<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-09 -129 23:55:00.000"
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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.09 (129) 23:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612905092355001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.418" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.526" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.575" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="292.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="272.793" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="242.991" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.954" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.431" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.155" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.200" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.290" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.140" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
247.500 247.500 247.500 247.500 247.500 250.000 250.000 250.000 252.500 252.500 252.500 252.500 252.500 255.000 257.500 257.500 260.000 260.000 260.000 260.000 260.000 262.500 265.000 265.000 267.500 267.500 270.000 272.500 272.500 272.500 275.000 277.500 277.500 280.000 282.500 285.000 287.500 290.000 290.000 292.500 297.500 302.500 306.000 309.500 313.000 316.500 320.000 327.500 337.500 340.000 360.000 365.000 375.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 69 72 84 81 93 93 96 93 93 93 90 93 105 99 102 90 63 66 102 102 78 75 78 75 75 72 66 69 78 81 69 66 54 0 0 0 75 75 75 72 48 0 0 0 0 87 84 84 90 87 81 78
</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 -10.9375 -1.5625 -10.9375 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="551">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.08333 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.16667 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.25 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 272.793 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0
</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 0.35298675 0.3521277 0.3511249 0.34983355 0.34833378 0.34655926 0.3445913 0.34229675 0.3398302 0.33706498 0.33401984 0.33071515 0.327109 0.32322994 0.31904808 0.31454307 0.3097052 0.30453598 0.29904887 0.29310012 0.2867813 0.2800439 0.2727352 0.26502842 0.25670934 0.24776544 0.23820302 0.22786881 0.21668318 0.20459439 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 0.204 0.2088 0.2136 0.2184 0.2232 0.228 0.2328 0.2376 0.2424 0.2472 0.252 0.2568 0.2616 0.2664 0.2712 0.276 0.2808 0.2856 0.2904 0.2952 0.3 0.3048 0.3096 0.3144 0.3192 0.324 0.3288 0.3336 0.3384 0.3432 0.348 0.3528 0.354 0.369059 0.3922393 0.41955256 0.45147246 0.48806754 0.5288664 0.57298446 0.61947596 0.66757476 0.71682656 0.767032 0.8181318 0.87022305 0.9234188 0.9779156 1.0339099 1.0916573 1.1513919 1.213401 1.2779917 1.3455167 1.4163383 1.4908487 1.5695149 1.6527689 1.7411252 1.8350128 1.9348389 2.0408185 2.1529024 2.2706273 2.392979 2.5183227 2.644547 2.7693114 2.8904352 3.0062149 3.115494 3.217682 3.312666 3.4006126 3.48185 3.5568175 3.6259496 3.6896915 3.7484617 3.802644 3.8525703 3.898562 3.9408882 3.9797819 4.01546 4.0481057 4.0778894 4.10495 4.1294155 4.1513925 4.1709824 4.188263 4.203307 4.2161775 4.2269244 4.2355876 4.242201 4.246791 4.249373 4.25 4.249967 4.248889 4.246319 4.2423 4.236874 4.2300844 4.2219734 4.212585 4.201961 4.190145 4.177179 4.1631055 4.1479664 4.1318026 4.114656 4.096566 4.077574 4.0577173 4.037036 4.015568 3.99335 3.970419 3.9468105 3.9225597 3.897701 3.8722677 3.8462925 3.8198073 3.792843 3.76543 3.7375975 3.709374 3.6807873 3.6518645 3.6226313 3.5931134 3.5633352 3.5333202 3.5030913 3.472671 3.4420803 3.41134 3.38047 3.3494895 3.3184166 3.2872696 3.2560654 3.2248201 3.1935499 3.1622696 3.130994 3.0997367 3.0685112 3.0373304 3.006206 2.9751499 2.944173 2.9132864 2.8824997 2.8518226 2.821264 2.7908332 2.7605379 2.7303858 2.7003846 2.6705413 2.6408625 2.6113539 2.582022 2.552872 2.5239093 2.4951384 2.466564 2.4381905 2.4100215 2.382061 2.3543122 2.3267782 2.2994618 2.272366 2.2454932 2.2188451 2.192424 2.1662319 2.14027 2.1145399 2.0890427 2.0637796 2.0387514 2.0139587 1.9894023 1.9650825 1.9409997 1.9171541 1.8935455 1.870174 1.8470395 1.8241416 1.8014798 1.7790538 1.756863 1.7349066 1.7131839 1.691694 1.6704363 1.6494094 1.6286124 1.6080444 1.587704 1.56759 1.5477012 1.5280364 1.508594 1.4893727 1.470371 1.4515874 1.4330205 