<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-16 -136 20:45:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.16 (136) 20:45:00</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">
FF202613605162045001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.152" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.499" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.725" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.725" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="195.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="195.000" 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="86" Val="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="228.212" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.154" 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="198.059" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="181.034" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.145" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.300" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.586" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.413" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.160" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.960" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="128">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 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 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 197.500 197.500 197.000 196.500 196.000 195.500 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 198.750 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 212.500 212.500 212.500 215.000 215.000 215.000 217.500 217.500 217.500 220.000 222.500 225.000 225.000 226.412 228.212 230.587 233.863 238.673 246.426 261.010 298.564
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
27 27 30 33 0 0 0 0 33 36 51 51 63 63 87 87 78 78 78 78 78 78 90 87 75 75 78 78 90 90 66 63 66 66 63 63 60 60 60 63 60 57 54 54 66 66 93 93 93 93 81 81 84 84 84 84 84 84 84 87 75 75 72 72 72 72 72 72 45 45 45 45 69 72 96 96 84 84 84 84 66 69 81 84 84 84 108 108 108 102 93 93 93 96 93 93 81 78 105 108 96 96 81 81 84 84 93 93 93 93 102 105 90 90 93 90 90 90 96 102 90 87 87 87 87 84 66 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 -21.875 -21.875 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 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 -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 -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 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 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 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 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="339">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.134 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 126.03233 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.06467 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 158.097 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 198.059 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.33275878 0.50360847 0.61493796 0.69969285 0.76927805 0.82853377 0.87996393 0.9250568 0.9647697 0.9997826 1.0305527 1.0574324 1.0806843 1.1005124 1.1170706 1.1304728 1.1408119 1.148153 1.1525403 1.154 1.1532353 1.150897 1.1470248 1.1415389 1.1345322 1.1258476 1.1155288 1.1036098 1.0899032 1.0743643 1.0570858 1.03781 1.0165126 0.99312747 0.96742105 0.93923545 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.938 0.9506015 0.9640743 0.9775471 0.99101985 1.0044926 1.0179654 1.0314382 1.0449109 1.0583837 1.0718565 1.0853293 1.0988021 1.1122748 1.1257476 1.1392204 1.1526932 1.154 1.236756 1.3422439 1.457064 1.5753982 1.6936655 1.810624 1.926296 2.0412276 2.156103 2.2717001 2.3887246 2.5079083 2.6300085 2.7556968 2.8857896 3.0210328 3.1622005 3.3101275 3.465474 3.6288505 3.8004274 3.9798021 4.165622 4.3552136 4.5447764 4.7295647 4.904908 5.067103 5.213841 5.3442965 5.4585476 5.557365 5.641717 5.7126484 5.77111 5.8179336 5.8537827 5.8791876 5.894515 5.899983 5.9 5.897206 5.888302 5.873582 5.8533545 5.827928 5.7976093 5.762702 5.723506 5.6803145 5.633415 5.583087 5.529601 5.47322 