<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-25 -145 21:15:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.25 (145) 21:15:00</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">
FF202614505252115001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.425" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.726" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.216" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="197.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="197.500" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="250.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.639" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="227.887" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="197.960" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.427" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.356" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.458" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.875" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.990" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="112">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 197.500 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.208 200.417 200.625 200.833 201.042 201.250 201.458 201.667 201.875 202.083 202.292 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 206.250 207.500 207.500 207.500 207.500 207.500 207.500 207.500 208.333 209.167 210.000 210.000 210.000 210.500 211.000 211.500 212.000 212.500 212.500 212.500 213.125 213.750 214.375 215.000 215.000 215.833 216.667 217.500 217.500 220.000 220.000 220.000 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 230.000 232.500 232.500 235.000 235.000 235.000 237.500 237.500 240.000 240.000 242.500 245.000 245.000 245.000 247.500 247.500 250.000 250.000 255.000 257.500 257.500 260.000 262.500 265.000 267.500 270.000 273.472 277.469 282.122 287.606 294.166 302.152 312.086 324.780 341.571
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 60 57 0 0 0 0 33 0 0 0 0 0 0 0 0 0 0 0 0 72 75 87 84 72 69 69 0 0 69 81 0 66 66 57 57 57 54 0 0 0 51 0 0 0 0 0 0 72 0 0 0 0 0 72 72 0 0 75 75 72 0 75 0 0 75 78 75 66 66 42 45 45 48 60 63 87 84 96 90 75 75 72 72 78 81 99 93 93 90 90 93 99 99 99 96 99 93 87 0 84 81 84 84 81 87 75 75 93 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 9.375 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 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="522">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.957 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 130.41667 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 150.83333 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 227.887 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.20301437 0.27510208 0.33563697 0.38383365 0.42358658 0.45731065 0.4864315 0.51183945 0.5341181 0.55367786 0.57080585 0.58572745 0.59860015 0.6095557 0.6186852 0.62606645 0.63175404 0.6357883 0.63819844 0.639 0.6385746 0.63732594 0.63529074 0.6323913 0.6285649 0.6239573 0.6184385 0.61199933 0.60465515 0.596364 0.5870487 0.5766985 0.56527144 0.55261225 0.5387413 0.52347505 0.5067422 0.488308 0.46802205 0.44552895 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.434 0.43567348 0.4457143 0.4557551 0.4657959 0.47583672 0.48587754 0.49591836 0.5059592 0.516 0.5260408 0.5360816 0.54612243 0.55616325 0.5662041 0.5762449 0.5862857 0.59632653 0.60636735 0.61640817 0.626449 0.6364898 0.639 0.6928677 0.75395447 0.81090283 0.866796 0.9231771 0.9810848 1.0413668 1.1048026 1.1722068 1.2444645 1.3226231 1.4078807 1.5016948 1.6057998 1.7222651 1.8533716 2.0014446 2.1680357 2.3529596 2.5528371 2.7608342 2.9686468 3.1690202 3.3575234 3.5323894 3.6935627 3.8417506 3.978101 4.103702 4.219671 4.326932 4.426324 4.5185475 4.6042194 4.6838727 4.7579446 4.826853 4.8909063 4.9504147 5.005625 5.056754 5.1040096 5.1475472 5.187529 5.2240763 5.25731 5.287329 5.3142223 5.338063 5.3589187 5.376847 5.39189 5.4040923 5.4134817 5.4200845 5.4239144 5.425 5.4249873 5.4237585 5.420567 5.415469 5.4085217 5.3997808 5.389305 5.3771505 5.3633747 5.3480344 5.331187 5.312887 5.293192 5.2721562 5.249834 5.2262797 5.201546 5.1756854 5.148749 5.120787 5.09185 5.0619855 5.031241 4.999663 4.967297 4.934188 4.9003778 4.86591 4.8308244 4.7951617 4.75896 4.7222576 4.6850905 4.647495 4.609504 4.571152 4.532471 4.493492 4.454245 4.414759 4.375062 4.335181 4.2951427 4.254971 4.2146907 4.174325 4.133896 4.093425 4.0529323 4.012438 3.9719608 3.9315188 3.891129 3.8508081 3.8105717 3.7704349 3.730412 3.6905165 3.6507614 3.611159 3.571721 3.5324588 3.4933825 3.454502 3.4158273 3.3773665 3.3391287 3.3011212 3.2633517 3.225827 3.1885536 3.151538 3.114785 3.0783007 3.0420897 3.0061564 2.9705055 2.9351401 2.9000642 2.8652809 2.8307931 2.7966034 2.7627144 2.7291276 2.6958456 2.6628695 2.6302009 2.5978408 2.5657902 2.5340497 2.5026202 2.4715018 