<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 07:10:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.07 (097) 07:10:00</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">
FF202609704070710001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.275" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.598" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.382" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.125" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.125" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="283.715" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="247.576" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.744" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.926" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="44.989" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.277" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.482" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="36.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.150" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="87">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
215.000 215.000 215.000 215.000 215.000 215.500 216.000 216.500 217.000 217.500 217.500 218.750 220.000 220.000 220.000 220.000 221.250 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 228.125 228.750 229.375 230.000 230.000 230.000 230.833 231.667 232.500 233.333 234.167 235.000 235.000 235.000 235.000 237.500 238.750 240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 245.000 246.250 247.500 247.500 250.000 250.000 252.500 252.500 252.500 254.500 256.500 258.500 260.500 262.500 265.000 265.000 266.250 267.500 270.000 272.500 274.713 277.261 280.224 283.715 287.886 292.961 299.265 307.310 317.931 332.601 354.181 389.056
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 78 66 0 66 0 0 0 0 51 48 0 48 0 51 54 0 51 66 66 54 48 54 57 57 57 45 45 42 42 0 0 0 63 54 51 0 0 0 0 0 69 0 45 45 42 0 66 84 87 78 75 66 66 90 93 63 69 69 63 54 45 48 45 0 0 0 0 87 84 63 63 90 93 108 105 105 105 93 90 0 0 90 87 0 90 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 -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 -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 -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="546">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 247.576 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0
</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 0.353812 0.35317364 0.35223874 0.35086352 0.34905878 0.3468389 0.3442219 0.3411586 0.33767787 0.33367795 0.32927206 0.3243802 0.3189446 0.3129916 0.30645373 0.29930657 0.29149976 0.28296635 0.27368933 0.26350668 0.2523124 0.24007721 0.22657463 0.21160045 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 0.20628572 0.21257143 0.21885714 0.22514285 0.23142858 0.23771429 0.244 0.2502857 0.25657144 0.26285714 0.26914287 0.27542856 0.2817143 0.288 0.2942857 0.30057144 0.30685714 0.31314287 0.31942856 0.3257143 0.332 0.3382857 0.34457144 0.35085714 0.354 0.37081963 0.40405396 0.43722686 0.47075233 0.50492823 0.5400339 0.5763087 0.61398786 0.6533151 0.69455475 0.7379814 0.78392386 0.83274543 0.8848696 0.940776 1.0010643 1.0664072 1.1376429 1.2157465 1.301872 1.3973454 1.5035845 1.6219076 1.7531534 1.8970121 2.0512605 2.2115195 2.3720992 2.5276737 2.6745286 2.8108969 2.936383 3.0514205 3.156852 3.253591 3.342475 3.424364 3.4999318 3.5698152 3.634549 3.6945717 3.7502887 3.8020425 3.8501134 3.89477 3.9362242 3.9746735 4.010285 4.0432086 4.0735765 4.1014957 4.127078 4.150403 4.171556 4.190598 4.2075953 4.222597 4.2356467 4.2467847 4.256043 4.2634444 4.269012 4.272761 4.274701 4.275 4.274875 4.273605 4.2709923 4.267074 4.2618866 4.255467 4.2478514 4.2390766 4.2291794 4.218197 4.206165 4.19312 4.1790977 4.1641345 4.148265 4.131524 4.1139464 4.095566 4.076416 4.0565295 4.035939 4.014676 3.9927723 3.970258 3.9471633 3.9235175 3.899349 3.8746862 3.8495567 3.8239868 3.7980027 3.77163 3.744893 3.717816 3.6904228 3.6627355 3.6347764 3.6065667 3.5781276 3.5494788 3.5206401 3.4916303 3.4624677 3.4331698 3.4037538 3.3742359 3.3446321 3.3149579 3.2852278 3.2554564 3.225657 3.1958427 3.1660266 3.1362205 3.1064363 3.076685 3.0469773 3.0173235 2.9877336 2.9582171 2.9287827 2.899439 2.8701944 2.8410568 2.8120334 2.7831314 2.7543573 2.725718 2.6972191 2.6688666 2.640666 2.6126223 2.5847402 2.5570247 2.5294797 2.5021098 2.4749181 2.4479089 2.421085 2.3944492 2.3680053 2.3417554 2.3157022 2.2898476 2.2641943 2.2387435 2.2134974 2.1884577 2.1636252 2.1390018 2.1145885 2.090386 2.066395 2.0426166 2.0190513 1.9956994 1.9725614 1.9496374 1.9269277 1.904432 1.8821508 1.8600833 1.8382297 1.8165895 1.7951623 