<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 01:20:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 45% PACIFIC flags: Multiple candidates for F2x cusp, F2 cusps do not match, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.02 (122) 01:20:00</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="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205020120001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.579" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.973" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="253.834" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="234.809" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.467" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.327" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.010" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.444" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="25">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 246.250 247.500 250.000 250.000 252.500 255.000 257.500 257.500 260.000 262.500 265.000 267.500 270.000 274.500 279.000 283.500 288.000 292.500 297.500 300.000 302.500 308.358 314.865 322.134
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 0 96 96 96 96 96 96 96 96 0 81 102 102 0 0 0 0 93 90 90 93 75 0 0
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="385">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 253.834 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0
</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 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.36974084 0.40387744 0.44148982 0.48239732 0.52639353 0.57328445 0.6228883 0.6750987 0.72984445 0.7871194 0.84694195 0.9093397 0.97437614 1.0421423 1.1127082 1.186138 1.2625105 1.3418719 1.4242283 1.5095748 1.5978574 1.6889513 1.7827021 1.8788425 1.9770532 2.0769193 2.1779735 2.2796512 2.3813694 2.4824371 2.58223 2.6800375 2.7752316 2.8672025 2.955394 3.0393198 3.1185532 3.1927242 3.2615469 3.324792 3.3822536 3.4337986 3.4793234 3.518739 3.5519974 3.5790524 3.5998864 3.6144803 3.6228247 3.625 3.6249533 3.6227322 3.6172905 3.6087792 3.5973494 3.5831535 3.566342 3.5470653 3.525471 3.5017045 3.4759085 3.4482226 3.418782 3.3877184 3.3551598 3.3212287 3.2860441 3.2497203 3.2123666 3.174088 3.1349843 3.095151 3.0546792 3.013655 2.9721603 2.9302726 2.8880649 2.845606 2.8029613 2.760192 2.7173545 2.6745028 2.6316874 2.5889544 2.5463479 2.5039077 2.4616716 2.4196742 2.3779476 2.3365207 2.2954206 2.2546725 2.2142985 2.174319 2.1347525 2.0956159 2.0569239 2.0186899 1.9809256 1.9436412 1.9068459 1.8705474 1.8347522 1.7994655 1.7646921 1.730435 1.696697 1.6634796 1.6307839 1.59861 1.5669575 1.5358253 1.5052116 1.4751145 1.4455311 1.4164585 1.3878931 1.3598311 1.3322682 1.3052001 1.2786218 1.2525284 1.2269148 1.2017754 1.1771046 1.1528966 1.1291456 1.1058456 1.0829904 1.0605738 1.0385896 1.0170313 0.9958928 0.9751676 0.9548492 0.93493116 0.9154071 0.8962707 0.8775153 0.85913473 0.84112257 0.8234724 0.80617803 0.78923315 0.7726316 0.7563672 0.74043393 0.7248257 0.70953655 0.69456065 0.67989206 0.66552514 0.65145415 0.6376735 0.6241776 0.610961 0.59801835 0.5853444 0.5729338 0.5607814 0.5488823 0.5372314 0.5258237 0.5146546 0.50371915 0.49301276 0.48253086 0.47226888 0.46222246 0.45238718 0.4427588 0.4333331 0.42410594 0.41507334 0.40623122 0.39757577 0.3891031 0.3808095 0.3726912 0.3647447 0.35696635 0.34935272 0.34190035 0.33460596 0.32746622 0.3204779 0.3136379 0.3069431 0.30039042 0.29397696 0.28769976 0.281556 0.27554286 0.26965758 0.26389754 0.25826004 0.25274253 0.24734248 0.24205743 0.23688494 0.23182262 0.22686818 0.22201933 0.21727383 0.21262948 0.20808418 0.20363581 0.1992823 0.19502169 0.19085196 0.1867712 0.18277754 0.17886911 0.17504412 0.17130077 0.16763736 0.16405216 0.16054353 0.15710983 0.15374948 0.1504609 0.14724258 0.144093 0.14101073 0.13799432 0.13504235 0.1321535 0.12932636 0.12655966 0.12385208 0.121202394 0.11860934 0.11607172 0.113588355 0.11115809 0.10877977 0.106452316 0.10417463 0.10194564 0.099764325 0.09762965 0.095540635 0.09349629 0.09149567 0.089537844 0.08762188 0.085746914 0.083912045 0.082116425 0.08035921 0.0786396 0.07695676 0.075309925 0.07369832 0.072121195 0.07057781 0.06906744 0.06758939 0.066142954 0.06472747 0.06334227 0.06198671 0.060660154 0.059361976 0.05809158 0.056848362 0.05563175 0.05444117 0.053276062 0.052135885 0.05102011

</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="3.625" PeakHeight="253.834" Num="5" zHalfNm="234.809" Error="1.324">
-49.51 0.679 -0.879 0.615 -0.239
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="-651.04724" C="0.14000899" Error="0.0127"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6570.0" A="5.464798E10" B="-1.6781034E7" C="1288.2728" Error="0.0127"/>
<QuasiParabolic ID="4" StartDistance="6570.0" EndDistance="6573.0" A="-3.45012503E11" B="1.04881216E8" C="-7970.6504" Error="0.00454"/>
<QuasiParabolic ID="5" StartDistance="6573.0" EndDistance="6579.0" A="7.4946781E12" B="-2.28054118E9" C="173485.48" Error="0.0189"/>
<QuasiParabolic ID="6" StartDistance="6579.0" EndDistance="6582.0" A="6.0596248E12" B="-1.84428851E9" C="140330.55" Error="0.00527"/>
<QuasiParabolic ID="7" StartDistance="6582.0" EndDistance="6588.0" A="1.07916034E13" B="-3.28214272E9" C="249556.78" Error="0.00159"/>
<QuasiParabolic ID="8" StartDistance="6588.0" EndDistance="6601.0" A="2.13359169E13" B="-6.4832092E9" C="492503.53" Error="0.0197"/>
<QuasiParabolic ID="9" StartDistance="6601.0" EndDistance="6611.0" A="1.09556909E13" B="-3.33816294E9" C="254278.55" Error="0.0178"/>
<QuasiParabolic ID="10" StartDistance="6611.0" EndDistance="6623.834" A="-4.0570106E13" B="1.22497352E10" C="-924657.94" Error="0.00715"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="253.834" PeakDensity="163035.05" PeakScaleHeight="14.444" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
