<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 00:30:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.19 (139) 00:30:00</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">
FF202613905190030001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.411" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.707" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="267.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="267.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="302.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="279.148" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="254.505" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.762" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.282" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.377" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.877" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.400" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.620" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
267.500 270.000 270.000 272.500 272.500 275.000 275.000 277.500 277.500 277.500 280.000 282.500 285.000 287.500 287.500 290.000 297.500 300.000 300.000 302.500 307.500 312.500 317.500 322.500 330.286 340.519 354.568 375.054 407.721
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 90 93 87 93 90 93 90 93 93 93 90 93 93 93 93 84 87 81 78 81 81 78 75 66 66 78 81 69
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="481">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.294 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.588 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.882 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 279.148 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0
</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 0.35257575 0.35171902 0.35071892 0.34957823 0.34822705 0.34667096 0.34491634 0.34297046 0.34084123 0.33846867 0.33593324 0.33317873 0.33021992 0.32700893 0.32356703 0.31991675 0.31602296 0.31185907 0.30746225 0.30276603 0.29777324 0.292474 0.28692016 0.2809359 0.2746523 0.2679088 0.2607797 0.25321192 0.24507944 0.23649497 0.22726431 0.21738632 0.2068255 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 0.20174816 0.2059913 0.21023442 0.21447754 0.21872067 0.2229638 0.22720692 0.23145005 0.23569317 0.23993629 0.24417943 0.24842255 0.25266567 0.2569088 0.26115194 0.26539505 0.26963818 0.27388132 0.27812442 0.28236756 0.2866107 0.2908538 0.29509693 0.29934007 0.30358317 0.3078263 0.31206945 0.31631255 0.3205557 0.32479882 0.32904193 0.33328506 0.3375282 0.3417713 0.34601444 0.35025758 0.354 0.3570798 0.38476637 0.4152006 0.44819203 0.4834921 0.52086025 0.5600711 0.6009813 0.64349586 0.6875712 0.73321193 0.7804608 0.8293784 0.8800571 0.93259454 0.9871124 1.0437409 1.1026144 1.1638764 1.227674 1.2941216 1.3633729 1.4355341 1.5106782 1.5888802 1.6701059 1.7542946 1.8413038 1.9308668 2.022646 2.116159 2.2108688 2.3061028 2.4011707 2.4953635 2.5879953 2.6784198 2.7660768 2.8505328 2.9313798 3.0083852 3.0813632 3.1501896 3.2148314 3.2752707 3.3315554 3.3837378 3.4318736 3.4760644 3.5163813 3.552906 3.5857303 3.614929 3.6405723 3.6627254 3.681445 3.6967812 3.7087739 3.7174544 3.7228465 3.7249641 3.725 3.724266 3.7215707 3.7169604 3.710505 3.7022738 3.6923368 3.680764 3.6676247 3.652988 3.6369221 3.619495 3.6007729 3.5808215 3.5597057 3.5374882 3.5142312 3.4899952 3.464839 3.43882 3.4119945 3.3844163 3.356139 3.3272128 3.2976878 3.2676115 3.23703 3.2059882 3.1745284 3.1426923 3.1105196 3.078048 3.0453146 3.0123537 2.9791994 2.9458833 2.9124365 2.8788877 2.845265 2.8115947 2.7779021 2.7442112 2.7105448 2.6769242 2.6433702 2.6099017 2.576537 2.5432932 2.5101867 2.4772327 2.4444454 2.4118383 2.3794239 2.347214 2.3152196 2.2834508 2.2519174 2.2206275 2.1895897 2.1588116 2.1283 2.0980608 2.0681002 2.0384233 2.0090349 1.979939 1.9511396 1.92264 1.894443 1.8665515 1.8389674 1.8116927 1.7847289 1.7580769 1.731738 1.7057126 1.680001 1.6546034 1.6295196 1.6047493 1.5802919 1.5561465 1.5323124 