<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-04 -035 04:35:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 20% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.04 (035) 04:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202603502040435001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="8.175" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.575" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.224" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="270.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="270.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="8.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="308.509" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="282.384" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="266.073" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.399" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.998" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.371" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.686" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.480" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.370" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="140">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875 6.9 6.925 6.95 6.975 7.0 7.025 7.05 7.075 7.1 7.125 7.15 7.175 7.2 7.225 7.25 7.275 7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675 7.7 7.725 7.75 7.775 7.8 7.825 7.85 7.875 7.9 7.925 7.95 7.975 8.0 8.025 8.05 8.075 8.1 8.125 8.15 8.175
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 280.000 281.250 282.500 285.000 285.000 285.000 285.000 287.500 290.000 297.500 300.000 302.500 302.500 297.500 300.000 270.000 270.000 302.500 288.750 275.000 277.500 280.000 278.750 277.500 272.500 275.000 276.875 278.750 280.625 282.500 284.375 286.250 288.125 290.000 291.875 293.750 295.625 297.500 299.375 301.250 303.125 305.000 302.500 300.000 300.000 300.000 301.250 302.500 301.250 300.000 299.583 299.167 298.750 298.333 297.917 297.500 297.500 297.500 297.500 296.250 295.000 294.583 294.167 293.750 293.333 292.917 292.500 295.000 295.000 295.500 296.000 296.500 297.000 297.500 298.750 300.000 300.833 301.667 310.000 310.345 310.690 311.034 311.379 311.724 312.069 312.414 312.759 313.103 313.448 313.793 314.138 314.483 314.828 315.172 315.517 315.862 316.207 316.552 316.897 317.241 317.586 317.931 318.276 318.621 318.966 319.310 319.655 320.000 321.250 322.500 320.417 318.333 316.250 314.167 312.083 310.000 308.333 306.667 305.000 305.735 306.471 306.488 306.507 306.529 306.554 306.583 306.616 306.656 306.703 306.760 306.830 306.920 307.038 307.200 307.436 307.813 308.509 310.231 321.574
</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 0 0 0 0 0 0 0 0 0 0 0 0 63 60 63 57 60 60 0 0 0 0 0 0 0 60 0 0 0 0 0 0 57 0 0 0 0 0 0 0 0 60 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 93 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 93 0 93 90 90 0 57 57 0 0 0 0 0 0 93 0 0 0 96 96 0 57 90 90 0 57 54
</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 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 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="403">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.69733 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.39467 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.092 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 282.384 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0
</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 0.35250106 0.35164472 0.35064512 0.34943143 0.34800863 0.34638256 0.3445599 0.34254822 0.3403557 0.33792278 0.33532998 0.33245555 0.32938346 0.32606673 0.3225273 0.3187282 0.3146991 0.31035867 0.3057514 0.3008718 0.29570013 0.2902329 0.28437304 0.27815217 0.27155045 0.26452816 0.2569978 0.24906597 0.24058484 0.23142946 0.22169983 0.21131612 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 0.2 0.20261143 0.20692548 0.21123953 0.21555358 0.21986763 0.22418168 0.22849572 0.23280977 0.23712382 0.24143787 0.24575192 0.25006595 0.25438002 0.25869405 0.26300812 0.26732215 0.2716362 0.27595025 0.2802643 0.28457835 0.2888924 0.29320645 0.2975205 0.30183452 0.3061486 0.31046262 0.3147767 0.31909072 0.32340476 0.32771882 0.33203286 0.33634692 