<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 06:55:00.000"
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) 06:55:00</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">
FF202609904090655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.471" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.190" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="255.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="255.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="305.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="270.107" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.051" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.030" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.802" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.448" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.202" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="32.990" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.850" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="56">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
255.000 255.000 255.000 255.000 255.000 257.500 257.500 257.500 258.750 260.000 260.000 260.000 260.000 260.000 262.500 262.500 262.500 265.000 265.000 265.625 266.250 266.875 267.500 267.500 268.750 270.000 270.000 272.500 272.500 272.500 275.000 275.000 277.500 277.500 277.500 280.000 280.000 282.500 282.500 285.000 287.500 290.000 290.000 292.500 292.500 295.000 295.000 300.000 302.500 305.000 309.517 315.241 322.732 332.957 347.746 371.031
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 84 75 0 72 72 72 72 0 72 72 72 72 69 69 72 48 48 60 0 0 0 72 72 0 84 96 93 93 96 96 93 90 93 90 93 90 90 69 69 93 87 84 81 84 84 87 84 81 81 78 78 0 0 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 4.6875 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="478">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.83333 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 177.66667 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 211.5 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 270.107 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0
</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 0.35306174 0.35235173 0.35142186 0.35027584 0.34891838 0.3472823 0.34552038 0.3434953 0.34128824 0.33877015 0.3360937 0.33313656 0.32991865 0.32646134 0.32272556 0.31874058 0.31447914 0.30992344 0.30501232 0.29980785 0.29430088 0.288361 0.2820187 0.27533066 0.26815805 0.26053688 0.25234902 0.24358158 0.23417579 0.22406323 0.21320657 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 0.2 0.2 0.2 0.20151724 0.20606896 0.21062069 0.21517241 0.21972413 0.22427586 0.22882758 0.2333793 0.23793103 0.24248275 0.24703449 0.2515862 0.25613794 0.26068965 0.26524138 0.2697931 0.27434483 0.27889654 0.28344828 0.288 0.29255173 0.29710343 0.30165517 0.30620688 0.31075862 0.31531036 0.31986207 0.3244138 0.3289655 0.33351725 0.33806896 0.3426207 0.3471724 0.35172415 0.354 0.3681445 0.3987786 0.43240234 0.46876398 0.5075795 0.5486054 0.5916565 0.63660985 0.6834373 0.7321455 0.7827958 0.8354758 0.89031196 0.9474637 1.0070838 1.0693465 1.1344503 1.202588 1.2739279 1.348676 1.4269631 1.5089236 1.5945733 1.6839198 1.7768147 1.8729789 1.9719676 2.0732212 2.1760068 2.279464 2.3826878 2.4847863 2.5848482 2.6821551 2.7760708 2.8660958 2.9518824 3.0332181 3.1099946 3.182158 3.2497532 3.3128417 3.3715062 3.4258919 3.4761033 3.522264 3.5645077 3.6029563 3.637701 3.6688652 3.6965344 3.7207904 3.7417047 3.759349 3.773772 3.7850163 3.793118 3.7981024 3.7999823 3.8 3.7992053 3.796468 3.7918437 3.7853994 3.7772026 3.7673216 3.7558234 3.7427757 3.7282455 3.712299 3.695002 3.676419 3.656614 3.6356497 3.6135871 3.590487 3.566408 3.5414078 3.5155425 3.4888666 3.4614332 3.433294 3.4044993 3.375097 3.3451345 3.314657 3.2837079 3.2523298 3.2205634 3.1884475 3.15602 3.123317 3.0903728 3.057221 3.0238934 2.9904199 2.95683 2.9231515 2.8894105 2.8556325 2.8218412 2.7880595 2.754309 2.7206104 2.6869829 2.6534448 2.620014 2.5867062 2.5535374 2.5205219 2.4876738 2.4550052 2.4225287 2.3902555 