<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-13 -133 02:00:00.000"
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: 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" >
2026.05.13 (133) 02:00:00</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">
FF202613305130200001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.503" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.773" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.775" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.775" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" 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="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.749" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.775" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.775" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="274.518" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.115" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.181" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="32.069" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.868" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.311" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.940" 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" >
2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05 3.075
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 286.057 287.303 288.793 290.608 292.865 295.749 299.564 304.848 312.650 325.333 349.564 414.298
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 42 0 0 0 0 66 69 75 75 102 90 84
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -1.5625 -10.9375 -10.9375 -1.5625 -10.9375 -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="442">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.29367 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.58733 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.881 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 274.518 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0
</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 0.35321164 0.35265058 0.35186794 0.350941 0.34979865 0.3485186 0.34703198 0.34541664 0.34353504 0.3415376 0.3392915 0.33687705 0.33430392 0.33151683 0.32846653 0.32523605 0.3218422 0.31812388 0.31423062 0.31007525 0.30569482 0.30102423 0.29604208 0.29083666 0.28529245 0.27942026 0.27317676 0.26656657 0.25951338 0.25204512 0.2441418 0.23564968 0.22663282 0.21703564 0.20668782 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 0.2 0.20170406 0.20583345 0.20996283 0.21409222 0.2182216 0.222351 0.22648038 0.23060977 0.23473915 0.23886855 0.24299793 0.24712732 0.2512567 0.25538608 0.2595155 0.26364487 0.26777425 0.27190363 0.27603304 0.28016242 0.2842918 0.28842118 0.2925506 0.29667997 0.30080935 0.30493873 0.30906814 0.31319752 0.3173269 0.32145628 0.3255857 0.32971507 0.33384445 0.33797383 0.34210324 0.34623262 0.350362 0.354 0.3566676 0.38125914 0.41010848 0.4434674 0.48113185 0.52244276 0.5665427 0.6126844 0.6603162 0.7091545 0.75910777 0.8101885 0.8624924 0.9161542 0.97136396 1.0282754 1.0871215 1.1480901 1.2113932 1.2772235 1.345762 1.4171628 1.4915221 1.5688404 1.6490482 1.731882 1.8169335 1.9035965 1.9910549 2.0783844 2.1645787 2.2486386 2.3297036 2.4070582 2.4801755 2.5487196 2.6125453 2.6716082 2.7259593 2.7757301 2.8210664 2.8621383 2.8991137 2.9321783 2.9614809 2.9871724 3.0093758 3.0282052 3.0437624 3.056125 3.065355 3.0715008 3.0745928 3.075 3.0747685 3.0728385 3.069013 3.0633662 3.0559723 3.0469067 3.0362437 3.0240579 3.0104227 2.9954112 2.9790955 2.961546 2.9428322 2.9230225 2.9021833 2.8803794 2.8576741 2.8341286 2.8098025 2.7847538 2.7590382 2.7327096 2.7058203 2.6784198 2.6505568 2.6222773 2.5936255 2.5646443 2.5353742 2.505854 2.4761205 2.4462094 2.4161541 2.3859868 2.3557377 2.3254354 2.2951074 2.2647793 2.2344759 2.2042196 2.1740324 2.1439345 2.113945 2.0840821 2.0543623 