<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-21 -080 22:35:00.000"
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: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.21 (080) 22:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202608003212235001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.612" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.293" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.100" 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="86" Val="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="288.004" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.422" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="247.114" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.755" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.323" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.330" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.659" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.482" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.280" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.340" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="91">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 228.750 230.000 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 236.250 237.500 237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 241.250 242.500 242.500 242.500 245.000 245.000 245.000 245.000 245.000 247.500 247.500 247.500 250.000 250.833 251.667 252.500 252.500 252.500 252.500 253.750 255.000 255.000 257.500 257.500 257.500 260.000 261.250 262.500 262.500 263.750 265.000 267.500 267.500 267.500 270.000 270.000 272.500 272.500 274.500 276.500 278.500 280.500 282.500 282.500 282.500 285.000 286.415 288.004 289.802 291.852 294.212 296.957 300.190 304.054 308.754 314.594 322.045
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 39 0 54 0 0 0 78 69 63 0 0 0 0 78 81 66 0 75 81 96 96 90 0 72 0 99 0 72 72 75 78 75 75 0 75 93 90 90 90 78 78 93 93 69 66 81 0 0 84 78 75 84 0 72 75 75 78 75 78 0 60 84 0 87 87 78 78 84 81 84 81 0 0 0 0 84 84 75 0 84 0 81 81 84 84 75 75 66 66 60
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="427">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.384 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 247.114 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22173388 0.25270155 0.2789116 0.3013434 0.32076305 0.3376997 0.35253358 0.36553732 0.37690982 0.3868008 0.3953256 0.4025689 0.4086002 0.4134722 0.41722342 0.41988343 0.4214719 0.422 0.4218103 0.4211334 0.42008063 0.41860303 0.41665503 0.41430125 0.41150215 0.40822324 0.40453765 0.40029308 0.39564762 0.39034566 0.3846297 0.3783642 0.37144038 0.36394826 0.3557428 0.34688342 0.33723703 0.32674992 0.31533128 0.3028014 0.2891732 0.27415133 0.25753245 0.239076 0.21850768 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 0.20134954 0.2094468 0.21754408 0.22564134 0.2337386 0.24183586 0.24993312 0.25803038 0.26612765 0.27422494 0.2823222 0.29041946 0.29851672 0.30661398 0.31471124 0.3228085 0.33090577 0.33900303 0.34710032 0.35519758 0.36329484 0.3713921 0.37948936 0.38758662 0.39568388 0.40378115 0.4118784 0.4199757 0.422 0.456407 0.50659996 0.56140804 0.62047076 0.6834852 0.7502741 0.8207463 0.89486927 0.9727655 1.0545472 1.1404009 1.2305362 1.3252113 1.4247229 1.5293357 1.6393559 1.7551169 1.876907 2.0050335 2.1397486 2.2812886 2.429783 2.5852761 2.7477422 2.9169407 3.09248 3.2737846 3.4600215 3.650183 3.8431098 4.0374537 4.231753 4.4245973 4.614566 4.8002787 4.980545 5.154336 5.320735 5.47904 5.6287203 5.7693353 5.9005466 6.022222 6.1341543 6.236355 6.3287363 6.4113436 6.484206 6.5473585 6.600844 6.6447277 6.6790433 6.7038307 6.719124 6.7249384 6.725 6.722875 6.7155037 6.703076 6.6858206 6.663965 6.6377387 6.6073685 6.573079 6.5350924 6.493628 6.4488993 6.401116 6.3504834 6.2971997 6.241459 6.183448 6.1233478 6.0613327 5.997571 5.932224 5.865447 5.7973876 5.7281885 5.6579847 5.586905 5.5150723 5.442603 5.3696074 5.2961907 