<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-24 -297 07:25:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.24 (297) 07:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629710240725001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.338" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.107" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="255.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="255.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="333.052" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.600" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.600" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="280.498" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.837" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.260" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.107" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.867" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.609" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="40.100" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.990" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="102">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
255.000 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.955 258.409 258.864 259.318 259.773 260.227 260.682 261.136 261.591 262.045 262.500 262.500 263.125 263.750 264.375 265.000 265.000 265.000 267.500 267.500 267.500 268.333 269.167 270.000 270.000 270.000 270.000 272.500 272.500 272.500 272.500 272.500 272.500 273.333 274.167 275.000 276.250 277.500 277.500 278.500 279.500 280.500 281.500 282.500 282.500 282.500 282.500 285.000 285.000 285.000 285.000 285.833 286.667 287.500 290.000 290.000 290.000 292.500 292.500 292.500 295.000 295.000 297.500 297.500 300.000 300.000 300.833 301.667 302.500 305.000 305.000 307.500 307.500 310.000 310.000 312.500 312.500 315.000 315.000 317.500 320.000 321.250 322.500 325.000 327.500 327.500 330.000 333.052 336.421 340.159 344.331 349.016 354.316 360.360
</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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 72 0 0 0 0 0 0 0 0 0 0 0 0 0 81 0 69 0 0 0 0 0 0 0 93 72 0 84 84 0 84 72 0 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 78 0 0 0 0 0 0
</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 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 9.375 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="530">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.21634 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 172.43266 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 203.649 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 280.498 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0
</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 0.35354906 0.3529118 0.35205317 0.35097662 0.3496128 0.3479691 0.3461267 0.34402186 0.34166604 0.33900288 0.33605042 0.33282852 0.32935864 0.32553726 0.3213997 0.31698352 0.31221393 0.3070361 0.30152228 0.29562327 0.28932 0.2824727 0.27526438 0.2674366 0.2591058 0.25007254 0.24034165 0.22990167 0.21860094 0.20635775 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 0.20279883 0.20773216 0.21266547 0.21759878 0.2225321 0.2274654 0.23239872 0.23733203 0.24226536 0.24719867 0.25213197 0.2570653 0.26199862 0.26693192 0.27186525 0.27679855 0.28173187 0.28666517 0.2915985 0.29653183 0.30146512 0.30639845 0.31133175 0.31626508 0.3211984 0.3261317 0.33106503 0.33599833 0.34093165 0.34586495 0.35079828 0.354 0.36592096 0.39828125 0.42961913 0.4608567 0.4925359 0.52499837 0.55851865 0.5933233 0.62961733 0.6675756 0.7073728 0.74914867 0.7930668 0.8392542 0.8878184 0.93887097 0.9924783 1.0487096 1.1075656 1.1690431 1.2331185 1.2997044 1.3687263 1.4400562 1.5135459 1.5890417 1.6663854 1.7454016 1.8259261 1.9077913 1.9908282 2.074902 2.1598623 2.2455554 2.3318913 2.4187284 2.5059834 2.5935423 2.681303 2.7691903 2.8571343 2.945048 3.0328467 3.1204455 3.2077868 3.2947748 3.3813484 3.4674056 3.5528703 3.6376586 3.721653 3.8047798 3.8868906 3.9678996 4.0476694 4.1260657 4.202934 4.278136 4.3515077 4.422854 4.4920015 4.558763 4.622907 4.684236 4.742526 4.797549 4.849063 4.8968434 4.9406533 4.9802756 5.0154853 5.046086 5.071888 5.0927353 5.1084895 5.1190486 5.124342 5.125 5.1247044 5.122382 5.1178117 5.111066 5.1022186 5.0913434 5.0785146 5.0638056 5.0472903 5.0290413 5.009131 4.987631 4.9646125 4.9401445 4.9142966 4.887136 4.858729 4.82914 4.798434 4.7666717 4.7339144 4.7002215 4.6656504 4.630257 4.5940967 4.5572214 4.519683 4.4815307 4.4428134 4.403577 4.363867 4.3237267 4.2831974 4.24232 4.2011333 4.1596746 4.1179795 4.0760827 4.0340176 3.991815 3.9495058 3.907119 3.864682 3.8222218 3.7797632 3.7373304 3.6949465 3.6526332 