0.34066096 0.34497502 0.34928906 0.3536031 0.354 0.42048675 0.47243118 0.5210306 0.56980515 0.6203867 0.673874 0.7311889 0.7931771 0.8606752 0.93442005 1.0150584 1.103061 1.1985877 1.3014199 1.4109434 1.5262562 1.6461723 1.769579 1.8953446 2.0225935 2.1506436 2.27897 2.4072618 2.5352924 2.6629553 2.7901883 2.9170315 3.0434744 3.1696172 3.2955232 3.421259 3.546928 3.6726294 3.7984548 3.9245036 4.050878 4.177649 4.304945 4.4328523 4.5615 4.6909633 4.82137 4.952806 5.085409 5.2192965 5.3545976 5.4914303 5.6299577 5.7702656 5.912599 6.0570374 6.2038236 6.3530693 6.5049987 6.6597776 6.817575 6.978471 7.1424603 7.309309 7.4783363 7.6478252 7.8141437 7.9692435 8.096685 8.168518 8.175 8.172806 8.160177 8.136885 8.103574 8.060889 8.009474 7.949959 7.8829665 7.809101 7.7289505 7.6430826 7.5520425 7.456354 7.3565164 7.2530046 7.1462693 7.0367365 6.924808 6.810861 6.6952496 6.5783033 6.460331 6.3416185 6.222431 6.1030145 5.9835944 5.8643794 5.745559 5.627308 5.5097847 5.393132 5.2774816 5.1629486 5.049639 4.937646 4.8270526 4.7179313 4.6103463 4.5043526 4.3999977 4.2973213 4.1963577 4.0971327 3.9996681 3.9039803 3.8100803 3.7179751 3.6276674 3.5391567 3.4524386 3.3675063 3.28435 3.202957 3.1233132 3.0454023 2.9692059 2.8947043 2.821877 2.750701 2.6811535 2.6132104 2.5468466 2.4820364 2.418754 2.356973 2.296666 2.2378063 2.1803668 2.12432 2.0696383 2.0162945 1.9642613 1.9135114 1.864018 1.8157539 1.7686929 1.7228082 1.6780742 1.6344649 1.5919548 1.5505191 1.5101328 1.4707718 1.4324119 1.3950298 1.3586022 1.3231063 1.28852 1.2548211 1.2219883 1.1900004 1.158837 1.1284776 1.0989023 1.0700921 1.0420276 1.0146905 0.9880625 0.96212584 0.9368631 0.91225743 0.88829213 0.86495095 0.8422182 0.82007825 0.7985161 0.77751696 0.7570664 0.73715043 0.7177553 0.6988677 0.6804744 0.6625628 0.64512044 0.6281352 0.6115952 0.595489 0.5798054 0.5645333 0.5496621 0.5351814 0.521081 0.507351 0.49398175 0.4809639 0.46828824 0.45594585 0.44392806 0.43222633 0.42083246 0.40973836 0.39893618 0.38841832 0.37817731 0.3682059 0.35849702 0.3490438 0.3398395 0.33087763 0.3221518 0.31365585 0.3053837 0.29732955 0.28948757 0.28185225 0.27441812 0.26717994 0.26013252 0.25327086 0.24659006 0.24008538 0.23375218 0.22758594 0.22158226 0.2157369 0.21004564 0.20450446 0.19910939 0.19385658 0.18874231 0.1837629 0.17891482 0.17419459 0.16959885 0.16512433 0.16076781 0.15652621 0.15239649 0.14837569 0.14446095 0.14064948 0.13693854 0.1333255 0.12980777 0.12638284 0.12304826 0.11980164 0.11664067 0.1135631 0.11056671 0.10764937 0.104809 0.10204357 0.099351086 0.09672964 0.094177365 0.091692425 0.08927304 0.08691749 0.08462409 0.082391195 0.08021722 0.0781006 0.07603982 0.07403342 0.07207996 0.07017803 0.068326294 0.06652341 0.0647681 0.0630591 0.06139519 0.05977519 0.05819793 0.056662288 0.055167165 0.053711493 0.05229423 0.05091436

</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="8.175" PeakHeight="282.384" Num="5" zHalfNm="266.073" Error="2.097">
-58.377 -14.635 11.55 -5.966 2.136
</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="6515.697" A="-1.19301186E11" B="3.6821352E7" C="-2841.0283" Error="0.00172"/>
<QuasiParabolic ID="2" StartDistance="6515.697" EndDistance="6551.395" A="0.0" B="-2940.426" C="0.49132153" Error="0.0624"/>
<QuasiParabolic ID="3" StartDistance="6551.395" EndDistance="6586.0" A="7.5688157E10" B="-2.3149596E7" C="1770.1409" Error="0.0624"/>
<QuasiParabolic ID="4" StartDistance="6586.0" EndDistance="6600.0" A="1.22313779E13" B="-3.71452211E9" C="282014.03" Error="0.122"/>
<QuasiParabolic ID="5" StartDistance="6600.0" EndDistance="6603.0" A="6.1877183E13" B="-1.87587052E10" C="1421724.9" Error="0.0216"/>
<QuasiParabolic ID="6" StartDistance="6603.0" EndDistance="6638.0" A="3.35890937E13" B="-1.01904517E10" C="772909.7" Error="0.0325"/>
<QuasiParabolic ID="7" StartDistance="6638.0" EndDistance="6650.0" A="1.00670863E14" B="-3.04018924E10" C="2295314.0" Error="0.00854"/>
<QuasiParabolic ID="8" StartDistance="6650.0" EndDistance="6652.384" A="-1.15922107E15" B="3.48512944E11" C="-2.6194524E7" Error="0.00214"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.092" Depth="0.154"/>
<TopsideChapman PeakHeight="282.384" PeakDensity="829164.06" PeakScaleHeight="11.686" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