1.5087882 1.4855727 1.4626646 1.4400622 1.4177636 1.3957673 1.3740711 1.3526732 1.3315711 1.3107626 1.2902457 1.2700177 1.2500762 1.2304186 1.2110423 1.1919447 1.1731231 1.1545748 1.1362967 1.1182864 1.1005409 1.0830572 1.0658325 1.0488638 1.0321484 1.015683 0.99946505 0.9834913 0.9677589 0.95226485 0.93700624 0.92198 0.90718335 0.8926132 0.8782667 0.86414087 0.8502328 0.8365396 0.8230585 0.80978644 0.7967207 0.7838584 0.7711968 0.75873303 0.7464643 0.734388 0.7225013 0.7108015 0.699286 0.68795204 0.6767971 0.6658186 0.6550138 0.64438033 0.63391566 0.6236172 0.61348253 0.60350925 0.593695 0.58403724 0.5745337 0.56518215 0.55598015 0.5469255 0.53801596 0.5292493 0.5206234 0.51213604 0.5037851 0.49556848 0.48748413 0.47952998 0.47170404 0.46400434 0.45642886 0.44897568 0.4416429 0.4344287 0.42733112 0.42034838 0.41347867 0.40672022 0.40007126 0.3935301 0.387095 0.3807643 0.37453637 0.3684095 0.36238217 0.35645276 0.35061973 0.34488153 0.33923665 0.3336836 0.32822093 0.32284716 0.3175609 0.31236073 0.30724528 0.3022132 0.29726315 0.29239377 0.28760383 0.282892 0.278257 0.2736977 0.26921278 0.26480106 0.2604614 0.2561926 0.2519935 0.24786301 0.24380001 0.2398034 0.2358721 0.23200507 0.22820127 0.22445965 0.22077923 0.21715899 0.21359797 0.2100952 0.20664975 0.20326068 0.19992705 0.19664799 0.1934226 0.19025002 0.18712938 0.18405981 0.18104053 0.17807068 0.17514947 0.1722761 0.16944979 0.16666979 0.16393533 0.16124567 0.15860008 0.15599783 0.15343824 0.15092058 0.14844419 0.14600839 0.1436125 0.14125589 0.1389379 0.13665792 0.13441533 0.1322095 0.13003983 0.12790573 0.12580663 0.12374195 0.12171113 0.119713604 0.11774885 0.11581631 0.113915466 0.1120458 0.1102068 0.10839796 0.1066188 0.104868814 0.103147544 0.101454504 0.09978924 0.0981513 0.09654023 0.094955586 0.09339694 0.09186387 0.090355955 0.08887278 0.087413944 0.085979044 0.08456769 0.08317949 0.08181407 0.08047105 0.07915008 0.07785079 0.07657281 0.07531581 0.07407944 0.072863355 0.07166723 0.07049073 0.069333546 0.06819535 0.06707583 0.0659747 0.06489163 0.06382634 0.06277853 0.06174792 0.060734227 0.059737172 0.05875648 0.05779189 0.056843128 0.05590994 0.05499207 0.054089267 0.05320128 0.05232787 0.0514688 0.05062383

</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="3.725" PeakHeight="279.148" Num="5" zHalfNm="254.505" Error="1.949">
-62.817 4.644 -3.4 1.85 -0.543
</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="6516.294" A="-1.15434226E11" B="3.5627848E7" C="-2748.937" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.294" EndDistance="6552.588" A="0.0" B="270.64725" C="-0.0014990364" Error="0.00488"/>
<QuasiParabolic ID="3" StartDistance="6552.588" EndDistance="6554.0" A="-1.28416652E12" B="3.91809216E8" C="-29885.965" Error="0.0099"/>
<QuasiParabolic ID="4" StartDistance="6554.0" EndDistance="6579.0" A="5.1094282E10" B="-1.5655196E7" C="1199.2046" Error="0.0199"/>
<QuasiParabolic ID="5" StartDistance="6579.0" EndDistance="6588.0" A="-1.27744584E10" B="3760745.5" C="-276.39517" Error="0.0025"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6591.0" A="8.4231649E12" B="-2.55724083E9" C="194092.28" Error="0.0177"/>
<QuasiParabolic ID="7" StartDistance="6591.0" EndDistance="6597.0" A="3.57933698E12" B="-1.08740992E9" C="82589.4" Error="0.0172"/>
<QuasiParabolic ID="8" StartDistance="6597.0" EndDistance="6606.0" A="7.6366705E12" B="-2.31746406E9" C="175817.69" Error="0.00359"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6626.0" A="1.88316322E13" B="-5.7067955E9" C="432352.03" Error="0.0161"/>
<QuasiParabolic ID="10" StartDistance="6626.0" EndDistance="6637.0" A="-1.91740615E13" B="5.7648901E9" C="-433304.9" Error="0.00417"/>
<QuasiParabolic ID="11" StartDistance="6637.0" EndDistance="6649.148" A="-2.36859771E13" B="7.1245148E9" C="-535732.56" Error="1.86E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.882" Depth="0.154"/>
<TopsideChapman PeakHeight="279.148" PeakDensity="172154.16" PeakScaleHeight="18.877" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
