<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-15 -074 03:30:00.000"
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: 75% PACIFIC flags: Multiple candidates for F2x cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.15 (074) 03:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607403150330001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.484" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.978" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="277.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="277.500" 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="86" Val="0.225" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="324.433" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="283.301" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.088" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.051" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.765" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.027" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.108" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.250" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="70">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 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 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 3.65 3.675 3.7 3.725
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
277.500 277.500 277.500 277.500 277.500 277.500 277.500 280.000 282.500 282.500 282.500 282.500 282.500 282.500 282.500 285.000 285.000 287.500 287.500 287.500 287.500 290.000 290.000 290.000 287.500 287.500 290.000 292.500 292.500 292.500 292.500 293.750 295.000 295.833 296.667 297.500 298.333 299.167 300.000 300.000 300.000 300.000 302.500 302.500 305.000 305.000 305.000 305.000 305.000 305.000 307.500 307.500 307.500 307.500 307.500 310.000 310.000 310.380 310.804 311.281 311.819 312.434 313.141 313.964 314.933 316.091 317.500 319.250 321.484 324.433
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 51 60 54 57 72 69 60 63 57 57 51 45 45 48 63 66 66 69 75 78 78 75 75 72 63 63 63 66 63 60 0 51 0 0 51 0 0 54 84 87 90 84 87 75 93 96 84 84 81 84 84 78 93 93 93 93 96 93 78 0 63 0 87 90 72 75 0 0 0
</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 -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 -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="397">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.86467 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.72934 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 220.594 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 283.301 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0
</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 0.34972522 0.34837273 0.34688756 0.34520206 0.34332323 0.34125876 0.33894813 0.33647177 0.33383963 0.33093148 0.32789475 0.32455376 0.32105675 0.31724417 0.3132654 0.30897927 0.3044828 0.2996617 0.2945521 0.28915042 0.28344795 0.27737677 0.27099168 0.2641629 0.25686312 0.24917215 0.24096079 0.23220062 0.22279829 0.2127795 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 0.20113069 0.20530814 0.20948558 0.21366303 0.21784046 0.2220179 0.22619535 0.23037279 0.23455022 0.23872767 0.24290511 0.24708256 0.25125998 0.25543743 0.25961488 0.26379234 0.26796976 0.2721472 0.27632466 0.28050208 0.28467953 0.28885698 0.2930344 0.29721186 0.3013893 0.30556673 0.30974418 0.31392163 0.31809905 0.3222765 0.32645395 0.3306314 0.33480883 0.33898628 0.34316373 0.34734115 0.3515186 0.354 0.36595276 0.3961868 0.42785665 0.46126905 0.49663368 0.5341028 0.5737602 0.61559933 0.6595578 0.70549077 0.75318897 0.802435 0.85297203 0.9045634 0.9569603 1.0099994 1.0634824 1.1173029 1.171348 1.2255492 1.279849 1.3342098 1.3886114 1.4430497 1.4975339 1.5520599 