<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 04:45:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.14 (104) 04:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610404140445001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.175" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.753" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.668" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.750" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="4.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.556" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="238.859" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="219.523" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.387" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.667" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.350" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.840" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.500" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.860" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="58">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 227.500 227.500 228.000 228.500 229.000 229.500 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 232.500 233.333 234.167 235.000 235.000 237.500 237.500 240.000 240.000 241.250 242.500 240.000 242.500 242.500 242.500 242.500 245.000 245.000 245.000 245.000 250.000 250.000 250.000 250.000 252.500 252.500 255.000 255.000 257.500 260.000 262.500 262.500 265.281 268.556 272.471 277.232 283.148 290.696 300.661 314.424
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 72 72 48 48 0 0 0 0 72 72 96 96 93 90 81 81 93 90 0 0 87 90 96 96 93 90 0 84 84 84 0 93 93 93 90 87 72 75 75 72 72 72 102 102 90 90 87 84 84 84 57 0 0 84 87 81 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="384">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 238.859 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0
</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 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.3790415 0.41771874 0.4625592 0.51315945 0.5687413 0.6285283 0.69192386 0.75859743 0.8284779 0.9016652 0.97837156 1.0589262 1.1436678 1.2330545 1.3275042 1.427481 1.5334436 1.6457589 1.7646644 1.8902272 2.0221832 2.1598878 2.3021595 2.4474177 2.5936413 2.738612 2.8801775 3.0164642 3.1460428 3.2678797 3.3814082 3.4863832 3.5827997 3.670822 3.7507076 3.8227654 3.8872936 3.9446366 3.9950566 4.0388455 4.076216 4.1073875 4.1325197 4.1517553 4.1651936 4.172909 4.175 4.1749635 4.1726284 4.166771 4.157551 4.1451283 4.1296654 4.111322 4.0902576 4.0666304 4.040595 4.0123043 3.9819062 3.9495466 3.915367 3.8795037 3.8420901 3.803254 3.7631183 3.7218022 3.6794193 3.6360784 3.5918837 3.5469344 3.501325 3.4551454 3.408481 3.3614125 3.314016 3.2663643 3.2185247 3.1705616 3.1225348 3.0745006 3.026512 2.978618 2.9308646 2.8832946 2.8359475 2.7888603 2.7420669 2.6955988 2.6494846 2.603751 2.558422 2.5135198 2.4690645 2.4250739 2.3815646 2.338551 2.296046 2.2540612 2.2126067 2.171691 2.1313217 2.0915048 2.0522456 2.0135481 1.9754157 1.9378505 1.900854 1.8644267 1.8285687 1.7932793 1.758557 1.7243998 1.6908056 1.6577711 1.6252931 1.5933678 1.5619911 1.5311583 1.5008649 1.4711055 1.4418749 1.4131675 1.3849776 1.3572992 1.3301262 1.3034521 1.277271 1.2515761 1.2263608 1.2016187 1.1773428 1.1535265 1.1301631 1.1072456 1.0847672 1.0627213 1.0411007 1.0198989 0.9991089 0.97872406 0.95873755 0.9391427 0.91993284 0.9011014 0.8826418 0.8645475 0.8468121 0.82942927 0.8123926 0.7956959 0.779333 0.7632978 0.7475843 0.7321865 0.71709853 0.7023147 0.6878292 0.6736365 0.6597309 0.64610714 0.63275963 0.61968327 0.6068727 0.5943228 0.58202857 0.56998503 0.55818725 0.5466305 0.53531 0.52422106 0.5133592 0.50271994 0.49229878 0.4820915 0.47209376 0.4623014 0.4527104 0.4433166 0.43411615 0.42510515 0.41627976 0.40763626 0.399171 0.39088035 0.38276082 0.3748089 0.3670212 0.35939443 0.35192528 0.34461057 0.33744714 0.3304319 0.32356185 0.316834 0.31024545 0.3037934 0.29747498 0.2912875 0.28522828 0.27929464 0.27348408 0.26779398 0.26222196 0.25676554 0.25142235 0.24619003 0.24106634 0.23604903 0.2311359 0.22632481 0.22161366 0.21700037 0.21248291 0.20805933 0.20372768 0.19948605 0.19533259 0.19126548 0.1872829 0.18338315 0.17956448 0.17582522 0.17216374 0.1685784 0.16506764 0.16162992 0.15826371 0.15496753 0.15173994 0.14857951 0.14548483 0.14245456 0.13948737 0.13658191 0.13373694 0.13095118 0.1282234 0.12555242 0.12293702 0.12037608 0.11786845 0.11541303 0.11300874 0.1106545 0.108349286 0.106092066 0.10388185 0.101717666 0.09959854 0.09752355 0.09549177 0.093502305 0.09155427 0.08964681 0.087779075 0.08595025 0.0841595 0.08240606 0.08068914 0.07900798 0.07736184 0.075749986 0.074171714 0.072626315 0.0711131 0.06963142 0.0681806 0.06676 0.065368995 0.06400697 0.06267332 0.061367452 0.060088787 0.058836766 0.057610825 0.056410424 0.055235032 0.054084126 0.052957203 0.051853754 0.050773297

</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="4.175" PeakHeight="238.859" Num="5" zHalfNm="219.523" Error="0.865">
-49.51 5.141 -3.358 1.704 -0.586
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="688.91205" C="-0.06585217" Error="0.0108"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6561.0" A="4.5080605E10" B="-1.3900598E7" C="1071.542" Error="0.0108"/>
<QuasiParabolic ID="4" StartDistance="6561.0" EndDistance="6563.0" A="8.4340491E12" B="-2.57112294E9" C="195952.08" Error="0.028"/>
<QuasiParabolic ID="5" StartDistance="6563.0" EndDistance="6573.0" A="1.06614017E13" B="-3.2498839E9" C="247663.25" Error="0.0102"/>
<QuasiParabolic ID="6" StartDistance="6573.0" EndDistance="6591.0" A="3.7444678E13" B="-1.13993677E10" C="867584.4" Error="0.0615"/>
<QuasiParabolic ID="7" StartDistance="6591.0" EndDistance="6608.859" A="-4.5123035E13" B="1.36553175E10" C="-1033089.6" Error="0.00525"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="238.859" PeakDensity="216260.86" PeakScaleHeight="14.84" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
