<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-14 -045 22:00:00.000"
URSICode="SAA0K"
StationName="SaoLuis"
GeoLatitude="-2.6"
GeoLongitude="315.8"
Source="Ionosonde"
SourceType="DPS-4"
ScalerType="auto">
<SystemInfo UMLStationID="903">
<FrequencyStepping StartFrequency="1.0" StopFrequency="18.0">
<LinearStepping Step="0.05" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="5.0" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 60% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<ContactPerson>
<Name>Dr. Mangalathayil Ali Abdu</Name>
<Affiliation>INPE, Division of Aeronomy</Affiliation>
<Address>Av dos Astronautas, 1.758 Jd. Granja - CEP: 12227-010 Sao Jose dos Campos - SP Brasil</Address>
<Email>maabdu@dae.inpe.br</Email>
</ContactPerson>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.14 (045) 22:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.14" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-19.74" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="-1.0" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202604502142200009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="8.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.320" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.558" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="390.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="390.000" 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="0.700" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="595.961" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.408" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="485.910" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="396.819" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.910" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="131.016" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="22.670" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="66.526" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="135.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.740" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3 4.35 4.4 4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6.0 6.05 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8 7.85 7.9 7.95 8.0
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
390.000 390.000 392.500 395.000 395.000 396.667 398.333 400.000 401.667 403.333 405.000 405.000 405.000 405.000 405.000 410.000 412.203 414.407 416.610 418.814 421.017 423.220 425.424 427.627 429.831 432.034 434.237 436.441 438.644 440.847 443.051 445.254 447.458 449.661 451.864 454.068 456.271 458.475 460.678 462.881 465.085 467.288 469.492 471.695 473.898 476.102 478.305 480.508 482.712 484.915 487.119 489.322 491.525 493.729 495.932 498.136 500.339 502.542 504.746 506.949 509.153 511.356 513.559 515.763 517.966 520.169 522.373 524.576 526.780 528.983 531.186 533.390 535.593 537.797 540.000 540.000 543.889 547.778 551.667 555.556 559.444 563.333 567.222 571.111 575.000 580.000 580.000 580.000 584.269 589.474 595.961 604.269 615.291 630.616 653.374 690.705 763.205
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 66 0 60 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 54 0 0 0 0 0 0 0 0 57 54 60 60 63 66 57 54 54 57 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.171875 -0.390625 -2.734375 -2.734375 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 0.390625 -1.171875 0.390625 -1.171875 -0.390625 0.390625 -1.953125 -1.171875 -0.390625 -2.734375 -1.171875 -2.734375 -1.171875 -2.734375 -1.953125 -1.171875 -1.953125 -0.390625 2.734375 1.171875 -0.390625 0.390625 1.953125 1.171875 1.171875 -1.953125 0.390625 -1.171875 -1.953125 0.390625 -1.171875 -1.953125 2.734375 2.734375 1.171875 -0.390625 2.734375 2.734375 0.390625 2.734375 -1.953125 -2.734375 -2.734375 2.734375 -1.171875 2.734375 1.953125 2.734375 -2.734375 1.953125 -1.171875 2.734375 -1.171875 0.390625 -1.171875 -1.171875 0.390625 -1.171875 -1.171875 2.734375 -1.953125 2.734375 2.734375 0.390625 1.953125 2.734375 1.171875 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 0.390625 -1.171875 1.171875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="187">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.562 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 139.208 140.0 145.0 150.0 155.0 160.0 165.0 168.415 170.0 175.0 180.0 185.0 190.0 195.0 197.623 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 485.91 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.27 0.353 0.395 0.408 0.403 0.389 0.365 0.327 0.271 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.211 0.247 0.282 0.318 0.354 0.389 0.408 0.432 0.483 0.537 0.594 0.655 0.72 0.789 0.863 0.942 1.026 1.116 1.21 1.311 1.417 1.528 1.645 1.767 1.894 2.025 2.162 2.303 2.448 2.597 2.751 2.908 3.068 3.232 3.399 3.57 3.743 3.918 4.097 4.278 4.461 4.645 4.832 5.02 5.208 5.398 5.588 5.777 5.966 6.153 6.339 6.521 6.699 6.871 7.038 7.197 7.346 7.484 7.61 7.72 7.815 7.892 7.948 7.985 8.0 8.0 7.997 7.986 7.967 7.94 7.905 7.865 7.817 7.764 7.705 7.641 7.573 7.5 7.423 7.342 7.258 7.171 7.082 6.99 6.896 6.8 6.702 6.603 6.503 6.403 6.301 6.199 6.096 5.994 5.891 5.789 5.686 5.584 5.483 5.382 5.282 5.182 5.084 4.986 4.889 4.793 4.699 4.605 4.513 4.421 4.331 4.243 4.155 4.069 3.984 3.901 3.819 3.738 3.659 3.581 3.504 3.428 3.354 3.282 3.21 3.141 3.072 3.005 2.938 2.874 2.81 2.748 2.687 2.627 2.569 2.511 2.455 2.4 2.346 2.293 2.242 2.191 2.142 2.093 2.046 2.0 1.954 1.91 1.867 1.824 1.782 1.742 1.702 1.663 1.625 1.588 1.552 1.516 1.481 1.447 1.414 1.382 1.35 1.319 1.289 1.259 1.23 1.202 1.174

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.408" PeakHeight="110.0" Num="3" Error="0.0">
-20.423 3.218 -0.233
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.408" EndFrequency="8.0" PeakHeight="485.91" Num="5" zHalfNm="396.819" Error="1.947">
-276.467 -22.133 14.026 -5.257 1.544
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="87.623" Depth="0.208"/>
<TopsideChapman PeakHeight="485.91" PeakDensity="794044.7" PeakScaleHeight="66.526" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
