<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 06:25:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 06:25:00</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">
FF202612405040625001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.306" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.166" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.675" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.675" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.375" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="288.513" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="288.513" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="302.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.675" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.675" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="291.617" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="259.900" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.575" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="45.332" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.215" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.475" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="41.750" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.960" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
288.513 290.808 292.500 295.000 300.000 302.500 307.500 312.500 317.500 325.000 332.500 342.500 352.500 370.000 390.000 417.500 460.384
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -1.5625 -1.5625 -1.5625 -1.5625 -7.8125 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="565">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.092 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.184 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.276 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 291.617 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0
</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 0.35171902 0.35071892 0.34950462 0.34815413 0.34652644 0.34477356 0.34282959 0.34063274 0.3382637 0.335732 0.3329153 0.32989746 0.3266944 0.32323012 0.3195296 0.31559002 0.3113852 0.30689827 0.3021223 0.29708597 0.29172918 0.2860409 0.28003317 0.27358517 0.26679435 0.25952134 0.2518196 0.24359629 0.23478337 0.22544213 0.21535473 0.20458843 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 0.20348176 0.20774864 0.21201551 0.21628238 0.22054926 0.22481614 0.22908302 0.23334989 0.23761676 0.24188364 0.24615051 0.25041738 0.25468424 0.25895113 0.263218 0.26748487 0.27175173 0.27601862 0.2802855 0.28455237 0.28881925 0.2930861 0.297353 0.30161986 0.30588675 0.3101536 0.3144205 0.31868735 0.32295424 0.3272211 0.33148798 0.33575484 0.34002173 0.3442886 0.34855548 0.35282233 0.354 0.36800233 0.38894424 0.4117068 0.43616617 0.46215248 0.4894776 0.5179619 0.54743946 0.5777921 0.6089472 0.64084715 0.673472 0.7068321 0.7409439 0.7758376 0.81156904 0.8481785 0.88574183 0.9243084 0.9639677 1.004772 1.0468172 1.0901748 1.13493 1.1811478 1.228916 1.2783104 1.3293645 1.3821443 1.4366605 1.492921 1.5508826 1.6104532 1.671517 1.7338789 1.7972862 1.8614486 1.9260279 1.9906155 2.054832 2.1182656 2.1805286 2.241292 2.3002555 2.3571887 2.4118876 2.4642498 2.5141826 2.5616505 2.606644 2.6491802 2.6892955 2.7270503 2.762495 2.7957027 2.8267324 2.8556557 2.8825383 2.9074419 2.9304268 2.9515517 2.9708667 2.9884214 3.0042586 3.0184164 3.0309358 3.0418427 3.0511682 3.0589314 3.0651553 3.0698528 3.0730364 3.0747142 3.075 3.0749266 3.0740526 3.0722115 3.0694294 3.0657332 3.0611486 3.0557022 3.0494208 3.0423307 3.0344582 3.0258296 3.0164707 3.006408 2.9956665 2.984272 2.9722495 2.9596238 2.9464195 2.9326603 2.9183705 2.903573 2.888291 2.8725467 2.8563623 2.8397596 2.8227592 2.8053823 2.787649 2.769579 2.7511914 2.732505 2.7135384 2.6943092 2.6748347 2.655132 2.6352172 2.615106 2.5948145 2.5743573 2.5537488 2.533003 2.5121338 2.4911542 2.4700768 2.448914 2.4276776 2.4063792 2.3850298 2.36364 2.3422198 2.3207796 2.2993283 2.2778754 2.2564294 2.234999 2.213592 2.1922164 2.1708796 2.1495883 2.1283495 2.1071699 2.0860555 2.0650122 2.0440457 2.0231612 2.0023642 1.981659 1.9610507 1.9405434 1.9201415 1.8998486 1.8796686 1.8596051 1.8396611 1.8198401 1.8001447 1.7805777 1.7611418 1.7418393 1.7226725 1.7036434 1.684754 