<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 07:45:00.000"
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 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" >
2026.05.06 (126) 07:45:00</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">
FF202612605060745001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.795" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.377" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.750" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="232.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="232.500" 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="3.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="262.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.668" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="220.009" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.376" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.252" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.890" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.625" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.000" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
232.500 232.500 232.500 233.500 234.500 235.500 236.500 237.500 237.500 237.500 237.500 240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 250.000 252.500 252.500 252.500 255.000 257.500 260.000 262.500 266.522 272.406 281.832 299.379 343.473
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 42 45 0 0 0 0 63 72 75 72 84 84 93 96 96 99 93 96 105 99 99 99 78 78 114 114 114 111 78 69 66
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 1.5625 -10.9375 -10.9375 1.5625 -10.9375 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="357">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 138.58333 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.16667 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.75 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.668 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0
</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 0.3533988 0.35268724 0.35168076 0.35038465 0.34873247 0.34680796 0.3446216 0.34204412 0.33923516 0.3360058 0.33251932 0.32860458 0.3243659 0.31978112 0.314722 0.3093164 0.3034716 0.29713094 0.29034886 0.28298154 0.27503994 0.26650268 0.25724816 0.24721296 0.23637795 0.22454801 0.21165071 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 0.2044898 0.20987755 0.2152653 0.22065306 0.22604081 0.23142858 0.23681633 0.24220408 0.24759184 0.2529796 0.25836736 0.2637551 0.26914287 0.27453062 0.27991837 0.28530613 0.29069388 0.29608163 0.3014694 0.30685714 0.3122449 0.31763265 0.3230204 0.32840815 0.3337959 0.3391837 0.34457144 0.3499592 0.354 0.36226788 0.39945182 0.44332853 0.49331352 0.5482471 0.607 0.66881204 0.73334605 0.8005858 0.87070614 0.94403374 1.020987 1.1020458 1.1877453 1.2786342 1.3752948 1.4782436 1.5878958 1.7044424 1.8276167 1.9566246 2.089947 2.2253373 2.3600907 2.4913778 2.6167321 2.7343678 2.8431861 2.9426866 3.0328555 3.1139586 3.1864 3.2506418 3.307158 3.3563797 3.3987098 3.4344988 3.4640398 3.4875696 3.5052795 3.5173135 3.523769 3.525 3.5247967 3.5217774 3.5152793 3.5054772 3.4925466 3.476663 3.4580016 3.4367344 3.4130313 3.387059 3.3589795 3.3289514 3.297128 3.2636578 3.2286835 3.192343 3.1547678 3.1160846 3.0764134 3.035869 2.9945605 2.9525912 2.910059 2.8670561 2.8236697 2.7799814 2.736068 2.6920018 2.64785 2.6036754 2.559536 2.5154865 2.4715772 2.4278543 2.384361 2.341137 2.2982183 2.2556376 2.2134259 2.1716104 2.1302156 2.0892644 2.0487764 2.00877 1.9692608 1.9302628 1.8917882 1.8538477 1.8164501 1.7796029 1.7433122 1.7075831 1.6724192 1.6378231 1.6037965 1.5703402 1.5374539 1.5051367 1.4733872 1.4422029 1.4115809 1.3815178 1.3520095 1.3230517 1.2946397 1.266768 1.2394313 1.2126235 1.1863388 1.1605706 1.1353124 1.1105576 1.0862992 1.0625302 1.0392433 1.0164316 0.9940875 0.97220373 0.95077294 0.92978764 0.90924037 0.8891237 0.8694301 0.8501523 0.8312828 0.81281424 0.7947393 0.77705073 0.7597413 0.7428039 0.72623134 0.71001667 0.694153 0.6786334 0.66345114 0.6485995 0.63407195 0.6198619 0.605963 0.5923689 0.5790733 0.5660702 0.55335355 0.5409173 0.5287557 0.516863 0.5052335 0.4938618 0.4827423 0.47186974 0.46123883 0.4508444 0.44068143 0.43074492 0.42103 0.41153193 0.402246 0.3931676 0.38429222 0.37561545 0.367133 0.35884058 0.35073406 0.34280932 0.33506244 0.32748947 0.32008657 0.31285003 0.30577615 0.29886135 0.2921021 0.28549495 0.27903655 0.27272362 0.26655287 0.26052114 0.25462538 0.24886255 0.24322966 0.23772384 0.23234224 0.22708209 0.22194067 0.21691531 0.21200344 0.20720251 0.20251001 0.19792354 0.19344072 0.1890592 0.18477671 0.18059105 0.17650001 0.17250149 0.16859339 0.16477369 0.16104038 0.15739155 0.15382527 0.15033968 0.14693296 0.14360335 0.1403491 0.13716853 0.13405994 0.13102172 0.1280523 0.1251501 0.122313626 0.119541384 0.11683192 0.11418382 0.1115957 0.109066196 0.10659399 0.10417778 0.101816304 0.09950833 0.097252645 0.09504806 0.09289343 0.09078761 0.08872951 0.086718045 0.08475216 0.08283082 0.08095302 0.079117775 0.077324115 0.07557111 0.07385784 0.072183385 0.070546895 0.06894749 0.06738433 0.065856606 0.06436351 0.06290425 0.06147808 0.06008423 0.058721974 0.0573906 0.056089405 0.054817706 0.053574834 0.05236014 0.05117298 0.05001273

</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="3.525" PeakHeight="237.668" Num="5" zHalfNm="220.009" Error="1.069">
-44.301 4.425 -3.179 1.718 -0.581
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6508.583" A="-1.85709953E11" B="5.7317888E7" C="-4422.5513" Error="0.00149"/>
<QuasiParabolic ID="2" StartDistance="6508.583" EndDistance="6537.167" A="0.0" B="695.0523" C="-0.06676995" Error="0.0112"/>
<QuasiParabolic ID="3" StartDistance="6537.167" EndDistance="6565.0" A="4.4443218E10" B="-1.3695545E7" C="1055.0837" Error="0.0112"/>
<QuasiParabolic ID="4" StartDistance="6565.0" EndDistance="6568.0" A="1.28495009E13" B="-3.9147031E9" C="298161.53" Error="0.0161"/>
<QuasiParabolic ID="5" StartDistance="6568.0" EndDistance="6573.0" A="8.7263098E12" B="-2.6591639E9" C="202581.5" Error="0.0114"/>
<QuasiParabolic ID="6" StartDistance="6573.0" EndDistance="6580.0" A="1.75389897E13" B="-5.3406423E9" C="406558.28" Error="0.0132"/>
<QuasiParabolic ID="7" StartDistance="6580.0" EndDistance="6587.0" A="4.5174953E13" B="-1.3740631E10" C="1044855.25" Error="0.00382"/>
<QuasiParabolic ID="8" StartDistance="6587.0" EndDistance="6591.0" A="2.69924203E13" B="-8.2198989E9" C="625792.56" Error="0.00465"/>
<QuasiParabolic ID="9" StartDistance="6591.0" EndDistance="6607.668" A="-3.8158855E13" B="1.15498711E10" C="-873962.44" Error="0.00198"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="85.75" Depth="0.154"/>
<TopsideChapman PeakHeight="237.668" PeakDensity="154164.08" PeakScaleHeight="13.625" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
