<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 01:25:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.09 (099) 01:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090125001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.850" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.901" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.225" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.225" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="4.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="262.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.225" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.225" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="226.254" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="206.955" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.097" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.573" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.651" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.697" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.230" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.860" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="98">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 212.500 213.333 214.167 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 216.250 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 227.500 227.500 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 232.500 237.500 237.500 237.500 237.500 240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 252.500 252.500 252.500 255.000 257.500 260.000 262.500 266.522 272.406 281.832 299.379
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 57 0 0 0 0 0 66 66 69 72 72 72 72 72 72 0 0 72 72 75 72 75 54 54 63 57 0 0 66 66 84 84 99 99 99 99 93 93 90 96 84 84 108 105 99 99 99 99 87 84 87 84 84 87 87 87 84 78 72 72 69 66 90 90 96 99 108 108 96 96 72 69 105 102 90 87 90 96 99 96 99 93 99 93 99 84 69 72 72 72 93 90 105 105 99 96
</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 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="373">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 226.254 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0
</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 0.3538169 0.35312194 0.35206616 0.35058403 0.34861574 0.3462502 0.3433677 0.34006724 0.336247 0.33195284 0.32717335 0.32179055 0.31589526 0.3093662 0.30218917 0.2942784 0.28568256 0.27623004 0.26589635 0.25450236 0.24202472 0.22809964 0.21270788 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.20614286 0.21257143 0.219 0.22542857 0.23185714 0.23828572 0.24471429 0.25114286 0.25757143 0.264 0.27042857 0.27685714 0.2832857 0.28971428 0.29614285 0.30257142 0.309 0.31542858 0.32185715 0.32828572 0.3347143 0.34114286 0.34757143 0.354 0.40572032 0.45689085 0.50894004 0.5627521 0.61898327 0.67820054 0.74095684 0.8077767 0.87924385 0.95595527 1.0385606 1.1277224 1.2241422 1.3285342 1.4415541 1.5637507 1.6954212 1.8365769 1.9867227 2.1447654 2.3090644 2.4773762 2.647212 2.816026 2.9814687 3.1415598 3.2948298 3.4402187 3.5770795 3.7051208 3.8241823 3.9343653 4.0357437 4.128572 4.2130685 4.2894464 4.3579636 4.418834 4.4722376 4.5183816 4.5574155 4.5894732 4.6146607 4.63307 4.6447654 4.6497855 4.65 4.6488423 4.643751 4.634772 4.6220894 4.6058884 4.5863533 4.5636673 4.538012 4.5095663 4.478506 4.445003 4.409225 4.371335 4.3314924 4.2898498 4.246556 4.201753 4.155579 4.1081653 4.0596375 4.010117 3.9597182 3.9085505 3.856718 3.8043194 3.751448 3.6981924 3.6446354 3.5908563 3.5369284 3.4829214 3.4289 3.3749254 3.321054 3.267339 3.2138293 3.160571 3.1076062 3.0549738 3.0027103 2.9508486 