1.6660061 1.6474012 1.6289409 1.6106267 1.5924596 1.5744408 1.5565716 1.5388526 1.5212847 1.5038685 1.4866048 1.4694939 1.4525363 1.4357325 1.4190825 1.4025866 1.3862448 1.3700572 1.3540237 1.3381443 1.3224187 1.3068467 1.2914281 1.2761624 1.2610493 1.2460883 1.2312789 1.2166206 1.2021128 1.1877549 1.1735462 1.159486 1.1455737 1.1318085 1.1181895 1.1047158 1.0913868 1.0782015 1.0651591 1.0522585 1.0394989 1.0268793 1.0143988 1.0020562 0.9898508 0.9777814 0.96584696 0.9540465 0.9423789 0.93084306 0.919438 0.90816265 0.89701587 0.8859965 0.87510353 0.86433583 0.8536923 0.8431718 0.8327732 0.82249546 0.81233734 0.80229783 0.79237574 0.78256994 0.77287936 0.76330286 0.7538393 0.7444876 0.7352466 0.7261152 0.71709234 0.7081769 0.69936776 0.6906638 0.682064 0.6735672 0.66517234 0.6568784 0.6486842 0.6405888 0.63259107 0.62468994 0.6168844 0.6091735 0.601556 0.594031 0.5865975 0.57925445 0.57200086 0.56483567 0.55775803 0.5507668 0.54386115 0.53704 0.53030246 0.52364755 0.51707435 0.5105819 0.5041693 0.4978356 0.49157992 0.48540133 0.47929898 0.47327194 0.46731934 0.46144032 0.45563403 0.44989958 0.4442362 0.43864295 0.4331191 0.42766377 0.42227617 0.41695547 0.41170093 0.4065117 0.40138704 0.39632618 0.39132833 0.38639277 0.38151872 0.37670544 0.37195224 0.36725834 0.36262307 0.3580457 0.35352552 0.34906185 0.344654 0.3403013 0.3360031 0.33175868 0.32756743 0.3234287 0.3193418 0.31530616 0.31132114 0.30738607 0.30350038 0.29966348 0.29587474 0.29213357 0.2884394 0.28479165 0.2811897 0.27763307 0.27412114 0.2706534 0.26722923 0.2638482 0.26050967 0.25721318 0.2539582 0.25074416 0.24757065 0.2444371 0.24134302 0.23828793 0.23527135 0.23229279 0.22935177 0.22644785 0.22358055 0.22074942 0.217954 0.21519385 0.21246852 0.2097776 0.20712063 0.20449722 0.2019069 0.19934931 0.19682401 0.19433062 0.19186871 0.18943791 0.18703781 0.18466805 0.18232822 0.18001796 0.17773691 0.1754847 0.17326094 0.17106532 0.16889744 0.16675699 0.16464359 0.16255693 0.16049665 0.15846244 0.15645397 0.15447089 0.15251291 0.1505797 0.14867096 0.14678638 0.14492564 0.14308845 0.1412745 0.13948353 0.13771522 0.1359693 0.13424547 0.13254347 0.13086304 0.12920387 0.12756571 0.1259483 0.12435136 0.122774646 0.12121791 0.11968088 0.118163325 0.11666499 0.11518563 0.11372502 0.11228291 0.110859066 0.10945326 0.10806526 0.106694855 0.105341814 0.10400591 0.102686934 0.10138468 0.100098915 0.09882945 0.097576074 0.09633858 0.095116764 0.09391044 0.092719406 0.091543466 0.09038243 0.0892361 0.088104315 0.08698687 0.08588359 0.08479429 0.08371881 0.08265695 0.08160856 0.08057346 0.07955148 0.078542456 0.077546224 0.07656263 0.0755915 0.07463268 0.07368602 0.07275136 0.07182855 0.07091744 0.07001789 0.06912974 0.068252854 0.06738709 0.0665323 0.06568835 0.0648551 0.06403242 0.063220166 0.06241822 0.061626438 0.0608447 0.060072877 0.05931084 0.058558464 0.057815634 0.05708222 0.05635811 0.055643186 0.054937325 0.054240417 0.05355235 0.052873004 0.05220228 0.05154006 0.05088624 0.05024071

</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="3.075" PeakHeight="291.617" Num="5" zHalfNm="259.9" Error="3.19">
-77.552 7.565 -5.307 2.821 -0.868
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6516.092" A="-1.16724523E11" B="3.6026088E7" C="-2779.6653" Error="0.00173"/>
<QuasiParabolic ID="2" StartDistance="6516.092" EndDistance="6552.184" A="0.0" B="-1604.5383" C="0.286276" Error="0.0347"/>
<QuasiParabolic ID="3" StartDistance="6552.184" EndDistance="6581.0" A="5.8021794E10" B="-1.776617E7" C="1360.0205" Error="0.0347"/>
<QuasiParabolic ID="4" StartDistance="6581.0" EndDistance="6585.0" A="-4.79184323E11" B="1.45493552E8" C="-11043.849" Error="0.0127"/>
<QuasiParabolic ID="5" StartDistance="6585.0" EndDistance="6606.0" A="2.74957206E12" B="-8.3514618E8" C="63416.266" Error="0.0348"/>
<QuasiParabolic ID="6" StartDistance="6606.0" EndDistance="6632.0" A="8.2316781E12" B="-2.49488179E9" C="189039.61" Error="0.0349"/>
<QuasiParabolic ID="7" StartDistance="6632.0" EndDistance="6661.617" A="-9.3005095E12" B="2.79226778E9" C="-209569.38" Error="0.00287"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.276" Depth="0.154"/>
<TopsideChapman PeakHeight="291.617" PeakDensity="117315.445" PeakScaleHeight="24.475" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
