<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 23:50:00.000"
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" >
2026.05.19 (139) 23:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905192350001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.688" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.617" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.725" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.725" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.175" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.175" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.725" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.725" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="248.590" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.749" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.985" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.924" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.766" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.664" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.920" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.330" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
247.175 248.173 249.282 250.523 251.921 253.506 255.320 257.415 259.863 262.500 267.500 270.000 275.000 282.500 292.500 305.000 325.000 358.424
</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 0 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 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -10.9375 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="378">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.00766 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.01534 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.023 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 248.59 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0
</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 0.35354906 0.35298675 0.3521277 0.3511249 0.34983355 0.3482606 0.34655938 0.34451985 0.34222645 0.33976108 0.33692902 0.3338869 0.33058548 0.32698292 0.3231077 0.31886986 0.31437162 0.30948514 0.30432627 0.29874828 0.2928176 0.28642732 0.279633 0.27236181 0.26455325 0.25613737 0.24717402 0.23754573 0.22709599 0.21579717 0.2036716 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 0.20473757 0.20954892 0.21436027 0.21917161 0.22398296 0.2287943 0.23360565 0.238417 0.24322835 0.2480397 0.25285104 0.2576624 0.26247373 0.26728508 0.27209643 0.27690777 0.28171912 0.28653046 0.2913418 0.29615316 0.3009645 0.30577588 0.31058723 0.31539857 0.32020992 0.32502127 0.3298326 0.33464396 0.3394553 0.34426665 0.349078 0.35388935 0.354 0.38551238 0.42448923 0.47001767 0.5207969 0.5751875 0.63200855 0.6906878 0.7511236 0.8134876 0.87811637 0.94543815 1.0159453 1.0902218 1.1688904 1.2526256 1.3421152 1.4380045 1.5408506 1.6507652 1.7672981 1.8890145 2.0134275 2.137185 2.2568789 2.3696094 2.473636 2.5681717 2.653223 2.7292526 2.7968946 2.856841 2.9097598 2.9562564 2.9968402 3.0319705 3.0620182 3.0872948 3.1080537 3.1245003 3.136791 3.145037 3.1493177 3.15 3.149761 3.1472132 3.1419787 3.1341827 3.123951 3.1114094 3.0966837 3.079898 3.0611749 3.0406349 3.018396 2.9945736 2.9692802 2.942625 2.9147136 2.8856483 2.8555274 2.8244455 2.792494 2.75976 2.7263262 2.6922727 2.657675 2.622605 2.5871313 2.5513184 2.5152273 2.4789162 2.4424393 2.4058478 2.36919 2.332511 2.2958531 2.2592554 2.222755 2.186386 2.1501803 2.1141672 2.078374 2.0428255 2.0075452 1.972554 1.9378712 1.9035146 1.8695 1.8358421 1.8025538 1.7696465 1.7371309 1.7050159 1.6733097 1.6420189 1.6111497 1.580707 1.550695 1.5211167 1.4919748 1.4632713 1.4350071 1.4071828 1.3797983 1.3528532 1.3263463 1.3002762 1.2746408 1.2494379 1.2246649 1.2003187 1.1763961 1.1528937 1.1298075 1.1071335 1.0848676 1.0630053 1.0415423 1.0204737 0.9997948 0.97950065 0.95958626 0.94004655 0.9208764 0.9020705 0.8836237 0.8655307 0.8477862 0.83038473 0.8133211 0.7965899 0.78018576 0.7641035 0.7483376 0.7328829 0.71773416 0.7028861 0.6883336 0.6740713 0.6600944 0.64639753 0.6329759 0.6198244 0.60693824 0.5943125 0.5819424 0.56982315 0.55795014 0.5463187 0.5349243 0.52376246 0.51282877 0.5021188 0.4916283 0.48135298 0.47128874 0.46143144 0.45177707 0.4423216 0.43306115 0.4239919 0.41511005 0.40641186 0.39789373 0.38955203 0.38138327 0.37338394 0.3655507 0.35788015 0.35036904 0.34301415 0.3358123 0.32876042 0.32185546 0.3150944 0.30847433 0.3019924 0.29564574 0.2894316 0.2833473 0.27739015 0.2715575 0.26584688 0.2602557 0.2547815 0.24942195 0.24417461 0.23903719 0.23400739 0.22908302 0.22426187 0.21954182 0.21492076 0.21039663 0.20596744 0.20163119 0.19738597 0.19322987 0.18916105 0.18517768 0.18127798 0.17746021 0.17372265 0.17006364 0.16648155 0.16297475 0.15954167 0.15618077 0.15289055 0.14966953 0.14651625 0.14342931 0.14040731 0.13744889 0.13455272 0.13171749 0.12894192 0.12622477 0.123564824 0.12096086 0.11841171 0.11591624 0.113473296 0.111081794 0.10874064 0.1064488 0.10420521 0.10200888 0.099858806 0.09775402 0.09569356 0.0936765 0.09170193 0.08976896 0.08787671 0.08602432 0.08421096 0.08243581 0.08069806 0.07899692 0.077331625 0.075701416 0.07410557 0.072543345 0.07101404 0.069516964 0.068051435 0.066616796 0.06521239 0.06383758 0.06249175 0.06117428 0.05988458 0.058622062 0.057386156 0.0561763 0.054991946 0.053832553 0.0526976 0.05158657 0.05049896

</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="248.59" Num="5" zHalfNm="229.749" Error="1.984">
-45.944 6.098 -4.218 2.26 -0.763
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6512.008" A="-1.4824235E11" B="4.5753812E7" C="-3530.2615" Error="0.0016"/>
<QuasiParabolic ID="2" StartDistance="6512.008" EndDistance="6544.015" A="0.0" B="5085.917" C="-0.7409822" Error="0.0949"/>
<QuasiParabolic ID="3" StartDistance="6544.015" EndDistance="6576.0" A="2.36733112E10" B="-7354159.0" C="571.03235" Error="0.106"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6586.0" A="1.05897641E13" B="-3.2208855E9" C="244908.88" Error="0.106"/>
<QuasiParabolic ID="5" StartDistance="6586.0" EndDistance="6600.0" A="2.69367514E13" B="-8.1850476E9" C="621781.2" Error="0.0887"/>
<QuasiParabolic ID="6" StartDistance="6600.0" EndDistance="6618.59" A="-2.63130521E13" B="7.9512561E9" C="-600666.06" Error="0.0125"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="96.023" Depth="0.154"/>
<TopsideChapman PeakHeight="248.59" PeakDensity="123107.94" PeakScaleHeight="14.664" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
