<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-15 -135 01:05:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 25% 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, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.15 (135) 01:05:00</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">
FF202613505150105001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.401" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.118" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="292.742" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="292.742" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="305.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="278.704" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="255.308" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.564" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="33.456" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.838" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.603" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.730" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.050" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="12">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
292.742 295.000 297.500 302.500 305.000 310.000 315.000 322.500 330.000 337.500 350.000 364.805
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -1.5625 -1.5625 10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="449">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.774 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.548 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 220.322 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 278.704 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0
</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 0.35257575 0.35179353 0.35086703 0.34965155 0.3483728 0.34681517 0.34513053 0.34325263 0.34118918 0.33887967 0.33640453 0.33370706 0.3308671 0.327736 0.32439914 0.32084575 0.31709883 0.31306785 0.30873394 0.3041945 0.2993867 0.2942912 0.28881237 0.28304476 0.27700293 0.27049828 0.26364812 0.25631365 0.24853204 0.240238 0.23139663 0.22198378 0.21189357 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 0.20189285 0.2060806 0.21026835 0.21445608 0.21864383 0.22283156 0.22701931 0.23120704 0.23539479 0.23958252 0.24377027 0.24795802 0.25214577 0.2563335 0.26052123 0.26470897 0.26889673 0.27308446 0.2772722 0.28145996 0.2856477 0.28983542 0.29402316 0.29821092 0.30239865 0.30658638 0.31077415 0.31496188 0.3191496 0.32333735 0.3275251 0.33171284 0.33590057 0.34008834 0.34427607 0.3484638 0.35265154 0.354 0.37101716 0.39747974 0.42559075 0.4553791 0.48686668 0.5200726 0.55500335 0.5916618 0.630047 0.67014873 0.7119562 0.7554484 0.8006109 0.8473927 0.8957732 0.94571066 0.9971504 1.0500401 1.1043134 1.1599107 1.2167568 1.2747605 1.3338469 1.3939103 1.4548513 1.5165633 1.5789189 1.6417933 1.7050604 1.7685806 1.8321911 1.8957609 1.9591211 2.022102 2.0845516 2.1462781 2.2071147 2.2668712 2.3253706 2.3824272 2.4378724 2.4914982 2.5431418 2.5926168 2.6397495 2.6843774 2.7263281 2.7654564 2.8015995 2.834636 2.8644283 2.8908632 2.913836 2.933256 2.949045 2.9611368 2.9694865 2.9740582 2.975 2.9749181 2.9734495 2.970193 2.9652164 2.9585888 2.950379 2.9406552 2.9294865 2.916941 2.9030855 2.8879867 2.8717103 2.8543205 2.8358805 2.816452 2.7960956 2.77487 2.7528322 2.730038 2.7065413 2.6823945 2.6576478 2.6323507 2.6065495 2.5802896 2.553615 2.5265675 2.4991868 2.4715118 2.4435792 2.4154239 2.38708 2.358579 2.3299518 2.301227 2.2724328 2.2435946 2.2147377 2.1858852 2.1570597 2.1282816 2.099571 2.0709465 2.0424254 2.014024 1.9857581 1.9576416 1.9296881 1.9019102 1.8743193 1.8469266 1.8197417 1.7927742 1.7660325 1.7395242 1.7132568 1.6872367 1.6614699 1.6359617 1.6107169 1.58574 1.5610347 1.5366044 1.512452 1.4885801 1.4649907 1.4416858 1.4186666 1.3959342 