<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 11:30:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.08 (098) 11:30:00</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">
FF202609804081130001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="5.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.039" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="22.618" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="88" Val="5.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="243.620" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.484" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="176.772" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="144.711" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.491" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.460" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.964" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.111" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="51.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.410" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="21">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.1 5.125 5.15 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 235.000 235.000 235.000 235.000 235.500 236.000 236.500 237.000 237.520 238.099 238.746 239.475 240.302 241.248 242.342 243.620 245.134 246.955 249.187 251.988
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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 -3.125 -3.125 -9.375 3.125 -3.125 9.375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="462">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.643 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 115.831 116.0 117.0 118.0 119.0 120.0 121.0 121.662 122.0 123.0 124.0 125.0 126.0 127.0 127.493 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.772 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22986737 0.7914744 1.1433263 1.3581868 1.5265366 1.667725 1.7898375 1.8970293 1.9918962 2.076071 2.1507154 2.216644 2.2744834 2.324695 2.3676326 2.4035678 2.4327185 2.4552355 2.47124 2.4808147 2.484 2.4803102 2.4692616 2.4508164 2.4247513 2.391041 2.357 2.357 2.357 2.357 2.357 2.357 2.357 2.357 2.3643618 2.3861418 2.407922 2.429702 2.4514823 2.4732623 2.484 2.5319743 2.6172817 2.6970427 2.7749364 2.852874 2.932057 3.0132725 3.096989 3.1834197 3.2723784 3.3634076 3.455689 3.5481873 3.6398733 3.7297802 3.8172183 3.901684 3.983003 4.061119 4.136119 4.208167 4.2774653 4.344242 4.408701 4.4710507 4.5314894 4.590201 4.6473656 4.703111 4.7575793 4.810912 4.863204 4.9145713 4.965098 5.014874 5.063962 5.1124325 5.1603293 5.2076735 5.254475 5.3007135 5.346271 5.3910036 5.434566 5.476389 5.5155077 5.5502863 5.578141 5.595647 5.6 5.599942 5.598333 5.594565 5.588702 5.5808105 5.5709543 5.5591993 5.545611 5.5302544 5.513194 5.4944954 5.4742217 5.452437 5.429203 5.4045825 5.378636 5.3514237 5.3230047 5.293437 5.2627773 5.2310815 5.198404 5.164798 5.1303153 5.0950074 5.0589232 5.0221114 4.984618 4.94649 4.9077697 4.8685017 4.8287263 4.788485 4.7478156 4.706757 4.6653447 4.6236143 4.5816 4.5393343 4.4968486 4.454173 4.4113374 4.3683696 4.325296 4.2821436 4.238936 4.195698 4.1524515 4.109219 4.066021 4.022877 3.979807 3.936828 3.8939576 3.8512125 3.808608 3.7661588 3.7238793 3.6817827 3.6398814 3.5981874 3.5567122 3.5154662 3.4744594 3.433701 3.3932004 3.3529656 3.313004 3.2733233 3.23393 3.1948307 3.1560307 3.1175354 3.07935 3.041479 3.0039268 2.9666965 2.9297922 2.8932164 2.8569722 2.821062 2.7854881 2.7502522 2.7153559 2.6808002 2.6465867 2.612716 2.5791886 2.5460052 2.5131657 2.4806702 2.4485185 2.4167104 2.385245 2.354122 2.3233402 2.2928991 2.262797 2.2330332 2.203606 2.174514 2.1457558 2.1173294 2.0892332 2.0614653 2.0340238 2.0069065 1.9801116 1.9536366 1.9274796 1.9016382 1.8761098 1.8508924 1.8259834 1.8013803 1.7770804 1.7530816 1.7293808 1.7059758 1.6828636 1.6600418 1.6375077 1.6152585 1.5932914 1.5716038 1.550193 1.529056 1.5081903 1.487593 1.4672614 1.4471928 1.4273841 1.407833 1.3885363 1.3694915 1.3506957 1.3321463 1.3138405 1.2957755 1.2779486 1.2603573 1.2429985 1.2258698 1.2089685 1.1922919 