<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 06:45:00.000"
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" >
2026.04.14 (104) 06:45:00</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">
FF202610404140645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.860" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.096" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.325" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="255.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="230.397" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.341" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.098" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.519" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.510" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.422" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.350" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.180" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="23">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.325 2.35 2.375 2.4 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
230.000 232.500 232.500 232.500 235.000 235.000 237.500 237.500 238.333 239.167 240.000 242.500 243.750 245.000 245.000 250.000 250.000 252.500 255.000 260.000 265.000 272.662 284.041
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 69 69 81 84 69 66 0 0 69 69 0 72 69 69 69 72 60 60 45 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="305">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 230.397 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0
</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 0.39654496 0.44418645 0.49638316 0.55262196 0.6125188 0.67583346 0.7424937 0.81245357 0.88579893 0.9625612 1.0428103 1.1265835 1.2138495 1.3044909 1.3983222 1.4949746 1.593987 1.6947112 1.7963945 1.8981391 1.9989315 2.0977726 2.1935978 2.2854898 2.3725455 2.453998 2.5292356 2.5977597 2.6591845 2.7132041 2.7596376 2.7983358 2.8291998 2.8521838 2.8672473 2.8743734 2.875 2.874226 2.8696332 2.8611205 2.8489306 2.833307 2.8144913 2.7927208 2.768229 2.7412426 2.711982 2.6806593 2.6474779 2.612633 2.5763104 2.538686 2.499927 2.4601905 2.4196246 2.3783677 2.3365498 2.2942915 2.2517052 2.2088947 2.1659565 2.1229792 2.0800436 2.0372248 1.9945908 1.9522033 1.9101186 1.8683871 1.8270547 1.786162 1.7457455 1.7058372 1.6664655 1.6276551 1.5894274 1.5518005 1.5147899 1.4784086 1.4426668 1.4075727 1.3731325 1.3393505 1.306229 1.2737694 1.2419713 1.2108328 1.1803514 1.1505231 1.1213433 1.0928063 1.064906 1.0376352 1.0109866 0.98495185 0.9595227 0.93469024 0.9104452 0.8867782 0.8636794 0.841139 0.81914705 0.79769325 0.77676743 0.7563593 0.7364585 0.7170547 0.6981377 0.6796972 0.66172296 0.64420485 0.6271329 0.610497 0.5942874 0.57849437 0.56310827 0.54811966 0.53351915 0.5192976 0.50544596 0.4919553 0.47881693 0.46602225 0.4535628 0.44143036 0.42961684 0.41811427 0.40691492 0.3960111 0.38539547 0.37506062 0.36499947 0.35520506 0.34567055 0.33638927 0.3273547 0.3185605 0.31000045 0.30166847 0.29355863 0.28566518 0.27798244 0.27050495 0.26322728 0.25614426 0.24925071 0.24254169 0.23601232 0.22965787 0.22347373 0.21745539 0.21159846 0.20589866 0.20035182 0.19495389 0.18970092 0.18458904 0.1796145 0.17477365 0.17006291 0.16547884 0.16101803 0.15667719 0.15245314 0.14834273 0.14434293 0.14045079 0.1366634 0.132978 0.12939183 0.12590222 0.1225066 0.11920244 0.115987286 0.11285875 0.10981451 0.1068523 0.10396991 0.101165205 0.098436095 0.095780544 0.09319657 0.09068226 0.088235736 0.08585516 0.083538786 0.081284866 0.07909172 0.07695771 0.074881256 0.0728608 0.07089484 0.06898189 0.06712055 0.065309405 0.06354712 0.06183237 0.06016387 0.058540385 0.05696069 0.055423617 0.053928006 0.052472744 0.051056746

</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="2.875" PeakHeight="230.397" Num="5" zHalfNm="215.341" Error="0.407">
-36.943 0.876 -0.578 0.391 -0.143
</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="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="-813.5181" C="0.16502579" Error="0.014"/>
<QuasiParabolic ID="3" StartDistance="6536.0" EndDistance="6562.0" A="6.1751116E10" B="-1.898281E7" C="1458.8785" Error="0.0149"/>
<QuasiParabolic ID="4" StartDistance="6562.0" EndDistance="6566.0" A="7.6806687E12" B="-2.34111565E9" C="178396.75" Error="0.0467"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6567.0" A="1.67089621E13" B="-5.0911288E9" C="387809.9" Error="2.95E-10"/>
<QuasiParabolic ID="6" StartDistance="6567.0" EndDistance="6575.0" A="1.23795092E13" B="-3.77258061E9" C="287417.94" Error="0.0348"/>
<QuasiParabolic ID="7" StartDistance="6575.0" EndDistance="6589.0" A="2.11663182E13" B="-6.4453745E9" C="490672.2" Error="0.0389"/>
<QuasiParabolic ID="8" StartDistance="6589.0" EndDistance="6600.397" A="-3.9362172E13" B="1.19272131E10" C="-903514.1" Error="0.0118"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
<TopsideChapman PeakHeight="230.397" PeakDensity="102551.18" PeakScaleHeight="11.422" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
