<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 21:45:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.12 (132) 21:45:00</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">
FF202613205122145001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.758" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.152" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.436" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.428" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="245.242" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.221" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.728" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.684" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.014" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.759" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.550" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.925 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 3.425 3.45 3.475 3.5
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 242.500 242.500 245.000 245.000 245.000 245.000 247.500 247.500 250.000 252.500 252.500 253.963 255.707 257.821 260.436 263.755 268.105 274.058 282.698 296.374 321.298 381.048
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 54 60 63 72 72 75 72 90 90 87 81 75 75 99 96 84 81 93 93 78 72 51 51
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="397">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.31 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.011 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.022 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 200.033 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 245.242 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22488184 0.25632152 0.28291053 0.30565602 0.32534352 0.34251454 0.35755694 0.3707435 0.38227415 0.39230457 0.4009474 0.4082934 0.4144102 0.41935128 0.42315567 0.4258534 0.4274644 0.428 0.4278052 0.42727682 0.42636126 0.42511785 0.42344153 0.42145044 0.41907156 0.41631714 0.413122 0.40955785 0.4055928 0.4012009 0.39643613 0.39111277 0.3853738 0.37908304 0.37239364 0.3650282 0.35717162 0.34861466 0.3394351 0.32946086 0.3187462 0.30709192 0.29441136 0.28062767 0.26547062 0.24884722 0.2304818 0.21021022 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 0.20743008 0.21502729 0.22262451 0.23022172 0.23781893 0.24541615 0.25301337 0.26061058 0.2682078 0.275805 0.2834022 0.29099944 0.29859665 0.30619386 0.31379107 0.3213883 0.3289855 0.33658272 0.34417993 0.35177714 0.35937437 0.36697158 0.3745688 0.382166 0.3897632 0.39736044 0.40495765 0.41255486 0.42015207 0.4277493 0.428 0.45802343 0.49665388 0.544028 0.5993825 0.660085 0.7233955 0.787699 0.8524687 0.91774195 0.98385876 1.0512773 1.1204765 1.1920046 1.2664361 1.3443974 1.4265943 1.5137719 1.6067551 1.7063631 1.8133748 1.9282596 2.050908 2.1800606 2.3130696 2.4459329 2.574217 2.6942627 2.8038812 2.9023888 2.9900572 3.067697 3.1362338 3.196636 3.249767 3.296365 3.3370697 3.3724024 3.402791 3.4286063 3.450128 3.4675972 3.481188 3.491044 3.4972591 3.499896 3.5 3.4992173 3.495846 3.4899173 3.4815428 3.4708357 3.4579086 3.442874 3.4258428 3.4069254 3.3862302 3.3638632 3.339929 3.3145292 3.287763 3.2597272 3.2305148 3.2002163 3.1689196 3.1367087 3.1036649 3.0698662 3.035387 3.0002995 2.9646716 2.9285688 2.8920536 2.8551848 2.8180192 2.7806096 2.7430072 2.7052593 2.6674113 2.6295059 2.591583 2.5536804 2.5158336 2.4780755 2.4404376 2.4029481 2.3656347 2.3285222 2.2916338 2.2549913 2.2186146 2.1825218 2.1467302 2.111255 2.0761104 2.041309 2.006863 1.9727826 1.9390771 1.905755 1.8728237 1.8402898 1.8081591 1.7764361 1.7451253 1.7142298 1.6837524 1.6536953 1.6240602 1.5948476 1.5660583 1.5376922 1.5097488 1.4822273 1.4551265 1.4284447 1.4021801 1.3763303 1.3508928 