<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-24 -297 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="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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, 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" >
2026.10.24 (297) 07:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629710240745001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.737" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.725" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.175" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.175" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.675" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="255.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="255.000" 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="4.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="287.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.436" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.175" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.175" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="250.127" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="233.322" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.231" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.375" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.334" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.074" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.750" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.490" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
255.000 255.500 256.000 256.500 257.000 257.500 257.500 258.000 258.500 259.000 259.500 260.000 260.000 260.000 261.250 262.500 262.500 263.333 264.167 265.000 265.000 265.000 265.000 265.750 266.500 267.250 268.000 268.750 269.500 270.250 271.000 271.750 272.500 272.500 273.250 274.000 274.750 275.500 276.250 277.000 277.750 278.500 279.250 280.000 280.625 281.250 281.875 282.500 285.000 285.000 285.000 287.500 287.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
99 0 0 0 0 72 96 0 0 0 0 84 84 81 0 72 72 0 0 69 69 69 57 0 0 0 0 0 0 0 0 0 69 69 0 0 0 0 0 0 0 0 0 69 0 0 0 84 69 69 45 45 69
</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 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 9.375 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 -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="356">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.218 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.74234 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.48466 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.227 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 250.127 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22907507 0.26116082 0.28825 0.31140807 0.33144972 0.34893113 0.36424682 0.37767208 0.3894167 0.3996324 0.40843683 0.41592064 0.42215255 0.42718646 0.43106335 0.4338125 0.4354542 0.436 0.43579835 0.43525144 0.4343038 0.4329595 0.4312817 0.42916426 0.42667454 0.42376918 0.42046398 0.4167232 0.4125697 0.40792492 0.40287402 0.3973762 0.3912564 0.384766 0.3776839 0.3699189 0.36166358 0.3527042 0.34297377 0.33246714 0.32111558 0.30878523 0.29531986 0.28065884 0.26447195 0.24662253 0.22681706 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 0.20408908 0.2120239 0.21995871 0.22789353 0.23582835 0.24376316 0.251698 0.2596328 0.2675676 0.27550244 0.28343725 0.29137206 0.2993069 0.3072417 0.31517652 0.32311136 0.33104616 0.33898097 0.3469158 0.35485062 0.36278543 0.37072027 0.37865508 0.38658988 0.3945247 0.40245953 0.41039434 0.41832915 0.426264 0.4341988 0.436 0.4761367 0.5231433 0.5691375 0.6161088 0.6652311 0.7173614 0.77320766 0.83339936 0.89841205 0.9685538 1.043901 1.1242388 1.2090611 1.2976166 1.3890071 1.4823601 1.5768619 1.671873 1.766913 1.8616648 1.9558924 2.0495095 2.1424603 2.2347496 2.3264298 2.4175382 2.508158 2.598358 2.688244 2.7778738 2.8673317 2.9567106 3.04609 3.135506 3.2250493 3.3147864 