<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 07:15:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.16 (106) 07:15:00</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">
FF202610604160715001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.818" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.931" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="217.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="217.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.354" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="229.300" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="209.581" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.892" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.129" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.777" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.166" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.730" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.970" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="43">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 225.000 225.000 225.000 227.500 227.500 227.500 230.000 230.000 230.000 232.500 232.500 232.500 235.000 235.000 237.500 237.500 240.000 242.500 242.500 245.000 247.500 249.000 250.751 252.822 255.310 258.354 262.164 267.072 273.631 282.845 296.730
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 81 81 66 72 72 69 54 54 54 54 66 69 84 81 75 75 72 72 75 75 75 75 75 75 72 75 60 60 48 48 69 0 0 0 0 0 81 0 0 0 81
</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 10.9375 1.5625 -1.5625 -1.5625 -1.5625 -7.8125 -1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="366">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 160.16667 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 229.3 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0
</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 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.38673693 0.43189344 0.47841135 0.52625597 0.5755851 0.6266038 0.67962265 0.73493993 0.7929081 0.8538828 0.91825354 0.9864231 1.0588499 1.1359177 1.2180474 1.3055444 1.3985633 1.4970347 1.6005213 1.7081765 1.8186281 1.9301767 2.0408788 2.1488342 2.2524745 2.350583 2.4424338 2.52764 2.606102 2.6779318 2.7433522 2.8026118 2.8560252 2.9038887 2.9464672 2.9840174 3.0167763 3.0449288 3.068651 3.0880795 3.1033354 3.1145048 3.1216524 3.124822 3.125 3.124356 3.1212559 3.1156905 3.1077728 3.0976157 3.0853322 3.0710344 3.054834 3.0368404 3.0171618 2.9959047 2.973172 2.949065 2.9236817 2.8971176 2.869465 2.8408127 2.8112466 2.7808492 2.7496996 2.7178738 2.6854446 2.6524808 2.6190486 2.585211 2.5510278 2.516555 2.4818468 2.4469535 2.4119232 2.3768005 2.341628 2.3064456 2.2712903 2.2361972 2.201199 2.166326 2.1316066 2.0970669 2.0627313 2.0286224 1.9947608 1.9611657 1.9278547 1.8948436 1.8621471 1.8297786 1.7977496 1.7660714 1.7347534 1.703804 1.673231 1.6430408 1.6132392 1.5838311 1.5548203 1.5262104 1.4980041 1.4702032 1.4428091 1.4158227 1.3892446 1.3630742 1.337311 1.3119541 1.2870021 1.2624531 1.238305 1.2145554 1.1912018 1.168241 1.14567 1.1234854 1.1016836 1.0802609 1.0592133 1.0385369 1.0182275 0.99828064 0.9786921 0.95945746 0.94057214 0.9220315 0.90383095 0.88596576 0.8684312 0.8512226 0.83433497 0.81776375 0.8015041 0.78555113 0.76990014 0.75454634 0.73948497 0.72471124 0.7102205 0.6960081 0.6820693 0.6683996 0.65499425 0.6418488 0.62895876 0.6163197 0.6039272 0.59177685 0.5798643 0.56818545 0.55673593 0.5455117 0.53450865 0.52372265 0.51314974 0.502786 0.49262756 0.48267058 0.47291127 0.46334597 0.453971 0.44478276 0.4357777 0.42695233 0.41830325 0.40982708 0.4015205 0.39338022 0.38540304 0.37758586 0.3699255 0.36241898 0.3550633 0.34785548 0.34079266 0.33387196 0.32709068 0.320446 0.3139353 0.30755588 0.3013052 0.2951807 0.28917986 0.28330028 0.2775395 0.2718952 0.26636505 0.2609468 0.2556382 0.25043708 0.24534129 0.24034871 0.23545729 0.23066501 0.22596988 0.22136995 0.21686333 0.21244814 0.20812252 0.2038847 0.1997329 0.1956654 0.1916805 0.18777654 0.18395187 0.18020491 0.1765341 0.17293788 0.16941476 0.16596326 0.16258195 0.15926938 0.15602417 0.15284498 0.14973046 0.14667928 0.14369018 0.14076191 0.13789323 0.13508293 0.13232982 0.12963276 0.12699059 0.12440221 0.12186653 0.11938248 0.116949 0.11456508 0.11222971 0.1099419 0.10770068 0.10550512 0.103354275 0.101247236 0.09918313 0.09716107 0.095180206 0.0932397 0.09133873 0.089476496 0.0876522 0.08586509 0.08411438 0.08239936 0.080719285 0.07907345 0.07746116 0.07588173 0.07433449 0.07281878 0.07133397 0.06987942 0.06845452 0.06705867 0.06569126 0.06435174 0.06303952 0.061754048 0.060494784 0.059261188 0.058052745 0.056868937 0.05570926 0.05457323 0.05346036 0.052370176 0.051302224 0.050256044

</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="3.125" PeakHeight="229.3" Num="5" zHalfNm="209.581" Error="0.614">
-47.547 5.568 -3.474 1.729 -0.326
</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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="-53.1612" C="0.048185185" Error="0.00111"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6553.0" A="7.107031E10" B="-2.1870684E7" C="1682.5852" Error="0.00111"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6554.0" A="-2.33466416E12" B="7.1236845E8" C="-54340.543" Error="6.29E-11"/>
<QuasiParabolic ID="5" StartDistance="6554.0" EndDistance="6557.0" A="1.2912599E13" B="-3.94044314E9" C="300619.12" Error="0.0247"/>
<QuasiParabolic ID="6" StartDistance="6557.0" EndDistance="6558.0" A="-1.5388153E12" B="4.67491808E8" C="-35505.223" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6558.0" EndDistance="6566.0" A="7.9890859E12" B="-2.43824205E9" C="186035.94" Error="0.0117"/>
<QuasiParabolic ID="8" StartDistance="6566.0" EndDistance="6580.0" A="2.53769925E13" B="-7.7345889E9" C="589352.0" Error="0.0194"/>
<QuasiParabolic ID="9" StartDistance="6580.0" EndDistance="6599.3" A="-2.38685426E13" B="7.2336589E9" C="-548052.8" Error="0.00456"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="229.3" PeakDensity="121161.6" PeakScaleHeight="15.166" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