1.3734895 1.3513329 1.3294647 1.3078848 1.2865928 1.2655884 1.2448708 1.224439 1.204292 1.1844286 1.1648473 1.1455463 1.1265242 1.1077789 1.0893086 1.0711112 1.0531845 1.0355263 1.0181341 1.0010056 0.98413837 0.96752965 0.95117694 0.9350776 0.91922885 0.903628 0.88827217 0.8731587 0.8582846 0.8436471 0.8292433 0.8150703 0.80112517 0.787405 0.7739069 0.760628 0.74756527 0.7347159 0.7220769 0.7096454 0.6974185 0.68539345 0.6735672 0.661937 0.6505 0.63925344 0.62819445 0.6173203 0.6066282 0.59611547 0.58577937 0.57561725 0.56562644 0.5558043 0.5461483 0.5366558 0.5273242 0.51815104 0.5091339 0.5002702 0.49155757 0.48299357 0.47457585 0.46630207 0.45816988 0.45017704 0.44232124 0.43460032 0.427012 0.41955417 0.4122247 0.40502143 0.39794233 0.3909853 0.38414836 0.37742952 0.37082678 0.36433825 0.35796198 0.35169613 0.34553882 0.33948827 0.33354262 0.32770017 0.3219591 0.3163178 0.3107745 0.30532756 0.29997537 0.2947163 0.28954878 0.2844712 0.27948213 0.27457994 0.26976323 0.2650305 0.26038033 0.25581127 0.25132197 0.24691105 0.24257714 0.23831895 0.23413515 0.23002447 0.22598565 0.22201744 0.21811862 0.21428801 0.21052442 0.20682669 0.20319368 0.19962427 0.19611736 0.19267185 0.1892867 0.18596084 0.18269326 0.17948294 0.17632888 0.17323011 0.17018566 0.16719458 0.16425596 0.16136886 0.15853241 0.15574571 0.15300791 0.15031813 0.14767556 0.14507936 0.14252871 0.14002284 0.13756095 0.13514228 0.13276608 0.13043159 0.12813811 0.12588489 0.12367123 0.12149646 0.11935989 0.11726084 0.11519867 0.113172725 0.11118237 0.10922698 0.10730595 0.105418675 0.10356456 0.101743035 0.09995351 0.09819544 0.09646827 0.09477145 0.09310446 0.09146677 0.08985786 0.08827724 0.0867244 0.085198864 0.08370014 0.082227774 0.08078129 0.07936024 0.07796417 0.076592654 0.07524525 0.07392153 0.0726211 0.071343526 0.070088424 0.0688554 0.067644045 0.066454 0.065284885 0.064136334 0.06300798 0.06189947 0.06081045 0.05974059 0.058689546 0.05765699 0.056642592 0.05564604 0.054667015 0.053705208 0.05276032 0.051832058 0.050920118 0.050024223

</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="2.975" PeakHeight="278.704" Num="5" zHalfNm="255.308" Error="0.733">
-58.113 -0.264 0.072 -0.066 -0.011
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6516.774" A="-1.12449323E11" B="3.470658E7" C="-2677.8516" Error="0.00176"/>
<QuasiParabolic ID="2" StartDistance="6516.774" EndDistance="6553.548" A="0.0" B="-306.97113" C="0.08714548" Error="0.00763"/>
<QuasiParabolic ID="3" StartDistance="6553.548" EndDistance="6556.0" A="1.01055293E12" B="-3.08404192E8" C="23530.018" Error="0.0194"/>
<QuasiParabolic ID="4" StartDistance="6556.0" EndDistance="6559.0" A="-3.69443111E11" B="1.12583008E8" C="-8576.999" Error="0.0193"/>
<QuasiParabolic ID="5" StartDistance="6559.0" EndDistance="6587.0" A="4.8215081E10" B="-1.4771224E7" C="1131.3577" Error="0.0178"/>
<QuasiParabolic ID="6" StartDistance="6587.0" EndDistance="6589.0" A="-5.0182452E11" B="1.522364E8" C="-11545.704" Error="6.55E-4"/>
<QuasiParabolic ID="7" StartDistance="6589.0" EndDistance="6592.0" A="6.3555125E12" B="-1.92921357E9" C="146403.16" Error="0.0134"/>
<QuasiParabolic ID="8" StartDistance="6592.0" EndDistance="6600.0" A="3.36246237E12" B="-1.02112794E9" C="77525.3" Error="0.0133"/>
<QuasiParabolic ID="9" StartDistance="6600.0" EndDistance="6629.0" A="7.9366864E12" B="-2.40725658E9" C="182535.03" Error="0.0178"/>
<QuasiParabolic ID="10" StartDistance="6629.0" EndDistance="6640.0" A="-8.7322887E12" B="2.62185037E9" C="-196791.19" Error="0.00265"/>
<QuasiParabolic ID="11" StartDistance="6640.0" EndDistance="6648.704" A="-2.11935727E13" B="6.3752494E9" C="-479426.62" Error="0.00104"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="110.322" Depth="0.154"/>
<TopsideChapman PeakHeight="278.704" PeakDensity="109809.24" PeakScaleHeight="17.603" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
