<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 22:50:00.000"
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) 22:50:00</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">
FF202610604162250001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.953" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.242" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.575" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.575" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="251.018" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.575" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.575" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="218.861" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="204.693" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.811" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="20.306" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.645" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.772" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.890" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.260" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 221.429 222.857 224.286 225.714 227.143 228.571 230.000 232.500 232.500 235.000 235.000 237.500 240.000 242.500 245.000 247.500 251.018 255.228 260.354 266.732
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 72 72 75 75 75 75 75 78 78 51 51 0 0 0 0 0 0 93 93 93 96 96 0 99 99 99 93 0 93 93 90
</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 -10.9375 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="292">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.861 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0
</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 0.35317364 0.35223874 0.35086352 0.34905878 0.3468389 0.3442219 0.3411586 0.33767787 0.33367795 0.32927206 0.3243802 0.3189446 0.3129916 0.30645373 0.29930657 0.29149976 0.28296635 0.27368933 0.26350668 0.2523124 0.24007721 0.22657463 0.21160045 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 0.20628572 0.21257143 0.21885714 0.22514285 0.23142858 0.23771429 0.244 0.2502857 0.25657144 0.26285714 0.26914287 0.27542856 0.2817143 0.288 0.2942857 0.30057144 0.30685714 0.31314287 0.31942856 0.3257143 0.332 0.3382857 0.34457144 0.35085714 0.354 0.37478906 0.42167395 0.47540492 0.5354093 0.60096824 0.6715229 0.74674475 0.82650757 0.910873 0.999936 1.0939049 1.1929463 1.2972015 1.4066762 1.5212841 1.6406853 1.7643665 1.8914378 2.0207667 2.15094 2.2803855 2.407363 2.5302556 2.6475086 2.7577872 2.86008 2.9535396 3.037628 3.111965 3.1763263 3.2305887 3.274712 3.3086843 3.3325272 3.346261 3.35 3.3499458 3.3464236 3.3376408 3.3239343 3.3056417 3.2830994 3.2566388 3.2265847 3.1932528 3.1569488 3.117967 3.0765886 3.0330825 2.9877033 2.940692 2.8922756 2.842667 2.792066 2.7406583 2.6886163 2.6361 2.5832572 2.5302238 2.4771247 2.4240735 2.3711743 2.3185217 2.2662008 2.2142882 2.162853 2.111957 2.0616546 2.011994 1.9630172 1.9147614 1.8672581 1.8205342 1.7746123 1.7295113 1.685246 1.6418283 1.5992669 1.5575677 1.5167344 1.476768 1.4376677 1.3994311 1.3620536 1.3255297 1.2898521 1.2550128 1.2210023 1.1878107 1.1554269 1.1238393 1.0930356 1.0630033 1.0337291 1.0051997 0.97740114 0.95031965 0.9239411 0.8982511 0.87323546 0.8488799 0.8251699 0.8020914 0.77963006 0.7577718 0.7365025 0.71580845 0.6956758 0.676091 0.65704083 0.63851196 0.62049145 0.60296655 0.5859247 0.5693536 0.5532412 0.53757554 0.52234507 0.50753844 0.49314442 0.47915214 0.46555093 0.45233035 0.43948022 0.42699057 0.41485164 0.40305397 0.39158827 0.3804455 0.36961687 0.3590937 0.34886762 0.33893052 0.32927433 0.31989133 0.31077397 0.30191484 0.29330677 0.28494278 0.27681604 0.26891994 0.26124805 0.25379404 0.24655186 0.23951553 0.23267926 0.22603744 0.21958458 0.21331538 0.20722465 0.20130734 0.19555856 0.18997355 0.18454768 0.17927644 0.17415544 0.16918045 0.16434732 0.15965202 0.15509064 0.1506594 0.14635456 0.14217257 0.13810992 0.13416322 0.13032918 0.12660457 0.12298632 0.11947136 0.11605677 0.11273969 0.109517336 0.10638702 0.10334611 0.10039206 0.09752239 0.094734706 0.09202666 0.089395985 0.086840466 0.08435797 0.08194641 0.079603754 0.07732805 0.07511737 0.072969876 0.07088375 0.068857245 0.06688866 0.06497634 0.063118674 0.06131411 0.059561122 0.057858244 0.05620404 0.05459712 0.053036135 0.051519774 0.05004676

</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="3.35" PeakHeight="218.861" Num="5" zHalfNm="204.693" Error="0.757">
-35.911 1.136 -0.884 0.502 -0.204
</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="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="-2350.2769" C="0.40133977" Error="0.0341"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6553.0" A="1.12306774E11" B="-3.4487024E7" C="2647.5833" Error="0.0341"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6556.0" A="1.7249718E13" B="-5.2648888E9" C="401732.1" Error="0.0363"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6561.0" A="1.1463381E13" B="-3.49968538E9" C="267107.06" Error="0.0235"/>
<QuasiParabolic ID="6" StartDistance="6561.0" EndDistance="6578.0" A="3.07106436E13" B="-9.3668588E9" C="714232.0" Error="0.0282"/>
<QuasiParabolic ID="7" StartDistance="6578.0" EndDistance="6588.861" A="-5.8817946E13" B="1.78537513E10" C="-1354832.4" Error="0.01"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="218.861" PeakDensity="139236.97" PeakScaleHeight="10.772" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
