<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 08:05:00.000"
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" >
2026.04.07 (097) 08:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609704070805001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.774" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.284" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.125" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.353" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="232.246" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.815" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.713" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.777" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.592" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.058" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.400" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 223.750 225.000 225.000 225.000 226.250 227.500 230.000 230.000 230.000 232.500 232.500 235.000 237.500 237.500 240.000 240.000 242.500 245.000 247.358 250.007 253.003 256.420 260.353 264.928 270.316 276.757 284.590 294.323
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 60 63 75 0 78 78 54 54 51 54 51 48 75 78 69 66 69 69 69 0 0 60 60 0 57 57 60
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="360">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 232.246 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0
</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 0.353812 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36114526 0.3932021 0.43090844 0.47366711 0.52028364 0.5695681 0.6207192 0.67334545 0.7273792 0.78293896 0.8402353 0.89954406 0.96117157 1.0254688 1.0927774 1.1634101 1.2377057 1.3158649 1.3980013 1.4839963 1.5734131 1.6654543 1.7588856 1.8521565 1.943575 2.0315473 2.11479 2.1924443 2.264052 2.3294635 2.3887796 2.4422169 2.4900954 2.5327063 2.570381 2.6034112 2.6320496 2.6565354 2.6770613 2.693786 2.7068439 2.7163386 2.7223399 2.7248964 2.725 2.7243397 2.7214777 2.7164416 2.7093325 2.7002501 2.689296 2.6765695 2.6621697 2.6461947 2.6287403 2.6099007 2.5897682 2.5684319 2.5459793 2.5224946 2.4980597 2.4727538 2.4466522 2.4198282 2.3923519 2.3642902 2.3357072 2.306664 2.277219 2.2474272 2.2173417 2.1870115 2.1564841 2.1258042 2.0950134 2.0641515 2.0332553 2.0023596 1.9714974 1.940699 1.9099926 1.879405 1.8489608 1.8186827 1.788592 1.7587081 1.7290492 1.6996315 1.6704704 1.6415794 1.6129713 1.5846574 1.5566479 1.5289519 1.5015777 1.4745326 1.4478228 1.4214538 1.3954307 1.369757 1.3444365 1.3194716 1.2948645 1.2706167 1.2467293 1.2232026 1.2000369 1.1772318 1.1547865 1.1326998 1.1109706 1.0895969 1.0685768 1.047908 1.0275878 1.0076138 0.9879828 0.9686919 0.94973767 0.93111676 0.9128256 0.89486057 0.87721777 0.8598935 0.8428837 0.82618445 0.80979156 0.79370093 0.7779085 0.7624099 0.7472011 0.73227763 0.7176354 0.7032701 0.68917733 0.67535305 0.6617928 0.6484925 0.63544786 0.6226546 0.6101087 0.5978058 0.58574194 0.573913 0.56231487 0.5509436 0.53979516 0.52886564 0.51815116 0.5076479 0.49735188 0.48725957 0.47736713 0.46767092 0.45816734 0.44885284 0.43972385 0.43077695 0.42200872 0.4134158 0.40499488 0.39674264 0.38865596 0.3807316 0.37296653 0.3653576 0.3579019 0.35059637 0.34343818 0.3364244 0.3295523 0.32281905 0.31622195 0.30975834 0.3034256 0.29722115 0.2911425 0.2851871 0.27935255 0.27363646 0.26803645 0.26255026 0.2571756 0.25191024 0.24675202 0.24169879 0.23674846 0.23189895 0.22714825 0.2224944 0.21793543 0.21346943 0.20909455 0.20480895 0.20061083 0.19649842 0.19247 0.18852386 0.18465835 0.18087183 0.1771627 0.17352942 0.16997042 0.1664842 0.16306931 0.15972428 0.15644768 0.15323815 0.15009432 0.14701483 0.1439984 0.14104374 0.13814957 0.13531469 0.13253787 0.12981795 0.12715375 0.12454414 0.121988006 0.11948426 0.117031835 0.11462967 0.112276755 0.109972075 0.107714646 0.1055035 0.1033377 0.101216316 0.09913843 0.09710317 0.09510965 0.093157016 0.091244444 0.0893711 0.08753619 0.08573893 0.08397854 0.08225427 0.08056538 0.07891115 0.077290855 0.07570382 0.07414935 0.072626784 0.07113546 0.06967475 0.06824402 0.06684265 0.065470055 0.06412563 0.0628088 0.061518993 0.060255673 0.059018284 0.057806294 0.05661919 0.055456456 0.05431759 0.053202108 0.052109525 0.051039375

</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="2.725" PeakHeight="232.246" Num="5" zHalfNm="212.815" Error="1.129">
-46.361 4.977 -3.265 1.777 -0.624
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="354.79355" C="-0.014518565" Error="0.00516"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6534.0" A="-1.20589097E12" B="3.69022688E8" C="-28231.727" Error="0.012"/>
<QuasiParabolic ID="4" StartDistance="6534.0" EndDistance="6555.0" A="9.0060677E10" B="-2.7656706E7" C="2123.2942" Error="0.0194"/>
<QuasiParabolic ID="5" StartDistance="6555.0" EndDistance="6558.0" A="-1.4930595E11" B="4.5376588E7" C="-3447.514" Error="8.46E-4"/>
<QuasiParabolic ID="6" StartDistance="6558.0" EndDistance="6560.0" A="1.17500176E13" B="-3.58357222E9" C="273233.56" Error="0.0113"/>
<QuasiParabolic ID="7" StartDistance="6560.0" EndDistance="6561.0" A="4.817478E12" B="-1.46999309E9" C="112137.586" Error="9.41E-11"/>
<QuasiParabolic ID="8" StartDistance="6561.0" EndDistance="6568.0" A="6.9839314E12" B="-2.13039667E9" C="162465.55" Error="0.00504"/>
<QuasiParabolic ID="9" StartDistance="6568.0" EndDistance="6576.0" A="1.28336852E13" B="-3.91168563E9" C="298069.16" Error="0.018"/>
<QuasiParabolic ID="10" StartDistance="6576.0" EndDistance="6583.0" A="2.48275072E13" B="-7.5594419E9" C="575422.9" Error="0.012"/>
<QuasiParabolic ID="11" StartDistance="6583.0" EndDistance="6602.246" A="-1.8660232E13" B="5.6526925E9" C="-428081.16" Error="0.0038"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="232.246" PeakDensity="92129.34" PeakScaleHeight="15.058" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
