<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 05:55:00.000"
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="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: 95% PACIFIC flags: Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 05:55:00</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">
FF202612405040555001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.556" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.891" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="3.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="259.787" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="239.119" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.706" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.615" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.096" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.776" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.560" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.420" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="26">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.525 3.55 3.575 3.6 3.625
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 250.000 252.500 255.000 255.000 257.500 257.500 257.500 260.000 262.500 265.000 267.500 267.500 272.500 275.000 280.000 282.500 287.500 290.000 292.500 295.000 310.000 314.431 321.417 334.060 363.917
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 81 84 93 93 96 99 99 99 99 102 99 96 93 87 90 93 96 99 84 84 81 78 84 78 72
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="412">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 259.787 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0
</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 0.35354906 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.3861118 0.4211146 0.45878235 0.49889997 0.54128784 0.5858418 0.63250554 0.6812838 0.7322203 0.7853983 0.8409135 0.8989011 0.9595079 1.0228752 1.089183 1.15857 1.2312051 1.3072165 1.3867207 1.4697818 1.55642 1.6465669 1.7400757 1.8366717 1.9359444 2.037387 2.1403553 2.2440763 2.3477256 2.4504554 2.5514288 2.6498318 2.7449887 2.8362985 2.9232728 3.0055492 3.0828767 3.1550677 3.2220266 3.2837 3.3400903 3.3912156 3.437119 3.477874 3.513524 3.5441418 3.56978 3.5904977 3.606338 3.6173341 3.623514 3.625 3.6249356 3.6229408 3.6182396 3.6109474 3.6011803 3.5890548 3.5746875 3.5581937 3.5396876 3.5192823 3.4970887 3.4732156 3.4477699 3.420855 3.3925722 3.36302 3.3322933 3.3004844 3.267682 3.2339718 3.1994362 3.1641543 3.1282017 3.091651 3.0545714 3.017029 2.9790869 2.9408045 2.902239 2.8634443 2.8244715 2.7853682 2.7461805 2.7069511 2.6677206 2.6285262 2.5894043 2.5503876 2.5115077 2.472793 2.4342713 2.3959675 2.3579044 2.3201044 2.2825866 2.24537 2.2084708 2.171905 2.1356864 2.0998275 2.0643404 2.029235 1.9945205 1.9602057 1.9262977 1.8928026 1.8597263 1.8270732 1.7948475 1.7630522 1.73169 1.700763 1.6702722 1.6402186 1.6106024 1.5814235 1.5526812 1.5243744 1.4965018 1.4690615 1.4420514 1.4154692 1.3893119 1.3635769 1.3382608 1.3133602 1.2888715 1.264791 1.2411146 1.2178384 1.194958 1.1724691 1.1503674 1.128648 1.1073067 1.0863385 1.0657388 1.0455028 1.0256255 1.0061022 0.986928 0.9680978 0.94960684 0.9314501 0.91362274 0.89611965 0.87893605 0.86206704 0.8455076 0.829253 0.8132984 0.7976389 0.7822698 0.7671863 0.75238377 0.7378575 0.72360295 0.7096154 0.69589055 0.6824237 0.66921055 0.65624666 0.6435278 0.63104963 0.6188079 0.6067985 0.5950173 0.5834603 0.5721234 0.56100273 0.55009437 0.5393945 0.5288993 0.5186052 0.5085083 0.49860522 0.4888923 0.47936603 0.470023 0.46085984 0.45187318 0.44305977 0.43441635 0.4259398 0.41762695 0.40947476 0.40148023 0.3936404 0.38595232 0.37841314 0.37102008 0.36377034 0.35666123 0.34969008 0.34285423 0.33615115 0.3295783 0.32313323 0.31681344 0.31061655 0.30454025 0.2985822 0.2927401 0.2870118 0.2813951 0.27588782 0.27048784 0.26519316 0.26000172 0.2549115 0.2499206 0.24502708 0.24022906 0.23552468 0.23091216 0.22638969 0.22195555 0.21760803 0.21334544 0.20916614 0.20506851 0.20105097 0.19711195 0.19324996 0.18946347 0.18575102 0.18211117 0.17854252 0.17504369 0.1716133 0.16825004 0.16495258 0.16171965 0.15854998 0.15544237 0.15239558 0.14940843 0.14647976 0.14360842 0.14079332 0.13803333 0.1353274 0.13267446 0.13007346 0.12752342 0.12502332 0.1225722 0.12016909 0.11781306 0.115503184 0.113238566 0.111018315 0.10884157 0.106707476 0.1046152 0.10256392 0.10055284 0.09858117 0.09664814 0.094753 0.092895 0.091073416 0.089287534 0.087536655 0.0858201 0.084137194 0.08248727 0.08086969 0.07928382 0.07772904 0.07620474 0.07471032 0.0732452 0.0718088 0.070400566 0.069019936 0.06766638 0.06633936 0.06503835 0.06376286 0.062512375 0.06128641 0.06008448 0.05890612 0.057750862 0.05661826 0.055507865 0.05441924 0.053351965 0.05230562 0.05127979 0.050274078

</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="3.625" PeakHeight="259.787" Num="5" zHalfNm="239.119" Error="1.632">
-53.008 2.531 -2.205 1.22 -0.325
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="-52.79969" C="0.048134763" Error="0.0017"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6577.0" A="4.2837414E10" B="-1.3169321E7" C="1012.1498" Error="0.0017"/>
<QuasiParabolic ID="4" StartDistance="6577.0" EndDistance="6579.0" A="9.7456635E12" B="-2.96370176E9" C="225319.02" Error="2.39E-10"/>
<QuasiParabolic ID="5" StartDistance="6579.0" EndDistance="6587.0" A="5.7122845E12" B="-1.73756442E9" C="132133.31" Error="0.00873"/>
<QuasiParabolic ID="6" StartDistance="6587.0" EndDistance="6594.0" A="1.13516426E13" B="-3.44983347E9" C="262106.67" Error="0.0039"/>
<QuasiParabolic ID="7" StartDistance="6594.0" EndDistance="6608.0" A="2.40618559E13" B="-7.304918E9" C="554424.25" Error="0.00979"/>
<QuasiParabolic ID="8" StartDistance="6608.0" EndDistance="6616.0" A="-4.9243058E12" B="1.4681335E9" C="-109396.195" Error="0.0062"/>
<QuasiParabolic ID="9" StartDistance="6616.0" EndDistance="6629.787" A="-3.25647566E13" B="9.8237716E9" C="-740868.25" Error="0.00313"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="259.787" PeakDensity="163035.05" PeakScaleHeight="15.776" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