1.7739477 1.7529451 1.7321538 1.7115731 1.6912024 1.6710408 1.6510874 1.6313415 1.6118019 1.5924675 1.5733376 1.5544108 1.5356861 1.5171623 1.4988382 1.4807124 1.4627839 1.4450512 1.4275131 1.4101682 1.393015 1.3760523 1.3592784 1.3426923 1.3262922 1.3100767 1.2940444 1.2781937 1.2625232 1.2470313 1.2317165 1.2165774 1.2016122 1.1868197 1.1721979 1.1577457 1.1434612 1.1293432 1.1153897 1.1015996 1.087971 1.0745023 1.0611924 1.0480393 1.0350416 1.0221977 1.0095062 0.99696547 0.98457396 0.97233015 0.9602325 0.94827956 0.9364698 0.92480165 0.9132737 0.90188444 0.89063233 0.879516 0.8685339 0.8576847 0.8469668 0.8363789 0.8259194 0.8155871 0.80538046 0.79529816 0.7853387 0.77550083 0.7657832 0.7561843 0.7467029 0.7373377 0.7280873 0.71895045 0.70992583 0.70101213 0.6922081 0.68351245 0.67492396 0.6664414 0.6580635 0.64978904 0.6416169 0.6335457 0.62557447 0.6177019 0.6099268 0.6022482 0.59466475 0.5871755 0.57977915 0.5724748 0.5652612 0.5581373 0.5511021 0.54415447 0.5372933 0.53051776 0.5238266 0.5172189 0.51069367 0.50424993 0.49788663 0.4916028 0.48539755 0.47926986 0.4732188 0.46724346 0.4613429 0.45551622 0.44976252 0.44408092 0.4384705 0.4329304 0.4274598 0.4220578 0.4167236 0.41145635 0.4062552 0.40111938 0.39604804 0.39104044 0.38609576 0.38121322 0.37639207 0.37163156 0.3669309 0.3622894 0.3577063 0.3531809 0.3487124 0.3443002 0.3399436 0.3356418 0.33139426 0.32720017 0.323059 0.31896996 0.3149325 0.31094596 0.30700964 0.303123 0.29928538 0.29549617 0.29175475 0.28806055 0.28441295 0.28081143 0.27725536 0.27374417 0.27027732 0.26685426 0.2634744 0.26013726 0.25684226 0.25358889 0.2503766 0.24720493 0.24407333 0.2409813 0.23792836 0.234914 0.23193775 0.22899914 0.22609767 0.2232329 0.22040434 0.21761155 0.21485409 0.2121315 0.20944336 0.20678921 0.20416865 0.20158124 0.19902657 0.19650422 0.19401379 0.19155487 0.18912707 0.18673 0.18436328 0.18202649 0.1797193 0.17744131 0.17519216 0.17297149 0.17077892 0.16861412 0.16647673 0.1643664 0.1622828 0.16022557 0.15819441 0.15618896 0.15420891 0.15225394 0.15032373 0.14841798 0.14653637 0.14467858 0.14284432 0.1410333 0.13924523 0.13747981 0.13573676 0.13401578 0.13231662 0.13063899 0.1289826 0.1273472 0.12573253 0.12413832 0.12256431 0.12101024 0.119475864 0.11796094 0.11646521 0.11498843 0.113530375 0.112090796 0.110669464 0.10926614 0.10788061 0.10651263 0.105161995 0.10382848 0.10251187 0.10121194 0.09992849 0.09866132 0.0974102 0.09617494 0.09495534 0.09375121 0.09256233 0.09138853 0.09022961 0.08908538 0.08795565 0.08684025 0.08573899 0.084651686 0.08357817 0.082518265 0.08147179 0.08043859 0.079418495 0.078411326 0.07741693 0.076435134 0.0754658 0.07450874 0.07356382 0.07263089 0.07170978 0.07080035 0.06990246 0.06901594 0.06814067 0.0672765 0.06642328 0.06558088 0.06474917 0.063928 0.06311724 0.062316768 0.061526444 0.06074614 0.059975732 0.05921509 0.058464095 0.057722624 0.056990556 0.056267772 0.05555415 0.05484958 0.054153945 0.053467132 0.052789025 0.05211952 0.051458508 0.050805874 0.05016152

</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="4.275" PeakHeight="247.576" Num="5" zHalfNm="215.744" Error="0.779">
-74.84 18.265 -11.095 4.056 -0.462
</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="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="-987.49927" C="0.19182673" Error="0.0145"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6549.0" A="9.3535338E10" B="-2.8748622E7" C="2209.0293" Error="0.0145"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6552.0" A="-2.6786893E11" B="8.162068E7" C="-6217.3945" Error="0.00295"/>
<QuasiParabolic ID="5" StartDistance="6552.0" EndDistance="6556.0" A="6.7549591E12" B="-2.06209971E9" C="157375.44" Error="0.0148"/>
<QuasiParabolic ID="6" StartDistance="6556.0" EndDistance="6560.0" A="1.48714698E12" B="-4.55079584E8" C="34814.406" Error="0.0136"/>
<QuasiParabolic ID="7" StartDistance="6560.0" EndDistance="6565.0" A="6.1827606E12" B="-1.88666906E9" C="143929.47" Error="0.00472"/>
<QuasiParabolic ID="8" StartDistance="6565.0" EndDistance="6572.0" A="1.35561394E13" B="-4.1329385E9" C="315008.62" Error="0.0159"/>
<QuasiParabolic ID="9" StartDistance="6572.0" EndDistance="6582.0" A="5.8966827E13" B="-1.79523809E10" C="1366396.5" Error="0.0193"/>
<QuasiParabolic ID="10" StartDistance="6582.0" EndDistance="6597.0" A="-2.94093649E13" B="8.9015214E9" C="-673553.56" Error="0.00602"/>
<QuasiParabolic ID="11" StartDistance="6597.0" EndDistance="6617.576" A="-1.53399392E13" B="4.6361206E9" C="-350270.12" Error="0.00301"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="247.576" PeakDensity="226744.73" PeakScaleHeight="24.482" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
