<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 01:55:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.07 (127) 01:55:00</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">
FF202612705070155001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.698" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.683" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="242.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="242.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.625" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="282.965" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="246.355" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.216" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.218" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.611" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.944" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.950" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.310" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.55 3.575 3.6 3.625 3.65 3.675 3.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
242.500 242.500 242.500 245.000 247.500 247.500 247.500 250.000 250.000 252.500 252.500 255.000 255.000 257.500 257.500 260.000 260.000 262.500 265.000 265.000 267.500 270.000 270.000 271.951 274.160 276.681 279.584 282.965 286.951 291.722 297.534
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 69 69 93 87 93 93 96 96 102 105 90 93 90 93 102 105 105 102 102 99 87 87 93 90 78 0 78 78 75 75
</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 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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.91667 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.83333 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.75 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 246.355 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0
</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 0.35347393 0.3529119 0.3519786 0.3509026 0.34953943 0.34789655 0.34598285 0.3438088 0.34138623 0.3386593 0.33571413 0.33243394 0.32884502 0.3249759 0.3207348 0.3162249 0.311316 0.3060709 0.30039963 0.29436976 0.2878726 0.28096467 0.27349284 0.26549044 0.25688842 0.24761072 0.23761433 0.22685163 0.21513027 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 0.20083019 0.20581132 0.21079245 0.21577358 0.22075471 0.22573584 0.23071699 0.23569812 0.24067925 0.24566038 0.2506415 0.25562266 0.2606038 0.26558492 0.27056605 0.27554718 0.2805283 0.28550944 0.29049057 0.2954717 0.30045283 0.30543396 0.3104151 0.31539622 0.32037735 0.32535848 0.3303396 0.33532074 0.3403019 0.34528303 0.35026416 0.354 0.3631135 0.4022558 0.4457508 0.49358183 0.5456575 0.6019111 0.6622434 0.7266154 0.7949884 0.86733 0.9436404 1.0239094 1.1081294 1.1962639 1.28824 1.3839766 1.4832811 1.5859891 1.6917928 1.8003297 1.9111747 2.0238497 2.1377397 2.2522347 2.3666668 2.4802735 2.5923524 2.7021604 2.8089545 2.9120414 3.0107768 3.1045647 3.1928406 3.2751334 3.3510098 3.420077 3.4820364 3.5366204 3.5836031 3.6228046 3.65409 3.6773448 3.6924915 3.6994843 3.7 3.699113 3.6943252 3.6855762 3.67308 3.6570516 3.637705 3.6152525 3.5899029 3.561861 3.531327 3.498495 3.463554 3.4266856 3.388065 3.3478608 3.3062334 3.2633367 3.2193167 3.174312 3.1284544 3.0818682 3.0346699 2.9869702 2.9388726 2.8904734 2.8418634 2.7931273 2.744343 2.6955838 2.646917 2.5984051 2.5501053 2.5020704 2.4543486 2.4069843 2.3600173 2.3134847 2.2674186 2.2218492 2.1768029 2.1323032 2.0883713 2.045025 2.0022807 1.960152 1.9186505 1.877786 1.8375666 1.7979985 1.7590866 1.7208341 1.6832434 1.6463151 1.6100492 1.5744444 1.5394988 1.5052092 1.4715719 1.4385827 1.4062363 1.3745272 1.3434492 1.312996 1.2831603 1.2539349 1.2253121 1.197284 1.1698424 1.1429788 1.1166847 1.0909514 1.0657701 1.041132 1.0170277 0.99344844 0.9703851 0.9478284 0.9257694 0.90419894 0.88310796 0.86248744 0.8423284 0.8226219 0.8033591 0.78453124 0.7661296 0.74814564 0.7305708 0.7133968 0.69661516 0.68021786 0.6641968 0.648544 0.63325167 0.61831206 0.6037176 0.58946085 0.57553446 0.5619312 0.548644 0.53566587 0.52299005 0.51060975 0.4985184 0.4867096 0.47517696 0.4639143 0.45291552 0.44217464 0.43168584 0.42144334 0.4114416 0.40167505 0.39213836 0.38282624 0.37373355 0.3648552 0.3561863 0.34772196 0.33945748 0.33138824 0.3235097 0.31581742 0.30830708 0.30097443 0.29381537 0.2868258 0.2800018 0.27333945 0.26683503 0.26048478 0.25428513 0.24823253 0.24232353 0.23655476 0.23092291 0.22542475 0.22005717 0.21481706 0.20970143 0.20470734 0.19983193 0.19507238 0.19042598 0.18589002 0.18146193 0.17713913 0.17291914 0.16879952 0.1647779 0.16085196 0.15701942 0.1532781 0.1496258 0.14606042 0.14257991 0.13918225 0.13586548 0.13262767 0.12946694 0.12638147 0.12336948 0.1204292 0.117558956 0.11475707 0.112021916 0.10935191 0.106745504 0.104201175 0.101717465 0.09929293 0.096926145 0.09461575 0.09236041 0.09015879 0.08800964 0.0859117 0.08386374 0.081864595 0.07991308 0.07800807 0.076148465 0.07433317 0.07256114 0.07083134 0.06914277 0.06749444 0.065885395 0.06431471 0.06278145 0.06128474 0.059823703 0.058397494 0.05700528 0.05564625 0.054319613 0.053024597 0.051760454 0.050526444

</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="3.7" PeakHeight="246.355" Num="5" zHalfNm="229.216" Error="0.556">
-44.189 0.987 -0.543 0.246 -0.106
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6510.917" A="-1.58830494E11" B="4.902176E7" C="-3782.4177" Error="0.00166"/>
<QuasiParabolic ID="2" StartDistance="6510.917" EndDistance="6541.833" A="0.0" B="-852.1934" C="0.17091362" Error="0.0161"/>
<QuasiParabolic ID="3" StartDistance="6541.833" EndDistance="6571.0" A="5.8865054E10" B="-1.8072364E7" C="1387.1311" Error="0.0161"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6572.0" A="1.74521713E12" B="-5.31343424E8" C="40442.91" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6582.0" A="1.07572049E13" B="-3.2738839E9" C="249096.33" Error="0.0335"/>
<QuasiParabolic ID="6" StartDistance="6582.0" EndDistance="6604.0" A="2.39510214E13" B="-7.282944E9" C="553643.56" Error="0.0385"/>
<QuasiParabolic ID="7" StartDistance="6604.0" EndDistance="6616.355" A="-5.2084276E13" B="1.57440993E10" C="-1189772.9" Error="0.0117"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.75" Depth="0.154"/>
<TopsideChapman PeakHeight="246.355" PeakDensity="169851.11" PeakScaleHeight="12.95" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
