<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 11:10:00.000"
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="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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 65% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.08 (098) 11:10:00</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">
FF202609804081110001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="6.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.920" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.892" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.175" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.175" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="88" Val="6.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="256.227" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.339" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.175" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.175" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="191.464" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="156.316" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.125" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.914" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="5.400" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.656" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="56.690" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="48">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 228.000 228.500 229.000 229.500 230.000 230.500 231.000 231.500 232.000 232.500 233.000 233.500 234.000 234.500 235.000 235.500 236.000 236.500 237.000 237.500 237.500 237.500 238.281 239.063 239.844 240.625 241.406 242.188 242.969 243.750 244.531 245.313 246.094 246.875 247.656 248.507 249.449 250.498 251.672 252.997 254.502 256.227 258.225 260.566 263.347 266.702 270.833
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 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 0 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="512">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.675 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 116.63333 117.0 118.0 119.0 120.0 121.0 122.0 123.0 123.26667 124.0 125.0 126.0 127.0 128.0 129.0 129.9 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 191.464 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22744901 0.7328474 1.0718904 1.2763726 1.4359872 1.5695872 1.6849475 1.7861452 1.8756163 1.9549775 2.025294 2.0873978 2.1418598 2.1891234 2.229529 2.2633379 2.2907643 2.311944 2.327001 2.3360033 2.339 2.3361118 2.3273914 2.312795 2.2922945 2.265736 2.2330186 2.209 2.209 2.209 2.209 2.209 2.209 2.209 2.209 2.209 2.2233717 2.2429698 2.2625678 2.2821658 2.3017638 2.3213618 2.339 2.3466656 2.4225192 2.4979694 2.5740714 2.6515362 2.7308683 2.8123784 2.8962226 2.9823878 3.0706427 3.1606379 3.2518132 3.343573 3.4352188 3.52615 3.6158388 3.7038472 3.7898908 3.8738005 3.9554892 4.03494 4.1121955 4.187351 4.260494 4.3317375 4.401214 4.4690347 4.5353203 4.6001906 4.6637497 4.726094 4.787335 4.8475537 4.9068394 4.9652715 5.0229335 5.079895 5.1362143 5.191962 5.2472167 5.3020144 5.356424 5.4105024 5.464289 5.5178623 5.5712423 5.6244955 5.677666 5.7307873 5.783897 5.8370295 5.8902006 5.9433956 5.996591 6.0496597 6.1024175 6.1544604 6.205064 6.252913 6.295602 6.329089 6.347792 6.35 6.3496833 6.347421 6.343034 6.3365803 6.3281217 6.317718 6.30543 6.2913175 6.2754416 6.257862 6.2386394 6.217832 6.1955004 6.1717014 6.1464934 6.119933 6.0920773 6.0629807 6.032698 6.0012827 5.9687877 5.9352646 5.9007635 5.865334 5.8290253 5.7918835 5.7539554 5.715286 5.6759195 5.635898 5.5952644 5.554058 5.512319 5.4700856 5.4273944 5.3842816 5.340782 5.2969303 5.252758 5.2082977 5.163579 5.1186323 5.073486 5.0281672 4.9827027 4.937118 4.8914375 4.845685 4.7998834 4.7540545 4.708219 4.6623974 4.6166086 4.5708714 4.525203 4.4796214 4.434142 4.38878 4.3435507 4.298468 4.2535453 4.208795 4.16423 4.119861 4.0756993 4.031755 3.9880385 3.9445584 3.9013236 3.8583426 3.815623 3.7731721 3.7309966 3.6891031 3.647498 3.606186 3.5651727 3.5244632 3.4840617 3.4439723 3.4041991 3.3647454 3.325614 3.2868083 3.2483306 3.2101834 3.1723683 3.1348877 3.0977428 3.0609353 3.0244656 2.9883354 2.9525447 2.9170945 2.881985 2.8472161 2.8127882 2.7787008 2.7449539 2.7115464 2.6784785 2.6457486 2.6133566 2.581301 2.549581 2.5181952 2.4871423 2.456421 2.4260297 2.395967 2.366231 2.3368201 2.3077326 2.2789662 2.2505195 2.2223902 2.1945763 2.1670756 2.1398861 2.1130056 2.0864317 2.0601625 2.0341952 2.0085278 1.9831576 1.9580826 1.9333 1.9088076 1.8846029 1.8606833 1.8370465 1.8136897 1.7906106 1.7678065 1.745275 1.7230135 1.7010194 1.67929 