<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-17 -137 21:55:00.000"
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="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 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" >
2026.05.17 (137) 21:55:00</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">
FF202613705172155001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.887" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.214" 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="3.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="225.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" 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="3.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="247.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.371" 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="224.953" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="211.441" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.510" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="19.371" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.651" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.607" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.340" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.130" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="19">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
225.000 227.500 227.500 230.000 230.000 232.500 232.500 235.000 237.500 240.000 242.500 245.000 247.500 251.875 256.250 260.625 265.000 271.452 279.293
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 75 78 78 78 78 75 75 75 72 72 72 69 0 0 0 75 0 0
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="297">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.154 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.83333 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 163.66667 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 190.5 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 224.953 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.2223039 0.24516556 0.2648387 0.2819124 0.2968192 0.30987918 0.32132813 0.3313389 0.3400438 0.3475429 0.35391545 0.35921997 0.36350372 0.36680165 0.36913964 0.37053582 0.371 0.37079126 0.3702492 0.36937633 0.36809444 0.36649394 0.3645022 0.36213264 0.35932225 0.35617158 0.3526257 0.34863865 0.3442477 0.339423 0.3340789 0.32828498 0.3219271 0.31505084 0.3075512 0.29943758 0.2906494 0.281133 0.27071404 0.25935423 0.24692114 0.23331217 0.21838026 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 0.20212422 0.2084969 0.21486956 0.22124223 0.22761491 0.23398758 0.24036025 0.24673292 0.25310558 0.25947827 0.26585093 0.2722236 0.27859628 0.28496894 0.2913416 0.2977143 0.30408695 0.3104596 0.3168323 0.32320496 0.32957765 0.33595031 0.34232298 0.34869567 0.35506833 0.361441 0.36781368 0.371 0.39519557 0.44792843 0.50598025 0.568863 0.636287 0.70811456 0.7843701 0.86517066 0.950708 1.0411699 1.136785 1.2376931 1.3440169 1.4557319 1.5727096 1.694527 1.8206367 1.9501698 2.0819545 2.2146118 2.3465788 2.4761667 2.6016827 2.7215228 2.8342435 2.9386654 3.0337536 3.1187656 3.1931338 3.2564285 3.3083837 3.3488126 3.377593 3.394661 3.4 3.3999934 3.396832 3.3881373 3.3742673 3.3555813 3.3324368 3.305186 3.2741745 3.2397375 3.2022002 3.161874 3.1190581 3.0740366 3.027079 2.9784403 2.9283597 2.877062 2.8247566 2.771639 2.7178903 2.6636775 2.6091554 2.5544653 2.4997375 2.4450898 2.3906302 2.336456 2.282655 2.2293062 2.1764803 2.1242397 2.0726404 2.0217307 1.9715534 1.9221452 1.8735377 1.8257571 1.7788259 1.7327617 1.6875792 1.6432887 1.5998983 1.5574129 1.5158346 1.4751636 1.4353977 1.3965333 1.3585647 1.3214848 1.2852855 1.2499571 1.2154891 1.1818703 1.1490884 1.1171306 1.0859835 1.0556333 1.0260658 0.99726635 0.96922016 0.94191235 0.91532767 0.8894511 0.8642672 0.83976084 0.81591684 0.7927201 0.7701555 0.7482082 0.7268635 0.70610666 0.6859234 0.66629946 0.64722085 0.6286738 0.6106447 0.59312034 0.5760875 0.5595334 0.5434455 0.5278115 0.5126194 0.49785715 0.48351336 0.46957675 0.45603624 0.44288105 0.43010065 0.41768476 0.40562335 0.39390665 0.3825251 0.37146938 0.36073044 0.35029942 0.3401677 0.3303269 0.32076886 0.31148562 0.3024694 0.29371265 0.28520808 0.2769485 0.26892698 0.26113677 0.25357124 0.24622403 0.2390889 0.2321598 0.22543083 0.21889628 0.2125506 0.20638834 0.20040429 0.19459328 0.18895039 0.18347077 0.17814973 0.17298271 0.16796526 0.1630931 0.15836205 0.153768 0.14930704 0.14497532 0.14076911 0.13668478 0.13271882 0.1288678 0.12512842 0.12149743 0.11797171 0.11454822 0.111223996 0.107996166 0.104861945 0.10181862 0.098863564 0.09599423 0.09320811 0.09050281 0.087876 0.0853254 0.08284879 0.08044403 0.07810905 0.075841814 0.07364036 0.0715028 0.06942726 0.067411944 0.06545512 0.063555084 0.061710183 0.059918825 0.058179457 0.05649057 0.0548507 0.053258426 0.051712364 0.05021118

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.371" PeakHeight="110.0" Num="3" Error="0.0">
-19.367 2.691 -0.17
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.371" EndFrequency="3.4" PeakHeight="224.953" Num="5" zHalfNm="211.441" Error="0.991">
-34.468 0.251 -0.526 0.42 -0.13
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0166" EndDistance="6480.001" A="-6.0411262E11" B="1.86454512E8" C="-14386.784" Error="0.00248"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6506.833" A="-2.41122902E11" B="7.4420648E7" C="-5742.1963" Error="0.00176"/>
<QuasiParabolic ID="2" StartDistance="6506.833" EndDistance="6533.667" A="0.0" B="3899.0042" C="-0.5592293" Error="0.0618"/>
<QuasiParabolic ID="3" StartDistance="6533.667" EndDistance="6555.0" A="-1.29564242E10" B="3808071.0" C="-279.292" Error="0.0618"/>
<QuasiParabolic ID="4" StartDistance="6555.0" EndDistance="6560.0" A="7.5182617E11" B="-2.295352E8" C="17519.586" Error="0.0181"/>
<QuasiParabolic ID="5" StartDistance="6560.0" EndDistance="6567.0" A="1.59820116E13" B="-4.8728842E9" C="371433.38" Error="0.0628"/>
<QuasiParabolic ID="6" StartDistance="6567.0" EndDistance="6570.0" A="1.84749885E13" B="-5.632128E9" C="429240.9" Error="0.00608"/>
<QuasiParabolic ID="7" StartDistance="6570.0" EndDistance="6585.0" A="3.37783764E13" B="-1.02906931E10" C="783774.06" Error="0.0327"/>
<QuasiParabolic ID="8" StartDistance="6585.0" EndDistance="6594.953" A="-6.8734346E13" B="2.08445297E10" C="-1580327.9" Error="0.0104"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="80.5" Depth="0.171"/>
<TopsideChapman PeakHeight="224.953" PeakDensity="143424.31" PeakScaleHeight="10.607" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