5.2224517 5.1484833 5.0743737 5.0002065 4.9260583 4.852003 4.7781086 4.704439 4.631054 4.5580087 4.485355 4.4131403 4.3414087 4.270202 4.1995573 4.129509 4.060088 3.9913244 3.9232435 3.8558693 3.789223 3.7233233 3.6581876 3.5938308 3.530266 3.4675047 3.4055562 3.344429 3.2841299 3.2246637 3.166035 3.108246 3.0512993 2.9951954 2.9399335 2.8855128 2.8319316 2.7791867 2.7272751 2.676192 2.6259334 2.5764935 2.5278666 2.4800465 2.4330266 2.3867993 2.3413577 2.2966938 2.2527995 2.2096665 2.1672862 2.1256497 2.0847485 2.044573 2.0051143 1.9663628 1.9283092 1.890944 1.8542575 1.81824 1.7828821 1.748174 1.7141057 1.680668 1.6478509 1.6156448 1.5840402 1.5530275 1.5225971 1.4927396 1.4634454 1.4347055 1.4065105 1.3788512 1.3517185 1.3251034 1.298997 1.2733905 1.2482753 1.2236425 1.1994838 1.1757907 1.1525549 1.1297681 1.1074226 1.08551 1.0640225 1.0429527 1.0222925 1.0020347 0.9821716 0.9626961 0.9436009 0.92487895 0.90652335 0.8885271 0.8708836 0.8535861 0.8366281 0.82000315 0.8037049 0.7877273 0.77206415 0.7567094 0.7416572 0.7269017 0.71243733 0.6982584 0.68435943 0.67073506 0.6573799 0.6442889 0.6314568 0.6188786 0.60654944 0.5944644 0.58261883 0.571008 0.55962735 0.54847234 0.53753865 0.5268219 0.51631784 0.5060224 0.4959313 0.48604068 0.47634658 0.46684512 0.45753253 0.44840506 0.43945912 0.43069106 0.42209744 0.4136748 0.4054198 0.39732906 0.38939938 0.3816276 0.37401053 0.36654517 0.3592285 0.35205758 0.3450295 0.33814147 0.3313907 0.32477447 0.3182901 0.311935 0.3057066 0.29960236 0.29361984 0.28775662 0.28201032 0.2763786 0.27085924 0.26544997 0.26014858 0.25495297 0.24986102 0.24487066 0.23997988 0.2351867 0.23048915 0.22588536 0.22137345 0.2169516 0.212618 0.20837091 0.20420858 0.20012935 0.19613156 0.19221357 0.1883738 0.1846107 0.18092273 0.1773084 0.17376624 0.17029479 0.16689268 0.1635585 0.1602909 0.15708856 0.15395017 0.15087445 0.14786015 0.14490607 0.14201099 0.13917372 0.13639311 0.13366807 0.13099743 0.12838015 0.12581514 0.123301364 0.12083781 0.118423454 0.11605734 0.11373848 0.111465946 0.10923881 0.10705616 0.104917124 0.102820806 0.100766376 0.09875298 0.096779816 0.09484607 0.092950955 0.0910937 0.08927355 0.08748976 0.08574161 0.08402839 0.0823494 0.08070395 0.07909137 0.07751102 0.07596224 0.0744444 0.07295689 0.071499094 0.07007043 0.06867031 0.06729817 0.06595343 0.064635575 0.06334405 0.06207832 0.060837884 0.059622236 0.058430873 0.05726332 0.056119088 0.054997724 0.053898763 0.052821763 0.051766284 0.05073189

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.422" PeakHeight="110.0" Num="3" Error="0.0">
-20.766 3.408 -0.258
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.422" EndFrequency="6.725" PeakHeight="247.114" Num="5" zHalfNm="226.755" Error="1.145">
-56.407 2.625 -2.016 1.297 -0.363
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.016" EndDistance="6480.001" A="-7.8141338E11" B="2.41176976E8" C="-18609.156" Error="0.0049"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6507.417" A="-3.26889079E11" B="1.00891696E8" C="-7784.675" Error="0.00399"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="-3821.4236" C="0.62713635" Error="0.059"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6561.0" A="1.88118499E11" B="-5.7667828E7" C="4419.5566" Error="0.059"/>
<QuasiParabolic ID="4" StartDistance="6561.0" EndDistance="6562.0" A="9.4725661E12" B="-2.88786048E9" C="220102.58" Error="1.72E-10"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6575.0" A="1.42601093E13" B="-4.3470326E9" C="331286.06" Error="0.0336"/>
<QuasiParabolic ID="6" StartDistance="6575.0" EndDistance="6601.0" A="6.2406382E13" B="-1.89922877E10" C="1444993.6" Error="0.0768"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6617.114" A="-1.14019428E14" B="3.4461983E10" C="-2603958.8" Error="0.0104"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.222"/>
<TopsideChapman PeakHeight="247.114" PeakDensity="561112.0" PeakScaleHeight="15.482" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