2.358196 2.3263602 2.294757 2.2633948 2.2322814 2.2014246 2.1708302 2.140505 2.1104543 2.080683 2.051196 2.0219972 1.9930905 1.9644791 1.9361658 1.9081533 1.8804436 1.8530385 1.8259398 1.7991484 1.7726655 1.7464914 1.7206268 1.6950717 1.669826 1.6448896 1.6202618 1.5959419 1.5719291 1.5482224 1.5248207 1.5017225 1.4789262 1.4564304 1.4342333 1.4123331 1.3907278 1.3694153 1.3483936 1.3276603 1.3072133 1.2870501 1.2671683 1.2475654 1.2282389 1.2091862 1.1904045 1.1718913 1.153644 1.1356596 1.1179353 1.1004686 1.0832565 1.0662961 1.0495847 1.0331194 1.0168974 1.0009158 0.9851715 0.96966195 0.95438415 0.9393352 0.9245123 0.9099126 0.8955332 0.8813713 0.86742413 0.8536888 0.8401625 0.82684255 0.81372607 0.8008104 0.78809285 0.7755706 0.76324105 0.7511015 0.73914933 0.7273819 0.71579665 0.704391 0.6931623 0.6821082 0.67122614 0.6605136 0.64996815 0.63958734 0.62936884 0.61931026 0.6094093 0.5996635 0.5900707 0.58062863 0.571335 0.5621876 0.55318433 0.54432297 0.5356014 0.5270175 0.51856923 0.5102545 0.5020713 0.4940177 0.48609164 0.4782912 0.47061452 0.46305963 0.4556247 0.4483079 0.44110736 0.43402135 0.4270481 0.4201858 0.4134328 0.4067874 0.4002479 0.3938127 0.38748014 0.38124862 0.3751166 0.36908248 0.36314476 0.35730195 0.35155252 0.34589502 0.34032804 0.3348501 0.32945985 0.3241559 0.31893688 0.31380144 0.3087483 0.30377612 0.29888365 0.29406962 0.2893328 0.28467196 0.28008586 0.27557337 0.27113333 0.26676452 0.2624659 0.25823626 0.25407457 0.24997973 0.24595068 0.24198636 0.23808576 0.23424786 0.23047164 0.22675614 0.2231004 0.21950342 0.21596432 0.21248212 0.20905596 0.20568492 0.20236811 0.1991047 0.1958938 0.19273457 0.1896262 0.18656787 0.18355878 0.18059814 0.17768519 0.17481913 0.17199923 0.16922475 0.16649497 0.16380915 0.16116661 0.15856664 0.15600856 0.15349169 0.15101539 0.14857897 0.14618184 0.14382334 0.14150284 0.13921975 0.13697346 0.13476337 0.13258892 0.13044953 0.12834463 0.12627365 0.12423607 0.12223134 0.120258935 0.11831834 0.11640903 0.11453052 0.1126823 0.11086389 0.109074794 0.107314564 0.10558272 0.10387881 0.10220238 0.10055299 0.09893021 0.0973336 0.09576275 0.09421724 0.09269667 0.09120062 0.089728706 0.088280536 0.08685573 0.08545391 0.08407471 0.08271776 0.08138271 0.08006919 0.07877687 0.0775054 0.07625445 0.07502368 0.07381277 0.0726214 0.07144925 0.07029602 0.06916139 0.06804508 0.066946775 0.0658662 0.064803064 0.06375708 0.06272797 0.06171548 0.060719322 0.059739243 0.05877498 0.05782628 0.056892887 0.05597456 0.055071056 0.05418213 0.053307552 0.052447088 0.051600512 0.050767597

</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="3.8" PeakHeight="270.107" Num="5" zHalfNm="245.051" Error="0.777">
-62.692 6.836 -4.225 2.021 -0.547
</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="6513.833" A="-1.32737196E11" B="4.0968268E7" C="-3161.0066" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6513.833" EndDistance="6547.667" A="0.0" B="-1401.5403" C="0.25519904" Error="0.0287"/>
<QuasiParabolic ID="3" StartDistance="6547.667" EndDistance="6576.0" A="6.0819649E10" B="-1.8639378E7" C="1428.1265" Error="0.0287"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6580.0" A="-2.46015721E11" B="7.4680384E7" C="-5667.354" Error="0.00454"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6584.0" A="6.896833E12" B="-2.09639821E9" C="159308.22" Error="0.021"/>
<QuasiParabolic ID="6" StartDistance="6584.0" EndDistance="6586.0" A="2.90845937E12" B="-8.848631E8" C="67302.22" Error="0.00146"/>
<QuasiParabolic ID="7" StartDistance="6586.0" EndDistance="6598.0" A="7.718796E12" B="-2.34563968E9" C="178202.34" Error="0.0345"/>
<QuasiParabolic ID="8" StartDistance="6598.0" EndDistance="6616.0" A="2.29368324E13" B="-6.9585638E9" C="527772.25" Error="0.0222"/>
<QuasiParabolic ID="9" StartDistance="6616.0" EndDistance="6640.107" A="-2.26127323E13" B="6.8109542E9" C="-512850.34" Error="0.00984"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="101.5" Depth="0.154"/>
<TopsideChapman PeakHeight="270.107" PeakDensity="179156.33" PeakScaleHeight="19.202" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
