<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 02:40:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 80% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.12 (132) 02:40:00</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">
FF202613205120240001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.685" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.977" 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="3.625" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="262.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="262.500" 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="84" Val="8.500" Name="QF" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.000" 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="256.835" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="239.669" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.914" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.575" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.746" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.337" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.170" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.230" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="13">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 263.411 264.483 265.766 267.325 269.263 271.735 275.000 279.509 286.143 296.866 317.141 369.987
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 66 66 78 78 84 90 84 84 90 84 81 90
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="368">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.58333 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.16667 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.75 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 256.835 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0
</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 0.35362422 0.35313663 0.35250106 0.35164472 0.35064512 0.34935787 0.34793577 0.3463105 0.34448874 0.34247804 0.3402866 0.3378549 0.33519608 0.33232448 0.32919082 0.32587904 0.32228336 0.31849188 0.31441292 0.31008333 0.3054338 0.30051735 0.2952657 0.28973025 0.2838154 0.27755383 0.2709269 0.2638273 0.2562852 0.24823268 0.23961297 0.23044473 0.2206037 0.2100604 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 0.2 0.2 0.2 0.2 0.20360656 0.20793442 0.21226229 0.21659017 0.22091803 0.22524591 0.22957377 0.23390163 0.23822951 0.24255738 0.24688524 0.2512131 0.255541 0.25986886 0.26419672 0.2685246 0.27285245 0.2771803 0.2815082 0.28583607 0.29016393 0.2944918 0.29881966 0.30314755 0.30747542 0.31180328 0.31613114 0.320459 0.32478687 0.32911476 0.33344263 0.3377705 0.34209836 0.34642622 0.3507541 0.354 0.36098194 0.39346004 0.43459013 0.4851967 0.5439534 0.6080577 0.675108 0.74395347 0.8143328 0.8864707 0.9608178 1.0379087 1.1183778 1.2028477 1.2920452 1.3866178 1.4872562 1.594469 1.7084484 1.8289057 1.954739 2.0838184 2.2131488 2.339322 2.4592433 2.5706728 2.6723604 2.7639387 2.8456113 2.9179049 2.9814596 3.036933 3.0849395 3.1260333 3.1606643 3.1892388 3.212065 3.2293887 3.2414002 3.2482238 3.25 3.2499516 3.2476227 3.2419224 3.2330227 3.221096 3.206315 3.1888516 3.1688752 3.1465528 3.1220484 3.0955212 3.067127 3.037016 3.0053334 2.9722197 2.937809 2.9022305 2.8656068 2.8280556 2.7896883 2.7506108 2.7109232 2.67072 2.630091 2.5891192 2.547884 2.506459 2.464913 2.4233103 2.3817108 2.3401701 2.29874 2.2574675 2.216397 2.1755686 2.1350193 2.094783 2.0548904 2.01537 1.9762462 1.9375427 1.8992795 1.8614749 1.824145 1.787304 1.7509644 1.7151368 1.6798302 1.6450522 1.6108091 1.5771058 1.5439461 1.5113328 1.4792672 1.4477506 1.4167823 1.3863617 1.3564872 1.3271563 1.2983663 1.2701137 1.2423944 1.2152041 1.1885381 1.162391 1.1367574 1.1116315 1.0870073 1.0628783 1.0392381 1.0160801 0.9933974 0.9711831 0.94943017 0.92813134 0.9072795 0.88686734 0.8668876 0.84733295 0.8281961 0.80946964 0.79114634 0.77321887 0.75568 0.7385225 0.7217392 0.705323 0.6892668 0.6735637 0.65820676 0.6431891 0.628504 0.61414474 0.6001048 0.5863777 0.5729569 0.55983615 0.5470093 0.5344701 0.5222126 0.51023084 0.49851897 0.48707128 0.47588208 0.4649459 0.45425725 0.4438108 0.43360126 0.42362353 0.41387257 0.40434337 0.3950311 0.38593096 0.37703833 0.36834857 0.3598572 0.35155985 0.34345216 0.33552995 0.32778907 0.32022542 0.3128351 0.30561417 0.29855886 0.2916654 0.2849302 0.27834967 0.2719203 0.26563868 0.2595015 0.2535054 0.24764727 0.24192394 0.23633236 0.23086952 0.22553247 0.22031839 0.21522446 0.21024792 0.2053861 0.20063639 0.19599621 0.19146307 0.1870345 0.18270814 0.17848161 0.17435265 0.170319 0.1663785 0.16252898 0.15876837 0.15509462 0.15150574 0.14799978 0.14457482 0.14122902 0.13796054 0.13476759 0.13164847 0.12860143 0.12562485 0.1227171 0.11987657 0.11710173 0.11439106 0.11174308 0.10915634 0.10662944 0.10416099 0.101749636 0.09939407 0.097093 0.09484517 0.09264934 0.090504326 0.08840894 0.08636205 0.084362514 0.08240926 0.080501206 0.07863731 0.07681655 0.075037934 0.07330049 0.07160325 0.0699453 0.06832573 0.06674364 0.065198176 0.06368849 0.06221375 0.06077315 0.0593659 0.057991225 0.056648374 0.055336617 0.054055225 0.052803498 0.051580753 0.05038632

</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="3.25" PeakHeight="256.835" Num="5" zHalfNm="239.669" Error="1.753">
-42.592 4.694 -3.239 1.86 -0.808
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="13" 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="6515.583" A="-1.20064901E11" B="3.7057068E7" C="-2859.2163" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.583" EndDistance="6551.167" A="0.0" B="-847.7238" C="0.17014365" Error="0.0186"/>
<QuasiParabolic ID="3" StartDistance="6551.167" EndDistance="6553.0" A="3.4464651E12" B="-1.05199987E9" C="80278.22" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6577.0" A="-3.8840197E10" B="1.1728279E7" C="-885.233" Error="0.0787"/>
<QuasiParabolic ID="5" StartDistance="6577.0" EndDistance="6587.0" A="2.50320208E11" B="-7.6202512E7" C="5799.486" Error="0.0231"/>
<QuasiParabolic ID="6" StartDistance="6587.0" EndDistance="6588.0" A="3.7541466E13" B="-1.13988516E10" C="865268.8" Error="8.93E-10"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6589.0" A="-1.54590637E13" B="4.6911693E9" C="-355892.44" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6589.0" EndDistance="6592.0" A="1.91022278E13" B="-5.7994337E9" C="440177.0" Error="0.0282"/>
<QuasiParabolic ID="9" StartDistance="6592.0" EndDistance="6597.0" A="8.7736467E12" B="-2.6657623E9" C="202489.53" Error="0.0163"/>
<QuasiParabolic ID="10" StartDistance="6597.0" EndDistance="6600.0" A="2.23877477E13" B="-6.7931238E9" C="515310.62" Error="0.00669"/>
<QuasiParabolic ID="11" StartDistance="6600.0" EndDistance="6610.0" A="3.8052362E13" B="-1.15399762E10" C="874920.7" Error="0.0156"/>
<QuasiParabolic ID="12" StartDistance="6610.0" EndDistance="6626.835" A="-3.43484305E13" B="1.0366466E10" C="-782147.6" Error="0.00613"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.75" Depth="0.154"/>
<TopsideChapman PeakHeight="256.835" PeakDensity="131048.39" PeakScaleHeight="13.337" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