2.8994188 2.8484492 2.7979643 2.7479877 2.6985397 2.649639 2.601302 2.5535438 2.506377 2.4598134 2.4138625 2.368533 2.3238313 2.2797637 2.2363346 2.1935475 2.1514049 2.109908 2.069058 2.028854 1.9892954 1.9503804 1.9121068 1.8744715 1.8374711 1.8011016 1.7653586 1.730237 1.6957319 1.6618373 1.6285477 1.5958565 1.5637575 1.532244 1.5013089 1.4709454 1.441146 1.4119036 1.3832107 1.3550595 1.3274425 1.300352 1.2737802 1.2477194 1.2221617 1.1970992 1.1725242 1.1484288 1.1248052 1.1016457 1.0789424 1.0566877 1.0348738 1.0134933 0.9925386 0.9720021 0.9518764 0.9321543 0.9128284 0.8938916 0.87533665 0.85715663 0.8393446 0.82189375 0.8047972 0.7880483 0.7716406 0.7555675 0.7398226 0.7243997 0.7092925 0.69449496 0.680001 0.6658048 0.6519005 0.6382823 0.6249447 0.61188203 0.59908897 0.58656013 0.5742903 0.56227416 0.5505068 0.53898317 0.5276984 0.5166477 0.5058263 0.49522957 0.48485303 0.4746922 0.46474266 0.45500016 0.4454605 0.43611947 0.42697307 0.41801733 0.40924832 0.40066224 0.3922553 0.38402387 0.3759643 0.3680731 0.36034676 0.35278192 0.3453752 0.3381234 0.33102325 0.32407168 0.31726554 0.3106019 0.3040777 0.29769018 0.29143643 0.28531367 0.2793192 0.27345034 0.2677045 0.2620791 0.25657162 0.2511796 0.2459007 0.2407325 0.23567273 0.2307191 0.2258694 0.22112148 0.21647319 0.21192247 0.20746726 0.20310558 0.19883548 0.19465503 0.19056237 0.18655564 0.18263307 0.17879288 0.17503335 0.17135279 0.16774954 0.164222 0.16076857 0.1573877 0.15407787 0.1508376 0.14766541 0.14455988 0.14151962 0.13854326 0.13562946 0.1327769 0.1299843 0.1272504 0.124573976 0.12195381 0.11938873 0.11687757 0.114419214 0.112012535 0.10965646 0.107349925 0.105091885 0.10288132 0.10071725 0.098598674 0.09652465 0.09449424 0.09250652 0.09056061 0.08865562 0.08679069 0.08496498 0.08317767 0.08142795 0.07971502 0.07803812 0.07639649 0.07478938 0.07321608 0.07167587 0.070168056 0.068691954 0.0672469 0.065832235 0.06444733 0.063091554 0.0617643 0.06046496 0.05919295 0.0579477 0.05672864 0.055535223 0.054366913 0.053223178 0.0521035 0.051007375

</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="4.65" PeakHeight="226.254" Num="5" zHalfNm="206.955" Error="0.187">
-49.535 5.365 -3.453 1.504 -0.135
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="851.56104" C="-0.08929906" Error="0.0106"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6528.0" A="-3.857941E12" B="1.18190515E9" C="-90521.016" Error="0.0192"/>
<QuasiParabolic ID="4" StartDistance="6528.0" EndDistance="6539.0" A="2.49770918E11" B="-7.6585064E7" C="5870.6953" Error="0.0396"/>
<QuasiParabolic ID="5" StartDistance="6539.0" EndDistance="6548.0" A="-1.13521156E11" B="3.4530412E7" C="-2625.6714" Error="0.00951"/>
<QuasiParabolic ID="6" StartDistance="6548.0" EndDistance="6553.0" A="9.3757794E12" B="-2.86385101E9" C="218692.39" Error="0.0355"/>
<QuasiParabolic ID="7" StartDistance="6553.0" EndDistance="6557.0" A="8.2771323E12" B="-2.52853965E9" C="193107.83" Error="0.00463"/>
<QuasiParabolic ID="8" StartDistance="6557.0" EndDistance="6564.0" A="2.24971876E13" B="-6.8659057E9" C="523851.03" Error="0.0226"/>
<QuasiParabolic ID="9" StartDistance="6564.0" EndDistance="6569.0" A="6.7474939E13" B="-2.05702779E10" C="1567755.1" Error="0.00516"/>
<QuasiParabolic ID="10" StartDistance="6569.0" EndDistance="6578.0" A="4.8948438E13" B="-1.49296937E10" C="1138421.5" Error="0.0271"/>
<QuasiParabolic ID="11" StartDistance="6578.0" EndDistance="6596.254" A="-5.6128243E13" B="1.70182175E10" C="-1289969.5" Error="0.0124"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="226.254" PeakDensity="268269.22" PeakScaleHeight="14.697" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
