<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-02 -092 07:25:00.000"
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 F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.02 (092) 07:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609204020725001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.987" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.434" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="192.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="192.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.825" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="230.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="212.754" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="191.687" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.829" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.770" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.194" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.436" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.160" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.920" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="84">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 196.250 197.500 197.500 197.500 197.857 198.214 198.571 198.929 199.286 199.643 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 217.500 217.500 220.000 220.000 222.500 222.500 222.500 225.000 227.500 230.000 230.000 235.000 235.000 237.500 240.000 242.500 246.578 251.516 257.617 265.348 275.462 289.262 309.211
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 99 99 99 99 96 96 96 93 93 93 0 90 90 93 93 0 0 78 0 81 78 78 0 0 0 0 0 0 78 78 90 90 93 96 105 105 96 96 99 96 108 105 105 105 105 105 90 90 93 93 87 90 81 81 57 57 69 69 81 84 105 108 102 108 90 90 87 90 0 99 102 96 66 66 63 63 63 0 63 60 63 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 -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="394">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 129.25 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 148.5 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.75 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 212.754 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0
</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 0.35375586 0.35312265 0.35191265 0.35033494 0.34821823 0.34559593 0.34250996 0.33892286 0.3348177 0.33020067 0.32495445 0.3191686 0.31270903 0.30557105 0.2977397 0.28906867 0.2796508 0.26920512 0.2577122 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.2565974 0.2617922 0.26698703 0.2721818 0.27737662 0.28257143 0.28776625 0.29296103 0.29815584 0.30335066 0.30854544 0.31374025 0.31893507 0.32412988 0.32932466 0.33451948 0.3397143 0.3449091 0.35010388 0.354 0.36173496 0.39789408 0.44388592 0.5005106 0.5662234 0.6381151 0.7139566 0.7927396 0.874429 0.9595234 1.0487936 1.1432723 1.2442493 1.35328 1.4723836 1.60414 1.7519081 1.9201611 2.1144485 2.3407362 2.6021008 2.8910546 3.1846826 3.45677 3.6942668 3.897101 4.0701113 4.2186804 4.3472934 4.4594827 4.5578847 4.644593 4.721137 4.788776 4.8484836 4.9010305 4.947044 4.98702 5.021372 5.0504317 5.074458 5.093664 5.1082077 5.118209 5.123747 5.125 5.1248884 5.1221695 5.1159225 5.1062922 5.093424 5.0774627 5.0585546 5.036844 5.012474 4.9855866 4.9563217 4.9248157 4.8912034 4.855616 4.8181815 4.7790256 4.738268 4.6960273 4.6524167 4.607546 4.561521 4.5144444 4.4664135 4.4175224 4.3678617 4.3175173 4.2665715 4.2151036 4.163188 4.1108966 4.058296 4.0054526 3.9524252 3.899273 3.8460498 3.792807 3.7395937 3.686455 3.633434 3.580571 3.5279033 3.4754663 3.4232929 3.3714137 3.3198571 3.2686496 3.2178154 3.1673772 3.1173556 3.0677698 3.0186372 2.9699738 2.9217937 2.8741105 2.8269353 2.780279 2.7341506 2.6885588 2.6435103 2.5990114 2.5550675 2.511683 2.468861 2.4266047 2.384916 2.3437963 2.303246 2.2632656 2.2238545 2.1850119 2.1467361 2.1090252 2.0718772 2.035289 