<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 22:45:00.000"
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="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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.14 (104) 22:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610404142245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.776" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.856" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="0.175" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="252.901" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="231.387" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.112" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.879" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.252" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.550" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.424" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.480" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.410" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 229.375 231.250 233.125 235.000 237.500 240.000 242.500 245.639 249.090 252.901 257.132 261.857 267.168 273.180 280.042 287.948 297.157
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 0 0 0 69 0 0 66 66 66 69 69 69 69 72 48 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 10.9375 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="324">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 231.387 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0
</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 0.353812 0.35339895 0.35261247 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.38172537 0.42199534 0.46576023 0.51271456 0.5626738 0.61555463 0.67137194 0.7301983 0.79218346 0.8575257 0.92639 0.998999 1.075515 1.1561041 1.2408214 1.3295921 1.422242 1.5183595 1.6173296 1.7182909 1.820202 1.9218254 2.0219193 2.119208 2.212598 2.3011596 2.38415 2.461055 2.531545 2.5954082 2.6525843 2.7030704 2.7468922 2.7841463 2.814906 2.8392603 2.8572786 2.8690228 2.8745348 2.875 2.8743236 2.8703966 2.863132 2.8527184 2.8393447 2.8231993 2.8044682 2.7833345 2.7599773 2.7345712 2.7072856 2.6782842 2.6477244 2.6157575 2.582528 2.5481741 2.512827 2.4766107 2.439643 2.402035 2.363891 2.325309 2.2863812 2.247193 2.2078245 2.16835 2.1288383 2.089353 2.0499535 2.0106936 1.9716227 1.9327867 1.8942268 1.8559809 1.8180829 1.7805637 1.7434509 1.7067691 1.6705405 1.6347841 1.5995171 1.5647542 1.530508 1.4967893 1.463607 1.4309682 1.3988788 1.3673432 1.3363643 1.305944 1.276083 1.2467811 1.2180371 1.1898491 1.1622143 1.1351292 1.1085899 1.0825915 1.0571291 1.0321972 1.0077896 0.98390025 0.96052235 0.937649 0.9152732 0.8933875 0.8719845 0.85105646 0.8305957 0.81059426 0.79104435 0.77193797 0.75326705 0.7350236 0.7171997 0.6997872 0.6827782 0.6661647 0.64993894 0.634093 0.6186191 0.6035096 0.58875686 0.57435334 0.56029165 0.5465644 0.5331644 0.52008444 0.5073176 0.49485686 0.48269546 0.4708267 0.45924395 0.44794083 0.43691087 0.4261479 0.4156458 0.40539855 0.39540023 0.38564506 0.37612742 0.3668417 0.35778254 0.34894454 0.3403225 0.33191136 0.32370606 0.31570172 0.30789357 0.30027696 0.29284725 0.2856 0.2785308 0.2716354 0.2649096 0.2583493 0.2519505 0.24570933 0.23962194 0.2336846 0.22789368 0.2222456 0.21673691 0.2113642 0.20612414 0.20101352 0.19602916 0.19116798 0.18642697 0.18180318 0.17729373 0.17289583 0.16860674 0.1644238 0.16034436 0.15636593 0.152486 0.14870214 0.145012 0.14141326 0.13790368 0.13448106 0.13114324 0.12788814 0.124713734 0.121618 0.11859902 0.11565489 0.11278376 0.109983824 0.10725333 0.10459056 0.10199382 0.0994615 0.09699201 0.09458377 0.09223528 0.08994507 0.08771168 0.08553371 0.08340978 0.08133856 0.07931875 0.07734907 0.07542826 0.07355514 0.07172851 0.06994723 0.068210155 0.066516206 0.06486431 0.06325342 0.061682522 0.060150623 0.05865676 0.05719999 0.055779383 0.05439405 0.053043116 0.051725723 0.050441045

</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="2.875" PeakHeight="231.387" Num="5" zHalfNm="215.112" Error="1.599">
-39.866 1.679 -1.521 0.771 -0.2
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="19" 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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="435.57294" C="-0.026921345" Error="0.00668"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6536.0" A="-4.34428366E12" B="1.32930138E9" C="-101687.73" Error="0.00919"/>
<QuasiParabolic ID="4" StartDistance="6536.0" EndDistance="6544.0" A="3.18287643E11" B="-9.7434032E7" C="7456.656" Error="0.0387"/>
<QuasiParabolic ID="5" StartDistance="6544.0" EndDistance="6552.0" A="-1.15250029E11" B="3.5065256E7" C="-2667.0676" Error="0.0147"/>
<QuasiParabolic ID="6" StartDistance="6552.0" EndDistance="6553.0" A="1.2657547E12" B="-3.86486848E8" C="29502.66" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6553.0" EndDistance="6554.0" A="-1.14784521E12" B="3.501528E8" C="-26703.633" Error="3.99E-11"/>
<QuasiParabolic ID="8" StartDistance="6554.0" EndDistance="6555.0" A="1.26658517E12" B="-3.86627872E8" C="29504.842" Error="3.84E-11"/>
<QuasiParabolic ID="9" StartDistance="6555.0" EndDistance="6556.0" A="-1.14846073E12" B="3.50228224E8" C="-26700.81" Error="3.71E-11"/>
<QuasiParabolic ID="10" StartDistance="6556.0" EndDistance="6557.0" A="1.26741591E12" B="-3.86768928E8" C="29507.025" Error="3.58E-11"/>
<QuasiParabolic ID="11" StartDistance="6557.0" EndDistance="6558.0" A="-1.14911779E12" B="3.50316224E8" C="-26698.947" Error="0.0"/>
<QuasiParabolic ID="12" StartDistance="6558.0" EndDistance="6559.0" A="1.26832961E12" B="-3.869352E8" C="29511.133" Error="0.0"/>
<QuasiParabolic ID="13" StartDistance="6559.0" EndDistance="6560.0" A="-1.14978862E12" B="3.50408384E8" C="-26697.402" Error="3.23E-11"/>
<QuasiParabolic ID="14" StartDistance="6560.0" EndDistance="6561.0" A="1.26918866E12" B="-3.87084704E8" C="29513.959" Error="0.0"/>
<QuasiParabolic ID="15" StartDistance="6561.0" EndDistance="6562.0" A="6.8663504E12" B="-2.09327629E9" C="159539.23" Error="0.0"/>
<QuasiParabolic ID="16" StartDistance="6562.0" EndDistance="6572.0" A="9.0579896E12" B="-2.76125542E9" C="210436.75" Error="0.0392"/>
<QuasiParabolic ID="17" StartDistance="6572.0" EndDistance="6588.0" A="2.02228095E13" B="-6.1589489E9" C="468934.44" Error="0.0273"/>
<QuasiParabolic ID="18" StartDistance="6588.0" EndDistance="6601.387" A="-3.19379284E13" B="9.6761272E9" C="-732877.6" Error="0.0106"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="231.387" PeakDensity="102551.18" PeakScaleHeight="12.424" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
