<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-01 -121 01:10:00.000"
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" >
2026.05.01 (121) 01:10:00</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">
FF202612105010110001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.723" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.219" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.139" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="240.716" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="216.491" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.533" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.389" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.068" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.876" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.650" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="60">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 230.000 230.000 230.000 232.500 232.500 232.500 232.500 235.000 237.500 237.500 237.500 240.000 240.000 240.000 242.500 242.500 245.000 245.000 247.500 250.000 250.000 252.500 254.405 256.561 259.019 261.848 265.139 269.015 273.648 279.283 286.285 295.219 307.013 323.304 347.266 385.991
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 93 96 96 93 90 90 93 93 96 96 93 96 87 87 87 84 75 72 69 66 66 69 69 66 69 66 90 93 93 93 108 96 93 93 87 90 87 90 90 90 87 84 84 90 90 90 93 93 81 78 54 54 63 60 57 57 84 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 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="456">
<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 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 240.716 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0
</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 0.37516406 0.4075391 0.44466293 0.48606062 0.5309719 0.57858956 0.6283469 0.67989373 0.7331385 0.78811425 0.84499186 0.9039824 0.96540225 1.0295916 1.0970027 1.1681026 1.2434796 1.3238175 1.4099033 1.5027465 1.6034374 1.7133527 1.834042 1.9670826 2.1140394 2.2756872 2.4511974 2.6370797 2.8270266 3.0132546 3.1891458 3.3508592 3.497159 3.6285362 3.7462215 3.8516707 3.9463072 4.0313716 4.1079845 4.177014 4.239267 4.2953587 4.345849 4.39117 4.4317093 4.467792 4.4996767 4.527596 4.551733 4.57225 4.5892754 4.6029077 4.613235 4.6203136 4.6241846 4.625 4.624898 4.62294 4.6185555 4.61183 4.602851 4.5917044 4.578477 4.563256 4.5461264 4.5271745 4.5064845 4.4841404 4.460223 4.434815 4.4079943 4.3798394 4.3504267 4.3198295 4.288121 4.255372 4.2216506 4.1870236 4.1515555 4.1153092 4.078345 4.0407214 4.0024943 3.9637191 3.9244478 3.8847303 3.8446157 3.80415 3.763378 3.722342 3.6810832 3.6396406 3.5980508 3.5563502 3.5145721 3.4727488 3.430911 3.3890877 3.3473063 3.3055933 3.263973 3.2224693 3.1811037 3.1398976 3.09887 3.0580397 3.0174236 2.9770384 2.936899 2.8970194 2.857413 2.818092 2.779068 2.7403512 2.7019515 2.663878 2.6261384 2.588741 2.5516922 2.5149984 2.4786649 2.442697 2.407099 2.371875 2.3370285 2.3025622 2.2684789 2.2347803 2.2014687 2.1685448 2.13601 2.1038647 2.0721092 2.0407436 2.0097675 1.9791803 1.9489813 1.9191693 1.8897431 1.8607012 1.8320419 1.8037633 1.7758634 1.74834 1.7211907 1.6944131 1.6680045 1.6419622 1.6162833 1.590965 1.5660042 1.5413977 1.5171424 1.4932351 1.4696723 1.4464507 1.4235668 1.4010173 1.3787985 1.3569069 1.335339 1.3140911 1.2931595 1.2725407 1.252231 1.2322266 1.212524 