3.40472 3.494901 3.5853195 3.6759222 3.7666132 3.8572261 3.9474375 4.036728 4.1242805 4.2088137 4.288244 4.359474 4.418027 4.45826 4.4747834 4.475 4.4727497 4.464827 4.451501 4.4330916 4.4099197 4.3823037 4.3505564 4.314986 4.2758927 4.233568 4.188295 4.1403437 4.0899763 4.0374417 3.9829786 3.9268126 3.869158 3.8102176 3.750182 3.6892307 3.627532 3.5652432 3.5025108 3.4394712 3.376251 3.3129678 3.2497292 3.1866353 3.123777 3.061238 2.9990952 2.9374173 2.8762677 2.8157024 2.755773 2.6965249 2.6379986 2.5802298 2.5232499 2.4670863 2.4117625 2.3572984 2.303711 2.2510138 2.1992178 2.1483316 2.0983613 2.0493104 2.0011814 1.9539738 1.9076865 1.8623164 1.8178592 1.7743093 1.7316599 1.6899035 1.6490314 1.6090343 1.5699022 1.5316242 1.4941894 1.4575858 1.4218016 1.386824 1.3526406 1.3192382 1.2866036 1.2547237 1.2235847 1.1931733 1.1634759 1.1344788 1.1061686 1.0785315 1.0515542 1.0252231 0.9995251 0.9744468 0.949975 0.9260969 0.90279967 0.88007057 0.85789704 0.8362669 0.81516784 0.79458797 0.7745155 0.7549388 0.73584646 0.71722734 0.6990704 0.68136483 0.66410005 0.6472657 0.63085145 0.6148474 0.59924376 0.5840309 0.56919944 0.5547402 0.5406441 0.5269024 0.5135064 0.5004478 0.4877182 0.47530964 0.46321416 0.4514241 0.43993193 0.42873025 0.4178119 0.40716985 0.39679724 0.38668737 0.37683368 0.36722982 0.3578695 0.3487467 0.3398554 0.33118987 0.3227444 0.3145135 0.30649176 0.29867393 0.29105484 0.28362957 0.27639315 0.26934084 0.262468 0.25577015 0.24924278 0.24288163 0.23668249 0.23064125 0.2247539 0.21901658 0.21342546 0.20797683 0.20266709 0.1974927 0.19245026 0.18753637 0.1827478 0.17808135 0.17353392 0.16910249 0.16478412 0.1605759 0.15647505 0.15247886 0.14858462 0.14478977 0.14109176 0.13748814 0.13397649 0.13055448 0.12721981 0.12397028 0.1208037 0.11771797 0.11471101 0.11178082 0.108925454 0.106143 0.10343158 0.100789405 0.0982147 0.09570575 0.09326086 0.09087841 0.08855681 0.086294495 0.084089965 0.08194173 0.07984837 0.07780848 0.075820684 0.07388366 0.071996115 0.07015678 0.068364434 0.06661787 0.06491592 0.06325744 0.061641328 0.0600665 0.058531895 0.057036497 0.0555793 0.054159325 0.05277563 0.05142728 0.050113373

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.436" PeakHeight="110.0" Num="3" Error="0.0">
-21.087 3.587 -0.282
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.436" EndFrequency="4.475" PeakHeight="250.127" Num="5" zHalfNm="233.322" Error="1.121">
-46.206 -8.476 5.798 -3.048 1.032
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.009" EndDistance="6480.001" A="-8.3368103E11" B="2.5730896E8" C="-19853.896" Error="0.00587"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6509.742" A="-3.02221099E11" B="9.3278112E7" C="-7197.1953" Error="0.00437"/>
<QuasiParabolic ID="2" StartDistance="6509.742" EndDistance="6539.485" A="0.0" B="-1144.3729" C="0.21564922" Error="0.0164"/>
<QuasiParabolic ID="3" StartDistance="6539.485" EndDistance="6568.0" A="1.26800814E11" B="-3.890596E7" C="2984.3628" Error="0.0164"/>
<QuasiParabolic ID="4" StartDistance="6568.0" EndDistance="6570.0" A="1.55742886E13" B="-4.7427692E9" C="361073.84" Error="0.036"/>
<QuasiParabolic ID="5" StartDistance="6570.0" EndDistance="6577.0" A="7.1724234E12" B="-2.1851241E9" C="166428.08" Error="0.0192"/>
<QuasiParabolic ID="6" StartDistance="6577.0" EndDistance="6582.0" A="2.32559854E13" B="-7.0759747E9" C="538242.8" Error="0.00558"/>
<QuasiParabolic ID="7" StartDistance="6582.0" EndDistance="6611.0" A="1.60429318E13" B="-4.8842235E9" C="371746.94" Error="0.0191"/>
<QuasiParabolic ID="8" StartDistance="6611.0" EndDistance="6617.0" A="-6.6654852E12" B="1.98566541E9" C="-147833.22" Error="0.00348"/>
<QuasiParabolic ID="9" StartDistance="6617.0" EndDistance="6620.127" A="-2.03052313E14" B="6.1343937E10" C="-4633119.0" Error="0.00144"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.227" Depth="0.236"/>
<TopsideChapman PeakHeight="250.127" PeakDensity="248456.89" PeakScaleHeight="12.074" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