3.6104114 3.5683005 3.5263195 3.4844859 3.4428165 3.401327 3.3600326 3.318947 3.2780838 3.2374554 3.1970735 3.1569488 3.1170921 3.0775125 3.038219 2.9992201 2.9605231 2.9221356 2.8840637 2.8463137 2.808891 2.7718008 2.7350473 2.698635 2.6625674 2.626848 2.5914793 2.556464 2.5218046 2.4875023 2.4535594 2.4199765 2.3867548 2.353895 2.3213973 2.2892623 2.2574894 2.2260785 2.1950293 2.164341 2.1340125 2.104043 2.0744312 2.0451756 2.016275 1.9877272 1.9595308 1.9316838 1.9041842 1.8770299 1.8502185 1.8237479 1.7976154 1.7718188 1.7463553 1.7212225 1.6964176 1.6719378 1.6477803 1.6239424 1.6004211 1.5772134 1.5543164 1.5317272 1.5094427 1.4874598 1.4657755 1.4443866 1.4232903 1.4024831 1.3819622 1.3617243 1.3417662 1.322085 1.3026774 1.2835404 1.2646706 1.2460653 1.227721 1.2096349 1.1918037 1.1742243 1.1568938 1.1398091 1.1229671 1.1063647 1.0899992 1.0738673 1.0579662 1.042293 1.0268445 1.0116181 0.9966109 0.98181987 0.96724224 0.9528753 0.9387162 0.9247621 0.91101044 0.8974584 0.8841033 0.8709425 0.85797334 0.8451933 0.83259976 0.82019013 0.807962 0.79591274 0.78404 0.7723412 0.7608141 0.7494561 0.7382651 0.72723854 0.7163743 0.70566994 0.6951233 0.68473214 0.67449427 0.6644075 0.6544697 0.6446788 0.6350326 0.62552917 0.61616635 0.6069422 0.5978547 0.5889019 0.5800818 0.57139266 0.5628325 0.5543994 0.5460915 0.5379071 0.5298444 0.5219016 0.514077 0.5063688 0.49877536 0.49129498 0.48392606 0.47666693 0.469516 0.4624717 0.45553246 0.44869673 0.44196302 0.4353298 0.4287956 0.422359 0.41601852 0.40977278 0.40362036 0.3975599 0.39159003 0.38570943 0.3799168 0.37421077 0.36859015 0.3630536 0.3575999 0.35222787 0.34693626 0.34172386 0.33658955 0.33153212 0.32655042 0.3216434 0.3168099 0.31204882 0.3073591 0.30273968 0.2981895 0.29370755 0.28929278 0.28494427 0.28066093 0.27644184 0.27228606 0.26819262 0.2641606 0.2601891 0.25627714 0.25242394 0.24862856 0.24489014 0.24120784 0.23758082 0.23400825 0.23048933 0.22702324 0.22360921 0.22024645 0.21693419 0.21367167 0.21045816 0.20729291 0.20417522 0.20110437 0.19807965 0.19510037 0.19216585 0.18927543 0.18642844 0.18362424 0.18086217 0.17814162 0.17546195 0.17282255 0.17022283 0.16766219 0.16514002 0.16265577 0.16020887 0.15779875 0.15542486 0.15308666 0.15078363 0.14851521 0.14628088 0.14408016 0.14191253 0.1397775 0.13767457 0.13560325 0.13356309 0.1315536 0.12957433 0.12762484 0.12570465 0.12381334 0.12195048 0.12011563 0.11830838 0.11652832 0.11477502 0.11304809 0.11134714 0.10967177 0.10802161 0.10639626 0.10479537 0.10321855 0.101665445 0.100135714 0.09862898 0.097144924 0.095683195 0.094243445 0.09282536 0.09142861 0.090052865 0.08869782 0.08736315 0.08604857 0.084753774 0.08347844 0.082222305 0.08098507 0.07976644 0.07856615 0.07738391 0.07621947 0.07507254 0.07394287 0.07283019 0.07173426 0.07065482 0.06959161 0.0685444 0.06751295 0.06649702 0.06549637 0.064510785 0.06354003 0.06258387 0.061642103 0.060714506 0.059800863 0.05890097 0.05801462 0.057141602 0.056281723 0.055434782 0.054600585 0.05377894 0.05296966 0.052172557 0.051387444 0.05061415

</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="5.125" PeakHeight="280.498" Num="5" zHalfNm="252.837" Error="1.388">
-76.609 -1.357 1.589 -1.157 0.685
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6511.216" A="-1.55820474E11" B="4.809274E7" C="-3710.7341" Error="0.00158"/>
<QuasiParabolic ID="2" StartDistance="6511.216" EndDistance="6542.433" A="0.0" B="-1568.0148" C="0.28084219" Error="0.0293"/>
<QuasiParabolic ID="3" StartDistance="6542.433" EndDistance="6570.0" A="6.8776772E10" B="-2.1092592E7" C="1617.2036" Error="0.0293"/>
<QuasiParabolic ID="4" StartDistance="6570.0" EndDistance="6572.0" A="-7.5834478E11" B="2.30694784E8" C="-17544.697" Error="9.28E-4"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6576.0" A="6.7381394E12" B="-2.0506455E9" C="156020.45" Error="0.0226"/>
<QuasiParabolic ID="6" StartDistance="6576.0" EndDistance="6578.0" A="-9.6320271E11" B="2.9161184E8" C="-22070.893" Error="0.00983"/>
<QuasiParabolic ID="7" StartDistance="6578.0" EndDistance="6587.0" A="4.4032527E12" B="-1.3400256E9" C="101951.414" Error="0.0085"/>
<QuasiParabolic ID="8" StartDistance="6587.0" EndDistance="6632.0" A="1.4093327E13" B="-4.28220698E9" C="325283.84" Error="0.0358"/>
<QuasiParabolic ID="9" StartDistance="6632.0" EndDistance="6645.0" A="-3.24578795E13" B="9.7561549E9" C="-733096.9" Error="0.00651"/>
<QuasiParabolic ID="10" StartDistance="6645.0" EndDistance="6650.498" A="-5.2081629E13" B="1.56624753E10" C="-1177515.2" Error="1.38E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="93.649" Depth="0.154"/>
<TopsideChapman PeakHeight="280.498" PeakDensity="325876.25" PeakScaleHeight="20.609" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
