.5555413 0.54514515 0.5349423 0.5249293 0.5151025 0.50545865 0.4959943 0.48670623 0.4775912 0.46864602 0.45986757 0.4512528 0.4427987 0.4345023 0.42636073 0.41837108 0.4105306 0.4028365 0.39528608 0.38787672 0.3806058 0.37347072 0.366469 0.35959816 0.35285577 0.34623948 0.33974692 0.33337578 0.32712385 0.3209889 0.31496873 0.30906123 0.3032643 0.2975759 0.29199395 0.28651655 0.2811417 0.27586752 0.2706921 0.26561365 0.26063028 0.2557403 0.25094193 0.2462335 0.24161325 0.2370796 0.23263094 0.22826563 0.22398216 0.21977897 0.21565457 0.2116075 0.2076363 0.20373957 0.19991589 0.19616391 0.1924823 0.18886971 0.18532489 0.18184654 0.17843343 0.17508434 0.17179807 0.16857344 0.1654093 0.16230452 0.15925798 0.1562686 0.15333529 0.15045702 0.14763275 0.14486147 0.14214219 0.13947393 0.13685574 0.13428667 0.13176583 0.12929226 0.12686513 0.12448355 0.12214666 0.119853616 0.117603615 0.11539584 0.1132295 0.11110381 0.10901802 0.106971376 0.104963146 0.10299262 0.101059064 0.0991618 0.09730016 0.095473446 0.09368103 0.09192226 0.0901965 0.08850313 0.08684155 0.085211165 0.08361138 0.08204162 0.08050133 0.07898996 0.07750696 0.076051794 0.07462395 0.073222905 0.07184817 0.070499234 0.06917562 0.06787686 0.066602476 0.06535202 0.06412504 0.06292109 0.061739746 0.060580578 0.059443172 0.05832712 0.057232022 0.05615748 0.055103112 0.05406854 0.05305339 0.0520573 0.05107991 0.050120868

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.038" PeakHeight="110.0" Num="3" Error="0.0">
-29.126 11.195 -2.319
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.038" EndFrequency="5.775" PeakHeight="178.185" Num="5" zHalfNm="153.814" Error="2.376">
-37.906 -9.16 6.176 -3.317 1.062
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.801" EndDistance="6480.001" A="-1.78373305E13" B="5.5053491E9" C="-424791.3" Error="0.00955"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6488.347" A="-1.37137792E13" B="4.23264768E9" C="-326589.03" Error="2.39E-4"/>
<QuasiParabolic ID="2" StartDistance="6488.347" EndDistance="6496.693" A="0.0" B="-60744.5" C="12.975031" Error="0.00309"/>
<QuasiParabolic ID="3" StartDistance="6496.693" EndDistance="6504.0" A="2.72588551E12" B="-8.4124128E8" C="64907.535" Error="0.00587"/>
<QuasiParabolic ID="4" StartDistance="6504.0" EndDistance="6506.0" A="1.56100586E14" B="-4.8004432E10" C="3690614.0" Error="0.0179"/>
<QuasiParabolic ID="5" StartDistance="6506.0" EndDistance="6522.0" A="2.74209293E13" B="-8.4472069E9" C="650556.8" Error="0.0182"/>
<QuasiParabolic ID="6" StartDistance="6522.0" EndDistance="6529.0" A="-3.28122814E13" B="1.00235715E10" C="-765479.56" Error="0.00914"/>
<QuasiParabolic ID="7" StartDistance="6529.0" EndDistance="6546.0" A="5.842968E12" B="-1.81752141E9" C="141327.98" Error="0.00531"/>
<QuasiParabolic ID="8" StartDistance="6546.0" EndDistance="6548.185" A="-3.1700865E14" B="9.6823362E10" C="-7393111.5" Error="9.67E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="25.04" Depth="0.137"/>
<TopsideChapman PeakHeight="178.185" PeakDensity="413779.47" PeakScaleHeight="16.487" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