2.0248015 1.9954143 1.9662142 1.937214 1.9084255 1.8798594 1.851526 1.8234342 1.7955928 1.7680093 1.7406908 1.7136438 1.6868739 1.6603863 1.6341857 1.6082761 1.5826612 1.5573438 1.5323269 1.5076125 1.4832025 1.4590982 1.4353008 1.411811 1.3886293 1.3657558 1.3431903 1.3209325 1.2989817 1.277337 1.2559973 1.2349614 1.2142278 1.1937947 1.1736606 1.1538235 1.134281 1.1150314 1.096072 1.0774004 1.0590143 1.040911 1.0230877 1.0055418 0.98827034 0.97127056 0.9545395 0.9380741 0.9218714 0.90592843 0.890242 0.874809 0.8596264 0.8446909 0.82999957 0.815549 0.80133617 0.7873579 0.773611 0.76009226 0.7467986 0.7337268 0.7208738 0.7082364 0.69581145 0.683596 0.6715869 0.65978104 0.6481754 0.6367671 0.625553 0.6145302 0.60369575 0.5930468 0.5825804 0.57229376 0.562184 0.5522483 0.542484 0.5328883 0.52345854 0.51419204 0.5050861 0.49613824 0.4873458 0.47870627 0.47021717 0.46187595 0.45368025 0.44562763 0.4377157 0.42994216 0.42230466 0.41480097 0.4074288 0.40018594 0.39307025 0.38607958 0.37921178 0.37246478 0.36583653 0.359325 0.35292822 0.34664422 0.34047106 0.33440682 0.3284497 0.3225978 0.31684932 0.31120247 0.3056555 0.3002067 0.29485434 0.2895968 0.28443238 0.2793595 0.2743765 0.2694819 0.26467413 0.25995168 0.25531304 0.25075674 0.24628139 0.24188553 0.23756777 0.23332675 0.22916113 0.22506957 0.22105078 0.21710348 0.21322641 0.20941834 0.20567805 0.20200434 0.19839606 0.19485202 0.19137111 0.1879522 0.18459421 0.18129607 0.1780567 0.17487507 0.17175016 0.16868095 0.16566649 0.16270578 0.15979786 0.15694183 0.15413673 0.15138169 0.1486758 0.14601819 0.14340803 0.14084443 0.1383266 0.13585371 0.13342497 0.13103959 0.1286968 0.12639584 0.12413596 0.12191645 0.11973658 0.117595635 0.11549294 0.113427795 0.111399546 0.10940753 0.1074511 0.10552963 0.103642486 0.10178906 0.099968754 0.09818097 0.096425146 0.094700694 0.09300706 0.09134369 0.08971006 0.08810563 0.086529866 0.08498227 0.08346234 0.08196958 0.08050351 0.07906365 0.07764952 0.07626068 0.07489666 0.073557034 0.07224136 0.070949204 0.069680154 0.0684338 0.06720972 0.06600754 0.064826846 0.063667275 0.06252843 0.061409954 0.060311478 0.059232645 0.058173105 0.057132512 0.05611053 0.055106826 0.05412107 0.053152945 0.05220213 0.051268324 0.050351217

</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="3.075" PeakHeight="274.518" Num="5" zHalfNm="252.115" Error="1.794">
-55.245 4.838 -3.362 1.941 -0.809
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6517.294" A="-1.09359399E11" B="3.37529E7" C="-2604.2651" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6517.294" EndDistance="6554.587" A="0.0" B="-469.29315" C="0.11204294" Error="0.0111"/>
<QuasiParabolic ID="3" StartDistance="6554.587" EndDistance="6589.0" A="3.8097535E10" B="-1.169048E7" C="896.83734" Error="0.0111"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6591.0" A="-3.16026847E11" B="9.5799088E7" C="-7259.9067" Error="6.52E-4"/>
<QuasiParabolic ID="5" StartDistance="6591.0" EndDistance="6594.0" A="8.181779E12" B="-2.48280986E9" C="188356.0" Error="0.0124"/>
<QuasiParabolic ID="6" StartDistance="6594.0" EndDistance="6596.0" A="3.83880842E12" B="-1.1655607E9" C="88473.6" Error="0.0076"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6608.0" A="6.8012223E12" B="-2.06380621E9" C="156563.77" Error="0.0116"/>
<QuasiParabolic ID="8" StartDistance="6608.0" EndDistance="6618.0" A="1.74334893E13" B="-5.2818048E9" C="400056.4" Error="0.00874"/>
<QuasiParabolic ID="9" StartDistance="6618.0" EndDistance="6624.0" A="1.48272998E13" B="-4.4941983E9" C="340551.53" Error="0.00768"/>
<QuasiParabolic ID="10" StartDistance="6624.0" EndDistance="6644.518" A="-1.8615915E13" B="5.6033905E9" C="-421645.72" Error="0.00323"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.881" Depth="0.154"/>
<TopsideChapman PeakHeight="274.518" PeakDensity="117315.445" PeakScaleHeight="17.311" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
