<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 05:50:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 65% PACIFIC flags: Multiple candidates for F2o cusp, F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.09 (099) 05:50:00</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">
FF202609904090550001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.198" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.874" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="347.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="347.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="365.520" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="301.722" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="268.953" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.345" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="46.694" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.008" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.283" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="48.270" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.870" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="10">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
347.500 348.566 349.864 351.476 353.533 356.248 360.000 365.520 374.442 391.316
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 72 69 69 69 69 66 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="564">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.38533 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.77066 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 219.156 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 301.722 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0
</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 0.35362422 0.35321164 0.35257575 0.35179353 0.3507929 0.34957802 0.34822688 0.34667078 0.34491616 0.34304103 0.3409108 0.33853704 0.33600035 0.3333109 0.33034915 0.32713497 0.32375175 0.320096 0.31625503 0.3120828 0.30773193 0.3030239 0.2980689 0.29284942 0.28727302 0.2813497 0.27503398 0.26840255 0.26135522 0.2537757 0.2457671 0.23723046 0.22803192 0.21825908 0.20781003 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 0.20097065 0.20520312 0.2094356 0.21366808 0.21790054 0.22213303 0.22636549 0.23059797 0.23483044 0.23906292 0.24329539 0.24752787 0.25176033 0.25599283 0.2602253 0.26445776 0.26869023 0.27292272 0.2771552 0.28138766 0.28562015 0.28985262 0.2940851 0.29831755 0.30255005 0.3067825 0.31101498 0.31524748 0.31947994 0.3237124 0.32794487 0.33217737 0.33640984 0.3406423 0.3448748 0.34910727 0.35333973 0.354 0.37102082 0.39087024 0.4106604 0.43060192 0.45084032 0.4714936 0.49265093 0.51439536 0.53679496 0.5599075 0.58379114 0.60848725 0.6340331 0.66046196 0.6877947 0.71604407 0.7452071 0.77529263 0.8062787 0.83813643 0.8708308 0.90433156 0.9385845 0.9735343 1.0091246 1.0452985 1.081985 1.1191334 1.1566857 1.1945779 1.2327524 1.271164 1.309766 1.3485119 1.3873651 1.4262928 1.46525 1.5042112 1.5431575 1.5820566 1.6208833 1.6596262 1.6982515 1.7367467 1.7751013 1.8132826 1.8512826 1.8890707 1.9266446 1.9639777 2.0010414 2.0378168 2.0742846 2.1104183 2.1461847 2.1815612 2.2165005 2.2509806 2.2849472 2.3183722 2.3511965 2.383375 2.414855 2.445563 2.4754426 2.5044174 2.5324187 2.5593581 2.5851617 2.6097314 2.6329725 2.654796 2.6750965 2.6937826 2.7107532 2.725913 2.7391734 2.7504501 2.7596698 2.766768 2.7716968 2.7744184 2.775 2.7749646 2.7742577 2.7726622 2.770202 2.7669015 2.762785 2.757877 2.752202 2.7457845 2.738649 2.7308192 2.7223196 2.713174 2.7034066 2.6930401 2.6820982 2.6706035 2.6585789 2.6460466 2.6330283 2.6195457 2.6056201 2.591272 2.5765219 2.5613897 2.5458949 2.5300562 2.513893 2.497423 2.4806638 2.463633 2.4463477 2.4288237 2.4110773 2.3931236 2.3749783 2.3566558 2.33817 2.3195348 2.3007638 2.2818694 2.2628646 2.2437608 2.2245703 2.2053041 2.1859732 2.1665878 2.1471581 2.1276941 2.1082048 2.0886996 2.0691867 2.049675 2.0301719 2.0106854 1.9912227 1.971791 1.9523971 1.9330473 1.9137478 1.8945044 1.875323 1.8562088 1.8371668 1.818202 1.799319 1.7805223 1.7618159 1.7432039 1.7246898 1.7062775 1.68797 1.6697707 1.6516824 1.633708 1.6158501 1.5981112 1.5804935 1.562999 1.5456301 1.5283883 1.5112754 1.4942931 1.4774427 1.4607255 1.4441429 1.4276959 1.4113854 