<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-10 -130 02:20:00.000"
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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.10 (130) 02:20:00</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">
FF202613005100220001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.707" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.678" 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="3.500" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="257.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="257.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.378" 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="256.052" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="237.818" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.039" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.113" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.744" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.142" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.130" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="10">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
257.500 260.000 265.000 268.378 272.768 278.705 287.181 300.268 323.136 373.289
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 63 66 69 84 84 96 90 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="378">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.41667 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.83333 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.25 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 256.052 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0
</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 0.35306162 0.35242635 0.351496 0.35034946 0.34906474 0.34757262 0.34580722 0.34384936 0.34170708 0.3393199 0.33670086 0.33386406 0.33075932 0.32740733 0.32383022 0.31999075 0.3158602 0.31147584 0.30682194 0.3017886 0.29647052 0.29077086 0.28478742 0.2783704 0.27152064 0.2642219 0.2564137 0.24812241 0.23924045 0.22962193 0.21941046 0.20837834 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 0.20074576 0.20522034 0.20969492 0.21416949 0.21864407 0.22311865 0.22759321 0.2320678 0.23654237 0.24101695 0.24549152 0.2499661 0.25444067 0.25891525 0.26338983 0.2678644 0.272339 0.27681357 0.28128815 0.2857627 0.29023728 0.29471186 0.29918644 0.30366102 0.3081356 0.31261018 0.31708476 0.3215593 0.3260339 0.33050847 0.33498305 0.33945763 0.3439322 0.3484068 0.35288134 0.354 0.37481982 0.40844774 0.449789 0.498809 0.55392754 0.6129706 0.67430973 0.7371313 0.8012765 0.8668792 0.93425524 1.0037847 1.0758972 1.1510777 1.2297707 1.3124709 1.3996426 1.4916527 1.5887709 1.6910169 1.7980319 1.9088943 2.0221422 2.1357782 2.2474668 2.3549953 2.4565058 2.550801 2.637221 2.7156057 2.7861047 2.849049 2.9048803 2.954012 2.9968784 3.0338597 3.0652838 3.09145 3.1125844 3.128885 3.1404903 3.1475065 3.1499903 3.15 3.148637 3.1443324 3.1372209 3.1274426 3.1151383 3.100448 3.0835104 3.064463 3.0434399 3.020574 2.995994 2.9698255 2.9421902 2.9132059 2.8829865 2.8516417 2.8192763 2.7859914 2.751883 2.7170436 2.6815603 2.6455162 2.6089904 2.5720577 2.5347884 2.4972491 2.4595027 2.4216077 2.3836195 2.3455896 2.3075666 2.2695954 2.2317176 2.1939723 2.1563957 2.1190207 2.0818784 2.0449967 2.0084019 1.9721173 1.9361646 1.9005635 1.8653316 1.8304849 1.7960376 1.7620025 1.7283907 1.6952121 1.6624753 1.6301877 1.5983555 1.5669838 1.5360768 1.5056376 1.4756689 1.4461721 1.4171481 1.3885971 1.3605188 1.332912 1.3057752 1.2791063 1.252903 1.2271621 1.2018807 1.1770549 1.1526808 1.1287543 1.1052707 1.0822257 1.059614 1.0374308 1.0156705 0.99432826 0.97339815 0.9528747 0.9327522 0.91302496 0.893687 0.8747326 0.8561558 0.8379506 0.8201111 0.8026314 0.78550535 0.76872724 0.752291 0.7361908 0.7204207 0.70497495 0.6898477 0.67503315 0.6605257 0.6463196 0.6324094 0.61878943 0.6054543 0.5923986 0.5796169 0.567104 0.5548547 0.54286385 0.53112644 0.5196374 0.50839186 0.49738503 0.48661205 0.47606832 0.46574917 0.45565012 0.44576666 0.4360944 0.42662907 0.41736642 0.40830225 0.39943254 0.3907532 0.38226035 0.37395012 0.36581868 0.3578623 0.35007733 0.3424602 0.33500737 0.3277154 0.3205809 0.31360057 0.3067711 0.30008936 0.29355216 0.2871565 0.28089932 0.2747777 0.26878878 0.26292968 0.25719765 0.25158998 0.24610402 0.24073713 0.23548679 0.23035051 0.22532581 0.22041032 0.21560167 0.21089758 0.20629579 0.2017941 0.19739035 0.19308244 0.18886828 0.18474586 0.1807132 0.17676836 0.17290942 0.16913456 0.16544193 0.16182975 0.1582963 0.15483986 0.15145876 0.14815137 0.14491607 0.14175133 0.1386556 0.13562737 0.1326652 0.12976764 0.12693329 0.12416078 0.121448755 0.11879591 0.116200946 0.11366261 0.11117967 0.108750924 0.10637519 0.10405131 0.10177816 0.09955463 0.09737964 0.095252134 0.09317108 0.09113547 0.089144304 0.08719662 0.08529146 0.083427906 0.08160505 0.079822004 0.0780779 0.07637188 0.07470313 0.073070824 0.071474165 0.06991239 0.06838473 0.06689043 0.06542878 0.06399906 0.06260057 0.06123263 0.059894573 0.05858575 0.05730552 0.05605326 0.054828357 0.053630214 0.05245825 0.05131189 0.05019058

</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="3.15" PeakHeight="256.052" Num="5" zHalfNm="237.818" Error="1.951">
-45.166 4.439 -3.083 1.81 -0.802
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6514.417" A="-1.28301556E11" B="3.9599244E7" C="-3055.372" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6514.417" EndDistance="6548.833" A="0.0" B="-193.25659" C="0.06969617" Error="0.00465"/>
<QuasiParabolic ID="3" StartDistance="6548.833" EndDistance="6551.0" A="1.00156847E12" B="-3.0589152E8" C="23355.814" Error="0.0188"/>
<QuasiParabolic ID="4" StartDistance="6551.0" EndDistance="6556.0" A="-1.66337544E11" B="5.0666564E7" C="-3858.2065" Error="0.0197"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6580.0" A="5.7355244E10" B="-1.7574068E7" C="1346.2346" Error="0.0157"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6582.0" A="-1.21549593E12" B="3.69310784E8" C="-28052.31" Error="0.0031"/>
<QuasiParabolic ID="7" StartDistance="6582.0" EndDistance="6594.0" A="9.7633803E12" B="-2.96671974E9" C="225368.42" Error="0.0178"/>
<QuasiParabolic ID="8" StartDistance="6594.0" EndDistance="6597.0" A="1.48561199E13" B="-4.5113784E9" C="342494.5" Error="0.00265"/>
<QuasiParabolic ID="9" StartDistance="6597.0" EndDistance="6607.0" A="2.90355287E13" B="-8.8101222E9" C="668305.06" Error="0.014"/>
<QuasiParabolic ID="10" StartDistance="6607.0" EndDistance="6609.0" A="1.79612533E13" B="-5.4578371E9" C="414613.1" Error="6.12E-4"/>
<QuasiParabolic ID="11" StartDistance="6609.0" EndDistance="6626.052" A="-2.88209041E13" B="8.6992691E9" C="-656434.44" Error="0.00369"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="103.25" Depth="0.154"/>
<TopsideChapman PeakHeight="256.052" PeakDensity="123107.94" PeakScaleHeight="14.142" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
