<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-19 -078 05:15:00.000"
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: 0% 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, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.19 (078) 05:15:00</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">
FF202607803190515001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="5.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.650" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="19.894" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="230.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="230.000" 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="4.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="255.833" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="247.489" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="228.130" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.864" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.888" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.293" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.738" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.350" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="85">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 5.4 5.425 5.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
230.000 237.500 241.250 245.000 285.000 288.750 292.500 261.250 230.000 230.000 230.000 232.500 235.000 235.000 235.000 237.500 237.500 237.500 238.750 240.000 241.250 242.500 242.813 243.125 243.438 243.750 244.063 244.375 244.688 245.000 244.000 243.000 242.000 241.000 240.000 240.000 240.000 240.000 237.500 237.500 237.500 237.500 237.500 238.125 238.750 239.375 240.000 238.750 237.500 238.125 238.750 239.375 240.000 240.000 240.000 240.000 240.000 245.000 246.250 247.500 247.500 249.167 250.833 252.500 254.167 255.833 257.500 260.250 263.000 265.750 268.500 271.250 274.000 276.750 279.500 282.250 285.000 289.350 294.119 299.368 305.174 311.632 318.856 326.994 336.229
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 96 0 0 90 0 75 0 84 63 66 81 81 84 84 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 102 0 102 105 102 90 90 102 105 93 93 78 75 0 54 84 78 0 105 81 81 105 105 93 93 93 93 87 93 105 0 66 0 0 0 0 0 0 0 0 0 0 0 60 0 0 96 0 99 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 -10.9375 1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 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="401">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 247.489 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0
</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 0.35339895 0.35261247 0.3516065 0.35023698 0.34851307 0.34651887 0.34419376 0.34155348 0.33854687 0.33526585 0.33153415 0.32752004 0.32306805 0.31823066 0.3130061 0.3072951 0.30113927 0.29447237 0.28732234 0.2796049 0.2711702 0.2621697 0.25230387 0.24165411 0.23006094 0.21740833 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 0.2055 0.211 0.2165 0.222 0.2275 0.233 0.2385 0.244 0.2495 0.255 0.2605 0.266 0.2715 0.277 0.2825 0.288 0.2935 0.299 0.3045 0.31 0.3155 0.321 0.3265 0.332 0.3375 0.343 0.3485 0.354 0.39120758 0.43183902 0.4756951 0.5226214 0.5724884 0.625265 0.6809582 0.739638 0.8014051 0.8664142 0.93485045 1.0069153 1.082847 1.1628952 1.2473474 1.3364844 1.4306039 1.530037 1.6350403 1.7459335 1.862929 1.9862181 2.1159196 2.2520077 2.3943255 2.542526 2.6960716 2.854178 3.0159018 3.1800296 3.3452137 3.5100996 3.6732578 3.8332665 3.9889305 4.1390815 4.282823 4.4194417 4.5483084 4.6690273 4.781283 4.8848925 4.979744 5.065793 5.143038 5.2114973 5.271225 5.322258 5.3646646 5.398504 5.423812 5.4406333 5.4489903 5.45 5.4493647 5.444526 5.435105 5.4213157 5.4033723 5.3814898 5.3558817 5.3267593 5.294332 5.2588043 5.220378 5.1792483 5.1356077 5.089641 5.0415287 4.9914446 4.9395566 4.886026 4.831007 4.7746487 4.717093 4.6584754 4.5989246 4.5385637 