<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-30 -120 06:55:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.30 (120) 06:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202612004300655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.636" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.816" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="3.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="282.236" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="250.512" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="230.174" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.030" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.093" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.353" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.582" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.000" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.770" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="44">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 245.000 245.000 245.000 247.500 247.500 247.500 250.000 250.000 250.000 252.500 252.500 255.000 255.000 255.000 257.500 257.500 260.000 260.000 262.500 265.000 265.000 267.500 267.500 267.500 272.500 274.285 276.418 279.012 282.236 286.350 291.781 299.285 310.324 328.168 361.917
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 84 84 84 81 99 99 87 84 99 99 99 96 99 99 96 99 99 96 84 78 72 75 84 87 81 84 78 69 66 60 63 60 87 87 90 90 87 90 87 87 87 0 81
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="405">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.33333 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.66667 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 250.512 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0
</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 0.3538872 0.35347393 0.35283697 0.35190412 0.35075444 0.34931904 0.34760568 0.34569573 0.3434548 0.34089813 0.338043 0.33497614 0.33158195 0.3278234 0.3237977 0.31935477 0.31466332 0.30954042 0.30405807 0.29813874 0.29176548 0.28499955 0.27773643 0.26987928 0.2613832 0.2523016 0.2425206 0.23193197 0.22042523 0.20793872 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 0.2 0.2 0.2 0.20169231 0.20676923 0.21184616 0.21692307 0.222 0.22707692 0.23215385 0.23723076 0.2423077 0.24738462 0.25246155 0.25753847 0.26261538 0.2676923 0.27276924 0.27784616 0.28292307 0.288 0.29307693 0.29815385 0.30323076 0.30830768 0.31338462 0.31846154 0.32353845 0.3286154 0.3336923 0.33876923 0.34384614 0.3489231 0.354 0.39011788 0.43006003 0.4734207 0.5198171 0.5689656 0.62071806 0.6750338 0.7319844 0.79167926 0.8543412 0.92018104 0.9894887 1.0625823 1.139782 1.2214526 1.3079808 1.3997067 1.4969848 1.6000489 1.7090757 1.8240217 1.9446491 2.0703194 2.2001698 2.3328807 2.4668837 2.6004682 2.731933 2.8596694 2.982434 3.0991826 3.2092776 3.3123412 3.4081624 3.4967673 3.5782225 3.6527057 3.720429 3.781609 3.8364496 3.885189 3.9280078 3.965088 3.9965909 4.0226493 4.0433764 4.0588565 4.069159 4.074331 4.075 4.074612 4.0714436 4.0651956 4.056002 4.044 4.029325 4.0121126 3.9924965 3.97061 3.9465837 3.9205465 3.8926241 3.8629398 3.8316135 3.7987616 3.764497 3.7289293 3.6921642 3.6543033 3.6154447 3.5756826 3.5351074 3.493805 3.4518583 3.4093456 3.3663423 3.3229194 3.2791448 3.2350826 3.1907935 3.146335 3.1017613 3.0571234 3.0124693 2.9678442 2.9232903 2.8788474 2.8345523 2.7904396 2.7465415 2.7028878 2.659506 2.616422 2.5736592 2.5312395 2.4891825 2.447507 2.406229 2.3653638 2.3249254 2.2849255 2.2453756 2.206285 2.1676626 2.129516 2.0918512 2.0546741 2.0179894 1.9818007 1.946111 1.9109226 1.876237 1.8420553 1.8083776 1.7752037 1.7425328 1.7103639 1.6786948 1.6475236 1.616848 1.5866648 1.556971 1.5277629 1.499037 1.4707891 1.443015 1.4157102 1.3888701 1.3624899 1.3365645 1.311089 1.2860581 1.2614664 1.2373086 1.213579 1.1902723 1.1673827 1.1449046 1.1228323 1.10116 1.0798821 1.0589927 1.0384862 1.0183567 0.9985984 0.97920567 0.9601728 0.94149405 0.92316383 0.90517646 0.88752633 0.8702079 0.85321575 0.83654433 0.82018834 0.8041423 0.78840095 0.77295905 0.7578114 0.742953 0.7283786 0.71408325 0.7000621 0.6863101 0.6728226 0.6595948 0.64662194 0.6338995 0.6214229 0.6091876 0.59718925 0.58542347 0.5738859 0.5625725 0.55147886 0.54060113 0.5299351 0.519477 0.50922275 0.4991686 0.4893108 0.4796456 0.4701694 0.46087855 0.45176962 0.44283906 0.43408355 0.4254997 0.41708425 0.40883395 0.40074566 0.39281625 0.38504267 0.37742195 0.3699511 0.36262724 0.35544753 0.3484092 0.3415095 0.3347457 0.32811525 0.3216155 0.31524393 0.30899802 0.30287534 0.2968735 0.29099017 0.28522298 0.27956966 0.27402803 0.26859587 0.2632711 0.25805154 0.25293514 0.24791993 0.24300389 0.23818508 0.23346159 0.22883154 0.22429313 0.2198445 0.21548395 0.2112097 0.20702006 0.20291339 0.19888802 0.19494237 0.19107488 0.187284 0.1835682 0.17992601 0.17635599 0.1728567 0.16942677 0.16606481 0.16276948 0.15953946 0.15637347 0.15327024 0.15022853 0.14724714 0.14432484 0.1414605 0.13865295 0.13590106 0.13320377 0.13055997 0.1279686 0.12542862 0.12293902 0.120498806 0.118107 0.115762636 0.11346478 0.111212514 0.10900493 0.10684114 0.10472029 0.102641515 0.10060398 0.098606884 0.09664941 0.09473078 0.09285022 0.09100699 0.089200325 0.087429516 0.08569385 0.08399263 0.082325175 0.080690816 0.07908889 0.07751875 0.075979784 0.07447136 0.072992876 0.07154374 0.07012337 0.06873118 0.06736664 0.066029176 0.06471826 0.063433364 0.062173977 0.06093959 0.059729706 0.05854384 0.05738151 0.056242257 0.05512562 0.05403115 0.052958403 0.051906954 0.050876383

</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="4.075" PeakHeight="250.512" Num="5" zHalfNm="230.174" Error="1.24">
-52.131 4.737 -3.415 1.734 -0.437
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6510.333" A="-1.64983013E11" B="5.0920684E7" C="-3928.9397" Error="0.00156"/>
<QuasiParabolic ID="2" StartDistance="6510.333" EndDistance="6540.667" A="0.0" B="1893.7615" C="-0.2508625" Error="0.0332"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6562.0" A="4.5596247E9" B="-1505805.1" C="123.678345" Error="0.0332"/>
<QuasiParabolic ID="4" StartDistance="6562.0" EndDistance="6570.0" A="2.28019438E11" B="-6.9613032E7" C="5313.196" Error="0.016"/>
<QuasiParabolic ID="5" StartDistance="6570.0" EndDistance="6580.0" A="8.4362951E12" B="-2.56832717E9" C="195474.1" Error="0.0381"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6588.0" A="1.76376292E13" B="-5.3650847E9" C="407993.7" Error="0.0247"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6601.0" A="4.0761182E13" B="-1.23849851E10" C="940773.0" Error="0.027"/>
<QuasiParabolic ID="8" StartDistance="6601.0" EndDistance="6620.512" A="-3.9177387E13" B="1.18351534E10" C="-893808.0" Error="0.0111"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="250.512" PeakDensity="206025.12" PeakScaleHeight="15.582" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
