<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 02:55:00.000"
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 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) 02:55:00</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">
FF202612705070255001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.650" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.498" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="275.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="275.000" 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="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="281.403" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="256.640" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.838" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.469" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.003" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.115" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.280" 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="7">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.0 3.025 3.05 3.075 3.1 3.125 3.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 292.500 302.284 316.022 336.715 371.438 441.774
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 90 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 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="477">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.523 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.046 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.569 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 281.403 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0
</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 0.35369936 0.35321155 0.35265046 0.35186782 0.3509409 0.34987223 0.3485916 0.34710422 0.34548807 0.3436766 0.3416772 0.33949807 0.33714813 0.3345699 0.3317773 0.3287853 0.32560968 0.3222057 0.31859562 0.31474474 0.31068274 0.30633217 0.30173725 0.29681927 0.2916663 0.28625047 0.28039655 0.27431187 0.26781684 0.26089606 0.25355166 0.24578562 0.23751381 0.2286116 0.21919549 0.20911035 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 0.2 0.2 0.2 0.2 0.20391536 0.20801951 0.21212366 0.2162278 0.22033195 0.2244361 0.22854026 0.23264441 0.23674856 0.2408527 0.24495685 0.249061 0.25316516 0.2572693 0.26137346 0.2654776 0.26958174 0.2736859 0.27779004 0.2818942 0.28599834 0.2901025 0.29420665 0.2983108 0.30241495 0.3065191 0.31062326 0.3147274 0.31883153 0.3229357 0.32703984 0.331144 0.33524814 0.33935228 0.34345645 0.34756058 0.35166475 0.354 0.36243138 0.38426244 0.40965208 0.43896398 0.47224385 0.5091602 0.54907346 0.5912409 0.63503796 0.6800234 0.72594726 0.7727095 0.8203017 0.8687808 0.9182439 0.96881396 1.0206177 1.0737906 1.1284869 1.1848422 1.2429999 1.3031175 1.3652992 1.429663 1.4962862 1.5652119 1.6364036 1.7097784 1.7851343 1.8621912 1.9405373 2.0196352 2.0988724 2.1775916 2.2550745 2.330671 2.4037826 2.4739227 2.5407093 2.603892 2.663306 2.7188847 2.770623 2.818572 2.8628123 2.9034433 2.9405758 2.9743273 3.0048213 3.0321531 3.056436 3.0777597 3.0962033 3.1118443 3.1247437 3.1349516 3.1425107 3.1474502 3.1497898 3.15 3.1497018 3.1478903 3.144484 3.1395392 3.133113 3.1252618 3.1160426 3.1055124 3.0937276 3.0807438 3.0666163 3.0513997 3.0351481 3.017914 2.99975 2.980706 2.960832 2.9401774 2.918789 2.8967128 2.8739939 2.850676 2.8268015 2.8024113 2.777545 2.752241 2.726536 2.7004662 2.6740656 2.6473675 2.6204038 2.5932047 2.5657997 2.538217 2.5104835 2.4826245 2.4546652 2.4266284 2.398537 2.3704116 2.3422732 2.3141408 2.2860327 2.257966 2.2299573 2.2020223 2.1741755 2.1464307 2.1188009 2.0912986 2.0639353 2.036722 2.0096684 1.9827845 1.9560789 1.9295598 1.9032352 1.8771119 1.8511966 1.8254956 1.8000141 1.7747576 