4.477509 4.415871 4.353754 4.291257 4.2284727 4.1654882 4.102387 4.039245 3.9761353 3.9131248 3.8502767 3.7876499 3.7252982 3.6632726 3.6016197 3.5403824 3.4796004 3.41931 3.359545 3.300335 3.2417078 3.1836886 3.1262999 3.0695612 3.0134912 2.958105 2.903417 2.8494394 2.7961822 2.743654 2.6918626 2.640813 2.5905108 2.5409584 2.4921584 2.4441118 2.3968186 2.3502781 2.3044887 2.259448 2.2151527 2.1715994 2.1287832 2.0866995 2.0453427 2.0047069 1.9647856 1.9255723 1.8870598 1.8492409 1.8121077 1.7756523 1.7398667 1.7047426 1.6702714 1.6364446 1.6032532 1.5706887 1.538742 1.5074041 1.4766659 1.4465183 1.4169524 1.3879589 1.3595288 1.3316529 1.3043224 1.2775279 1.2512606 1.2255118 1.2002722 1.1755333 1.1512862 1.1275223 1.1042331 1.08141 1.0590447 1.0371287 1.015654 0.9946122 0.9739956 0.95379615 0.934006 0.9146175 0.895623 0.8770151 0.8587864 0.8409296 0.8234375 0.8063032 0.7895196 0.77308 0.75697756 0.7412058 0.7257582 0.71062833 0.6958099 0.6812968 0.66708297 0.65316236 0.6395292 0.6261778 0.61310244 0.6002975 0.5877577 0.5754776 0.563452 0.5516757 0.5401437 0.52885103 0.5177929 0.5069644 0.49636096 0.48597795 0.4758109 0.46585533 0.456107 0.4465616 0.437215 0.42806312 0.41910192 0.41032755 0.4017361 0.39332384 0.38508707 0.37702218 0.36912557 0.36139384 0.3538235 0.34641132 0.33915392 0.33204815 0.32509083 0.31827894 0.31160942 0.30507934 0.2986858 0.29242593 0.286297 0.28029627 0.27442107 0.2686688 0.26303688 0.25752282 0.2521242 0.24683852 0.24166353 0.23659687 0.23163629 0.22677958 0.22202457 0.21736915 0.21281123 0.20834878 0.2039798 0.19970235 0.1955145 0.1914144 0.1874002 0.18347012 0.17962238 0.17585528 0.17216712 0.16855626 0.16502108 0.16155998 0.15817145 0.15485393 0.15160595 0.14842607 0.14531283 0.14226487 0.13928083 0.13635932 0.13349907 0.1306988 0.12795724 0.12527317 0.12264537 0.12007268 0.117553934 0.115088 0.11267379 0.1103102 0.10799617 0.10573068 0.1035127 0.10134123 0.09921531 0.09713397 0.09509628 0.09310134 0.09114823 0.08923609 0.08736405 0.08553128 0.08373695 0.08198026 0.08026041 0.07857664 0.07692818 0.07531431 0.07373429 0.07218741 0.070672974 0.069190316 0.06773875 0.06631764 0.064926334 0.06356422 0.062230676 0.06092511 0.05964693 0.05839556 0.057170443 0.05597103 0.054796774 0.053647153 0.05252165 0.051419757 0.05034098

</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="5.45" PeakHeight="247.489" Num="5" zHalfNm="228.13" Error="1.942">
-53.997 1.635 -2.112 1.319 -0.334
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6508.0" A="-1.93482834E11" B="5.9716924E7" C="-4607.662" Error="0.00161"/>
<QuasiParabolic ID="2" StartDistance="6508.0" EndDistance="6536.0" A="0.0" B="-2237.2043" C="0.3837852" Error="0.0374"/>
<QuasiParabolic ID="3" StartDistance="6536.0" EndDistance="6558.0" A="9.8368463E10" B="-3.0169756E7" C="2313.3066" Error="0.0374"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6562.0" A="-2.57131446E11" B="7.8247416E7" C="-5952.7173" Error="0.00295"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6566.0" A="6.9351894E12" B="-2.11386509E9" C="161078.1" Error="0.037"/>
<QuasiParabolic ID="6" StartDistance="6566.0" EndDistance="6572.0" A="8.3757236E12" B="-2.55265101E9" C="194491.6" Error="0.00744"/>
<QuasiParabolic ID="7" StartDistance="6572.0" EndDistance="6580.0" A="1.53987716E13" B="-4.6899144E9" C="357095.3" Error="0.01"/>
<QuasiParabolic ID="8" StartDistance="6580.0" EndDistance="6600.0" A="5.1709842E13" B="-1.57267139E10" C="1195757.9" Error="0.0386"/>
<QuasiParabolic ID="9" StartDistance="6600.0" EndDistance="6609.0" A="-5.6734123E13" B="1.71350938E10" C="-1293773.0" Error="0.00318"/>
<QuasiParabolic ID="10" StartDistance="6609.0" EndDistance="6617.489" A="-8.668936E13" B="2.62000783E10" C="-1979579.0" Error="5.47E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
<TopsideChapman PeakHeight="247.489" PeakDensity="368517.38" PeakScaleHeight="14.738" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
