<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-10 -130 21:25:00.000"
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="20.0">
<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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.10 (130) 21:25:00</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">
FF202613005102125001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.671" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.426" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.825" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="207.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="207.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="262.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.604" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="241.125" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.031" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.189" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="47.379" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.714" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.503" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.060" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.720" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="61">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 207.500 207.500 210.000 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 220.000 222.500 222.500 225.000 225.000 225.000 227.500 227.500 227.500 230.000 231.250 232.500 232.500 235.000 235.000 237.500 240.000 240.000 242.500 242.500 245.000 247.500 247.500 252.500 255.000 257.500 260.000 260.000 262.500 270.000 275.000 275.000 279.898 285.558 292.176 300.016 309.451 321.022 335.549 354.328 379.549
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 48 60 66 69 63 75 69 75 84 81 84 84 84 93 90 90 90 81 75 63 66 69 66 54 57 66 63 63 66 42 51 51 48 60 60 75 78 90 87 60 57 81 78 78 75 69 69 72 66 60 60 63 63 66 69 72 75 42 39 27
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="578">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.089 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.75 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 155.5 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.25 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 241.125 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.26027697 0.31699422 0.36253956 0.40017933 0.43212584 0.45971024 0.4837615 0.50484943 0.5233494 0.5395519 0.55365974 0.56583 0.57618207 0.58480895 0.59178305 0.5971556 0.6009663 0.60324305 0.604 0.6036128 0.6025125 0.60064745 0.598033 0.59463334 0.59042305 0.5854444 0.5796927 0.5730687 0.565604 0.55719614 0.5479044 0.5375825 0.5262668 0.5138049 0.5001743 0.48521915 0.46880248 0.45076615 0.43086672 0.40882468 0.38417393 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.36536264 0.3760879 0.3868132 0.39753845 0.40826374 0.418989 0.4297143 0.44043955 0.45116484 0.4618901 0.4726154 0.48334065 0.49406594 0.5047912 0.51551646 0.5262418 0.53696704 0.5476923 0.55841756 0.5691429 0.57986814 0.5905934 0.60131866 0.604 0.6261057 0.6601909 0.7002607 0.7465839 0.7985539 0.8547502 0.9135815 0.97380704 1.0347103 1.0960766 1.1579466 1.2205057 1.2840576 1.3489735 1.4156572 1.4845597 1.5562223 1.6312449 1.710349 1.7944242 1.884532 1.9819671 2.088424 2.2058299 2.3364692 2.4822662 2.643665 2.8168895 2.9926794 3.1593318 3.3089745 3.4396756 3.5529459 3.6514459 3.7376893 3.813855 3.881618 3.942318 3.99702 4.046535 4.0915284 4.132546 4.1700177 4.2043056 4.2357054 4.264478 4.2908254 4.3149323 4.336953 4.3570147 4.3752375 4.3917174 4.4065347 4.419765 4.4314666 4.441696 4.4505 4.457911 4.4639635 4.468681 4.4720836 4.474183 4.4749937 4.475 4.474527 4.472845 4.4699745 4.4659452 4.4607873 4.454531 4.4472065 4.4388447 4.4294753 4.419129 4.4078355 4.395625 4.3825274 4.3685718 4.3537874 4.338204 4.32185 4.304753 4.286942 4.2684436 4.2492857 4.229495 4.2090974 4.1881194 4.166586 4.1445217 4.121952 4.098901 4.0753903 4.051445 4.0270867 4.0023375 3.9772186 3.9517512 3.925956 3.8998525 3.8734603 3.8467984 3.8198853 3.7927384 3.7653759 3.7378142 3.7100701 3.6821592 3.6540973 3.6258993 3.5975797 3.5691528 3.5406322 3.5120308 3.483362 3.4546375 3.4258697 3.39707 3.3682492 3.3394186 3.3105881 3.281768 3.2529678 3.2241964 3.1954632 3.1667764 3.1381443 3.1095748 3.0810752 3.0526533 3.0243154 2.9960687 2.967919 2.939873 2.911936 2.8841138 2.8564115 2.8288343 2.8013868 2.7740738 2.7468994 2.7198677 2.6929827 2.666248 2.6396673 2.6132436 2.5869799 2.5608795 2.5349448 2.5091784 2.483583 2.4581604 2.4329128 2.4078422 2.3829505 2.358239 2.3337095 2.3093634 2.2852018 2.2612257 2.2374365 2.2138348 2.1904216 2.1671972 2.144163 2.1213183 2.0986645 2.0762017 2.05393 2.0318494 2.0099602 1.9882624 1.9667559 1.9454404 1.9243159 1.9033821 1.8826386 1.8620849 1.8417207 1.8215455 1.8015587 1.7817597 1.762148 1.7427226 1.7234832 1.7044287 1.6855583 1.6668714 1.6483669 1.630044 1.6119018 1.5939392 1.5761553 1.558549 