1.7497307 1.7249376 1.7003821 1.6760677 1.6519977 1.6281747 1.6046011 1.5812792 1.5582105 1.5353969 1.5128394 1.4905391 1.4684968 1.446713 1.425188 1.4039218 1.3829145 1.3621659 1.3416754 1.3214425 1.3014665 1.2817463 1.2622812 1.2430698 1.224111 1.2054033 1.1869453 1.1687355 1.1507723 1.1330538 1.1155783 1.0983438 1.0813485 1.0645903 1.0480673 1.0317774 1.0157182 0.99988776 0.98428375 0.96890396 0.953746 0.9388077 0.92408675 0.90958065 0.89528716 0.8812038 0.8673282 0.8536581 0.8401909 0.82692426 0.8138558 0.8009831 0.78830373 0.77581525 0.76351535 0.75140154 0.7394715 0.7277228 0.71615314 0.7047601 0.6935413 0.6824945 0.6716173 0.6609075 0.65036273 0.6399808 0.6297594 0.61969626 0.6097892 0.6000361 0.5904347 0.5809828 0.5716784 0.5625193 0.55350345 0.54462874 0.5358932 0.5272947 0.51883125 0.5105009 0.5023017 0.49423167 0.48628893 0.47847158 0.47077772 0.46320555 0.4557532 0.44841892 0.44120088 0.43409732 0.42710656 0.42022684 0.41345647 0.40679377 0.40023714 0.39378494 0.38743556 0.3811874 0.37503892 0.3689886 0.36303487 0.3571763 0.35141134 0.34573862 0.34015664 0.33466402 0.32925937 0.3239413 0.31870842 0.31355947 0.3084931 0.303508 0.29860294 0.2937766 0.28902778 0.28435528 0.27975783 0.2752343 0.2707835 0.2664043 0.26209554 0.2578561 0.25368494 0.24958089 0.24554296 0.24157006 0.23766117 0.23381527 0.23003134 0.22630842 0.22264552 0.2190417 0.215496 0.21200751 0.20857531 0.20519848 0.20187616 0.19860747 0.19539155 0.19222756 0.18911466 0.18605205 0.1830389 0.18007444 0.17715786 0.17428842 0.17146537 0.16868792 0.16595538 0.16326702 0.16062212 0.15801997 0.15545993 0.15294127 0.15046334 0.14802551 0.14562711 0.1432675 0.14094608 0.1386622 0.13641529 0.13420473 0.13202997 0.12989038 0.12778543 0.12571454 0.12367719 0.12167281 0.11970088 0.117760874 0.11585228 0.11397459 0.112127304 0.11030993 0.10852198 0.106763 0.105032496 0.10333002 0.10165512 0.10000735 0.098386265 0.09679144 0.09522245 0.09367888 0.09216031 0.09066634 0.08919658 0.08775063 0.086328104 0.084928624 0.083551824 0.08219733 0.08086479 0.079553835 0.078264125 0.07699531 0.07574706 0.07451904 0.07331092 0.07212237 0.07095309 0.06980276 0.06867108 0.06755773 0.06646243 0.06538488 0.06432479 0.06328189 0.06225589 0.06124652 0.060253512 0.0592766 0.058315523 0.057370022 0.05643985 0.05552475 0.05462449 0.053738825 0.052867513 0.052010324 0.051167034 0.050337415

</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="3.15" PeakHeight="281.403" Num="5" zHalfNm="256.64" Error="2.495">
-61.5 5.026 -3.431 2.024 -0.953
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6517.523" A="-1.08031713E11" B="3.3343122E7" C="-2572.6465" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.523" EndDistance="6555.046" A="0.0" B="364.63025" C="-0.015906995" Error="0.00703"/>
<QuasiParabolic ID="3" StartDistance="6555.046" EndDistance="6588.0" A="2.86044938E10" B="-8800995.0" C="676.96216" Error="0.00703"/>
<QuasiParabolic ID="4" StartDistance="6588.0" EndDistance="6591.0" A="-1.99320355E11" B="6.0392948E7" C="-4574.5513" Error="0.00431"/>
<QuasiParabolic ID="5" StartDistance="6591.0" EndDistance="6596.0" A="4.7567628E12" B="-1.44350131E9" C="109512.4" Error="0.0188"/>
<QuasiParabolic ID="6" StartDistance="6596.0" EndDistance="6610.0" A="5.6042696E12" B="-1.70047718E9" C="128992.08" Error="0.00656"/>
<QuasiParabolic ID="7" StartDistance="6610.0" EndDistance="6629.0" A="1.34267326E13" B="-4.0673344E9" C="308028.2" Error="0.011"/>
<QuasiParabolic ID="8" StartDistance="6629.0" EndDistance="6651.403" A="-1.61652461E13" B="4.8607027E9" C="-365379.38" Error="0.005"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.569" Depth="0.154"/>
<TopsideChapman PeakHeight="281.403" PeakDensity="123107.94" PeakScaleHeight="19.115" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
