<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 08:10:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: F2o cusp not found, 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" >
2026.04.08 (098) 08:10:00</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">
FF202609804080810001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.534" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.750" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.675" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="269.468" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="269.468" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="292.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="260.884" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="240.292" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.721" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.542" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.919" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.512" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.800" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
269.468 270.795 272.255 273.870 275.666 277.674 279.935 282.500 285.000 290.000 292.500 297.500 302.500 310.000 317.500 330.000 344.772
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 93 0 0 0 90 0 0 0 87 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="406">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.479 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.958 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 207.437 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 260.884 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0
</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 0.35354906 0.35298675 0.35220242 0.35119912 0.34990713 0.3484798 0.34677604 0.34480518 0.34257796 0.34017614 0.33747253 0.33448547 0.33130062 0.32780653 0.324031 0.31994307 0.3155799 0.31086755 0.3058601 0.30045855 0.29471946 0.28856823 0.28203806 0.27502796 0.26751786 0.2595067 0.25087705 0.2416854 0.23171185 0.22096574 0.20945916 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 0.20019914 0.20494068 0.2096822 0.21442372 0.21916525 0.22390677 0.22864829 0.23338982 0.23813134 0.24287288 0.2476144 0.25235593 0.25709745 0.26183897 0.2665805 0.271322 0.27606356 0.28080508 0.2855466 0.29028812 0.29502964 0.2997712 0.3045127 0.30925423 0.31399575 0.31873727 0.3234788 0.32822034 0.33296186 0.33770338 0.3424449 0.34718642 0.35192797 0.354 0.37232623 0.40575644 0.4404786 0.47664735 0.51439446 0.55382854 0.5950667 0.63820094 0.683298 0.73043954 0.7796794 0.8310725 0.8846625 0.9404615 0.9984959 1.0587387 1.1211736 1.1857725 1.2524765 1.3211958 1.3918408 1.4643018 1.5384192 1.6140686 1.6910443 1.7691693 1.8482238 1.9279823 2.0081868 2.0885887 2.168902 2.2488494 2.3281453 2.4064655 2.48351 2.5589714 2.6325283 2.7038717 2.7726986 2.8387024 2.9015746 2.9610412 3.0168102 3.0686328 3.116248 3.1594408 3.1979911 3.2317123 3.260432 3.2840145 3.3023384 3.3153095 3.3228636 3.325 3.324982 3.3233447 3.3191311 3.3124528 3.3034217 3.2921505 3.278751 3.2633345 3.2460117 3.2268915 3.206081 3.1836846 3.159805 3.1345425 3.1079943 3.0802546 3.051415 3.0215638 2.990786 2.9591637 2.9267757 2.8936975 2.8600016 2.8257565 2.791029 2.7558813 2.7203732 2.6845617 2.6485004 2.6122403 2.5758297 2.5393138 2.5027356 2.4661353 2.429551 2.3930175 2.356569 2.3202357 2.2840471 2.2480302 2.2122095 2.1766088 2.1412492 2.1061506 2.0713315 2.0368085 2.0025969 1.9687105 1.9351623 1.9019635 1.8691245 1.8366545 1.8045619 1.7728536 1.7415363 1.7106152 1.6800951 1.6499798 1.6202728 1.5909762 1.5620923 1.5336223 1.505567 1.4779267 1.4507012 1.42389 1.397492 1.3715059 1.3459297 1.3207617 1.2959992 1.2716398 1.2476807 1.2241185 1.20095 1.1781718 1.1557801 1.1337712 1.1121409 1.0908853 1.0699999 1.0494808 1.0293233 1.009523 0.9900754 0.9709758 0.95221967 0.9338022 0.91571873 0.8979645 0.88053477 0.86342484 0.84662986 0.8301451 0.8139658 0.79808724 0.7825046 0.76721334 0.75220865 0.73748595 0.7230406 0.70886797 0.6949636 0.6813228 0.66794133 0.65481466 0.64193845 0.6293083 0.61691993 0.6047692 0.5928518 0.58116364 0.5697007 0.5584589 0.5474343 0.53662294 0.52602094 0.5156245 0.5054299 0.49543342 0.48563138 0.47602022 0.46659642 0.45735645 0.4482969 0.43941444 0.4307057 0.42216742 0.4137964 0.4055895 0.39754355 0.38965556 0.3819225 0.37434146 0.3669095 0.35962376 0.35248145 0.34547985 0.3386162 0.3318879 0.32529232 0.31882688 0.3124891 0.3062765 0.30018663 0.29421714 0.2883657 0.28262997 0.27700773 0.2714968 0.26609495 0.26080006 0.25561008 0.25052294 0.24553664 0.24064918 0.23585862 0.2311631 0.22656073 0.22204967 0.21762814 0.21329439 0.20904668 0.2048833 0.20080264 0.19680303 0.19288288 0.18904063 0.18527474 0.18158369 0.17796601 0.17442028 0.17094503 0.16753891 0.16420051 0.16092853 0.15772164 0.15457855 0.151498 0.14847875 0.14551958 0.1426193 0.13977675 0.13699079 0.13426028 0.13158414 0.12896128 0.12639064 0.12387119 0.12140191 0.11898181 0.11660991 0.114285246 0.11200689 0.10977391 0.10758542 0.10544053 0.10333836 0.10127808 0.09925885 0.09727985 0.095340274 0.093439355 0.091576315 0.0897504 0.08796088 0.08620701 0.0844881 0.08280344 0.08115237 0.0795342 0.07794829 0.07639398 0.07487065 0.0733777 0.071914494 0.070480466 0.06907502 0.06769759 0.06634762 0.06502456 0.063727885 0.06245705 0.061211556 0.059990894 0.05879457 0.057622094 0.056472994 0.055346806 0.05424307 0.05316134 0.052101184 0.051062163 0.05004386

</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="3.325" PeakHeight="260.884" Num="5" zHalfNm="240.292" Error="0.866">
-52.925 -0.747 0.079 0.119 0.027
</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="6512.479" A="-1.43989113E11" B="4.4441084E7" C="-3428.9707" Error="0.00163"/>
<QuasiParabolic ID="2" StartDistance="6512.479" EndDistance="6544.958" A="0.0" B="-2348.4253" C="0.40063107" Error="0.0454"/>
<QuasiParabolic ID="3" StartDistance="6544.958" EndDistance="6571.0" A="8.6127845E10" B="-2.6370556E7" C="2018.563" Error="0.0454"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6575.0" A="-6.9932568E11" B="2.12696112E8" C="-16172.479" Error="0.0164"/>
<QuasiParabolic ID="5" StartDistance="6575.0" EndDistance="6592.0" A="5.8550701E12" B="-1.78103654E9" C="135442.17" Error="0.0684"/>
<QuasiParabolic ID="6" StartDistance="6592.0" EndDistance="6617.0" A="1.30484221E13" B="-3.96348544E9" C="300979.88" Error="0.0482"/>
<QuasiParabolic ID="7" StartDistance="6617.0" EndDistance="6630.884" A="-3.09334282E13" B="9.3301064E9" C="-703523.1" Error="0.0124"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="97.437" Depth="0.154"/>
<TopsideChapman PeakHeight="260.884" PeakDensity="137166.56" PeakScaleHeight="15.512" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