1.5411195 1.5238653 1.5067859 1.4898796 1.4731457 1.4565829 1.4401901 1.423966 1.4079096 1.3920196 1.3762949 1.360734 1.3453358 1.3300993 1.3150231 1.3001058 1.2853463 1.2707433 1.2562954 1.2420015 1.2278603 1.2138705 1.2000309 1.18634 1.1727967 1.1593996 1.1461475 1.1330391 1.1200731 1.1072481 1.094563 1.0820165 1.0696073 1.057334 1.0451955 1.0331904 1.0213175 1.0095756 0.9979634 0.9864797 0.9751231 0.9638926 0.95278674 0.9418044 0.93094444 0.92020553 0.9095865 0.8990861 0.8887032 0.8784367 0.86828524 0.8582478 0.8483231 0.8385101 0.8288076 0.8192144 0.80972946 0.8003516 0.79107976 0.7819128 0.7728496 0.76388913 0.7550303 0.7462719 0.7376131 0.7290526 0.7205896 0.7122228 0.7039514 0.69577426 0.6876904 0.67969877 0.67179847 0.6639884 0.65626764 0.6486352 0.6410902 0.6336316 0.6262585 0.6189699 0.6117649 0.6046427 0.59760225 0.59064263 0.5837631 0.57696265 0.57024044 0.56359565 0.55702734 0.5505347 0.5441169 0.53777313 0.5315025 0.5253042 0.5191775 0.5131215 0.50713545 0.5012186 0.49537018 0.48958933 0.48387536 0.47822753 0.472645 0.46712717 0.46167323 0.45628244 0.45095414 0.4456876 0.44048208 0.43533695 0.4302515 0.42522505 0.42025694 0.4153465 0.41049308 0.405696 0.40095466 0.3962684 0.39163658 0.38705862 0.38253388 0.3780617 0.3736416 0.3692729 0.36495498 0.36068735 0.35646936 0.35230047 0.34818012 0.34410775 0.3400828 0.33610475 0.33217302 0.3282871 0.32444644 0.32065058 0.31689894 0.31319103 0.30952635 0.30590442 0.3023247 0.29878673 0.29529005 0.29183415 0.2884186 0.28504285 0.28170654 0.27840912 0.27515024 0.27192935 0.2687461 0.2656 0.26249066 0.2594176 0.25638044 0.25337875 0.2504121 0.24748014 0.24458241 0.24171856 0.23888814 0.23609082 0.23332618 0.23059385 0.22789346 0.22522463 0.22258699 0.21998018 0.21740386 0.21485765 0.21234122 0.20985422 0.20739628 0.2049671 0.20256633 0.20019363 0.19784868 0.19553116 0.19324075 0.19097714 0.18874 0.18652904 0.18434393 0.18218441 0.18005015 0.17794086 0.17585625 0.17379604 0.17175993 0.16974765 0.16775893 0.16579348 0.16385104 0.16193132 0.16003409 0.15815905 0.15630597 0.15447457 0.15266463 0.15087587 0.14910804 0.14736092 0.14563425 0.1439278 0.14224133 0.1405746 0.13892739 0.13729946 0.13569061 0.13410059 0.13252918 0.13097619 0.12944138 0.12792455 0.12642547 0.12494396 0.12347979 0.12203277 0.120602705 0.11918939 0.11779262 0.116412215 0.115047984 0.11369973 0.112367265 0.111050405 0.109748974 0.108462796 0.107191674 0.10593545 0.10469394 0.10346697 0.10225438 0.101055995 0.09987164 0.09870117 0.09754442 0.09640121 0.09527139 0.09415482 0.09305132 0.09196076 0.09088297 0.08981781 0.08876513 0.08772478 0.086696625 0.08568052 0.08467632 0.08368388 0.08270307 0.081733756 0.0807758 0.07982907 0.07889343 0.077968754 0.07705491 0.07615178 0.07525923 0.07437714 0.073505394 0.07264385 0.071792416 0.07095095 0.07011934 0.06929749 0.06848527 0.06768256 0.066889256 0.066105254 0.06533044 0.0645647 0.063807935 0.063060045 0.062320914 0.061590448 0.06086854 0.060155094 0.05945001 0.05875319 0.058064535 0.05738395 0.056711342 0.05604662 0.055389684 0.054740448 0.054098822 0.05346472 0.052838042 0.052218713 0.05160664 0.051001746 0.050403938

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.604" PeakHeight="110.0" Num="3" Error="0.0">
-23.716 5.396 -0.591
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.604" EndFrequency="4.475" PeakHeight="241.125" Num="5" zHalfNm="208.031" Error="2.186">
-75.014 21.075 -13.397 6.426 -1.965
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.041" EndDistance="6480.001" A="-1.60482551E12" B="4.95316512E8" C="-38218.5" Error="0.00779"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6502.75" A="-8.0506736E11" B="2.48477584E8" C="-19172.29" Error="0.00424"/>
<QuasiParabolic ID="2" StartDistance="6502.75" EndDistance="6525.5" A="0.0" B="-505.75955" C="0.20792584" Error="0.00633"/>
<QuasiParabolic ID="3" StartDistance="6525.5" EndDistance="6547.0" A="2.20589949E11" B="-6.7924976E7" C="5228.9526" Error="0.00947"/>
<QuasiParabolic ID="4" StartDistance="6547.0" EndDistance="6553.0" A="1.12218446E13" B="-3.42862618E9" C="261888.58" Error="0.00945"/>
<QuasiParabolic ID="5" StartDistance="6553.0" EndDistance="6564.0" A="9.5688149E12" B="-2.92411494E9" C="223393.9" Error="0.00514"/>
<QuasiParabolic ID="6" StartDistance="6564.0" EndDistance="6569.0" A="2.49711936E13" B="-7.6171008E9" C="580873.0" Error="0.00125"/>
<QuasiParabolic ID="7" StartDistance="6569.0" EndDistance="6578.0" A="7.7311282E13" B="-2.35525816E10" C="1793803.6" Error="0.013"/>
<QuasiParabolic ID="8" StartDistance="6578.0" EndDistance="6587.0" A="-7.8547603E13" B="2.38353428E10" C="-1808197.4" Error="0.0192"/>
<QuasiParabolic ID="9" StartDistance="6587.0" EndDistance="6611.125" A="-1.25786233E13" B="3.80528973E9" C="-287774.4" Error="0.0118"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="68.25" Depth="0.244"/>
<TopsideChapman PeakHeight="241.125" PeakDensity="248456.89" PeakScaleHeight="26.503" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