5.4141955 5.3527718 5.289181 5.2236466 5.156381 5.0875864 5.0174556 4.94617 4.873902 4.8008146 4.7270603 4.6527834 4.578118 4.503191 4.4281197 4.353014 4.277976 4.2031007 4.1284757 4.0541816 3.9802928 3.9068782 3.8340008 3.761717 3.69008 3.6191359 3.548928 3.4794946 3.4108698 3.3430843 3.276165 3.2101352 3.1450157 3.0808237 3.017574 2.9552796 2.8939495 2.8335922 2.7742128 2.7158158 2.6584032 2.6019754 2.5465317 2.4920695 2.4385858 2.3860757 2.3345337 2.2839532 2.2343268 2.1856463 2.137903 2.0910869 2.0451884 2.0001967 1.9561011 1.9128898 1.8705515 1.8290738 1.7884446 1.7486515 1.7096817 1.6715226 1.6341611 1.5975844 1.5617791 1.5267326 1.4924315 1.458863 1.4260137 1.393871 1.3624216 1.331653 1.3015523 1.2721066 1.2433038 1.2151312 1.1875764 1.1606275 1.1342722 1.1084989 1.0832957 1.0586512 1.0345538 1.0109923 0.98795575 0.9654332 0.94341385 0.9218873 0.90084296 0.88027084 0.8601607 0.84050286 0.8212876 0.8025053 0.7841467 0.7662027 0.74866426 0.7315225 0.7147688 0.6983947 0.6823919 0.66675216 0.6514675 0.63653016 0.6219324 0.6076667 0.5937257 0.5801022 0.5667891 0.5537794 0.5410665 0.5286436 0.51650435 0.50464225 0.49305114 0.48172492 0.47065762 0.45984343 0.4492766 0.43895158 0.42886287 0.4190052 0.40937325 0.39996195 0.3907663 0.3817814 0.37300244 0.3644248 0.35604385 0.34785515 0.3398543 0.33203703 0.32439917 0.31693664 0.30964538 0.30252156 0.2955613 0.2887609 0.2821167 0.2756251 0.26928267 0.26308596 0.25703165 0.25111645 0.24533723 0.23969084 0.23417424 0.22878447 0.22351861 0.21837384 0.21334735 0.20843646 0.20363851 0.19895092 0.19437112 0.18989669 0.18552516 0.18125421 0.17708151 0.1730048 0.1690219 0.16513063 0.1613289 0.15761465 0.15398586 0.15044059 0.14697689 0.14359291 0.1402868 0.1370568 0.13390112 0.13081808 0.127806 0.124863245 0.12198823 0.11917939 0.11643521 0.1137542 0.111134894 0.108575895 0.10607581 0.10363327 0.10124696 0.09891559 0.09663789 0.09441263 0.092238605 0.09011462 0.08803955 0.08601225 0.08403163 0.0820966 0.080206126 0.07835919 0.07655477 0.07479189 0.07306961 0.071386985 0.0697431 0.068137065 0.06656801 0.06503509 0.06353746 0.06207432 0.060644865 0.05924833 0.057883948 0.056550987 0.05524872 0.053976435 0.05273345 0.051519085 0.050332688

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.154" PeakHeight="110.0" Num="3" Error="0.0">
-27.122 8.684 -1.428
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.154" EndFrequency="5.9" PeakHeight="198.059" Num="5" zHalfNm="181.034" Error="1.023">
-39.663 0.366 -1.838 1.852 -0.679
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.962" EndDistance="6480.001" A="-5.8129263E12" B="1.79411302E9" C="-138433.31" Error="0.0156"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6496.032" A="-3.12136093E12" B="9.6338298E8" C="-74333.77" Error="0.00102"/>
<QuasiParabolic ID="2" StartDistance="6496.032" EndDistance="6512.065" A="0.0" B="8529.772" C="-0.4341234" Error="0.00469"/>
<QuasiParabolic ID="3" StartDistance="6512.065" EndDistance="6514.0" A="-2.35498405E13" B="7.2301548E9" C="-554940.56" Error="0.018"/>
<QuasiParabolic ID="4" StartDistance="6514.0" EndDistance="6520.0" A="4.44859E12" B="-1.36623194E9" C="104898.76" Error="0.0187"/>
<QuasiParabolic ID="5" StartDistance="6520.0" EndDistance="6527.0" A="-2.40371158E12" B="7.3570106E8" C="-56292.42" Error="0.00787"/>
<QuasiParabolic ID="6" StartDistance="6527.0" EndDistance="6531.0" A="8.5356704E13" B="-2.61558006E10" C="2003727.6" Error="0.0194"/>
<QuasiParabolic ID="7" StartDistance="6531.0" EndDistance="6533.0" A="-1.06106087E13" B="3.23244416E9" C="-246176.27" Error="0.0104"/>
<QuasiParabolic ID="8" StartDistance="6533.0" EndDistance="6541.0" A="2.90362816E13" B="-8.9049784E9" C="682755.5" Error="0.00589"/>
<QuasiParabolic ID="9" StartDistance="6541.0" EndDistance="6554.0" A="8.0952089E13" B="-2.47789445E10" C="1896176.0" Error="0.018"/>
<QuasiParabolic ID="10" StartDistance="6554.0" EndDistance="6568.059" A="-1.16100021E14" B="3.5352916E10" C="-2691241.0" Error="0.00441"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="48.097" Depth="0.216"/>
<TopsideChapman PeakHeight="198.059" PeakDensity="431885.84" PeakScaleHeight="13.413" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
