<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-31 -090 06:40:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.31 (090) 06:40:00</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">
FF202609003310640001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.718" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.361" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.675" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="225.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="238.439" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.906" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.308" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.977" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.512" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.970" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.140" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.740" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
225.000 225.000 226.250 227.500 227.500 227.500 227.857 228.214 228.571 228.929 229.286 229.643 230.000 232.500 232.500 232.500 233.125 233.750 234.375 235.000 236.071 237.143 238.214 239.286 240.357 241.429 242.500 243.571 244.643 245.714 246.786 247.857 248.929 250.000 250.000 250.000 252.500 253.750 255.000 256.875 258.750 260.625 262.500 265.000 267.500 270.000 275.000 277.500 282.500 287.500 292.500 300.561 310.868
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 96 0 93 93 96 0 0 0 0 0 0 93 105 102 90 0 0 0 78 0 0 0 0 0 0 0 0 0 0 0 0 0 57 63 87 87 0 87 0 0 0 96 102 105 93 90 105 105 93 90 78 78
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="388">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.83333 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 163.66667 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 190.5 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 238.439 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0
</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 0.35332385 0.35253775 0.3513833 0.34986797 0.34800196 0.34587008 0.3433416 0.34043694 0.33717975 0.3335292 0.3294542 0.3250611 0.3201454 0.31483623 0.30908883 0.30277678 0.29597685 0.28861925 0.2806141 0.2719544 0.2625736 0.25233817 0.24117032 0.22898808 0.2156547 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 0.20191304 0.20765217 0.2133913 0.21913044 0.22486956 0.2306087 0.23634782 0.24208696 0.24782608 0.25356522 0.25930434 0.26504347 0.27078262 0.27652174 0.28226086 0.288 0.29373914 0.29947826 0.3052174 0.3109565 0.31669566 0.32243478 0.3281739 0.33391306 0.33965218 0.3453913 0.35113043 0.354 0.37065357 0.4084041 0.4522114 0.5017726 0.5563773 0.61524624 0.67776144 0.7435606 0.81252056 0.88466865 0.9601799 1.0393049 1.1223787 1.2097505 1.3018397 1.3990355 1.5017678 1.6104249 1.7253518 1.846706 1.9745343 2.1085649 2.248213 2.3924842 2.539948 2.6888406 2.8371468 2.9829488 3.1243598 3.2598732 3.3883672 3.509079 3.621586 3.7256818 3.8213928 3.9088688 3.988306 4.059958 4.1240997 4.1809926 4.230879 4.273985 4.3105035 4.3406234 4.3644733 4.3821716 4.393804 4.3994236 4.4 4.399401 4.39543 4.3878775 4.3769083 4.362688 4.3453817 4.325154 4.302168 4.2765846 4.2485623 4.218256 4.1858177 4.1513953 4.115132 4.0771675 4.0376363 3.9966688 3.9543903 3.910921 3.8663766 3.8208673 3.7744992 3.7273726 3.6795838 3.631224 3.5823796 3.5331328 3.4835608 3.4337375 3.3837314 3.3336074 3.2834272 3.2332475 3.183122 3.1331007 3.0832307 3.0335555 2.9841151 2.9349473 2.8860865 2.837565 2.789412 2.7416549 2.6943178 2.6474237 2.6009932 2.5550444 2.5095942 2.4646575 2.4202478 2.3763764 2.333054 2.2902896 2.2480907 2.2064636 