<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 02:20:00.000"
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" >
2026.05.07 (127) 02:20:00</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">
FF202612705070220001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.568" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.488" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="262.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="262.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="278.703" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="266.850" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.348" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.039" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.738" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.072" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.688" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.550" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.250" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 264.167 265.833 267.500 270.000 275.000 275.000 278.703 283.010 288.080 294.136 301.498 310.638 322.289 337.651 358.833 389.915
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 0 0 105 105 108 108 93 90 78 0 0 0 0 102 0 90
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="432">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.58333 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.16667 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.75 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 266.85 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0
</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 0.35313663 0.35250106 0.35164472 0.35064512 0.34935787 0.34793577 0.3463105 0.34448874 0.34247804 0.3402866 0.3378549 0.33519608 0.33232448 0.32919082 0.32587904 0.32228336 0.31849188 0.31441292 0.31008333 0.3054338 0.30051735 0.2952657 0.28973025 0.2838154 0.27755383 0.2709269 0.2638273 0.2562852 0.24823268 0.23961297 0.23044473 0.2206037 0.2100604 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 0.20360656 0.20793442 0.21226229 0.21659017 0.22091803 0.22524591 0.22957377 0.23390163 0.23822951 0.24255738 0.24688524 0.2512131 0.255541 0.25986886 0.26419672 0.2685246 0.27285245 0.2771803 0.2815082 0.28583607 0.29016393 0.2944918 0.29881966 0.30314755 0.30747542 0.31180328 0.31613114 0.320459 0.32478687 0.32911476 0.33344263 0.3377705 0.34209836 0.34642622 0.3507541 0.354 0.36022553 0.3882045 0.42163196 0.46077153 0.50513494 0.5536434 0.6051201 0.6586791 0.71384853 0.7704656 0.8285873 0.88837576 0.9500838 1.0140107 1.0804886 1.149896 1.2226195 1.2991045 1.3797876 1.4651319 1.5555173 1.6512786 1.752564 1.8592457 1.9707557 2.0859811 2.2033124 2.320623 2.4356885 2.5464947 2.6514246 2.7494946 2.8401928 2.9234138 2.9993758 3.0683703 3.1308203 3.1871414 3.237744 3.2830114 3.3232796 3.3588524 3.3899868 3.4169161 3.439827 3.4588845 3.474215 3.485921 3.4940827 3.4987526 3.5 3.4999723 3.4984002 3.4944804 3.4883065 3.4799738 3.469577 3.457211 3.4429708 3.4269495 3.40924 3.3899338 3.3691206 3.3468888 3.3233244 3.298512 3.2725332 3.2454681 3.217394 3.1883862 3.1585171 3.1278567 3.0964725 3.0644298 3.0317907 2.9986153 2.964961 2.930883 2.8964334 2.8616626 2.8266184 2.791346 2.755889 2.7202878 2.684582 2.6488078 2.613 2.5771918 2.5414138 2.5056953 2.470064 2.4345448 2.3991625 2.3639393 2.3288963 2.2940528 2.2594275 2.225037 2.1908975 2.1570225 2.1234262 2.0901203 2.0571163 2.0244243 1.9920537 1.960013 1.9283096 