<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 22:50:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 85% PACIFIC flags: Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.07 (127) 22:50:00</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">
FF202612705072250001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.693" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.403" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="3.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.634" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="230.605" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="202.648" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.549" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.604" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.650" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.099" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.700" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.520" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="77">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 200.000 200.000 200.000 200.833 201.667 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 210.000 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 215.000 217.500 217.500 217.500 217.500 220.000 221.667 223.333 225.000 225.833 226.667 227.500 227.500 230.000 230.000 232.500 232.500 235.000 235.000 235.000 237.500 240.000 240.000 240.000 245.000 245.000 247.500 247.500 250.000 250.000 252.500 255.000 256.710 258.598 260.693 263.032 265.660 268.634 272.026 275.932 280.479 285.838 292.247 300.050 309.756 322.159
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 66 72 0 0 72 66 0 0 60 51 45 51 48 63 63 78 75 0 69 66 66 69 66 57 0 69 66 63 66 66 63 54 54 54 51 0 0 60 0 0 90 96 93 99 96 102 99 75 72 66 69 96 96 93 93 81 81 81 78 78 84 84 84 81 78 93 90 72 72 57 0 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 7.8125 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 7.8125 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="467">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 230.605 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0
</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 0.3537932 0.35311493 0.35197127 0.35037374 0.3483392 0.3457767 0.34277558 0.3392647 0.33529535 0.33075 0.32564294 0.31998846 0.3136597 0.3067674 0.2990953 0.29073656 0.2815179 0.271331 0.26021352 0.24793555 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.2387619 0.24452381 0.2502857 0.2560476 0.26180953 0.26757142 0.27333334 0.27909523 0.28485715 0.29061905 0.29638097 0.30214286 0.30790475 0.31366667 0.31942856 0.32519048 0.33095238 0.3367143 0.3424762 0.34823808 0.354 0.39300486 0.42683813 0.45921886 0.49150112 0.52446866 0.55867547 0.59462595 0.6328123 0.6737606 0.7180662 0.76643664 0.8197198 0.87892973 0.9452876 1.0202645 1.1054447 1.2024115 1.3122315 1.4348165 1.5681266 1.7082646 1.850415 1.9903513 2.1251771 2.2533817 2.3743856 2.4882433 2.595241 2.6957915 2.7903297 2.8792746 2.9630218 3.041899 3.1162052 3.1862056 3.2521436 3.314185 3.3725376 3.4273314 3.4787123 3.526777 3.571636 3.6133728 3.6520703 3.687798 3.7205985 3.7505352 3.777652 3.801985 3.8235693 3.8424299 3.85859 3.8720765 3.8829005 3.8910766 3.896614 3.899519 3.9 3.899867 3.898358 3.8952096 3.8904731 3.8842008 3.8764453 3.8672585 3.8566933 3.8448014 3.831635 3.8172452 3.8016837 3.785 3.7672448 3.7484665 3.7287135 3.7080333 3.6864727 3.6640766 3.6408904 3.616957 3.5923195 3.5670195 3.5410972 3.5145917 3.487542 3.4599848 3.4319563 3.4034913 3.374624 3.345387 3.3158119 3.2859292 3.2557688 3.225359 3.194727 3.1638992 3.1329012 3.1017575 3.0704913 3.039125 3.0076804 2.976178 2.9446373 2.9130776 2.8815165 2.8499715 2.818459 2.7869947 2.755593 2.7242687 2.6930346 2.661904 2.6308887 2.6000001 2.5692492 2.5386462 2.5082004 2.4779212 2.4478173 2.4178963 2.388166 2.3586333 2.3293047 2.3001866 2.2712846 2.2426038 2.2141495 2.1859257 2.1579368 2.1301868 2.102679 2.0754163 2.048402 2.0216384 1.9951279 1.9688725 1.9428738 1.9171336 1.891653 1.8664329 1.8414745 1.8167784 1.7923449 1.7681745 1.7442671 1.7206229 1.6972415 1.6741227 1.651266 1.6286708 1.6063362 1.5842617 1.562446 1.5408883 1.5195873 1.4985418 1.4777504 1.4572119 1.4369246 