<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 05:55:00.000"
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" >
2026.04.14 (104) 05:55:00</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">
FF202610404140555001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.707" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.286" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="2.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="283.616" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="246.666" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.968" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.334" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.817" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.525" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.565" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.100" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="20">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.3 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
247.500 250.000 251.429 252.857 254.286 255.714 257.143 258.571 260.000 262.500 265.000 265.000 267.500 270.000 272.500 275.679 279.344 283.616 288.659 294.702
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 0 0 0 0 0 69 69 72 69 66 69 72 66 69 66 69 66
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="340">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.08333 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.16667 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.25 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 246.666 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0
</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 0.35354906 0.35298675 0.3521277 0.3511249 0.34983355 0.34833378 0.34655926 0.3445913 0.34229675 0.3398302 0.33706498 0.33401984 0.33071515 0.327109 0.32322994 0.31904808 0.31454307 0.3097052 0.30453598 0.29904887 0.29310012 0.2867813 0.2800439 0.2727352 0.26502842 0.25670934 0.24776544 0.23820302 0.22786881 0.21668318 0.20459439 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 0.204 0.2088 0.2136 0.2184 0.2232 0.228 0.2328 0.2376 0.2424 0.2472 0.252 0.2568 0.2616 0.2664 0.2712 0.276 0.2808 0.2856 0.2904 0.2952 0.3 0.3048 0.3096 0.3144 0.3192 0.324 0.3288 0.3336 0.3384 0.3432 0.348 0.3528 0.354 0.38283285 0.4231032 0.4657371 0.5109984 0.5590864 0.61019343 0.6644408 0.7219099 0.7826542 0.84664786 0.913853 0.984126 1.0573201 1.1331973 1.2115096 1.2919434 1.3741456 1.4577445 1.5423242 1.627492 1.7127812 1.7977444 1.8819361 1.964884 2.0461354 2.12521 2.2016547 2.2750287 2.3448796 2.4107733 2.4722855 2.5290444 2.580663 2.626798 2.667132 2.7013936 2.729333 2.750756 2.7655075 2.773481 2.775 2.7748096 2.7720134 2.7660155 2.7569914 2.7451177 2.7305703 2.7135234 2.6941495 2.6726165 2.6490893 2.6237278 2.5966866 2.5681152 2.5381572 2.5069501 2.4746253 2.441308 2.4071174 2.3721657 2.33656 2.3004003 2.2637813 2.2267914 2.189514 2.152026 2.1144 2.0767026 2.0389967 2.0013394 1.963784 1.9263791 1.8891696 1.8521965 1.8154972 1.7791055 1.7430525 1.7073656 1.6720698 1.6371874 1.602738 1.568739 1.535206 1.5021517 1.4695877 1.4375236 1.4059674 1.3749253 1.3444027 1.3144032 1.2849295 1.2559831 1.2275646 1.1996735 1.1723088 1.1454685 1.1191498 1.0933495 1.0680639 1.0432884 1.0190184 0.9952486 0.9719735 0.9491871 0.9268832 0.9050555 0.8836973 0.8628016 0.8423616 0.8223701 0.8028199 0.7837036 0.7650139 0.74674326 0.72888434 0.71142954 0.6943715 0.67770267 0.6614156 0.6455029 0.6299572 0.6147712 0.5999376 0.5854493 0.5712991 0.5574799 0.5439849 0.53080714 0.51793987 0.5053764 0.49311015 0.4811346 0.46944338 0.45803022 0.44688895 0.4360135 0.42539787 0.41503623 0.4049228 0.395052 0.38541818 0.376016 0.3668401 0.3578852 0.3491463 0.34061828 0.3322963 0.3241755 0.3162512 0.30851874 0.30097365 0.29361153 0.286428 0.27941886 0.27258 0.26590735 0.25939694 0.25304493 0.24684751 0.24080102 0.23490183 0.2291464 0.2235313 0.21805315 0.21270865 0.2074946 0.20240784 0.19744529 0.19260398 0.18788095 0.18327338 0.17877842 0.17439339 0.1701156 0.16594248 0.16187143 0.15790004 0.15402585 0.1502465 0.1465597 0.14296317 0.13945474 0.13603225 0.1326936 0.12943678 0.12625976 0.12316059 0.12013739 0.11718831 0.114311524 0.11150527 0.10876783 0.10609752 0.10349269 0.10095176 0.09847315 0.096055344 0.09369685 0.09139621 0.08915202 0.0869629 0.08482749 0.08274449 0.080712594 0.07873057 0.07679719 0.07491126 0.073071614 0.071277134 0.069526695 0.06781922 0.06615367 0.064529 0.06294422 0.061398342 0.059890416 0.058419514 0.056984726 0.05558517 0.05421997 0.052888293 0.051589314 0.050322235

</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="2.775" PeakHeight="246.666" Num="5" zHalfNm="229.968" Error="0.389">
-40.553 0.202 -0.113 0.01 0.038
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6512.083" A="-1.47549225E11" B="4.5539884E7" C="-3513.7546" Error="0.00163"/>
<QuasiParabolic ID="2" StartDistance="6512.083" EndDistance="6544.167" A="0.0" B="-1235.1047" C="0.22968978" Error="0.0239"/>
<QuasiParabolic ID="3" StartDistance="6544.167" EndDistance="6572.0" A="6.0873269E10" B="-1.8673154E7" C="1432.0402" Error="0.0239"/>
<QuasiParabolic ID="4" StartDistance="6572.0" EndDistance="6575.0" A="-3.74372467E11" B="1.13781424E8" C="-8645.149" Error="0.00352"/>
<QuasiParabolic ID="5" StartDistance="6575.0" EndDistance="6578.0" A="1.04088103E13" B="-3.16627405E9" C="240788.73" Error="0.0251"/>
<QuasiParabolic ID="6" StartDistance="6578.0" EndDistance="6586.0" A="7.6310386E12" B="-2.32170982E9" C="176592.61" Error="0.0331"/>
<QuasiParabolic ID="7" StartDistance="6586.0" EndDistance="6592.0" A="1.85774134E13" B="-5.6458445E9" C="428956.3" Error="0.0072"/>
<QuasiParabolic ID="8" StartDistance="6592.0" EndDistance="6606.0" A="9.9665681E12" B="-3.03333069E9" C="230798.4" Error="0.0289"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6616.666" A="-3.25827963E13" B="9.848705E9" C="-744227.0" Error="0.00884"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="96.25" Depth="0.154"/>
<TopsideChapman PeakHeight="246.666" PeakDensity="95541.25" PeakScaleHeight="12.565" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