1.3952124 1.3791776 1.3632816 1.3475252 1.3319088 1.316433 1.3010976 1.2859035 1.2708504 1.2559388 1.2411684 1.2265394 1.2120515 1.1977048 1.1834991 1.1694338 1.155509 1.1417242 1.1280789 1.1145728 1.1012052 1.0879759 1.074884 1.0619292 1.0491107 1.0364277 1.0238798 1.011466 0.99918574 0.9870382 0.9750225 0.9631379 0.9513836 0.9397586 0.9282621 0.9168932 0.905651 0.89453447 0.88354284 0.872675 0.8619301 0.8513071 0.840805 0.8304228 0.8201596 0.81001437 0.799986 0.7900735 0.78027594 0.7705922 0.76102126 0.7515621 0.7422138 0.7329751 0.7238451 0.71482277 0.70590705 0.6970969 0.6883912 0.67978907 0.67128944 0.6628912 0.6545934 0.646395 0.638295 0.6302923 0.622386 0.61457497 0.6068583 0.599235 0.591704 0.5842644 0.5769151 0.56965524 0.5624838 0.55539984 0.54840237 0.54149044 0.5346631 0.5279194 0.5212585 0.5146793 0.50818104 0.50176275 0.49542353 0.48916245 0.48297867 0.47687128 0.47083938 0.46488217 0.4589987 0.4531882 0.4474498 0.44178262 0.43618587 0.4306587 0.4252003 0.4198099 0.41448665 0.4092298 0.40403852 0.39891207 0.39384964 0.3888505 0.38391393 0.3790391 0.37422532 0.36947185 0.36477798 0.36014298 0.3555661 0.35104674 0.3465841 0.34217754 0.3378264 0.33352995 0.3292876 0.3250986 0.3209624 0.31687826 0.31284562 0.30886382 0.3049322 0.30105022 0.29721722 0.29343262 0.2896958 0.2860062 0.2823632 0.27876627 0.27521482 0.2717083 0.2682461 0.26482776 0.26145267 0.25812033 0.25483018 0.2515817 0.24837439 0.24520773 0.2420812 0.23899432 0.2359466 0.23293751 0.22996663 0.22703344 0.22413747 0.22127827 0.21845537 0.21566832 0.21291667 0.21019998 0.20751782 0.20486972 0.2022553 0.1996741 0.19712572 0.19460975 0.19212577 0.18967338 0.1872522 0.18486181 0.18250184 0.18017189 0.17787161 0.17560062 0.17335853 0.17114498 0.16895962 0.1668021 0.16467203 0.16256912 0.16049299 0.1584433 0.15641972 0.15442194 0.15244961 0.15050241 0.14858004 0.14668217 0.1448085 0.1429587 0.1411325 0.13932957 0.13754964 0.1357924 0.13405758 0.13234487 0.13065402 0.12898473 0.12733674 0.12570977 0.12410355 0.12251784 0.120952345 0.119406834 0.117881045 0.11637472 0.11488763 0.11341951 0.111970134 0.11053926 0.10912664 0.10773206 0.10635528 0.10499607 0.10365422 0.1023295 0.10102169 0.09973058 0.09845596 0.09719761 0.095955335 0.09472892 0.09351816 0.09232287 0.09114284 0.08997788 0.08882781 0.08769242 0.08657153 0.08546496 0.08437253 0.08329405 0.082229346 0.08117824 0.08014057 0.07911614 0.07810482 0.0771064 0.07612074 0.07514768 0.07418705 0.07323869 0.07230245 0.07137817 0.07046571 0.069564894 0.06867559 0.06779766 0.06693094 0.0660753 0.06523059 0.06439668 0.06357343 0.06276069 0.06195834 0.06116624 0.06038427 0.05961229 0.058850177 0.058097802 0.057355046 0.05662178 0.055897888 0.055183247 0.05447774 0.05378125 0.05309366 0.05241486 0.051744737 0.05108318 0.050430078

</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="2.775" PeakHeight="301.722" Num="5" zHalfNm="268.953" Error="1.311">
-80.326 -3.974 2.642 -1.533 0.625
</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="6516.385" A="-1.14857984E11" B="3.5449996E7" C="-2735.2139" Error="0.00175"/>
<QuasiParabolic ID="2" StartDistance="6516.385" EndDistance="6552.771" A="0.0" B="-641.1185" C="0.13842255" Error="0.0146"/>
<QuasiParabolic ID="3" StartDistance="6552.771" EndDistance="6587.0" A="4.1741181E10" B="-1.2805715E7" C="982.1763" Error="0.0146"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6588.0" A="-9.4105928E11" B="2.85600384E8" C="-21668.963" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6590.0" A="5.6507294E12" B="-1.7155497E9" C="130209.46" Error="0.0134"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6601.0" A="1.22949861E12" B="-3.73749888E8" C="28403.707" Error="0.011"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6633.0" A="3.28563766E12" B="-9.9672794E8" C="75591.87" Error="0.00963"/>
<QuasiParabolic ID="8" StartDistance="6633.0" EndDistance="6658.0" A="6.6268548E11" B="-2.0584832E8" C="15974.827" Error="0.0147"/>
<QuasiParabolic ID="9" StartDistance="6658.0" EndDistance="6671.722" A="-1.09802705E13" B="3.29158502E9" C="-246674.11" Error="0.00453"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.156" Depth="0.154"/>
<TopsideChapman PeakHeight="301.722" PeakDensity="95541.25" PeakScaleHeight="24.283" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
