<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 07:25:00.000"
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: 80% PACIFIC flags: Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.23 (113) 07:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202611304230725001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.786" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.819" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="220.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" 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="3.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.664" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="233.955" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="213.579" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.829" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.043" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.081" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.541" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.960" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="66">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 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 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 233.750 235.000 235.000 235.000 237.500 237.500 237.500 237.500 240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 250.000 252.500 252.500 252.500 257.500 257.500 260.000 262.077 264.832 268.664 274.353 283.686 301.811 352.212
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 66 69 78 78 66 69 57 57 57 57 57 60 69 69 75 75 78 75 75 75 78 78 75 78 75 75 75 75 63 60 51 51 60 54 0 66 72 72 96 99 87 84 87 87 87 87 96 99 84 87 96 93 90 87 96 99 87 87 87 78 75 78 78 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 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 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="383">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.66667 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 161.33333 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 233.955 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0
</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 0.35324875 0.3523882 0.35108605 0.34949994 0.34749252 0.3450799 0.34228173 0.3391207 0.33555436 0.33154994 0.32708573 0.3222145 0.31684378 0.31099588 0.3045735 0.29760364 0.290026 0.28171796 0.27274016 0.2629728 0.2523031 0.24063194 0.22781542 0.21374473 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 0.21 0.216 0.222 0.228 0.234 0.24 0.246 0.252 0.258 0.264 0.27 0.276 0.282 0.288 0.294 0.3 0.306 0.312 0.318 0.324 0.33 0.336 0.342 0.348 0.354 0.39138654 0.43014523 0.47060466 0.51307845 0.55788064 0.6053104 0.65572923 0.70948225 0.76697034 0.8286245 0.89489037 0.9662527 1.0431991 1.126213 1.2157292 1.3120437 1.415321 1.525391 1.6417426 1.763413 1.8890395 2.0168877 2.1450727 2.2717845 2.3953352 2.514434 2.6280842 2.7356617 2.8367836 2.9312882 3.019153 3.1005118 3.1754694 3.2442205 3.3069673 3.3639054 3.4152172 3.4610875 3.5016742 3.537126 3.5675697 3.593113 3.6138554 3.6298628 3.6411998 3.647902 3.65 3.649997 3.648411 3.6439989 3.6368816 3.627182 3.6150224 3.6005259 3.5838134 3.565006 3.5442226 3.5215802 3.4971933 3.4711745 3.4436328 3.4146752 3.3844044 3.3529212 3.3203218 3.2866998 3.252145 3.216744 3.180579 3.1437297 3.1062722 3.0682783 3.0298173 2.9909549 2.9517534 2.9122715 2.8725657 2.8326886 2.7926905 2.752618 2.712516 2.672426 2.632387 2.5924356 2.5526059 2.51293 2.4734375 2.4341562 2.3951118 2.3563278 2.3178263 2.2796273 2.2417493 2.2042096 2.1670232 2.1302044 2.093766 2.0577192 2.0220745 1.986841 1.9520267 1.9176388 1.8836832 1.8501654 1.8170897 1.7844597 1.7522784 1.7205479 1.6892699 1.6584454 1.6280746 1.5981578 1.568694 1.5396824 1.5111214 1.4830095 1.4553442 1.428123 1.4013433 1.3750019 1.3490955 1.3236203 1.2985729 1.2739489 1.2497445 1.2259552 1.2025765 1.179604 1.157033 1.1348584 1.1130757 1.0916798 1.0706656 1.0500282 1.0297625 1.0098631 0.9903252 0.97114336 0.95231247 0.9338273 0.9156827 0.89787334 0.8803942 0.86324006 0.8464058 0.82988626 0.81367636 0.7977711 0.7821654 0.76685435 0.75183296 0.7370963 0.7226397 0.7084582 0.69454706 0.6809017 0.6675174 0.6543896 0.64151376 0.62888545 0.6165002 0.60435367 0.5924416 0.5807597 0.5693039 0.5580699 0.54705375 0.5362515 0.5256591 0.51527274 0.50508857 0.49510285 0.48531187 0.475712 0.46629965 0.4570713 0.4480235 0.4391528 0.4304559 0.42192945 0.41357026 0.4053751 0.3973409 0.38946453 0.38174298 0.3741733 0.3667526 0.35947797 0.3523466 0.34535575 0.3385027 0.33178478 0.3251994 0.31874394 0.31241596 0.3062129 0.3001324 0.29417205 0.28832948 0.28260243 0.27698866 0.27148592 0.2660921 0.26080498 0.25562254 0.2505427 0.24556349 0.2406829 0.23589902 0.23120992 0.22661376 0.2221087 0.21769299 0.21336481 0.2091225 0.20496431 0.20088863 0.19689381 0.19297826 0.18914044 0.18537878 0.1816918 0.178078 0.17453596 0.17106427 0.16766152 0.16432634 0.16105743 0.15785344 0.15471311 0.15163517 0.14861839 0.14566155 0.14276347 0.13992299 0.13713896 0.13441028 0.13173583 0.12911455 0.12654538 0.12402728 0.121559255 0.119140305 0.11676945 0.11444573 0.11216823 0.109936014 0.107748196 0.10560389 0.10350224 0.101442374 0.09942349 0.097444765 0.0955054 0.09360461 0.09174164 0.08991572 0.08812613 0.086372145 0.08465305 0.08296817 0.0813168 0.07969829 0.078111984 0.07655724 0.075033434 0.07353995 0.07207618 0.07064154 0.069235444 0.06785733 0.06650665 0.065182835 0.06388537 0.062613726 0.061367385 0.06014585 0.05894863 0.05777523 0.056625184 0.055498026 0.054393303 0.053310566 0.05224938 0.051209312 0.050189946

</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="3.65" PeakHeight="233.955" Num="5" zHalfNm="213.579" Error="0.464">
-50.039 5.625 -3.734 1.322 -0.129
</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="6505.667" A="-2.30120505E11" B="7.1024848E7" C="-5480.187" Error="0.00139"/>
<QuasiParabolic ID="2" StartDistance="6505.667" EndDistance="6531.333" A="0.0" B="604.3245" C="-0.052880496" Error="0.00884"/>
<QuasiParabolic ID="3" StartDistance="6531.333" EndDistance="6555.0" A="5.3234549E10" B="-1.6410201E7" C="1264.6453" Error="0.00884"/>
<QuasiParabolic ID="4" StartDistance="6555.0" EndDistance="6558.0" A="5.7216876E12" B="-1.74591539E9" C="133187.23" Error="0.0167"/>
<QuasiParabolic ID="5" StartDistance="6558.0" EndDistance="6563.0" A="7.2069483E12" B="-2.19887667E9" C="167722.27" Error="0.0238"/>
<QuasiParabolic ID="6" StartDistance="6563.0" EndDistance="6567.0" A="8.978669E12" B="-2.73878861E9" C="208855.27" Error="0.00754"/>
<QuasiParabolic ID="7" StartDistance="6567.0" EndDistance="6570.0" A="1.99663173E13" B="-6.0851108E9" C="463638.44" Error="0.0036"/>
<QuasiParabolic ID="8" StartDistance="6570.0" EndDistance="6584.0" A="3.28503698E13" B="-1.00071967E10" C="762122.94" Error="0.0288"/>
<QuasiParabolic ID="9" StartDistance="6584.0" EndDistance="6603.955" A="-3.08840633E13" B="9.3532017E9" C="-708138.25" Error="0.0129"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="77.0" Depth="0.154"/>
<TopsideChapman PeakHeight="233.955" PeakDensity="165291.56" PeakScaleHeight="15.541" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
