<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 03:10:00.000"
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: 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" >
2026.05.07 (127) 03:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612705070310001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.581" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.923" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="259.962" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="259.962" 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="2.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="259.406" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="241.238" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.780" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.986" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.691" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.844" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.330" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
259.962 261.906 264.067 266.484 270.000 272.500 275.000 280.000 285.000 290.000 297.500 305.000 315.000 330.000 347.017
</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 66 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 7.8125 -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="375">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.991 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.982 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 214.973 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 259.406 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0
</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 0.3524263 0.35157037 0.35049725 0.34921128 0.34779054 0.3460947 0.34420434 0.34212717 0.33980232 0.33724248 0.33452845 0.33153966 0.32829612 0.324882 0.32119286 0.31719846 0.31293514 0.3084409 0.30364895 0.29851204 0.29307657 0.28730473 0.2811235 0.27458766 0.2676315 0.26020128 0.2522646 0.24381752 0.23478872 0.22503836 0.214622 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 0.20007922 0.20448035 0.20888148 0.21328261 0.21768375 0.22208488 0.22648601 0.23088714 0.23528828 0.23968941 0.24409054 0.24849167 0.2528928 0.25729394 0.26169506 0.2660962 0.27049732 0.27489847 0.2792996 0.28370073 0.28810185 0.292503 0.29690412 0.30130526 0.30570638 0.3101075 0.31450865 0.31890976 0.3233109 0.32771203 0.33211318 0.3365143 0.34091544 0.34531656 0.3497177 0.354 0.35489476 0.3896497 0.42750335 0.46820974 0.5115442 0.5573566 0.6055751 0.6561898 0.7092356 0.7648027 0.8229822 0.8839197 0.9477344 1.0145689 1.0845586 1.1577798 1.2343078 1.3141543 1.3972437 1.4834173 1.5724244 1.6638484 1.7571455 1.8516989 1.9466875 2.041335 2.1347277 2.2260232 2.3144357 2.3992765 2.4799418 2.5559397 2.6269321 2.6926491 2.7529237 2.8076556 2.8567708 2.900278 2.93817 2.9704857 2.9972558 3.018519 3.0343056 3.0446434 3.0495534 3.05 3.0494566 3.0461469 3.0399559 3.0310283 3.0195093 3.0055432 2.989274 2.9708438 2.9503918 2.9280555 2.903968 2.8782597 2.8510568 2.8224814 2.792651 2.761679 2.7296739 2.69674 2.6629767 2.6284785 2.5933356 2.5576339 2.5214536 2.4848719 2.4479606 2.4107883 2.373418 2.3359108 2.2983217 2.260704 2.2231061 2.1855738 2.1481493 2.1108713 2.0737765 2.036898 2.0002666 1.9639101 1.9278545 1.8921231 1.8567373 1.821716 1.7870767 1.752835 1.7190045 1.6855975 1.6526247 1.6200954 1.5880175 1.5563979 1.5252422 1.494555 1.46434 1.4345996 1.4053358 1.3765497 1.3482414 1.3204108 1.2930568 1.2661779 1.239772 1.2138364 1.1883683 1.1633644 1.1388208 1.1147335 1.0910981 1.06791 1.0451642 1.0228559 1.0009797 0.97953004 0.9585015 0.9378883 0.91768473 0.8978848 0.8784826 0.85947204 0.840847 0.82260156 0.8047294 0.7872244 0.77008057 0.75329155 0.73685133 0.72075385 0.7049929 0.6895625 0.6744567 0.65966946 0.6451949 0.6310272 0.61716056 0.6035892 0.5903075 0.5773098 0.5645906 0.55214447 0.5399659 0.5280498 0.51639074 0.50498366 0.49382338 0.482905 0.47222352 0.4617741 0.45155203 0.44155255 0.4317711 0.42220312 0.4128442 0.40368995 0.39473605 0.38597834 0.37741262 0.3690349 0.3608411 0.3528274 0.34498993 0.33732492 0.3298287 0.32249767 0.3153282 0.30831692 0.3014604 0.29475522 0.28819817 0.28178605 0.27551574 0.2693841 0.26338816 0.25752494 0.25179157 0.24618521 0.24070309 0.2353425 0.2301008 0.22497533 0.21996361 0.2150631 0.21027137 0.20558605 0.20100477 0.19652526 0.19214529 0.18786265 0.1836752 0.17958085 0.17557754 0.17166325 0.16783604 0.16409396 0.16043514 0.15685774 0.15335996 0.14994003 0.14659624 0.1433269 0.14013033 0.13700496 0.13394919 0.1309615 0.12804033 0.12518425 0.122391805 0.11966158 0.116992176 0.11438227 0.111830525 0.10933565 0.106896386 0.10451149 0.10217976 0.09990001 0.097671084 0.09549185 0.09336121 0.09127807 0.089241385 0.08725011 0.085303254 0.0833998 0.08153881 0.07971932 0.077940404 0.07620117 0.07450073 0.072838224 0.0712128 0.06962363 0.06806991 0.06655086 0.06506568 0.063613646 0.062194005 0.060806036 0.05944903 0.0581223 0.056825172 0.055556986 0.054317098 0.05310487 0.05191969 0.05076096

</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="3.05" PeakHeight="259.406" Num="5" zHalfNm="241.238" Error="1.496">
-45.162 1.602 -1.463 0.803 -0.213
</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="6514.991" A="-1.24135178E11" B="3.8313328E7" C="-2956.15" Error="0.0018"/>
<QuasiParabolic ID="2" StartDistance="6514.991" EndDistance="6549.982" A="0.0" B="-2704.9155" C="0.4552227" Error="0.0564"/>
<QuasiParabolic ID="3" StartDistance="6549.982" EndDistance="6571.0" A="1.12970564E11" B="-3.452672E7" C="2638.1045" Error="0.0634"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6583.0" A="-1.1139806E11" B="3.3763836E7" C="-2558.2551" Error="0.022"/>
<QuasiParabolic ID="5" StartDistance="6583.0" EndDistance="6591.0" A="6.942175E12" B="-2.1092023E9" C="160206.9" Error="0.0644"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6595.0" A="7.4999241E12" B="-2.27844787E9" C="173046.05" Error="0.00158"/>
<QuasiParabolic ID="7" StartDistance="6595.0" EndDistance="6615.0" A="1.69803063E13" B="-5.1534694E9" C="391015.8" Error="0.0271"/>
<QuasiParabolic ID="8" StartDistance="6615.0" EndDistance="6629.406" A="-2.98165857E13" B="8.9952512E9" C="-678426.4" Error="0.0106"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="104.973" Depth="0.154"/>
<TopsideChapman PeakHeight="259.406" PeakDensity="115415.63" PeakScaleHeight="13.844" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
