<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 04:05:00.000"
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, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.26 (146) 04:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202614605260405001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.323" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.801" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.575" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="270.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="270.000" 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="3.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="325.619" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="288.445" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="260.807" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.733" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.476" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.166" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.816" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.290" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.310" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="51">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 270.833 271.667 272.500 273.333 274.167 275.000 275.000 276.250 277.500 280.000 280.000 280.000 281.250 282.500 283.750 285.000 285.000 287.500 287.500 290.000 290.000 292.500 292.500 295.000 295.000 297.500 297.500 300.000 301.250 302.500 305.000 305.735 306.538 307.421 308.394 309.474 310.678 312.030 313.557 315.297 317.298 319.623 322.357 325.619 329.579 334.486 340.728 348.935 360.206 376.653
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 0 0 0 0 0 78 78 0 69 66 54 57 0 54 0 78 69 69 69 66 69 66 69 66 66 66 66 66 0 66 54 54 0 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" >
-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 7.8125 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 10.9375 -1.5625 10.9375 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="510">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.33333 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.66667 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 288.445 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0
</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 0.35265058 0.35186794 0.350941 0.34979865 0.3485186 0.34703198 0.34541664 0.34353504 0.3415376 0.33936062 0.33694494 0.33437055 0.3315821 0.32853025 0.32536092 0.32190248 0.31824183 0.3143447 0.3101852 0.30580038 0.30112514 0.29623675 0.2910208 0.28546533 0.27958125 0.27332512 0.2667731 0.25976324 0.25232202 0.24442773 0.23596737 0.22701065 0.21738283 0.20716363 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 0.201375 0.2055 0.209625 0.21375 0.217875 0.222 0.226125 0.23025 0.234375 0.2385 0.242625 0.24675 0.250875 0.255 0.259125 0.26325 0.267375 0.2715 0.275625 0.27975 0.283875 0.288 0.292125 0.29625 0.300375 0.3045 0.308625 0.31275 0.316875 0.321 0.325125 0.32925 0.333375 0.3375 0.341625 0.34575 0.349875 0.354 0.38175097 0.40911567 0.43660402 0.46454006 0.49317098 0.52268547 0.55324686 0.58500373 0.6180793 0.6526068 0.68870264 0.72647566 0.76602125 0.8074345 0.8507895 0.89615726 0.9435764 0.9930581 1.0446206 1.0982106 1.1537817 1.211252 1.2704988 1.3313766 1.3937341 1.457379 1.5221103 1.5877341 1.654036 1.7207862 1.787778 1.8548248 1.9217138 1.9882537 2.054281 2.1196263 2.184117 2.2476363 2.310024 2.371168 2.4309359 2.4892387 2.5459569 2.6009924 2.654271 2.7056937 2.7551775 2.802662 2.8480606 2.8913114 2.932349 2.971115 3.0075502 3.0416076 3.0732214 3.102359 3.1289785 3.153029 3.174484 3.1933079 3.2094774 3.2229593 3.2337415 3.2418044 3.2471356 3.2497284 3.25 3.2497756 3.2482567 3.2453418 3.241076 3.2355049 3.2286737 3.2206278 3.211413 3.201074 3.1896558 3.1772034 3.1637604 3.1493707 3.1340773 3.1179223 3.1009476 3.083194 3.0647013 3.0455093 3.0256557 3.0051787 2.9841142 2.9624984 2.9403656 2.9177496 2.8946831 2.8711982 2.8473253 2.8230946 2.7985349 2.7736738 2.7485385 2.723155 2.6975484 2.671743 2.6457615 2.6196265 2.59336 2.5669818 2.5405118 2.5139697 2.4873726 2.4607387 2.434084 2.4074244 2.3807752 2.3541508 2.3275647 2.3010304 2.2745595 2.2481647 2.2218564 2.1956453 2.1695418 2.143555 2.117694 2.0919669 2.066382 2.0409465 2.0156677 1.9905516 1.9656048 1.9408327 1.9162408 1.891834 1.8676169 