1.4168869 1.3970975 1.3775543 1.358256 1.3392004 1.3203859 1.3018105 1.2834724 1.2653695 1.2475 1.2298616 1.2124524 1.1952703 1.1783131 1.1615789 1.1450653 1.1287702 1.1126916 1.096827 1.0811745 1.0657318 1.0504965 1.0354666 1.0206398 1.0060139 0.9915867 0.9773559 0.96331936 0.9494748 0.9358201 0.922353 0.9090713 0.8959729 0.8830555 0.870317 0.85775524 0.8453681 0.83315337 0.82110894 0.80923283 0.7975228 0.7859768 0.7745929 0.7633689 0.7523028 0.7413926 0.73063636 0.72003204 0.7095776 0.6992712 0.68911093 0.6790948 0.66922086 0.6594874 0.64989245 0.6404342 0.63111085 0.6219205 0.6128616 0.6039321 0.5951304 0.5864547 0.5779034 0.56947476 0.5611671 0.55297875 0.54490817 0.53695357 0.52911353 0.5213864 0.5137706 0.5062646 0.49886695 0.49157605 0.48439047 0.47730872 0.47032937 0.46345097 0.45667213 0.44999143 0.4434075 0.436919 0.4305246 0.4242229 0.41801265 0.41189253 0.40586132 0.3999177 0.39406043 0.38828832 0.38260016 0.37699473 0.37147084 0.36602738 0.36066318 0.35537708 0.350168 0.34503478 0.33997643 0.3349918 0.33007985 0.32523957 0.32046992 0.31576985 0.31113836 0.30657452 0.30207732 0.29764578 0.293279 0.288976 0.2847359 0.28055775 0.2764407 0.27238384 0.26838627 0.2644472 0.26056576 0.25674108 0.2529724 0.24925882 0.24559961 0.24199398 0.23844112 0.23494029 0.23149072 0.22809166 0.2247424 0.2214422 0.21819033 0.21498612 0.21182886 0.20871785 0.20565246 0.20263198 0.19965579 0.19672322 0.19383365 0.19098645 0.188181 0.18541668 0.1826929 0.18000908 0.17736462 0.17475896 0.1721915 0.16966173 0.16716906 0.16471297 0.16229291 0.15990838 0.15755883 0.15524377 0.15296267 0.15071507 0.14850044 0.14631833 0.14416826 0.14204974 0.13996233 0.13790555 0.13587898 0.13388216 0.13191466 0.12997606 0.12806591 0.12618382 0.12432937 0.12250215 0.12070177 0.11892782 0.11717993 0.11545771 0.11376079 0.11208879 0.11044136 0.10881812 0.10721873 0.105642825 0.10409008 0.10256014 0.10105268 0.09956736 0.098103866 0.09666187 0.09524107 0.093841136 0.09246177 0.091102675 0.089763544 0.0884441 0.08714403 0.085863076 0.08460094 0.08335735 0.08213203 0.08092472 0.07973515 0.07856306 0.077408195 0.076270305 0.075149134 0.074044436 0.07295598 0.07188352 0.07082681 0.06978565 0.06875978 0.067748986 0.06675305 0.06577175 0.064804874 0.063852206 0.062913544 0.061988678 0.061077405 0.060179524 0.059294842 0.05842316 0.057564296 0.05671805 0.05588425 0.0550627 0.054253228 0.05345565 0.0526698 0.051895503 0.051132582 0.05038088

</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="3.9" PeakHeight="230.605" Num="5" zHalfNm="202.648" Error="1.72">
-64.966 12.276 -6.595 1.115 0.565
</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="6501.0" A="-2.85457187E11" B="8.8104064E7" C="-6798.028" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6501.0" EndDistance="6522.0" A="0.0" B="-1520.3873" C="0.28824937" Error="0.0155"/>
<QuasiParabolic ID="3" StartDistance="6522.0" EndDistance="6539.0" A="9.9235348E10" B="-3.0527886E7" C="2347.8635" Error="0.0155"/>
<QuasiParabolic ID="4" StartDistance="6539.0" EndDistance="6541.0" A="-5.7769814E11" B="1.76517072E8" C="-13483.683" Error="3.32E-4"/>
<QuasiParabolic ID="5" StartDistance="6541.0" EndDistance="6545.0" A="6.1337774E12" B="-1.87560806E9" C="143382.64" Error="0.0119"/>
<QuasiParabolic ID="6" StartDistance="6545.0" EndDistance="6549.0" A="1.37763501E12" B="-4.22241504E8" C="32353.865" Error="0.0086"/>
<QuasiParabolic ID="7" StartDistance="6549.0" EndDistance="6556.0" A="8.0236218E12" B="-2.45186022E9" C="187310.25" Error="0.0186"/>
<QuasiParabolic ID="8" StartDistance="6556.0" EndDistance="6558.0" A="3.093092E13" B="-9.4400532E9" C="720271.94" Error="0.00753"/>
<QuasiParabolic ID="9" StartDistance="6558.0" EndDistance="6567.0" A="4.536688E13" B="-1.3842603E10" C="1055934.4" Error="0.0147"/>
<QuasiParabolic ID="10" StartDistance="6567.0" EndDistance="6585.0" A="-1.47188519E13" B="4.4566907E9" C="-337342.1" Error="0.0077"/>
<QuasiParabolic ID="11" StartDistance="6585.0" EndDistance="6600.605" A="-1.91177781E13" B="5.7927347E9" C="-438788.12" Error="8.51E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="63.0" Depth="0.121"/>
<TopsideChapman PeakHeight="230.605" PeakDensity="188709.67" PeakScaleHeight="21.099" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