1.9992578 1.96378 1.9288521 1.89447 1.8606294 1.8273259 1.7945548 1.7623111 1.7305897 1.6993855 1.6686931 1.6385069 1.6088212 1.5796304 1.5509285 1.5227097 1.4949682 1.4676976 1.4408921 1.4145455 1.3886517 1.3632046 1.3381978 1.3136255 1.2894812 1.2657588 1.2424521 1.2195551 1.1970618 1.1749659 1.1532613 1.1319422 1.1110024 1.0904362 1.0702376 1.0504009 1.0309199 1.0117893 0.9930032 0.974556 0.9564423 0.93865633 0.9211929 0.9040464 0.8872117 0.87068343 0.8544564 0.83852565 0.82288593 0.8075323 0.7924599 0.7776638 0.7631393 0.7488816 0.73488605 0.7211481 0.7076632 0.6944269 0.6814348 0.66868263 0.65616614 0.6438811 0.63182336 0.6199889 0.6083738 0.596974 0.5857857 0.5748051 0.5640284 0.55345196 0.54307216 0.53288543 0.52288824 0.5130772 0.5034489 0.49400002 0.48472726 0.47562745 0.46669737 0.45793396 0.44933414 0.4408949 0.43261334 0.42448652 0.4165116 0.40868577 0.4010063 0.39347053 0.38607574 0.37881935 0.37169883 0.3647116 0.35785526 0.35112736 0.3445255 0.33804736 0.33169067 0.32545313 0.31933254 0.31332675 0.3074336 0.301651 0.29597688 0.29040924 0.2849461 0.2795855 0.27432552 0.26916432 0.2641 0.25913078 0.2542549 0.2494706 0.24477617 0.24016994 0.23565024 0.23121548 0.22686404 0.2225944 0.21840498 0.21429431 0.21026093 0.20630336 0.20242019 0.19861002 0.1948715 0.19120328 0.18760404 0.1840725 0.18060736 0.1772074 0.17387138 0.17059812 0.16738643 0.16423514 0.16114315 0.15810934 0.15513259 0.15221186 0.14934607 0.14653422 0.14377527 0.14106824 0.13841213 0.13580602 0.13324896 0.13074002 0.1282783 0.12586291 0.12349297 0.121167645 0.11888609 0.116647474 0.114451 0.112295866 0.1101813 0.10810654 0.10607084 0.10407345 0.10211367 0.10019078 0.09830409 0.09645293 0.094636604 0.092854485 0.09110591 0.089390256 0.08770691 0.08605525 0.08443469 0.08284464 0.08128453 0.07975379 0.078251876 0.07677824 0.07533235 0.073913686 0.07252173 0.07115599 0.06981596 0.06850117 0.06721113 0.06594539 0.06470348 0.06348495 0.062289372 0.061116304 0.059965327 0.058836024 0.057727985 0.05664081 0.05557411 0.0545275 0.053500596 0.05249303 0.051504437 0.05053446

</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="5.125" PeakHeight="212.754" Num="5" zHalfNm="191.687" Error="1.279">
-52.118 12.69 -8.47 4.232 -1.338
</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="6499.25" A="-2.90721038E11" B="8.972872E7" C="-6923.387" Error="9.59E-4"/>
<QuasiParabolic ID="2" StartDistance="6499.25" EndDistance="6518.5" A="0.0" B="-1404.816" C="0.28072837" Error="0.0109"/>
<QuasiParabolic ID="3" StartDistance="6518.5" EndDistance="6537.0" A="7.8075699E10" B="-2.4053326E7" C="1852.6034" Error="0.0109"/>
<QuasiParabolic ID="4" StartDistance="6537.0" EndDistance="6538.0" A="1.08071213E13" B="-3.30661299E9" C="252927.98" Error="2.37E-10"/>
<QuasiParabolic ID="5" StartDistance="6538.0" EndDistance="6544.0" A="1.43470677E13" B="-4.3894963E9" C="335742.56" Error="0.0151"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6549.0" A="1.84636974E13" B="-5.6476355E9" C="431871.75" Error="0.00802"/>
<QuasiParabolic ID="7" StartDistance="6549.0" EndDistance="6553.0" A="4.9207004E13" B="-1.50363372E10" C="1148676.0" Error="0.00462"/>
<QuasiParabolic ID="8" StartDistance="6553.0" EndDistance="6555.0" A="1.17673296E14" B="-3.5932504E10" C="2743073.0" Error="0.00247"/>
<QuasiParabolic ID="9" StartDistance="6555.0" EndDistance="6560.0" A="2.26071291E14" B="-6.9005885E10" C="5265833.0" Error="0.00769"/>
<QuasiParabolic ID="10" StartDistance="6560.0" EndDistance="6569.0" A="-1.26435407E14" B="3.8465671E10" C="-2925597.0" Error="0.00864"/>
<QuasiParabolic ID="11" StartDistance="6569.0" EndDistance="6582.754" A="-4.5423511E13" B="1.38007624E10" C="-1048225.2" Error="0.00454"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="57.75" Depth="0.1"/>
<TopsideChapman PeakHeight="212.754" PeakDensity="325876.25" PeakScaleHeight="16.436" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