1.6066437 1.6613028 1.7160552 1.770926 1.8259454 1.8811326 1.9365308 1.9921476 2.048031 2.104198 2.160697 2.2175539 2.2747939 2.3324714 2.3906069 2.4492574 2.5084348 2.5682087 2.6286113 2.6896741 2.7514436 2.8139696 2.8772757 2.9414215 3.0064168 3.0722818 3.1390119 3.2065556 3.2748024 3.3435383 3.41235 3.4805322 3.546797 3.6089134 3.6631448 3.7037523 3.72382 3.725 3.723977 3.7190552 3.7102475 3.6977623 3.6818085 3.6625936 3.6403234 3.6152012 3.5874257 3.5571914 3.5246873 3.4900968 3.4535975 3.4153597 3.3755476 3.3343182 3.2918215 3.2482002 3.2035902 3.1581204 3.1119127 3.0650818 3.0177364 2.9699779 2.9219017 2.8735976 2.8251486 2.7766323 2.728121 2.6796818 2.6313767 2.5832627 2.5353925 2.4878142 2.4405725 2.3937073 2.3472557 2.3012507 2.2557223 2.2106974 2.1662004 2.1222522 2.0788722 2.0360765 1.9938797 1.9522939 1.9113294 1.870995 1.8312976 1.7922426 1.7538341 1.7160748 1.678966 1.6425084 1.6067013 1.5715431 1.5370315 1.5031633 1.4699347 1.4373411 1.4053775 1.3740382 1.3433173 1.313208 1.2837036 1.2547969 1.2264802 1.198746 1.171586 1.1449922 1.1189562 1.0934696 1.0685236 1.0441098 1.0202192 0.996843 0.9739725 0.95159876 0.929713 0.90830636 0.88737005 0.8668953 0.84687334 0.82729566 0.8081535 0.7894385 0.7711422 0.75325614 0.7357722 0.7186821 0.70197797 0.6856517 0.6696956 0.65410185 0.63886285 0.6239711 0.6094193 0.5952001 0.5813064 0.5677312 0.55446756 0.5415088 0.5288481 0.5164791 0.50439525 0.49259037 0.4810582 0.46979272 0.45878798 0.4480382 0.43753758 0.42728063 0.41726178 0.40747574 0.39791718 0.388581 0.37946215 0.37055567 0.3618567 0.3533606 0.34506264 0.33695832 0.32904324 0.32131302 0.3137634 0.30639032 0.2991896 0.29215732 0.28528962 0.27858266 0.27203274 0.2656362 0.25938955 0.25328928 0.24733198 0.24151435 0.23583314 0.2302852 0.2248674 0.21957673 0.21441023 0.209365 0.20443822 0.19962713 0.19492902 0.19034125 0.18586127 0.18148653 0.1772146 0.17304306 0.16896954 0.1649918 0.16110756 0.15731463 0.15361089 0.14999422 0.14646263 0.14301409 0.13964666 0.13635844 0.13314758 0.13001224 0.12695068 0.12396116 0.12104197 0.11819147 0.11540806 0.11269015 0.11003621 0.107444726 0.10491424 0.102443315 0.10003056 0.09767459 0.09537409 0.09312775 0.09093429 0.08879247 0.08670108 0.08465893 0.082664855 0.08071774 0.07881647 0.076959975 0.07514719 0.073377095 0.07164868 0.06996097 0.068313 0.06670384 0.06513258 0.06359833 0.0621002 0.06063736 0.05920897 0.05781422 0.056452326 0.055122502 0.053824004 0.052556086 0.051318035 0.05010914

</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="3.725" PeakHeight="283.301" Num="5" zHalfNm="265.088" Error="0.691">
-54.489 -14.726 9.47 -3.668 0.706
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6516.865" A="-1.11897567E11" B="3.4536288E7" C="-2664.7117" Error="0.00182"/>
<QuasiParabolic ID="2" StartDistance="6516.865" EndDistance="6553.729" A="0.0" B="-18.980032" C="0.04295347" Error="0.00144"/>
<QuasiParabolic ID="3" StartDistance="6553.729" EndDistance="6589.0" A="3.25430292E10" B="-1.0002512E7" C="768.6005" Error="0.00472"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6604.0" A="5.4736637E12" B="-1.66157952E9" C="126096.95" Error="0.028"/>
<QuasiParabolic ID="5" StartDistance="6604.0" EndDistance="6649.0" A="7.4031395E12" B="-2.24591514E9" C="170337.98" Error="0.0554"/>
<QuasiParabolic ID="6" StartDistance="6649.0" EndDistance="6651.0" A="-1.51232635E13" B="4.529962E9" C="-339203.06" Error="0.0013"/>
<QuasiParabolic ID="7" StartDistance="6651.0" EndDistance="6653.301" A="-1.70236666E14" B="5.1173593E10" C="-3845715.8" Error="7.83E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="110.594" Depth="0.154"/>
<TopsideChapman PeakHeight="283.301" PeakDensity="172154.16" PeakScaleHeight="13.108" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