2.165414 2.1249459 2.0850627 2.0457668 2.0070598 1.9689425 1.9314146 1.8944757 1.8581244 1.8223587 1.7871764 1.7525743 1.7185491 1.685097 1.6522138 1.619895 1.5881355 1.5569303 1.526274 1.4961607 1.4665848 1.43754 1.4090203 1.3810191 1.35353 1.3265464 1.3000615 1.2740684 1.2485604 1.2235305 1.1989717 1.1748772 1.1512399 1.1280526 1.1053085 1.0830005 1.0611217 1.039665 1.0186236 0.99799055 0.977759 0.9579221 0.93847317 0.91940546 0.9007124 0.8823873 0.8644237 0.84681517 0.82955533 0.8126379 0.7960567 0.77980554 0.76387835 0.7482691 0.73297197 0.7179811 0.7032908 0.68889534 0.6747892 0.6609669 0.64742297 0.6341521 0.6211491 0.60840887 0.5959262 0.58369625 0.571714 0.5599747 0.54847354 0.53720593 0.5261673 0.515353 0.50475883 0.49438035 0.4842133 0.47425348 0.46449676 0.45493916 0.44557667 0.43640542 0.42742157 0.41862142 0.41000125 0.40155745 0.39328653 0.38518494 0.37724933 0.36947632 0.36186266 0.3544051 0.34710056 0.33994585 0.332938 0.32607397 0.31935093 0.312766 0.3063163 0.29999915 0.29381186 0.28775173 0.28181624 0.27600282 0.27030897 0.26473224 0.2592703 0.25392073 0.2486813 0.24354973 0.23852381 0.23360139 0.22878034 0.2240586 0.21943411 0.21490492 0.21046904 0.20612457 0.20186964 0.19770241 0.19362107 0.18962388 0.18570909 0.18187502 0.17812 0.17444243 0.1708407 0.16731325 0.16385855 0.16047512 0.15716149 0.15391621 0.15073788 0.14762513 0.14457662 0.141591 0.138667 0.13580333 0.13299876 0.13025208 0.12756208 0.1249276 0.1223475 0.119820654 0.117345974 0.11492237 0.1125488 0.11022423 0.10794765 0.10571807 0.10353452 0.101396054 0.09930174 0.09725066 0.09524194 0.0932747 0.09134807 0.08946123 0.087613344 0.08580362 0.08403127 0.08229552 0.08059561 0.07893081 0.07730039 0.07570364 0.07413986 0.07260839 0.071108535 0.06963966 0.068201125 0.0667923 0.06541257 0.064061336 0.062738016 0.06144202 0.060172796 0.058929786 0.05771245 0.05652026 0.055352695 0.054209244 0.05308941 0.05199271 0.05091866

</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="4.4" PeakHeight="238.439" Num="5" zHalfNm="218.906" Error="1.144">
-50.686 4.809 -3.156 1.671 -0.577
</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="6506.833" A="-2.10612257E11" B="6.5003784E7" C="-5015.5986" Error="0.00148"/>
<QuasiParabolic ID="2" StartDistance="6506.833" EndDistance="6533.667" A="0.0" B="637.4659" C="-0.057949487" Error="0.00958"/>
<QuasiParabolic ID="3" StartDistance="6533.667" EndDistance="6535.0" A="-3.40352041E12" B="1.04157587E9" C="-79688.055" Error="0.0173"/>
<QuasiParabolic ID="4" StartDistance="6535.0" EndDistance="6545.0" A="2.26189754E11" B="-6.9276512E7" C="5304.476" Error="0.0379"/>
<QuasiParabolic ID="5" StartDistance="6545.0" EndDistance="6558.0" A="-1.88726456E10" B="5608867.0" C="-416.332" Error="0.0151"/>
<QuasiParabolic ID="6" StartDistance="6558.0" EndDistance="6559.0" A="-2.40252538E12" B="7.3255386E8" C="-55840.625" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6559.0" EndDistance="6568.0" A="9.7714595E12" B="-2.9795927E9" C="227140.5" Error="0.0206"/>
<QuasiParabolic ID="8" StartDistance="6568.0" EndDistance="6576.0" A="1.91044403E13" B="-5.8215475E9" C="443489.1" Error="0.0197"/>
<QuasiParabolic ID="9" StartDistance="6576.0" EndDistance="6590.0" A="4.7289725E13" B="-1.43937147E10" C="1095265.8" Error="0.0233"/>
<QuasiParabolic ID="10" StartDistance="6590.0" EndDistance="6608.439" A="-4.9302651E13" B="1.49211187E10" C="-1128924.9" Error="0.0099"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="80.5" Depth="0.154"/>
<TopsideChapman PeakHeight="238.439" PeakDensity="240198.52" PeakScaleHeight="14.97" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
