<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 07:55:00.000"
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: Multiple candidates for F2x cusp, F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.07 (097) 07:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609704070755001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.743" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.696" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.525" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="256.171" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.664" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.760" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.714" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.253" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.868" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.039" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.360" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.420" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 225.000 227.500 227.500 230.000 230.000 232.500 232.500 235.000 235.000 237.500 240.000 241.506 243.198 245.112 247.295 249.807 252.729 256.171 260.285 265.289 271.506 279.440 289.914 304.380 325.661 360.052
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 72 63 66 66 69 63 66 63 66 66 69 69 0 45 48 45 42 60 0 0 63 78 78 87 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 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="402">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.664 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0
</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 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36165833 0.39471063 0.43118477 0.47034693 0.51156765 0.55441636 0.5987052 0.6443944 0.6915852 0.7404217 0.7911435 0.8440092 0.8993494 0.95749867 1.0188664 1.0839119 1.1531305 1.2270576 1.3062496 1.3912537 1.4824966 1.5801154 1.6838133 1.7926017 1.9046853 2.0175443 2.1283643 2.234634 2.3344903 2.426923 2.5115838 2.5885978 2.6583652 2.7213798 2.7781882 2.829303 2.8751807 2.9162505 2.9528685 2.9853532 3.013966 3.0389392 3.0604649 3.078706 3.0937917 3.10583 3.1149013 3.1210694 3.1243749 3.125 3.1248817 3.1231546 3.1194293 3.113785 3.106301 3.0970573 3.0861332 3.0736084 3.0595608 3.0440688 3.0272086 3.0090559 2.9896843 2.9691668 2.947574 2.9249744 2.901436 2.8770237 2.8518004 2.825828 2.7991652 2.7718694 2.7439957 2.7155967 2.6867235 2.657425 2.6277478 2.5977368 2.5674348 2.5368824 2.5061188 2.4751806 2.4441035 2.4129207 2.381664 2.3503633 2.319047 2.287742 2.2564735 2.2252657 2.1941404 2.1631193 2.1322217 2.1014662 2.07087 2.0404491 2.0102189 1.980193 1.9503844 1.9208051 1.891466 1.8623773 1.8335482 1.8049873 1.7767024 1.7487003 1.7209874 1.6935694 1.6664513 1.6396377 1.6131324 1.5869387 1.5610597 1.5354978 1.5102549 1.4853325 1.4607319 1.436454 1.4124992 1.3888677 1.3655593 1.3425736 1.31991 1.2975675 1.2755449 1.2538409 1.2324538 1.2113822 1.1906236 1.1701764 1.1500382 1.1302066 1.1106791 1.0914533 1.0725263 1.0538954 1.0355576 1.01751 0.9997497 0.9822735 0.9650783 0.9481609 0.9315181 0.9151465 0.899043 0.88320416 0.8676267 0.85230726 0.8372424 0.8224289 0.8078632 0.793542 0.779462 0.7656197 0.7520118 0.73863494 0.7254858 0.712561 0.69985735 0.68737143 0.6751 0.6630399 0.6511879 0.63954073 0.6280953 0.6168484 0.605797 0.594938 0.5842683 0.5737849 0.56348485 0.55336523 0.54342306 0.53365546 0.5240596 0.5146327 0.5053719 0.49627456 0.4873379 0.47855923 0.46993595 0.46146545 0.45314518 0.44497257 0.43694517 0.4290605 0.4213161 0.4137096 0.4062387 0.39890102 0.39169428 0.38461623 0.37766466 0.3708374 0.36413226 0.35754716 0.35108 0.34472874 0.33849138 0.33236587 0.3263503 0.32044274 0.3146413 0.3089441 0.30334935 0.2978552 0.2924599 0.2871617 0.2819589 0.2768498 0.27183276 0.2669061 0.2620683 0.25731772 0.25265285 0.24807212 0.24357407 0.23915721 0.23482011 0.23056135 0.2263795 0.22227322 0.21824116 0.21428196 0.21039435 0.20657705 0.20282878 0.19914831 0.19553444 0.19198595 0.18850169 0.1850805 0.18172124 0.1784228 0.17518409 0.17200403 0.16888157 0.16581568 0.16280533 0.15984952 0.15694728 0.15409765 0.15129964 0.14855237 0.14585489 0.14320633 0.14060578 0.13805239 0.1355453 0.13308367 0.1306667 0.12829356 0.12596348 0.12367566 0.12142935 0.11922379 0.117058255 0.11493201 0.11284435 0.11079457 0.10878199 0.10680594 0.10486576 0.10296079 0.101090394 0.09925396 0.09745085 0.09568048 0.093942255 0.09223559 0.0905599 0.08891464 0.08729925 0.08571319 0.08415594 0.08262696 0.08112574 0.079651795 0.07820461 0.07678371 0.07538861 0.07401884 0.07267396 0.07135351 0.070057034 0.06878411 0.067534305 0.0663072 0.06510238 0.063919455 0.06275801 0.06161767 0.06049804 0.059398748 0.058319427 0.057259716 0.05621925 0.05519769 0.05419469 0.05320991 0.05224302 0.051293693 0.05036162

</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="3.125" PeakHeight="237.664" Num="5" zHalfNm="215.76" Error="2.168">
-53.012 7.457 -5.404 2.733 -0.688
</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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="404.54138" C="-0.022164725" Error="0.00593"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6558.0" A="5.749656E10" B="-1.7707242E7" C="1363.3195" Error="0.00593"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6561.0" A="1.0565737E13" B="-3.22241613E9" C="245699.16" Error="0.0186"/>
<QuasiParabolic ID="5" StartDistance="6561.0" EndDistance="6563.0" A="6.2064067E11" B="-1.90836704E8" C="14668.873" Error="0.0125"/>
<QuasiParabolic ID="6" StartDistance="6563.0" EndDistance="6569.0" A="6.3697547E12" B="-1.94281408E9" C="148142.7" Error="0.00681"/>
<QuasiParabolic ID="7" StartDistance="6569.0" EndDistance="6576.0" A="1.22597776E13" B="-3.73609267E9" C="284638.25" Error="0.0133"/>
<QuasiParabolic ID="8" StartDistance="6576.0" EndDistance="6584.0" A="3.6050651E13" B="-1.09717586E10" C="834795.4" Error="0.00782"/>
<QuasiParabolic ID="9" StartDistance="6584.0" EndDistance="6607.664" A="-1.90941348E13" B="5.7793905E9" C="-437315.0" Error="0.015"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="237.664" PeakDensity="121161.6" PeakScaleHeight="17.039" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