1.8969502 1.8659412 1.8352876 1.804994 1.7750647 1.745503 1.7163117 1.6874931 1.6590492 1.6309811 1.6032898 1.575976 1.5490396 1.5224804 1.4962977 1.4704908 1.4450585 1.4199992 1.3953112 1.3709928 1.3470414 1.3234549 1.3002306 1.277366 1.254858 1.2327036 1.2108997 1.189443 1.1683301 1.1475575 1.1271217 1.107019 1.0872457 1.0677979 1.048672 1.0298638 1.0113697 0.99318564 0.9753076 0.9577316 0.9404537 0.9234698 0.90677583 0.89036787 0.8742419 0.8583938 0.8428196 0.8275153 0.812477 0.79770064 0.78318226 0.76891804 0.7549041 0.74113643 0.7276113 0.71432495 0.7012735 0.6884533 0.67586064 0.6634918 0.6513432 0.63941133 0.6276925 0.6161833 0.6048802 0.5937798 0.58287877 0.5721738 0.5616614 0.5513385 0.54120183 0.5312482 0.52147454 0.5118777 0.5024547 0.4932025 0.4841182 0.47519884 0.46644157 0.4578436 0.4494021 0.44111437 0.43297768 0.4249894 0.4171469 0.4094476 0.401889 0.39446858 0.38718387 0.3800325 0.3730121 0.36612028 0.3593548 0.35271338 0.34619376 0.3397938 0.33351135 0.3273443 0.32129052 0.31534803 0.3095148 0.30378887 0.29816827 0.29265112 0.28723553 0.28191966 0.27670172 0.2715799 0.26655248 0.26161775 0.25677398 0.25201955 0.24735284 0.2427722 0.23827612 0.23386301 0.22953138 0.22527972 0.22110657 0.21701053 0.21299013 0.20904402 0.20517084 0.20136924 0.19763792 0.19397555 0.19038093 0.18685275 0.18338984 0.17999098 0.176655 0.17338072 0.17016701 0.16701278 0.16391693 0.16087836 0.15789604 0.15496892 0.15209599 0.14927624 0.1465087 0.1437924 0.14112641 0.1385098 0.13594162 0.13342103 0.13094711 0.12851903 0.12613592 0.12379696 0.121501334 0.11924824 0.117036894 0.11486652 0.11273636 0.110645674 0.10859373 0.10657982 0.10460323 0.10266327 0.100759275 0.098890565 0.097056486 0.09525641 0.09348971 0.09175575 0.09005393 0.08838367 0.08674437 0.08513545 0.08355638 0.08200657 0.0804855 0.078992635 0.07752745 0.07608943 0.07467807 0.07329288 0.07193338 0.070599094 0.06928954 0.06800428 0.066742845 0.06550481 0.064289734 0.06309719 0.061926756 0.060778033 0.05965061 0.058544103 0.057458114 0.056392264 0.055346183 0.054319505 0.05331187 0.05232292 0.051352315 0.05039971

</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="3.5" PeakHeight="266.85" Num="5" zHalfNm="245.348" Error="2.598">
-53.641 6.525 -4.554 2.51 -0.94
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6515.583" A="-1.20064901E11" B="3.7057068E7" C="-2859.2163" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.583" EndDistance="6551.167" A="0.0" B="-305.20914" C="0.08687947" Error="0.00727"/>
<QuasiParabolic ID="3" StartDistance="6551.167" EndDistance="6585.0" A="3.817252E10" B="-1.1724879E7" C="900.3458" Error="0.00727"/>
<QuasiParabolic ID="4" StartDistance="6585.0" EndDistance="6587.0" A="3.72644014E12" B="-1.13192768E9" C="85957.51" Error="0.013"/>
<QuasiParabolic ID="5" StartDistance="6587.0" EndDistance="6595.0" A="8.3876491E12" B="-2.54720282E9" C="193386.92" Error="0.0295"/>
<QuasiParabolic ID="6" StartDistance="6595.0" EndDistance="6603.0" A="9.9289735E12" B="-3.01462477E9" C="228824.53" Error="0.0172"/>
<QuasiParabolic ID="7" StartDistance="6603.0" EndDistance="6615.0" A="3.28851595E13" B="-9.9678843E9" C="755347.3" Error="0.0121"/>
<QuasiParabolic ID="8" StartDistance="6615.0" EndDistance="6636.85" A="-2.53986918E13" B="7.6538394E9" C="-576604.6" Error="0.00766"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.75" Depth="0.154"/>
<TopsideChapman PeakHeight="266.85" PeakDensity="151985.11" PeakScaleHeight="16.688" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