1.1758374 1.1596023 1.143584 1.1277801 1.1121877 1.0968045 1.0816278 1.0666554 1.0518844 1.0373125 1.0229373 1.0087563 0.994767 0.98096716 0.96735436 0.9539262 0.9406804 0.9276146 0.9147266 0.90201414 0.8894748 0.8771066 0.8649072 0.85287446 0.8410062 0.82930034 0.8177548 0.8063674 0.79513615 0.784059 0.7731339 0.76235884 0.75173193 0.74125123 0.7309147 0.72072047 0.7106667 0.70075154 0.6909731 0.6813296 0.6718192 0.6624401 0.6531907 0.644069 0.63507354 0.6262025 0.6174543 0.6088271 0.6003195 0.59192973 0.58365625 0.5754975 0.5674519 0.5595179 0.5516941 0.54397887 0.5363708 0.52886844 0.5214703 0.514175 0.50698113 0.49988732 0.49289218 0.48599437 0.47919255 0.47248542 0.4658717 0.45935008 0.45291927 0.44657812 0.4403253 0.43415964 0.42807993 0.422085 0.41617367 0.4103448 0.40459725 0.3989299 0.39334163 0.3878314 0.38239804 0.37704057 0.3717579 0.366549 0.36141285 0.35634845 0.35135484 0.346431 0.34157595 0.33678874 0.33206847 0.3274142 0.32282498 0.31829995 0.31383818 0.30943882 0.30510098 0.30082384 0.2966065 0.2924482 0.28834808 0.2843053 0.28031912 0.27638873 0.27251333 0.2686922 0.26492456 0.26120964 0.25754675 0.25393513 0.25037408 0.2468629 0.2434009 0.23998739 0.23662166 0.2333031 0.23003101 0.22680476 0.2236237 0.2204872 0.21739465 0.21434543 0.21133894 0.20837456 0.20545173 0.20256984 0.19972835 0.19692668 0.19416428 0.1914406 0.18875508 0.1861072 0.18349645 0.18092228 0.17838421 0.17588171 0.17341429 0.17098147 0.16858275 0.16621765 0.16388573 0.1615865 0.15931949 0.15708429 0.15488042 0.15270744 0.15056495 0.1484525 0.14636967 0.14431605 0.14229123 0.1402948 0.13832638 0.13638555 0.13447195 0.13258518 0.13072488 0.12889066 0.12708218 0.12529907 0.12354095 0.12180751 0.120098375 0.11841321 0.116751686 0.11511347 0.11349823 0.11190566 0.11033542 0.1087872 0.10726071 0.10575563 0.104271665 0.10280851 0.101365894 0.09994351 0.09854108 0.09715833 0.09579497 0.09445074 0.09312537 0.09181859 0.09053015 0.08925979 0.08800724 0.08677228 0.08555464 0.08435407 0.08317036 0.08200326 0.08085252 0.07971794 0.078599274 0.077496305 0.0764088 0.07533657 0.074279375 0.07323702 0.07220929 0.071195975 0.07019688 0.0692118 0.06824055 0.06728293 0.06633874 0.0654078 0.06448992 0.063584924 0.06269263 0.061812848 0.060945414 0.060090154 0.059246894 0.058415465 0.057595707 0.05678745 0.055990532 0.055204798 0.05443009 0.053666253 0.052913137 0.052170586 0.051438455 0.050716598 0.050004873

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.484" PeakHeight="110.0" Num="3" Error="0.0">
-29.697 11.986 -2.646
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.484" EndFrequency="5.6" PeakHeight="176.772" Num="5" zHalfNm="144.711" Error="2.366">
-44.081 -9.066 6.066 -3.168 0.97
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.8486" EndDistance="6480.001" A="-2.66303512E13" B="8.2192445E9" C="-634194.8" Error="0.00903"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6485.831" A="-3.19849507E13" B="9.8718986E9" C="-761714.4" Error="1.56E-4"/>
<QuasiParabolic ID="2" StartDistance="6485.831" EndDistance="6491.662" A="0.0" B="-123767.516" C="24.637337" Error="0.00293"/>
<QuasiParabolic ID="3" StartDistance="6491.662" EndDistance="6494.0" A="6.4993786E13" B="-2.00241172E10" C="1542327.1" Error="0.008"/>
<QuasiParabolic ID="4" StartDistance="6494.0" EndDistance="6496.0" A="-6.3287174E13" B="1.94834166E10" C="-1499521.8" Error="0.0052"/>
<QuasiParabolic ID="5" StartDistance="6496.0" EndDistance="6498.0" A="1.5549857E14" B="-4.7876731E10" C="3685218.5" Error="0.00221"/>
<QuasiParabolic ID="6" StartDistance="6498.0" EndDistance="6511.0" A="1.90897728E13" B="-5.8918712E9" C="454620.03" Error="0.0061"/>
<QuasiParabolic ID="7" StartDistance="6511.0" EndDistance="6544.0" A="-6.8967182E12" B="2.09046362E9" C="-158368.38" Error="0.00957"/>
<QuasiParabolic ID="8" StartDistance="6544.0" EndDistance="6546.772" A="-1.33961162E14" B="4.092434E10" C="-3125504.5" Error="4.9E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="17.493" Depth="0.127"/>
<TopsideChapman PeakHeight="176.772" PeakDensity="389081.88" PeakScaleHeight="22.111" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