1.1931195 1.1740094 1.15519 1.1366576 1.1184086 1.1004393 1.0827461 1.0653254 1.0481734 1.0312867 1.0146618 0.998295 0.98218274 0.96632165 0.9507082 0.9353389 0.92021036 0.90531915 0.89066195 0.8762354 0.8620363 0.84806114 0.8343069 0.8207702 0.807448 0.7943371 0.78143436 0.7687368 0.7562412 0.74394476 0.73184437 0.7199371 0.70822006 0.69669044 0.68534535 0.67418194 0.6631976 0.6523894 0.6417548 0.6312911 0.62099564 0.61086583 0.60089916 0.59109306 0.58144504 0.5719527 0.5626136 0.55342525 0.54438543 0.5354918 0.526742 0.5181338 0.509665 0.50133336 0.4931368 0.4850731 0.4771402 0.469336 0.4616585 0.45410568 0.44667554 0.43936616 0.43217558 0.42510194 0.41814336 0.41129804 0.40456408 0.3979398 0.39142337 0.3850131 0.3787073 0.37250426 0.36640233 0.3603999 0.35449538 0.34868717 0.34297374 0.33735353 0.33182508 0.3263869 0.3210375 0.31577548 0.31059942 0.3055079 0.3004996 0.29557315 0.29072723 0.2859605 0.28127173 0.27665964 0.27212298 0.2676605 0.26327103 0.2589534 0.25470638 0.2505289 0.24641977 0.24237789 0.23840219 0.23449157 0.23064497 0.22686137 0.22313972 0.21947902 0.2158783 0.21233653 0.20885278 0.20542613 0.20205559 0.19874029 0.19547932 0.19227177 0.18911679 0.18601353 0.18296112 0.17995875 0.17700559 0.17410085 0.17124371 0.16843343 0.1656692 0.16295032 0.16027601 0.15764555 0.15505823 0.15251334 0.15001018 0.14754808 0.14512634 0.14274435 0.14040141 0.1380969 0.1358302 0.13360067 0.13140772 0.12925075 0.12712915 0.12504238 0.122989826 0.12097096 0.118985206 0.117032036 0.11511091 0.11322131 0.11136272 0.10953462 0.10773652 0.105967924 0.104228355 0.10251732 0.10083438 0.099179044 0.097550884 0.09594944 0.09437428 0.092824966 0.091301076 0.089802206 0.08832793 0.08687785 0.08545157 0.0840487 0.08266886 0.081311665 0.07997675 0.078663744 0.07737229 0.07610203 0.07485262 0.073623724 0.072414994 0.07122611 0.07005674 0.06890656 0.067775264 0.06666254 0.06556808 0.06449159 0.06343277 0.06239133 0.061366983 0.060359456 0.059368465 0.058393747 0.057435025 0.056492046 0.055564545 0.05465227 0.053754974 0.05287241 0.05200433 0.0511505 0.050310694

</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="4.625" PeakHeight="240.716" Num="5" zHalfNm="216.491" Error="2.339">
-61.286 11.133 -8.433 4.373 -1.253
</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="1135.8938" C="-0.13460341" Error="0.0164"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6554.0" A="4.6451278E10" B="-1.4343151E7" C="1107.1802" Error="0.0164"/>
<QuasiParabolic ID="4" StartDistance="6554.0" EndDistance="6561.0" A="7.0477074E12" B="-2.1508265E9" C="164097.98" Error="0.017"/>
<QuasiParabolic ID="5" StartDistance="6561.0" EndDistance="6569.0" A="7.8654965E12" B="-2.40011443E9" C="183095.69" Error="0.0148"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6576.0" A="2.42731733E13" B="-7.3956014E9" C="563327.6" Error="0.0109"/>
<QuasiParabolic ID="7" StartDistance="6576.0" EndDistance="6586.0" A="8.3437105E13" B="-2.53894984E10" C="1931476.6" Error="0.0167"/>
<QuasiParabolic ID="8" StartDistance="6586.0" EndDistance="6594.0" A="-7.7973638E13" B="2.36268216E10" C="-1789774.5" Error="0.0116"/>
<QuasiParabolic ID="9" StartDistance="6594.0" EndDistance="6610.716" A="-3.00576345E13" B="9.0936095E9" C="-687771.7" Error="0.00564"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="240.716" PeakDensity="265392.38" PeakScaleHeight="18.876" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