1.3258648 1.3012434 1.2770253 1.2532072 1.2297853 1.206756 1.1841153 1.1618592 1.1399834 1.1184838 1.097356 1.0765954 1.0561976 1.0361581 1.016472 0.9971349 0.97814196 0.95948845 0.94116956 0.92318064 0.9055168 0.8881733 0.8711453 0.8544282 0.838017 0.82190716 0.8060938 0.7905724 0.7753381 0.76038647 0.74571276 0.73131245 0.71718097 0.70331395 0.6897068 0.67635524 0.66325486 0.6504014 0.63779056 0.6254182 0.61328 0.60137206 0.5896902 0.5782305 0.566989 0.5559617 0.5451449 0.5345348 0.5241276 0.51391965 0.5039074 0.49408716 0.4844555 0.47500896 0.4657441 0.45665762 0.44774616 0.43900654 0.43043554 0.42203 0.41378686 0.40570307 0.39777568 0.39000168 0.38237828 0.37490258 0.3675718 0.3603832 0.3533341 0.34642187 0.3396439 0.33299762 0.32648054 0.3200902 0.3138242 0.30768013 0.30165565 0.29574853 0.28995645 0.28427726 0.27870876 0.27324885 0.26789543 0.26264644 0.25749984 0.25245374 0.24750613 0.24265513 0.23789889 0.23323555 0.22866334 0.22418047 0.21978523 0.21547592 0.21125087 0.20710844 0.20304704 0.19906509 0.19516104 0.19133338 0.18758065 0.18390135 0.18029408 0.17675743 0.17329003 0.16989052 0.16655761 0.16328995 0.16008632 0.15694542 0.15386608 0.15084706 0.1478872 0.14498535 0.14214036 0.13935113 0.13661659 0.13393563 0.13130723 0.12873036 0.12620401 0.12372719 0.12129894 0.1189183 0.11658435 0.11429617 0.11205286 0.10985355 0.107697375 0.1055835 0.10351108 0.101479314 0.0994874 0.097534575 0.09562005 0.093743086 0.09190295 0.09009891 0.08833028 0.08659634 0.08489642 0.08322986 0.08159601 0.07999421 0.07842385 0.0768843 0.07537497 0.07389525 0.07244458 0.07102238 0.06962808 0.06826116 0.066921055 0.06560726 0.064319246 0.06305651 0.06181857 0.060604922 0.059415095 0.05824862 0.057105046 0.055983916 0.054884795 0.053807247 0.052750852 0.05171519 0.050699864

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.428" PeakHeight="110.0" Num="3" Error="0.0">
-20.907 3.486 -0.269
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.428" EndFrequency="3.5" PeakHeight="245.242" Num="5" zHalfNm="225.221" Error="2.126">
-48.762 6.683 -4.905 2.901 -1.126
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.013" EndDistance="6480.001" A="-8.0358054E11" B="2.48018688E8" C="-19137.06" Error="0.00549"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6510.011" A="-2.83086291E11" B="8.7372312E7" C="-6741.508" Error="0.00476"/>
<QuasiParabolic ID="2" StartDistance="6510.011" EndDistance="6540.022" A="0.0" B="697.29517" C="-0.06720086" Error="0.0145"/>
<QuasiParabolic ID="3" StartDistance="6540.022" EndDistance="6569.0" A="8.8815272E10" B="-2.7300304E7" C="2097.8967" Error="0.0145"/>
<QuasiParabolic ID="4" StartDistance="6569.0" EndDistance="6574.0" A="1.15704311E13" B="-3.52299674E9" C="268173.16" Error="0.0183"/>
<QuasiParabolic ID="5" StartDistance="6574.0" EndDistance="6575.0" A="1.5020934E13" B="-4.5727396E9" C="348013.62" Error="1.62E-10"/>
<QuasiParabolic ID="6" StartDistance="6575.0" EndDistance="6580.0" A="8.3639906E12" B="-2.54781363E9" C="194026.86" Error="0.00125"/>
<QuasiParabolic ID="7" StartDistance="6580.0" EndDistance="6586.0" A="1.55846883E13" B="-4.7425546E9" C="360800.47" Error="0.00623"/>
<QuasiParabolic ID="8" StartDistance="6586.0" EndDistance="6597.0" A="4.1723414E13" B="-1.26802176E10" C="963416.9" Error="0.0179"/>
<QuasiParabolic ID="9" StartDistance="6597.0" EndDistance="6602.0" A="-6.7184466E13" B="2.03371786E10" C="-1539038.5" Error="0.0101"/>
<QuasiParabolic ID="10" StartDistance="6602.0" EndDistance="6615.242" A="-2.56985761E13" B="7.7695043E9" C="-587230.4" Error="0.00524"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="90.033" Depth="0.228"/>
<TopsideChapman PeakHeight="245.242" PeakDensity="151985.11" PeakScaleHeight="15.759" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