2.4406948 2.4101992 2.3800147 2.3501413 2.3205783 2.2913256 2.2623818 2.2337468 2.2054193 2.1773982 2.1496825 2.1222708 2.0951622 2.0683546 2.041847 2.0156379 1.9897252 1.9641075 1.9387828 1.9137496 1.8890055 1.8645489 1.8403777 1.8164899 1.7928833 1.7695558 1.7465051 1.7237294 1.701226 1.6789929 1.6570278 1.6353283 1.6138921 1.5927169 1.5718004 1.55114 1.5307335 1.5105783 1.4906722 1.4710128 1.4515977 1.4324242 1.4134902 1.394793 1.3763304 1.3580998 1.340099 1.3223253 1.3047765 1.2874502 1.2703439 1.2534553 1.2367818 1.2203214 1.2040715 1.1880298 1.172194 1.1565616 1.1411306 1.1258985 1.110863 1.0960218 1.0813727 1.0669137 1.0526422 1.0385562 1.0246534 1.0109318 0.99738914 0.9840232 0.97083193 0.95781326 0.9449651 0.93228537 0.91977197 0.9074229 0.89523613 0.88320976 0.8713417 0.85963005 0.8480729 0.83666825 0.8254143 0.81430906 0.80335075 0.79253745 0.78186744 0.7713389 0.76094997 0.7506989 0.740584 0.73060346 0.72075564 0.7110388 0.70145136 0.69199157 0.68265784 0.6734485 0.66436195 0.6553967 0.6465511 0.63782364 0.6292128 0.62071705 0.6123349 0.6040649 0.59590554 0.5878554 0.57991314 0.5720772 0.5643463 0.55671906 0.54919416 0.5417701 0.53444576 0.52721965 0.52009064 0.51305735 0.50611854 0.49927297 0.49251944 0.48585668 0.47928354 0.47279882 0.46640134 0.46008998 0.45386356 0.44772097 0.4416611 0.43568286 0.42978516 0.4239669 0.4182271 0.41256464 0.40697852 0.40146774 0.3960313 0.39066815 0.38537738 0.38015798 0.375009 0.36992955 0.36491865 0.35997543 0.35509893 0.35028827 0.3455426 0.34086105 0.33624274 0.33168682 0.32719246 0.32275882 0.31838512 0.31407055 0.3098143 0.3056156 0.30147365 0.29738772 0.29335704 0.28938088 0.2854585 0.28158918 0.27777222 0.27400687 0.2702925 0.26662835 0.2630138 0.2594482 0.2559308 0.25246108 0.24903826 0.24566181 0.24233106 0.2390454 0.23580423 0.23260695 0.22945295 0.22634166 0.22327253 0.22024494 0.21725836 0.21431224 0.21140602 0.20853917 0.20571116 0.20292145 0.20016953 0.19745491 0.19477706 0.1921355 0.18952972 0.18695925 0.18442361 0.18192235 0.17945497 0.17702103 0.17462008 0.17225166 0.16991535 0.16761069 0.16533728 0.16309468 0.16088249 0.15870027 0.15654765 0.15442419 0.15232953 0.15026326 0.14822501 0.14621438 0.14423102 0.14227456 0.1403446 0.13844083 0.13656285 0.13471036 0.13288297 0.13108036 0.12930219 0.12754814 0.12581788 0.12411107 0.12242741 0.12076658 0.11912828 0.11751219 0.11591802 0.11434546 0.112794235 0.11126405 0.10975461 0.108265646 0.106796876 0.10534802 0.10391882 0.10250901 0.10111831 0.09974648 0.098393254 0.09705838 0.095741615 0.09444271 0.09316142 0.09189751 0.090650745 0.08942089 0.08820772 0.087011 0.085830525 0.08466605 0.08351738 0.08238428 0.08126656 0.080164 0.079076394 0.07800355 0.076945245 0.07590131 0.074871525 0.07385571 0.072853684 0.071865246 0.07089022 0.069928415 0.068979666 0.06804378 0.0671206 0.066209935 0.065311626 0.0644255 0.0635514 0.062689155 0.061838612 0.060999606 0.06017198 0.059355587 0.058550265 0.057755873 0.056972254 0.056199268 0.055436768 0.054684613 0.05394266 0.053210776 0.052488822 0.051776662 0.051074162 0.050381195

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.639" PeakHeight="110.0" Num="3" Error="0.0">
-24.089 5.698 -0.652
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.639" EndFrequency="5.425" PeakHeight="227.887" Num="5" zHalfNm="197.96" Error="0.914">
-66.185 15.352 -8.219 2.186 0.229
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.9697" EndDistance="6480.001" A="-1.7838333E12" B="5.5056582E8" C="-42481.523" Error="0.0399"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6500.417" A="-9.3554357E11" B="2.88748032E8" C="-22279.531" Error="9.09E-4"/>
<QuasiParabolic ID="2" StartDistance="6500.417" EndDistance="6520.833" A="0.0" B="3870.6948" C="-0.40692613" Error="0.00899"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6523.0" A="-6.4367703E12" B="1.97332314E9" C="-151240.38" Error="0.0387"/>
<QuasiParabolic ID="4" StartDistance="6523.0" EndDistance="6540.0" A="4.92633031E11" B="-1.51283232E8" C="11614.622" Error="0.0375"/>
<QuasiParabolic ID="5" StartDistance="6540.0" EndDistance="6544.0" A="2.37323451E13" B="-7.2582287E9" C="554959.1" Error="0.0332"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6546.0" A="-1.55554624E13" B="4.7490473E9" C="-362467.28" Error="0.0179"/>
<QuasiParabolic ID="7" StartDistance="6546.0" EndDistance="6555.0" A="2.1853127E13" B="-6.6804024E9" C="510542.94" Error="0.0239"/>
<QuasiParabolic ID="8" StartDistance="6555.0" EndDistance="6562.0" A="1.20687583E14" B="-3.6835844E10" C="2810729.0" Error="0.0295"/>
<QuasiParabolic ID="9" StartDistance="6562.0" EndDistance="6597.887" A="-3.14051532E13" B="9.5197604E9" C="-721395.56" Error="0.0303"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.205"/>
<TopsideChapman PeakHeight="227.887" PeakDensity="365144.22" PeakScaleHeight="22.875" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
