<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-29 -088 00:45:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 65% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.29 (088) 00:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" 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">
FF202608803290045001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="8.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.611" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.793" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="7.500" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="7.500" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="8.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="291.667" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="7.500" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="7.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="268.348" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.763" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.857" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.245" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.479" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.443" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.160" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.980" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 8.2 8.225 8.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 285.833 286.667 287.500 287.500 287.500 287.500 287.500 287.500 288.750 290.000 291.500 293.000 294.500 296.000 297.500 298.750 300.000 298.333 296.667 295.000 293.333 291.667 294.114 296.784 299.709 302.927 306.484 310.437 314.855 319.827
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 99 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
</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
</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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.70833 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.41667 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.125 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 268.348 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0
</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 0.3103867 0.30577826 0.3008974 0.29572442 0.29025578 0.28439444 0.27817202 0.2715686 0.26454455 0.25707528 0.24913268 0.24064001 0.23155157 0.22184576 0.21139222 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 0.20251575 0.20682847 0.21114118 0.21545391 0.21976663 0.22407934 0.22839206 0.23270479 0.2370175 0.24133022 0.24564295 0.24995565 0.25426838 0.2585811 0.26289383 0.26720652 0.27151924 0.27583197 0.2801447 0.28445742 0.28877014 0.29308283 0.29739556 0.30170828 0.306021 0.31033373 0.31464645 0.31895915 0.32327187 0.3275846 0.33189732 0.33621004 0.34052277 0.34483546 0.34914818 0.3534609 0.354 0.3987144 0.45259497 0.51025516 0.5724048 0.63967866 0.7126483 0.7918764 0.87786794 0.9710939 1.0720124 1.1809511 1.2982274 1.4240332 1.5584985 1.7016486 1.8534769 2.0138147 2.1824796 2.3591976 2.5436447 2.735421 2.9341311 3.1393085 3.3504863 3.5670679 3.7885811 4.0143204 4.243762 4.4761486 4.7108054 4.94691 5.1836443 5.4201617 5.6554923 5.888553 6.1182623 6.343452 6.562861 6.7751946 6.9789886 7.172852 7.3552256 7.5246615 7.6796107 7.818622 7.940276 8.043284 8.126468 8.188882 8.229781 8.24865 8.25 8.247812 8.236196 8.215049 8.184913 8.146327 8.099829 8.045949 7.9852114 7.9181266 7.845193 7.766894 7.6836963 7.5960503 7.504387 7.409119 7.310641 7.2093263 7.10553 6.9995885 6.891818 6.782517 6.6719656 6.5604258 6.448142 6.335343 6.222241 6.1090326 5.9959 5.8830113 5.7705216 5.6585727 5.5472937 5.4368043 5.3272114 5.218613 5.1110973 5.0047426 4.89962 4.795793 4.693316 4.5922375 4.492601 4.394441 4.29779 4.2026725 4.1091094 4.017118 3.92671 3.8378944 3.7506769 3.6650593 3.5810416 3.49862 3.4177892 3.3385413 3.2608666 3.1847534 3.110189 3.0371585 2.9656463 2.8956354 2.8271074 2.760044 2.6944253 2.6302311 2.5674403 2.5060315 2.445983 2.3872726 2.329878 2.2737765 2.2189455 2.165362 2.1130028 2.0618455 2.011867 1.9630446 1.9153556 1.8687773 1.8232875 1.7788639 1.7354846 1.6931278 1.6517719 1.6113957 1.5719783 1.5334989 1.4959371 1.4592729 1.4234862 1.3885578 1.3544685 1.3211993 1.2887319 1.2570479 1.2261297 1.1959594 1.1665201 1.1377949 1.109767 1.0824205 1.0557393 1.0297079 1.0043112 0.979534 0.9553618 0.9317803 0.9087754 0.88633347 0.86444116 0.84308517 0.82225287 0.80193156 0.7821091 0.76277333 0.7439127 0.72551566 0.707571 0.6900679 0.6729955 0.65634346 0.64010155 0.6242598 0.6088086 0.59373826 0.5790395 0.56470346 0.5507211 0.5370838 0.5237832 0.51081103 0.49815926 0.48582003 0.47378564 0.46204865 0.4506018 0.4394379 0.42855 0.41793138 0.40757537 0.39747554 0.38762555 0.37801927 0.3686507 0.35951397 0.3506034 0.34191337 0.3334385 0.3251734 0.31711298 0.3092521 0.30158594 0.2941096 0.28681847 0.2797079 0.27277347 0.26601082 0.25941572 0.25298402 0.24671164 0.2405947 0.23462932 0.22881177 0.22313838 0.21760558 0.21220991 0.20694795 0.20181642 0.19681208 0.19193178 0.18717244 0.18253107 0.17800477 0.17359066 0.16928598 0.16508801 0.16099413 0.15700172 0.1531083 0.14931141 0.14560865 0.1419977 0.13847627 0.13504215 0.13169318 0.12842725 0.12524231 0.122136325 0.119107366 0.11615351 0.1132729 0.110463716 0.10772419 0.105052605 0.102447264 0.09990653 0.09742879 0.09501251 0.092656136 0.090358205 0.08811726 0.08593188 0.083800696 0.08172237 0.07969558 0.077719055 0.075791545 0.07391183 0.07207874 0.07029111 0.06854781 0.06684774 0.06518984 0.06357305 0.06199636 0.060458772 0.058959313 0.057497043 0.05607104 0.054680403 0.053324252 0.052001737 0.05071202

</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="8.25" PeakHeight="268.348" Num="5" zHalfNm="251.763" Error="0.403">
-50.717 -1.121 0.794 -0.356 0.177
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6515.708" A="-1.19228244E11" B="3.679884E7" C="-2839.2915" Error="0.0017"/>
<QuasiParabolic ID="2" StartDistance="6515.708" EndDistance="6551.417" A="0.0" B="-1819.2726" C="0.31925136" Error="0.039"/>
<QuasiParabolic ID="3" StartDistance="6551.417" EndDistance="6585.0" A="5.5716766E10" B="-1.7065068E7" C="1306.7102" Error="0.039"/>
<QuasiParabolic ID="4" StartDistance="6585.0" EndDistance="6586.0" A="-2.80476018E12" B="8.5172064E8" C="-64660.316" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6586.0" EndDistance="6588.0" A="1.68015797E13" B="-5.1022239E9" C="387354.94" Error="0.0401"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6597.0" A="1.5496155E13" B="-4.70592E9" C="357277.22" Error="0.0677"/>
<QuasiParabolic ID="7" StartDistance="6597.0" EndDistance="6609.0" A="7.2625506E13" B="-2.20257157E10" C="1669979.8" Error="0.062"/>
<QuasiParabolic ID="8" StartDistance="6609.0" EndDistance="6628.0" A="1.12971221E14" B="-3.42350418E10" C="2593669.0" Error="0.0467"/>
<QuasiParabolic ID="9" StartDistance="6628.0" EndDistance="6638.348" A="-3.10305012E14" B="9.3488628E10" C="-7041490.0" Error="0.0107"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.125" Depth="0.154"/>
<TopsideChapman PeakHeight="268.348" PeakDensity="844447.9" PeakScaleHeight="12.443" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
