<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 07:10:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 07:10:00</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">
FF202610304130710001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.683" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.405" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="275.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="275.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.825" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="296.152" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="253.916" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="238.143" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.926" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.499" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.514" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.757" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.930" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="8">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 277.500 280.000 282.371 285.080 288.204 291.848 296.152
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 69 69 69 0 0 42
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="336">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.83566 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.67134 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 214.507 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 253.916 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0
</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 0.35362422 0.35313663 0.3524263 0.35157037 0.35049725 0.34921128 0.3477177 0.3460227 0.34413323 0.34198672 0.3396642 0.33710685 0.33432856 0.33134422 0.3281055 0.32457134 0.32083055 0.3168481 0.3125975 0.30800676 0.3031285 0.29796705 0.29246598 0.28664172 0.2804228 0.27378634 0.26668873 0.25916672 0.25116417 0.24262017 0.23342186 0.2235324 0.21300717 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 0.2 0.2 0.2 0.2 0.2 0.20145296 0.20587371 0.21029447 0.21471523 0.21913598 0.22355674 0.2279775 0.23239826 0.23681901 0.24123977 0.24566051 0.25008127 0.25450203 0.2589228 0.26334354 0.2677643 0.27218506 0.2766058 0.28102657 0.28544733 0.2898681 0.29428884 0.2987096 0.30313036 0.30755112 0.31197187 0.31639263 0.3208134 0.32523414 0.3296549 0.33407566 0.33849642 0.34291717 0.34733793 0.3517587 0.354 0.37441698 0.41610074 0.45919818 0.50456595 0.5527726 0.604277 0.6593919 0.7183103 0.7811227 0.8477461 0.9180132 0.99160284 1.0681436 1.1471721 1.2282652 1.3109453 1.3948078 1.4794483 1.5645308 1.6497148 1.7347193 1.8192487 1.9030408 1.9858168 2.0672688 2.1470933 2.2249424 2.3004441 2.3731613 2.4426167 2.5082688 2.5695503 2.6258197 2.676405 2.720619 2.7577996 2.7873023 2.8085878 2.8212295 2.825 2.824986 2.8227 2.8166556 2.8070707 2.7941647 2.7781558 2.759261 2.737693 2.7136607 2.687367 2.6590083 2.6287742 2.5968473 2.5634015 2.5286033 2.4926107 2.4555733 2.4176328 2.3789225 2.339567 2.299684 2.2593827 2.218765 2.177926 2.136953 2.0959275 2.0549238 2.014011 1.9732516 1.9327031 1.892418 1.8524435 1.8128225 1.7735934 1.7347909 1.6964457 1.6585848 1.6212325 1.5844094 1.5481337 1.5124209 1.477284 1.4427338 1.408779 1.3754267 1.3426816 1.3105477 1.2790267 1.2481195 1.2178255 1.1881434 1.1590703 1.1306028 1.1027368 1.0754672 1.0487883 1.0226939 0.99717724 0.97223115 0.9478481 0.92402 0.9007387 0.87799585 0.85578257 0.83409005 0.81290936 0.7922313 0.77204674 0.75234634 0.7331209 0.7143611 0.6960576 0.6782012 0.66078264 0.64379275 0.6272224 0.61106265 0.5953045 0.57993907 0.56495774 0.55035174 0.5361126 0.522232 0.5087016 0.49551332 0.48265913 0.4701312 0.45792174 0.44602326 0.43442824 0.4231294 0.41211957 0.40139174 0.39093906 0.38075474 0.3708322 0.361165 0.3517468 0.34257144 0.33363283 0.3249251 0.31644243 0.30817923 0.30012992 0.2922891 0.28465158 0.2772121 0.26996577 0.26290756 0.25603274 0.24933662 0.24281463 0.23646234 0.23027539 0.22424954 0.21838066 0.21266471 0.20709777 0.20167598 0.19639562 0.19125302 0.18624464 0.18136701 0.17661673 0.17199053 0.16748518 0.16309755 0.15882458 0.15466331 0.15061082 0.1466643 0.14282101 0.13907823 0.13543338 0.13188387 0.12842725 0.12506111 0.121783055 0.11859081 0.115482144 0.11245486 0.10950685 0.10663604 0.10384041 0.101118 0.098466896 0.09588525 0.09337122 0.09092306 0.08853904 0.08621749 0.08395677 0.08175529 0.0796115 0.0775239 0.075491 0.07351139 0.071583666 0.06970647 0.06787848 0.06609841 0.064365 0.062677026 0.06103331 0.05943268 0.05787402 0.056356225 0.05487822 0.05343897 0.052037455 0.050672688

</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="2.825" PeakHeight="253.916" Num="5" zHalfNm="238.143" Error="0.496">
-38.742 -1.188 0.781 -0.462 0.202
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6514.836" A="-1.25242016E11" B="3.8654944E7" C="-2982.509" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6514.836" EndDistance="6549.671" A="0.0" B="2814.7295" C="-0.39201364" Error="0.0566"/>
<QuasiParabolic ID="3" StartDistance="6549.671" EndDistance="6580.0" A="-4.26080026E9" B="1194756.0" C="-83.05338" Error="0.0566"/>
<QuasiParabolic ID="4" StartDistance="6580.0" EndDistance="6585.0" A="1.87422815E12" B="-5.6977453E8" C="43303.67" Error="0.0966"/>
<QuasiParabolic ID="5" StartDistance="6585.0" EndDistance="6615.0" A="1.20633405E13" B="-3.66441779E9" C="278280.38" Error="0.0793"/>
<QuasiParabolic ID="6" StartDistance="6615.0" EndDistance="6623.916" A="-4.2139245E13" B="1.27233638E10" C="-960403.0" Error="0.00883"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="104.507" Depth="0.154"/>
<TopsideChapman PeakHeight="253.916" PeakDensity="99015.195" PeakScaleHeight="11.757" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
