<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 07:45:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.16 (106) 07:45:00</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">
FF202610604160745001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.752" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.911" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.800" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.088" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="233.096" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.790" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.736" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.666" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.405" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.264" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.420" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="16">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
230.000 232.500 235.000 237.500 240.000 242.500 245.000 248.059 251.427 255.153 259.297 263.934 269.158 275.088 281.876 289.724
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 78 75 0 0 0 75 75 0 0 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="327">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 233.096 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0
</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 0.3872742 0.42551312 0.46811056 0.5141708 0.56288075 0.61370283 0.6663649 0.7207765 0.7769892 0.8351078 0.8953068 0.95772463 1.022505 1.0897624 1.1595292 1.2317497 1.3062644 1.3827307 1.4606454 1.5393344 1.617933 1.6955158 1.7711201 1.8438407 1.9129102 1.9776942 2.0377727 2.0928829 2.1429043 2.1877964 2.22761 2.262429 2.2923582 2.317518 2.3380072 2.353932 2.365366 2.3723693 2.3749797 2.375 2.373938 2.3703651 2.3643963 2.35616 2.3457842 2.3333972 2.3191247 2.3030918 2.2854204 2.26623 2.2456367 2.2237527 2.2006874 2.176545 2.1514263 2.1254282 2.0986423 2.071157 2.0430555 2.0144172 1.9853173 1.9558266 1.926012 1.8959364 1.8656585 1.8352338 1.8047141 1.7741472 1.7435781 1.7130485 1.6825967 1.6522586 1.6220669 1.5920519 1.5622411 1.5326599 1.5033313 1.4742763 1.4455137 1.4170607 1.3889325 1.3611426 1.3337033 1.3066248 1.2799166 1.2535865 1.2276413 1.2020868 1.1769274 1.1521668 1.127808 1.1038529 1.0803025 1.0571575 1.0344177 1.0120827 0.9901509 0.9686208 0.94749004 0.92675614 0.9064162 0.8864668 0.8669044 0.8477251 0.8289248 0.8104992 0.79244375 0.7747537 0.7574243 0.7404505 0.7238273 0.70754945 0.69161177 0.6760088 0.6607354 0.64578605 0.63115525 0.61683774 0.6028279 0.58912045 0.5757098 0.56259066 0.5497576 0.5372053 0.5249284 0.51292163 0.50117975 0.48969766 0.47847018 0.46749222 0.45675883 0.44626504 0.43600595 0.42597675 0.41617274 0.4065892 0.39722157 0.38806525 0.37911582 0.3703689 0.36182016 0.35346535 0.34530032 0.33732095 0.32952324 0.32190326 0.3144571 0.30718094 0.30007112 0.2931239 0.28633577 0.27970314 0.2732226 0.26689076 0.2607043 0.25465998 0.24875464 0.24298513 0.23734842 0.23184152 0.22646151 0.22120552 0.21607076 0.21105446 0.20615394 0.2013666 0.19668986 0.1921212 0.18765815 0.1832983 0.17903931 0.17487888 0.17081474 0.1668447 0.16296661 0.15917835 0.15547785 0.15186313 0.1483322 0.14488311 0.14151403 0.13822308 0.13500848 0.13186848 0.12880133 0.12580538 0.12287896 0.120020494 0.117228396 0.11450114 0.11183722 0.10923519 0.106693596 0.104211055 0.101786196 0.099417694 0.09710423 0.094844535 0.09263736 0.090481505 0.08837576 0.08631898 0.08431001 0.08234776 0.08043114 0.07855909 0.07673059 0.0749446 0.073200166 0.0714963 0.06983207 0.068206556 0.06661885 0.06506809 0.06355341 0.062073965 0.060628947 0.05921755 0.057838995 0.05649252 0.055177376 0.053892836 0.052638188 0.051412743 0.050215814

</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="2.375" PeakHeight="233.096" Num="5" zHalfNm="215.79" Error="1.308">
-40.431 2.316 -1.517 0.86 -0.324
</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="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="2422.4766" C="-0.33220756" Error="0.0393"/>
<QuasiParabolic ID="3" StartDistance="6536.0" EndDistance="6557.0" A="8.45986E9" B="-2709591.5" C="216.56892" Error="0.0393"/>
<QuasiParabolic ID="4" StartDistance="6557.0" EndDistance="6563.0" A="3.0185567E11" B="-9.2200456E7" C="7040.6396" Error="0.00968"/>
<QuasiParabolic ID="5" StartDistance="6563.0" EndDistance="6572.0" A="7.8730709E12" B="-2.39944269E9" C="182817.12" Error="0.0383"/>
<QuasiParabolic ID="6" StartDistance="6572.0" EndDistance="6589.0" A="1.13370989E13" B="-3.45362048E9" C="263019.34" Error="0.023"/>
<QuasiParabolic ID="7" StartDistance="6589.0" EndDistance="6603.096" A="-1.91372691E13" B="5.7964534E9" C="-438913.72" Error="0.00748"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
<TopsideChapman PeakHeight="233.096" PeakDensity="69982.94" PeakScaleHeight="13.264" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
