<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-06 -065 03:45:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 20% PACIFIC flags: F2x cusp not found, 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" >
2026.03.06 (065) 03:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202606503060345001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="4.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.830" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.469" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.525" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.525" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="272.578" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.180" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="242.615" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.998" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="17.509" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.038" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.370" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.080" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="72">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 255.000 255.000 255.000 255.000 255.000 255.000 255.417 255.833 256.250 256.667 257.083 257.500 257.500 257.500 257.500 252.500 247.500 253.750 260.000 262.500 267.500 272.500 277.500 282.500 285.000 287.000 289.000 291.000 293.000 295.000 297.500 300.000 300.000 297.500 295.000 292.500 290.000 287.500 285.000 282.500 280.000 277.500 275.000 272.500 270.000 267.500 266.250 265.000 265.000 265.080 265.171 265.275 265.397 265.541 265.712 265.920 266.180 266.510 266.946 267.549 268.436 269.869 272.578 279.634
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 63 69 0 0 66 66 66 54 57 42 42 0 0 0 0 0 90 0 87 87 0 102 0 0 0 87 0 0 87 84 0 0 0 0 96 0 72 81 0 0 0 0 0 0 0 0 0 0 0 0 84 0 99 99 0 0 0 0 84 84 87 0 0 0 0 87 90 87 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="333">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.08333 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.16667 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.25 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.18 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0
</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 0.35354906 0.35298675 0.3521277 0.3511249 0.34983355 0.34833378 0.34655926 0.3445913 0.34229675 0.3398302 0.33706498 0.33401984 0.33071515 0.327109 0.32322994 0.31904808 0.31454307 0.3097052 0.30453598 0.29904887 0.29310012 0.2867813 0.2800439 0.2727352 0.26502842 0.25670934 0.24776544 0.23820302 0.22786881 0.21668318 0.20459439 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 0.204 0.2088 0.2136 0.2184 0.2232 0.228 0.2328 0.2376 0.2424 0.2472 0.252 0.2568 0.2616 0.2664 0.2712 0.276 0.2808 0.2856 0.2904 0.2952 0.3 0.3048 0.3096 0.3144 0.3192 0.324 0.3288 0.3336 0.3384 0.3432 0.348 0.3528 0.354 0.38758278 0.43102854 0.47598433 0.5242907 0.57732326 0.6362143 0.7017908 0.7743057 0.8532002 0.9370876 1.0240777 1.112379 1.2005376 1.287665 1.37332 1.4572986 1.5396374 1.6204338 1.6998361 1.7780364 1.8551737 1.9314626 2.0070424 2.0820737 2.1566973 2.231083 2.3053336 2.379598 2.4540129 2.5286992 2.6038096 2.679475 2.7558453 2.8330812 2.9113672 2.9908996 3.0719194 3.154671 3.239501 3.3267863 3.417045 3.5109236 3.6093414 3.7135894 3.8257606 3.9494727 4.0925374 4.2764983 4.3 4.2975197 4.2880306 4.271865 4.2494802 4.221332 4.187871 4.1495395 4.106767 4.0599704 4.0095506 3.955891 3.8993578 3.840298 3.7790394 3.7158914 3.651143 3.5850654 3.51791 3.4499114 3.3812854 3.3122318 3.2429338 3.1735592 3.1042614 3.0351799 2.9664404 2.8981574 2.8304327 2.7633584 2.6970155 2.6314766 2.566805 2.5030556 2.4402766 2.3785093 2.317788 2.258142 2.1995945 2.1421647 2.085867 2.0307114 1.9767047 1.9238504 1.8721489 1.8215978 1.7721927 1.7239267 1.676791 1.6307751 1.5858673 1.5420542 1.4993215 1.4576538 1.4170349 1.3774478 1.3388749 1.3012981 1.2646991 1.2290589 1.1943585 1.1605785 1.1276999 1.0957029 1.0645684 1.034277 1.0048094 0.97614634 0.948269 0.92115855 0.8947964 0.86916405 0.8442435 0.820017 0.79646677 0.77357566 0.7513266 0.72970307 0.7086886 0.68826723 0.66842324 0.6491412 0.6304061 0.6122032 0.5945181 0.5773368 0.56064546 0.54443073 0.52867943 0.5133789 0.49851656 0.4840803 0.47005826 0.45643887 0.44321084 0.43036327 0.4178854 0.40576681 0.39399746 0.38256738 0.371467 0.360687 0.3502182 0.34005183 0.33017924 0.32059208 0.31128216 0.3022416 0.29346266 0.28493786 0.27665994 0.26862174 0.26081648 0.2532374 0.24587801 0.238732 0.23179321 0.22505568 0.21851361 0.21216135 0.20599343 0.20000452 0.19418947 0.18854325 0.18306096 0.17773788 0.17256938 0.16755101 0.16267844 0.15794739 0.15335383 0.14889371 0.14456321 0.14035857 0.13627611 0.13231231 0.12846375 0.12472703 0.12109895 0.117576346 0.11415616 0.1108354 0.1076112 0.10448075 0.10144133 0.09849029 0.09562507 0.092843175 0.09014218 0.087519735 0.084973566 0.08250145 0.08010124 0.07777083 0.07550821 0.0733114 0.071178496 0.06910763 0.067097 0.06514486 0.063249506 0.06140929 0.059622608 0.0578879 0.056203656 0.054568406 0.052980732 0.051439248

</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="4.3" PeakHeight="254.18" Num="5" zHalfNm="242.615" Error="2.339">
-38.754 -16.84 11.812 -5.499 1.351
</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="6512.083" A="-1.47549225E11" B="4.5539884E7" C="-3513.7546" Error="0.00163"/>
<QuasiParabolic ID="2" StartDistance="6512.083" EndDistance="6544.167" A="0.0" B="34.830723" C="0.034677595" Error="6.56E-4"/>
<QuasiParabolic ID="3" StartDistance="6544.167" EndDistance="6545.0" A="-1.09446913E13" B="3.34440602E9" C="-255490.31" Error="7.28E-10"/>
<QuasiParabolic ID="4" StartDistance="6545.0" EndDistance="6570.0" A="1.13300062E11" B="-3.4659256E7" C="2650.6672" Error="0.0781"/>
<QuasiParabolic ID="5" StartDistance="6570.0" EndDistance="6572.0" A="-7.3185441E11" B="2.226176E8" C="-16929.002" Error="0.00293"/>
<QuasiParabolic ID="6" StartDistance="6572.0" EndDistance="6576.0" A="1.21977753E12" B="-3.71305696E8" C="28256.885" Error="0.0246"/>
<QuasiParabolic ID="7" StartDistance="6576.0" EndDistance="6585.0" A="1.30792146E13" B="-3.97819059E9" C="302503.0" Error="0.0677"/>
<QuasiParabolic ID="8" StartDistance="6585.0" EndDistance="6606.0" A="1.17223121E13" B="-3.5660713E9" C="271210.72" Error="0.0623"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6623.0" A="2.53894307E13" B="-7.7038607E9" C="584394.94" Error="0.0449"/>
<QuasiParabolic ID="10" StartDistance="6623.0" EndDistance="6624.0" A="1.34815614E15" B="-4.07150232E11" C="3.0740396E7" Error="2.22E-10"/>
<QuasiParabolic ID="11" StartDistance="6624.0" EndDistance="6624.18" A="-1.19779573E16" B="3.61643481E12" C="-2.72972256E8" Error="0.0"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="96.25" Depth="0.154"/>
<TopsideChapman PeakHeight="254.18" PeakDensity="229404.47" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
