<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 06:45:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 06:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" 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">
FF202612405040645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.454" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.880" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="284.285" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="284.285" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="307.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="273.347" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.185" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.480" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.731" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.889" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.692" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.070" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="19">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
284.285 285.008 285.808 286.699 287.696 288.820 290.097 291.560 293.253 295.235 297.588 300.000 305.000 307.500 315.000 322.500 332.500 350.000 378.925
</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 69 93 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -1.5625 -7.8125 1.5625 1.5625 1.5625 -1.5625 -1.5625 -4.6875 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="433">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.70567 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.41133 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.117 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 273.347 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0
</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 0.35313663 0.35250106 0.35164472 0.35064512 0.34943143 0.34800863 0.34638256 0.3445599 0.34254822 0.3403557 0.33792278 0.33532998 0.33245555 0.32938346 0.32606673 0.3225273 0.3187282 0.3146991 0.31035867 0.30580533 0.30092317 0.2957489 0.29018536 0.28441668 0.27819258 0.27158746 0.26456153 0.2570903 0.24914561 0.24065071 0.23155987 0.22178988 0.21136308 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 0.20253894 0.20685199 0.21116503 0.21547806 0.21979111 0.22410415 0.22841719 0.23273022 0.23704328 0.24135631 0.24566935 0.24998239 0.25429544 0.25860846 0.2629215 0.26723456 0.2715476 0.27586064 0.2801737 0.2844867 0.28879976 0.2931128 0.29742584 0.3017389 0.3060519 0.31036496 0.314678 0.31899104 0.3233041 0.32761714 0.33193016 0.3362432 0.34055626 0.3448693 0.34918234 0.35349536 0.354 0.37949148 0.4094589 0.44071737 0.47337624 0.5075355 0.5432799 0.5806986 0.61985403 0.66082084 0.7036549 0.7484021 0.79509765 0.84377784 0.89444286 0.94709235 1.001723 1.0583014 1.116773 1.1770848 1.23916 1.3028973 1.3681939 1.4349273 1.5029429 1.572094 1.642218 1.7131253 1.7846446 1.8565416 1.9286394 2.000688 2.0724938 2.1438167 2.2144105 2.2840772 2.3525333 2.4195812 2.4849818 2.548484 2.6098692 2.6689296 2.7254224 2.7791555 2.8299248 2.877524 2.9217863 2.9625356 2.999619 3.0328727 3.0621831 3.087431 3.1085114 3.125341 3.137851 3.1459928 3.1497338 3.15 3.149533 3.1470459 3.1424892 3.1359477 3.127507 3.1172526 3.1052694 3.0916424 3.076455 3.0597908 3.0417306 3.0223548 3.001742 2.9799683 2.957109 2.9332368 2.9084222 2.8827343 2.8562388 2.8290005 2.801081 2.7725396 2.7434342 2.7138193 2.6837482 2.653271 2.6224363 2.5912902 2.5598767 2.5282376 2.496413 2.4644403 2.432356 2.400194 2.3679862 2.3357632 2.3035536 2.2713845 2.2392812 2.2072678 2.1753664 2.143598 2.1119823 2.0805376 