<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-17 -076 06:00:00.000"
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: 40% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.17 (076) 06:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607603170600001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.903" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.978" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="5.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="257.739" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.400" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.400" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="229.943" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="214.595" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.643" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.434" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.771" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.437" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.270" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.770" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="121">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 218.000 218.500 219.000 219.500 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 223.333 224.167 225.000 225.000 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 228.750 230.000 230.000 230.000 230.000 230.000 230.000 230.000 230.000 231.250 232.500 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 235.000 235.000 237.500 237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 245.000 245.000 245.000 245.000 247.500 247.500 247.500 247.500 250.000 252.500 252.641 252.800 252.982 253.192 253.435 253.722 254.065 254.482 255.000 255.661 256.534 257.739 259.513 262.379 267.797 281.909
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 0 0 84 81 72 0 72 75 0 75 78 75 69 72 75 78 48 0 0 0 0 57 75 75 87 87 87 78 81 87 102 99 87 87 0 90 0 0 93 93 96 93 81 84 87 90 72 0 69 69 66 0 60 0 0 0 0 87 0 99 0 96 102 102 102 102 105 105 90 90 90 84 78 84 96 96 93 87 0 90 69 69 69 60 0 63 93 93 105 105 93 84 81 87 87 93 93 90 66 66 102 102 90 96 99 102 63 66 66 60 54 57 99 105 90 96 108 105 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 -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 4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="330">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 229.943 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0
</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 0.35317364 0.35223874 0.35086352 0.34905878 0.3468389 0.3442219 0.3411586 0.33767787 0.33367795 0.32927206 0.3243802 0.3189446 0.3129916 0.30645373 0.29930657 0.29149976 0.28296635 0.27368933 0.26350668 0.2523124 0.24007721 0.22657463 0.21160045 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 0.20628572 0.21257143 0.21885714 0.22514285 0.23142858 0.23771429 0.244 0.2502857 0.25657144 0.26285714 0.26914287 0.27542856 0.2817143 0.288 0.2942857 0.30057144 0.30685714 0.31314287 0.31942856 0.3257143 0.332 0.3382857 0.34457144 0.35085714 0.354 0.37848788 0.4291403 0.48292056 0.5405949 0.60276216 0.66988266 0.74228734 0.8202049 0.9037273 0.99286485 1.0874636 1.187364 1.2922848 1.401897 1.5159018 1.6339666 1.7557831 1.8810054 2.0094125 2.140701 2.2746656 2.4110763 2.549739 2.690407 2.832899 2.9770017 3.1224856 3.269111 3.4165866 3.5645974 3.7127202 3.8605945 4.0076075 4.1532226 4.296661 4.4370475 4.573341 4.704374 4.8287244 4.9448547 5.0509734 5.145231 5.225644 5.2903585 5.337639 5.366132 5.375 5.374987 5.3706036 5.358664 5.3396196 5.313923 5.2820263 5.244376 5.2014117 5.153563 5.1012464 5.0448656 4.984809 4.921449 4.8551407 4.7862225 4.715015 4.641821 4.566926 4.490598 4.4130883 4.3346305 4.255443 4.175729 4.0956745 4.0154533 3.935225 3.855135 3.7753172 3.6958935 3.6169746 3.5386605 3.461042 3.3841996 3.3082063 3.2331262 3.1590164 3.0859268 3.0139005 2.9429753 2.8731828 2.8045497 2.737098 2.6708455 2.6058059 2.541989 2.4794016 2.4180472 2.357927 2.2990391 2.2413795 2.1849427 2.1297204 2.0757036 2.022881 1.9712405 1.9207689 1.8714515 1.8232732 1.7762177 1.7302685 1.685408 1.6416185 1.5988818 1.5571796 1.5164926 1.4768022 1.4380894 1.4003346 1.363519 1.327623 1.2926278 1.2585142 1.2252631 1.192856 1.1612738 1.1304984 1.1005113 1.0712947 1.0428305 1.0151014 0.98809 0.9617792 0.9361524 0.911193 0.886885 0.86321235 0.8401596 0.8177114 0.7958528 0.77456903 0.7538459 0.7336691 0.7140251 0.69490016 0.67628133 0.65815556 0.64051026 0.6233332 0.60661227 0.5903357 0.5744921 0.55907017 0.544059 0.52944785 0.5152263 0.5013843 0.4879118 0.47479916 0.46203694 0.44961593 0.43752715 0.42576185 0.41431147 0.40316775 0.3923225 0.38176793 0.37149623 0.36149997 0.3517718 0.34230462 0.33309147 0.32412562 0.31540048 0.30690962 0.2986468 0.29060596 0.28278115 0.27516663 0.26775673 0.26054603 0.2535292 0.24670102 0.24005647 0.23359063 0.2272987 0.22117603 0.2152181 0.20942046 0.20377883 0.19828904 0.19294699 0.18774872 0.18269038 0.1777682 0.17297855 0.16831784 0.16378263 0.15936953 0.15507527 0.15089665 0.14683056 0.14287399 0.13902396 0.13527764 0.13163222 0.128085 0.12463333 0.12127464 0.11800643 0.11482626 0.11173177 0.108720645 0.10579065 0.10293959 0.10016535 0.09746586 0.094839096 0.092283115 0.089796 0.08737591 0.08502103 0.0827296 0.08049992 0.078330316 0.076219186 0.07416494 0.07216606 0.070221044 0.06832844 0.06648684 0.064694874 0.0629512 0.061254513 0.059603553 0.05799709 0.056433916 0.054912873 0.053432826 0.051992662 0.050591316

</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="5.375" PeakHeight="229.943" Num="5" zHalfNm="214.595" Error="0.427">
-44.859 -3.192 2.265 -0.907 0.25
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="654.60834" C="-0.06063043" Error="0.00922"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6531.0" A="-1.67489438E12" B="5.12827968E8" C="-39255.043" Error="0.0392"/>
<QuasiParabolic ID="4" StartDistance="6531.0" EndDistance="6549.0" A="1.48429849E11" B="-4.5531912E7" C="3491.8462" Error="0.0395"/>
<QuasiParabolic ID="5" StartDistance="6549.0" EndDistance="6552.0" A="-7.5884659E11" B="2.3154136E8" C="-17662.016" Error="0.00484"/>
<QuasiParabolic ID="6" StartDistance="6552.0" EndDistance="6557.0" A="1.20816266E13" B="-3.6880169E9" C="281449.56" Error="0.028"/>
<QuasiParabolic ID="7" StartDistance="6557.0" EndDistance="6560.0" A="1.17662265E13" B="-3.5918144E9" C="274113.72" Error="0.00767"/>
<QuasiParabolic ID="8" StartDistance="6560.0" EndDistance="6566.0" A="2.47885925E13" B="-7.562048E9" C="576723.0" Error="0.00474"/>
<QuasiParabolic ID="9" StartDistance="6566.0" EndDistance="6581.0" A="4.2524329E13" B="-1.29643438E10" C="988107.06" Error="0.0154"/>
<QuasiParabolic ID="10" StartDistance="6581.0" EndDistance="6593.0" A="2.91813647E13" B="-8.9093478E9" C="680023.5" Error="0.0186"/>
<QuasiParabolic ID="11" StartDistance="6593.0" EndDistance="6599.943" A="-1.78995681E14" B="5.4241583E10" C="-4109217.5" Error="0.00483"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="229.943" PeakDensity="358444.47" PeakScaleHeight="11.437" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