1.8435937 1.8197683 1.7961442 1.7727249 1.7495131 1.7265118 1.7037233 1.6811497 1.6587931 1.6366551 1.6147373 1.5930408 1.5715669 1.5503163 1.5292898 1.508488 1.4879112 1.4675596 1.4474332 1.4275321 1.407856 1.3884045 1.3691772 1.3501736 1.3313929 1.3128345 1.2944974 1.2763807 1.2584833 1.2408042 1.2233422 1.2060958 1.1890641 1.1722454 1.1556385 1.1392417 1.1230534 1.1070724 1.0912968 1.075725 1.0603552 1.0451858 1.0302151 1.0154413 1.0008625 0.98647684 0.97228265 0.95827794 0.94446087 0.9308296 0.9173822 0.9041167 0.89103127 0.878124 0.8653929 0.8528361 0.8404516 0.8282376 0.81619203 0.80431306 0.7925987 0.7810471 0.76965636 0.7584245 0.7473497 0.73643 0.72566354 0.71504843 0.70458287 0.694265 0.68409294 0.67406493 0.664179 0.65443355 0.64482665 0.6353566 0.62602156 0.61681986 0.6077497 0.5988094 0.5899973 0.58131164 0.57275075 0.56431305 0.5559968 0.5478004 0.53972226 0.5317608 0.52391446 0.51618165 0.5085608 0.5010504 0.49364898 0.48635498 0.47916698 0.4720835 0.4651031 0.45822433 0.45144582 0.44476613 0.4381839 0.4316978 0.4253064 0.4190085 0.41280267 0.40668768 0.4006622 0.39472502 0.38887486 0.38311046 0.37743068 0.37183422 0.36631998 0.36088675 0.35553336 0.35025868 0.3450616 0.339941 0.33489576 0.32992482 0.3250271 0.32020158 0.31544718 0.31076288 0.3061477 0.30160058 0.2971206 0.29270673 0.28835806 0.28407362 0.27985248 0.27569374 0.27159646 0.26755977 0.26358277 0.2596646 0.25580442 0.25200135 0.24825458 0.24456327 0.24092662 0.23734385 0.23381414 0.23033671 0.22691083 0.22353572 0.22021063 0.21693483 0.21370761 0.21052825 0.20739605 0.20431031 0.20127034 0.19827548 0.19532506 0.19241844 0.18955496 0.18673398 0.18395488 0.18121704 0.17851987 0.17586274 0.17324509 0.17066632 0.16812585 0.16562313 0.1631576 0.1607287 0.15833588 0.15597863 0.15365642 0.15136874 0.14911504 0.14689486 0.14470768 0.14255302 0.1404304 0.13833934 0.13627937 0.13425006 0.1322509 0.1302815 0.12834138 0.12643012 0.12454729 0.122692466 0.12086524 0.1190652 0.11729195 0.11554507 0.11382419 0.11212892 0.11045887 0.10881368 0.10719297 0.10559638 0.10402355 0.10247414 0.10094778 0.09944414 0.097962886 0.09650368 0.0950662 0.09365012 0.09225511 0.09088087 0.0895271 0.088193476 0.08687971 0.085585505 0.08431056 0.08305461 0.08181736 0.080598526 0.07939784 0.07821504 0.07704985 0.075902015 0.07477127 0.07365736 0.07256004 0.07147907 0.070414186 0.069365166 0.06833177 0.06731376 0.06631092 0.06532301 0.064349815 0.06339111 0.06244669 0.061516337 0.06059984 0.05969699 0.058807593 0.05793144 0.05706834 0.056218095 0.055380516 0.054555412 0.0537426 0.052941896 0.052153114 0.05137609 0.050610635

</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="3.25" PeakHeight="288.445" Num="5" zHalfNm="260.807" Error="0.857">
-68.126 2.718 -1.553 0.295 0.221
</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="6517.333" A="-1.09128319E11" B="3.368158E7" C="-2598.762" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6517.333" EndDistance="6554.667" A="0.0" B="231.7688" C="0.004476805" Error="0.0041"/>
<QuasiParabolic ID="3" StartDistance="6554.667" EndDistance="6556.0" A="-1.60186709E12" B="4.88628096E8" C="-37262.32" Error="0.00738"/>
<QuasiParabolic ID="4" StartDistance="6556.0" EndDistance="6562.0" A="1.72250776E11" B="-5.2591516E7" C="4014.3435" Error="0.0195"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6590.0" A="1.64579379E10" B="-5108177.0" C="396.2896" Error="0.0148"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6596.0" A="4.25586563E12" B="-1.29172659E9" C="98015.29" Error="0.0133"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6598.0" A="-2.60906385E11" B="7.7822224E7" C="-5801.328" Error="0.00704"/>
<QuasiParabolic ID="8" StartDistance="6598.0" EndDistance="6606.0" A="4.23892825E12" B="-1.28617728E9" C="97563.3" Error="0.00334"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6629.0" A="9.5658988E12" B="-2.89894477E9" C="219631.67" Error="0.0133"/>
<QuasiParabolic ID="10" StartDistance="6629.0" EndDistance="6644.0" A="-3.03844845E12" B="9.0384525E8" C="-67198.164" Error="0.00759"/>
<QuasiParabolic ID="11" StartDistance="6644.0" EndDistance="6658.445" A="-1.65364514E13" B="4.967061E9" C="-372979.0" Error="0.00318"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.0" Depth="0.154"/>
<TopsideChapman PeakHeight="288.445" PeakDensity="131048.39" PeakScaleHeight="20.816" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