2.0492806 2.0182276 1.9873929 1.9567901 1.9264317 1.8963293 1.8664933 1.8369336 1.8076587 1.7786767 1.7499949 1.7216196 1.6935565 1.6658111 1.6383873 1.6112895 1.5845208 1.5580841 1.5319817 1.5062155 1.4807869 1.4556968 1.4309461 1.4065349 1.3824631 1.3587304 1.3353362 1.3122796 1.2895591 1.2671736 1.2451212 1.2234004 1.2020087 1.1809442 1.1602044 1.1397867 1.1196887 1.0999074 1.0804399 1.0612833 1.0424346 1.0238904 1.0056475 0.9877027 0.97005254 0.95269364 0.9356225 0.9188357 0.90232956 0.88610065 0.87014526 0.85445994 0.83904094 0.8238847 0.8089876 0.794346 0.7799563 0.7658149 0.75191814 0.7382625 0.72484434 0.7116602 0.69870645 0.6859796 0.6734762 0.66119283 0.64912593 0.6372722 0.6256282 0.6141906 0.6029561 0.59192145 0.5810834 0.5704387 0.5599842 0.5497168 0.53963333 0.5297308 0.5200061 0.5104563 0.50107855 0.49186975 0.48282716 0.4739479 0.4652292 0.4566683 0.44826248 0.44000906 0.43190542 0.42394894 0.4161371 0.40846735 0.4009372 0.39354423 0.386286 0.37916017 0.37216437 0.36529636 0.35855383 0.35193455 0.34543636 0.33905712 0.33279467 0.32664695 0.3206119 0.3146875 0.30887178 0.30316278 0.2975586 0.29205737 0.28665715 0.28135622 0.27615273 0.27104494 0.26603112 0.26110956 0.2562786 0.25153658 0.2468819 0.24231298 0.23782824 0.23342617 0.22910523 0.22486399 0.22070096 0.21661475 0.21260391 0.20866711 0.20480296 0.20101015 0.19728738 0.19363336 0.19004683 0.18652655 0.18307132 0.17967993 0.17635122 0.17308404 0.16987726 0.16672976 0.16364045 0.16060829 0.1576322 0.15471116 0.15184414 0.14903018 0.14626828 0.14355747 0.14089684 0.13828544 0.13572238 0.13320675 0.1307377 0.12831436 0.12593587 0.12360143 0.121310204 0.11906142 0.116854265 0.114687994 0.11256184 0.11047506 0.10842694 0.10641676 0.10444381 0.10250742 0.100606896 0.098741576 0.09691083 0.09511399 0.093350455 0.09161959 0.089920804 0.08825349 0.08661708 0.08501099 0.08343467 0.081887566 0.08036914 0.07887884 0.077416174 0.07598062 0.07457167 0.07318884 0.071831636 0.0704996 0.069192246 0.06790914 0.06664981 0.065413825 0.06420076 0.06301018 0.061841674 0.06069483 0.059569247 0.058464535 0.057380307 0.05631618 0.05527178 0.054246746 0.053240716 0.052253343 0.051284276 0.050333176

</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="3.15" PeakHeight="273.347" Num="5" zHalfNm="251.185" Error="0.762">
-55.9 -0.292 -0.162 0.088 0.036
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6515.706" A="-1.19244472E11" B="3.6803852E7" C="-2839.678" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.706" EndDistance="6551.411" A="0.0" B="1013.7479" C="-0.11554936" Error="0.0203"/>
<QuasiParabolic ID="3" StartDistance="6551.411" EndDistance="6553.0" A="-4.36430334E12" B="1.33197402E9" C="-101628.695" Error="0.0526"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6577.0" A="1.10655807E11" B="-3.3800228E7" C="2581.1455" Error="0.0795"/>
<QuasiParabolic ID="5" StartDistance="6577.0" EndDistance="6584.0" A="-2.94740361E11" B="8.9476696E7" C="-6790.675" Error="0.0168"/>
<QuasiParabolic ID="6" StartDistance="6584.0" EndDistance="6594.0" A="3.7425114E12" B="-1.13690598E9" C="86342.88" Error="0.0752"/>
<QuasiParabolic ID="7" StartDistance="6594.0" EndDistance="6629.0" A="8.7404021E12" B="-2.65279642E9" C="201287.56" Error="0.0672"/>
<QuasiParabolic ID="8" StartDistance="6629.0" EndDistance="6643.347" A="-2.42134821E13" B="7.2895427E9" C="-548624.9" Error="0.0101"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.117" Depth="0.154"/>
<TopsideChapman PeakHeight="273.347" PeakDensity="123107.94" PeakScaleHeight="16.692" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