1.4146686 1.3965302 1.3786036 1.3608872 1.3433794 1.3260784 1.3089826 1.2920903 1.2753996 1.2589089 1.2426163 1.2265202 1.2106186 1.1949098 1.1793921 1.1640636 1.1489224 1.1339668 1.119195 1.1046051 1.0901953 1.0759639 1.0619088 1.0480285 1.0343208 1.0207844 1.0074171 0.9942173 0.98118305 0.9683127 0.95560443 0.9430564 0.930667 0.91843426 0.90635663 0.8944323 0.88265955 0.87103665 0.85956186 0.8482336 0.8370501 0.8260097 0.81511074 0.80435157 0.7937306 0.78324616 0.7728967 0.76268053 0.7525962 0.742642 0.73281646 0.72311795 0.7135451 0.70409626 0.69477 0.68556476 0.6764791 0.6675116 0.65866077 0.64992523 0.6413035 0.6327942 0.62439597 0.6161074 0.6079271 0.5998538 0.5918861 0.58402276 0.57626235 0.5686037 0.5610455 0.5535865 0.5462253 0.5389609 0.5317919 0.5247172 0.51773554 0.5108458 0.5040467 0.49733716 0.49071604 0.4841822 0.47773457 0.47137195 0.4650933 0.4588976 0.45278367 0.44675055 0.44079715 0.43492246 0.42912546 0.42340517 0.41776055 0.41219065 0.4066945 0.40127116 0.39591965 0.39063907 0.3854285 0.380287 0.37521365 0.37020764 0.36526802 0.36039394 0.3555846 0.35083908 0.3461566 0.34153628 0.33697736 0.332479 0.32804045 0.32366085 0.3193395 0.3150756 0.31086844 0.3067172 0.3026212 0.2985797 0.29459196 0.29065728 0.28677502 0.2829444 0.27916482 0.27543554 0.27175593 0.26812533 0.26454312 0.2610086 0.25752118 0.25408024 0.25068516 0.24733533 0.24403015 0.24076903 0.23755139 0.23437665 0.23124424 0.22815362 0.2251042 0.22209547 0.21912687 0.21619786 0.21330795 0.21045658 0.20764327 0.2048675 0.20212877 0.19942659 0.19676048 0.19412996 0.19153455 0.18897378 0.1864472 0.18395437 0.18149482 0.17906809 0.17667378 0.17431144 0.17198066 0.169681 0.16741206 0.16517343 0.16296469 0.16078545 0.15863533 0.15651393 0.15442088 0.15235579 0.15031828 0.14830801 0.14632459 0.14436768 0.1424369 0.14053194 0.13865243 0.13679804 0.13496843 0.13316329 0.13138226 0.12962502 0.12789129 0.12618072 0.124493025 0.12282788 0.121185 0.11956408 0.11796483 0.11638695 0.11483017 0.11329421 0.11177877 0.1102836 0.10880841 0.10735296 0.105916955 0.10450016 0.1031023 0.101723135 0.100362405 0.09901988 0.0976953 0.09638843 0.09509904 0.09382689 0.09257176 0.091333404 0.090111606 0.088906154 0.08771682 0.08654339 0.08538566 0.0842434 0.08311643 0.082004525 0.080907494 0.079825126 0.07875724 0.07770364 0.07666413 0.07563852 0.074626625 0.07362827 0.072643265 0.07167144 0.0707126 0.0697666 0.06883325 0.06791238 0.06700383 0.06610743 0.06522302 0.06435044 0.063489534 0.062640145 0.06180212 0.0609753 0.060159538 0.059354693 0.05856061 0.05777715 0.057004172 0.056241535 0.055489097 0.054746725 0.054014284 0.05329164 0.052578665 0.051875226 0.0511812 0.050496455

</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="4.25" PeakHeight="272.793" Num="5" zHalfNm="242.991" Error="2.386">
-74.348 13.603 -8.716 4.582 -1.664
</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="6512.083" A="-1.47549225E11" B="4.5539884E7" C="-3513.7546" Error="0.00163"/>
<QuasiParabolic ID="2" StartDistance="6512.083" EndDistance="6544.167" A="0.0" B="34.830692" C="0.0346776" Error="6.56E-4"/>
<QuasiParabolic ID="3" StartDistance="6544.167" EndDistance="6545.0" A="-2.76186346E12" B="8.438896E8" C="-64462.742" Error="1.82E-10"/>
<QuasiParabolic ID="4" StartDistance="6545.0" EndDistance="6569.0" A="6.1950153E10" B="-1.9002252E7" C="1457.1836" Error="0.0198"/>
<QuasiParabolic ID="5" StartDistance="6569.0" EndDistance="6575.0" A="-3.41048115E10" B="1.0242675E7" C="-768.79663" Error="0.00127"/>
<QuasiParabolic ID="6" StartDistance="6575.0" EndDistance="6577.0" A="4.6044854E12" B="-1.40073536E9" C="106529.91" Error="0.0139"/>
<QuasiParabolic ID="7" StartDistance="6577.0" EndDistance="6589.0" A="6.0499648E12" B="-1.8402912E9" C="139946.05" Error="0.00725"/>
<QuasiParabolic ID="8" StartDistance="6589.0" EndDistance="6598.0" A="1.02376009E13" B="-3.11139046E9" C="236402.2" Error="0.0117"/>
<QuasiParabolic ID="9" StartDistance="6598.0" EndDistance="6613.0" A="3.5235161E13" B="-1.06887045E10" C="810615.2" Error="0.0142"/>
<QuasiParabolic ID="10" StartDistance="6613.0" EndDistance="6624.0" A="-3.49218129E13" B="1.05291919E10" C="-793641.3" Error="0.00787"/>
<QuasiParabolic ID="11" StartDistance="6624.0" EndDistance="6642.793" A="-1.73662357E13" B="5.2285947E9" C="-393535.88" Error="0.00353"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="96.25" Depth="0.154"/>
<TopsideChapman PeakHeight="272.793" PeakDensity="224100.5" PeakScaleHeight="23.2" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
