<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 22:40:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.06 (126) 22:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612605062240001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.575" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.667" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.110" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" Name="fxI" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.827" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="244.231" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.089" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.690" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.843" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.036" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.356" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.720" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.430" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="26">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
230.000 232.500 235.000 235.000 235.000 242.500 240.000 242.500 245.000 247.500 250.000 255.000 255.000 257.500 260.000 262.732 265.827 269.362 273.439 278.192 283.805 290.535 298.751 309.008 322.172 339.684
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 66 63 78 78 96 102 81 81 108 105 102 105 105 105 105 102 102 102 102 99 81 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 -4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="387">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 244.231 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0
</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 0.38913506 0.426354 0.4655403 0.5066409 0.5496621 0.5946537 0.64169914 0.69091123 0.74243325 0.79640615 0.8529968 0.91238075 0.9747453 1.0402714 1.1091453 1.1815376 1.2576115 1.3374556 1.4211724 1.5087571 1.6001263 1.6950791 1.7932832 1.8943095 1.9975319 2.1022615 2.207645 2.3128004 2.416841 2.5189152 2.618181 2.713971 2.8057022 2.8929195 2.9752448 3.0524654 3.124392 3.1909354 3.252059 3.3077419 3.3580241 3.4029317 3.4425144 3.4768407 3.5059488 3.5299 3.548731 3.5624876 3.571193 3.5748658 3.575 3.5741336 3.570479 3.5640795 3.5550597 3.5435436 3.5296562 3.5135207 3.4952602 3.4749959 3.4528465 3.428929 3.4033582 3.3762453 3.3476987 3.3178236 3.2867224 3.2544935 3.2212317 3.187029 3.1519723 3.1161468 3.0796328 3.0425072 3.0048437 2.9667122 2.9281795 2.8893085 2.8501592 2.8107882 2.771249 2.7315924 2.691866 2.652114 2.6123788 2.5727 2.533114 2.4936552 2.4543557 2.4152455 2.3763523 2.3377016 2.299317 2.2612205 2.223432 2.1859703 2.1488516 2.112092 2.0757046 2.0397024 2.0040965 1.9688971 1.934113 1.899752 1.865821 1.8323258 1.7992716 1.7666625 1.7345017 1.702792 1.6715355 1.6407334 1.6103863 1.5804946 1.5510579 1.5220753 1.4935458 1.4654673 1.4378382 1.4106559 1.3839177 1.3576205 1.3317611 1.306336 1.2813413 1.2567732 1.2326275 1.2088999 1.1855857 1.1626806 1.1401798 1.1180782 1.0963713 1.0750538 1.0541208 1.033567 1.0133873 0.9935766 0.97412956 0.9550409 0.93630534 0.91791767 0.8998726 0.8821648 0.86478907 0.84774005 0.83101267 0.81460166 0.79850185 0.78270805 0.7672153 0.75201845 0.7371125 0.7224925 0.70815355 0.6940907 0.6802993 0.6667744 0.65351135 0.64050555 0.62775236 0.61524725 0.60298574 0.5909634 0.5791759 0.56761897 0.5562883 0.5451797 0.5342892 0.5236126 0.513146 0.50288546 0.49282703 0.482967 0.47330156 0.4638271 0.45453992 0.4454365 0.4365133 0.42776695 0.41919398 0.4107911 0.40255502 0.39448252 0.38657048 0.3788158 0.37121537 0.36376625 0.35646546 0.34931016 0.34229746 0.33542463 0.32868892 0.32208762 0.3156181 0.3092778 0.3030642 0.29697478 0.29100707 0.28515872 0.27942735 0.27381068 0.26830643 0.26291236 0.25762632 0.25244617 0.24736978 0.24239512 0.23752017 0.23274295 0.22806153 0.22347398 0.21897845 0.21457312 0.21025617 0.20602587 0.20188047 0.19781828 0.19383766 0.18993695 0.1861146 0.18236901 0.17869866 0.17510204 0.17157769 0.16812415 0.16474003 0.1614239 0.15817444 0.15499029 0.15187016 0.14881276 0.14581682 0.14288114 0.14000449 0.13718568 0.13442357 0.13171701 0.1290649 0.12646614 0.12391966 0.121424414 0.118979365 0.11658351 0.11423586 0.11193546 0.10968134 0.10747259 0.10530829 0.10318754 0.10110948 0.09907324 0.09707799 0.0951229 0.093207166 0.09132999 0.08949061 0.08768825 0.085922174 0.08419166 0.08249598 0.08083444 0.079206355 0.077611044 0.07604786 0.07451615 0.07301528 0.071544625 0.070103586 0.06869157 0.06730798 0.06595226 0.064623825 0.06332216 0.06204669 0.060796916 0.05957231 0.058372363 0.05719658 0.056044478 0.05491558 0.053809416 0.05272553 0.051663473 0.050622806

</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="3.575" PeakHeight="244.231" Num="5" zHalfNm="224.089" Error="1.817">
-51.429 2.425 -2.146 1.145 -0.226
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="13" 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="-93.4375" C="0.054380335" Error="0.00211"/>
<QuasiParabolic ID="3" StartDistance="6536.0" EndDistance="6538.0" A="4.31410807E11" B="-1.3207612E8" C="10108.792" Error="0.00892"/>
<QuasiParabolic ID="4" StartDistance="6538.0" EndDistance="6561.0" A="4.5434221E10" B="-1.4004367E7" C="1079.1377" Error="0.00959"/>
<QuasiParabolic ID="5" StartDistance="6561.0" EndDistance="6563.0" A="1.80925317E11" B="-5.5306332E7" C="4226.6733" Error="3.76E-4"/>
<QuasiParabolic ID="6" StartDistance="6563.0" EndDistance="6566.0" A="9.9779797E12" B="-3.04084787E9" C="231679.19" Error="0.0032"/>
<QuasiParabolic ID="7" StartDistance="6566.0" EndDistance="6567.0" A="-1.24735639E12" B="3.78383392E8" C="-28694.818" Error="2.0E-11"/>
<QuasiParabolic ID="8" StartDistance="6567.0" EndDistance="6574.0" A="6.6271136E12" B="-2.01981056E9" C="153899.52" Error="0.00628"/>
<QuasiParabolic ID="9" StartDistance="6574.0" EndDistance="6579.0" A="1.25817743E13" B="-3.8313897E9" C="291683.12" Error="0.00163"/>
<QuasiParabolic ID="10" StartDistance="6579.0" EndDistance="6595.0" A="2.34574441E13" B="-7.1375667E9" C="542950.56" Error="0.0093"/>
<QuasiParabolic ID="11" StartDistance="6595.0" EndDistance="6604.0" A="-1.95323746E13" B="5.8995277E9" C="-445456.88" Error="0.00292"/>
<QuasiParabolic ID="12" StartDistance="6604.0" EndDistance="6614.231" A="-3.37046908E13" B="1.01915679E10" C="-770414.5" Error="8.77E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
<TopsideChapman PeakHeight="244.231" PeakDensity="158568.55" PeakScaleHeight="15.356" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
