<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 00:20:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 35% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.26 (146) 00:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202614605260020001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="28" >
<URSI ID="00" Val="3.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.802" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.403" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.275" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="3.575" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="105.000" Name="h`Es" 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="3.425" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="264.973" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="241.979" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.964" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.815" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.275" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="94" Val="21.533" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.759" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.445" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.030" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.330" Name="B1" QL="/" DL="/" />
<URSI ID="32" Val="2.975" Name="fbEs" Units="MHz" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="23">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 245.000 245.000 246.250 247.500 250.000 250.000 251.250 252.500 252.500 253.049 253.687 254.439 255.338 256.431 257.790 259.523 261.812 264.973 269.622 277.138 291.346 328.366
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 93 93 90 96 102 93 90 99 99 102 102 99 99 99 96 96 96 93 87 0 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 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 4.6875 -1.5625 -4.6875
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 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 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 107.500 105.000 105.000 105.000 106.250 107.500 107.500 107.679 107.857 108.036 108.214 108.393 108.571 108.750 108.929 109.107 109.286 109.464 109.643 109.821 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 0 0 0 81 84 90 90 81 81 84 81 84 84 84 87 87 87 84 84 72 69 45 45 0 66 84 0 0 0 0 0 0 0 0 0 87 0 0 0 87 87 0 0 0 90 0 0 72 72 96 96 87
</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 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 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 -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 -1.5625 1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="327">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 241.979 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0
</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 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.37345102 0.41792116 0.46976426 0.5283763 0.5927797 0.6620853 0.7357157 0.8134216 0.8951587 0.9810732 1.0713427 1.1662714 1.2660934 1.3710145 1.4811854 1.5965741 1.7169536 1.8419024 1.9706208 2.102042 2.234706 2.367031 2.4972355 2.6235733 2.7444906 2.8586206 2.9649184 3.0626352 3.1512759 3.2305188 3.3002658 3.3604684 3.4111764 3.4524639 3.484411 3.507111 3.520626 3.525 3.524999 3.5223117 3.5146654 3.5023549 3.4856768 3.4649265 3.440397 3.4123757 3.3811443 3.3469758 3.310135 3.2708757 3.2294426 3.1860688 3.140976 3.0943744 3.046463 2.9974291 2.9474487 2.8966863 2.8452961 2.793421 2.7411942 2.6887388 2.6361687 2.5835884 2.5310938 2.4787729 2.4267058 2.3749657 2.323618 2.2727225 2.2223327 2.172496 2.1232553 2.074648 2.0267065 1.9794601 1.9329333 1.8871471 1.8421192 1.7978643 1.7543939 1.7117174 1.6698413 1.6287701 1.5885063 1.5490508 1.5104024 1.4725587 1.4355161 1.3992693 1.3638124 1.3291382 1.2952387 1.2621055 1.2297288 1.1980988 1.1672051 1.1370366 1.1075821 1.0788299 1.0507681 1.0233847 0.99666727 0.97060347 0.94518083 0.92038673 0.89620864 0.872634 0.8496502 0.8272449 0.8054055 0.7841198 0.7633755 0.74316055 0.723463 0.70427096 0.68557286 0.6673571 0.6496124 0.6323276 0.6154917 0.5990939 0.5831237 0.5675705 0.5524243 0.53767496 0.5233127 0.5093278 0.49571094 0.48245287 0.46954453 0.45697707 0.44474187 0.43283045 0.42123455 0.40994605 0.39895713 0.38826004 0.37784722 0.36771134 0.35784522 0.34824184 0.33889434 0.32979608 0.32094055 0.31232136 0.30393234 0.29576746 0.2878208 0.2800866 0.27255931 0.26523343 0.25810364 0.2511648 0.2444118 0.23783973 0.23144381 0.22521935 0.21916181 0.21326673 0.20752981 0.20194682 0.19651368 0.19122638 0.18608104 0.18107386 0.17620116 0.17145936 0.16684495 0.16235451 0.15798476 0.15373245 0.14959443 0.14556766 0.14164914 0.13783598 0.13412537 0.13051453 0.12700081 0.1235816 0.12025436 0.11701663 0.113866 0.11080014 0.10781677 0.104913674 0.1020887 0.099339746 0.09666477 0.094061784 0.091528855 0.08906411 0.0866657 0.08433185 0.082060814 0.07985093 0.07770052 0.07560801 0.07357183 0.07159047 0.06966245 0.06778635 0.06596076 0.064184316 0.062455706 0.06077364 0.05913687 0.05754417 0.055994358 0.05448628 0.05301881 0.051590856 0.050201356

</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="3.525" PeakHeight="241.979" Num="5" zHalfNm="226.964" Error="0.638">
-38.342 1.645 -1.172 0.684 -0.294
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="-1914.6246" C="0.33406216" Error="0.036"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6571.0" A="7.0711206E10" B="-2.1679038E7" C="1661.6467" Error="0.036"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6573.0" A="-1.48521628E12" B="4.51895008E8" C="-34373.51" Error="0.00334"/>
<QuasiParabolic ID="5" StartDistance="6573.0" EndDistance="6579.0" A="1.20018373E13" B="-3.65187917E9" C="277795.53" Error="0.0344"/>
<QuasiParabolic ID="6" StartDistance="6579.0" EndDistance="6580.0" A="1.70179565E13" B="-5.176767E9" C="393686.06" Error="1.66E-10"/>
<QuasiParabolic ID="7" StartDistance="6580.0" EndDistance="6584.0" A="1.62735157E13" B="-4.9504932E9" C="376492.03" Error="0.00286"/>
<QuasiParabolic ID="8" StartDistance="6584.0" EndDistance="6600.0" A="3.32045998E13" B="-1.00935936E10" C="767067.6" Error="0.0266"/>
<QuasiParabolic ID="9" StartDistance="6600.0" EndDistance="6611.979" A="-5.7546199E13" B="1.74066483E10" C="-1316284.0" Error="0.0101"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="241.979" PeakDensity="154164.08" PeakScaleHeight="11.445" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