1.6578231 1.6366159 1.6156658 1.5949702 1.5745268 1.5543327 1.5343857 1.514683 1.4952221 1.4760005 1.4570159 1.4382653 1.4197466 1.4014572 1.3833945 1.3655561 1.3479397 1.3305427 1.3133626 1.2963972 1.279644 1.2631006 1.2467647 1.2306337 1.2147057 1.198978 1.1834484 1.1681148 1.1529747 1.1380261 1.1232666 1.1086938 1.094306 1.0801005 1.0660756 1.0522289 1.0385584 1.0250618 1.0117373 0.99858266 0.98559594 0.97277504 0.96011806 0.9476229 0.93528765 0.9231104 0.91108924 0.8992222 0.88750744 0.87594306 0.8645272 0.85325813 0.842134 0.831153 0.82031333 0.8096133 0.79905117 0.7886252 0.7783337 0.76817507 0.7581476 0.7482496 0.73847955 0.72883576 0.71931666 0.70992076 0.70064646 0.6914922 0.68245655 0.6735379 0.6647349 0.656046 0.64746976 0.6390048 0.6306497 0.622403 0.6142634 0.6062296 0.5983001 0.59047365 0.5827489 0.5751246 0.5675995 0.5601722 0.5528416 0.5456064 0.5384653 0.53141725 0.524461 0.5175953 0.510819 0.5041311 0.4975303 0.49101555 0.48458573 0.47823974 0.47197652 0.465795 0.45969412 0.45367283 0.44773012 0.44186497 0.4360764 0.4303634 0.42472497 0.4191602 0.41366807 0.40824768 0.40289813 0.39761847 0.39240777 0.3872652 0.38218984 0.37718078 0.37223724 0.36735833 0.3625432 0.35779104 0.35310102 0.34847233 0.3439042 0.33939582 0.3349464 0.33055523 0.3262215 0.32194445 0.3177234 0.3135576 0.3094463 0.3053888 0.30138445 0.2974325 0.2935323 0.28968316 0.2858844 0.2821354 0.2784355 0.27478403 0.2711804 0.26762396 0.2641141 0.26065022 0.2572317 0.25385797 0.25052842 0.24724251 0.24399965 0.24079928 0.23764083 0.23452377 0.23144756 0.22841166 0.22541554 0.22245869 0.2195406 0.21666074 0.21381862 0.21101376 0.20824566 0.20551385 0.20281786 0.2001572 0.19753142 0.19494005 0.19238266 0.1898588 0.18736804 0.18490991 0.18248403 0.18008995 0.17772725 0.17539555 0.1730944 0.17082344 0.16858226 0.16637047 0.16418768 0.16203351 0.1599076 0.15780956 0.15573904 0.15369567 0.1516791 0.14968897 0.14772496 0.1457867 0.14387386 0.1419861 0.14012311 0.13828456 0.13647012 0.13467948 0.13291232 0.13116835 0.12944725 0.12774873 0.1260725 0.12441824 0.12278569 0.121174544 0.119584545 0.1180154 0.11646684 0.114938594 0.1134304 0.11194199 0.110473104 0.10902349 0.107592896 0.10618106 0.10478776 0.10341273 0.10205574 0.10071656 0.09939495 0.09809067 0.09680351 0.09553323 0.094279625 0.09304246 0.09182153 0.09061662 0.089427516 0.08825401 0.08709591 0.085953005 0.08482509 0.083711974 0.08261347 0.08152937 0.0804595 0.07940367 0.07836168 0.077333376 0.07631856 0.07531706 0.074328706 0.07335331 0.07239072 0.071440764 0.070503265 0.06957807 0.06866501 0.06776394 0.06687469 0.06599711 0.06513104 0.06427634 0.06343285 0.062600434 0.061778937 0.06096822 0.060168143 0.059378564 0.058599345 0.057830352 0.057071447 0.056322504 0.055583388 0.05485397 0.054134123 0.05342372 0.052722644 0.05203077 0.051347967 0.05067413 0.05000913

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.339" PeakHeight="110.0" Num="3" Error="0.0">
-29.528 11.749 -2.546
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.339" EndFrequency="6.35" PeakHeight="191.464" Num="5" zHalfNm="156.316" Error="1.34">
-53.403 -14.227 9.313 -4.157 0.91
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.8525" EndDistance="6480.001" A="-2.36226074E13" B="7.2909281E9" C="-562566.1" Error="0.00859"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6486.633" A="-2.37766894E13" B="7.3384842E9" C="-566235.56" Error="1.73E-4"/>
<QuasiParabolic ID="2" StartDistance="6486.633" EndDistance="6493.267" A="0.0" B="196400.45" C="-25.398882" Error="0.00651"/>
<QuasiParabolic ID="3" StartDistance="6493.267" EndDistance="6499.0" A="-1.33916304E13" B="4.11900902E9" C="-316726.62" Error="0.00899"/>
<QuasiParabolic ID="4" StartDistance="6499.0" EndDistance="6501.0" A="1.64997276E14" B="-5.0778333E10" C="3906795.5" Error="0.00362"/>
<QuasiParabolic ID="5" StartDistance="6501.0" EndDistance="6504.0" A="-1.24919438E13" B="3.82533606E9" C="-292840.53" Error="0.00606"/>
<QuasiParabolic ID="6" StartDistance="6504.0" EndDistance="6510.0" A="3.5595796E13" B="-1.0961792E10" C="843931.3" Error="0.00312"/>
<QuasiParabolic ID="7" StartDistance="6510.0" EndDistance="6558.0" A="-1.85123652E11" B="3.0810426E7" C="-354.5811" Error="0.00887"/>
<QuasiParabolic ID="8" StartDistance="6558.0" EndDistance="6560.0" A="-1.08073725E14" B="3.29337078E10" C="-2508962.2" Error="4.36E-5"/>
<QuasiParabolic ID="9" StartDistance="6560.0" EndDistance="6561.464" A="-2.29304143E14" B="6.9894201E10" C="-5326073.0" Error="3.47E-5"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="19.9" Depth="0.13"/>
<TopsideChapman PeakHeight="191.464" PeakDensity="500279.16" PeakScaleHeight="23.656" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
