<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-17 -076 01:45:00.000"
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: 70% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.17 (076) 01:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607603170145001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.437" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.390" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="260.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="260.000" 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="5.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="331.030" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="279.649" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="256.361" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.011" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="33.745" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.639" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.429" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.510" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.060" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="82">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 260.000 262.500 262.500 262.500 265.000 265.000 265.000 267.500 267.500 267.500 267.500 267.500 270.000 272.500 271.250 270.000 272.500 272.500 272.500 272.500 275.000 277.500 280.000 279.167 278.333 277.500 278.750 280.000 277.500 280.000 280.000 280.000 280.000 282.500 282.500 283.750 285.000 287.500 287.500 287.500 287.500 287.500 290.000 290.000 290.000 290.000 290.000 292.500 292.500 295.000 295.000 295.000 302.500 302.500 295.000 300.000 300.000 302.500 302.500 302.500 305.000 305.000 307.500 310.000 311.250 312.500 315.000 316.667 318.333 320.000 320.000 320.833 321.667 322.500 325.000 325.000 325.000 326.250 327.500 331.030 364.467
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 78 90 87 87 84 78 78 75 81 0 75 78 0 81 0 60 57 0 0 84 0 84 81 0 0 72 0 93 102 93 93 90 87 105 108 72 75 84 84 90 81 84 84 63 63 60 60 87 93 93 81 102 96 90 87 90 93 93 93 105 105 102 105 63 0 99 99 60 60 63 60 60 63 96 96 93 90 78 78 93 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 7.8125 -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="477">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 279.649 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0
</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 0.3524263 0.35157037 0.35049725 0.34921128 0.34779054 0.3460947 0.34420434 0.34212717 0.33980232 0.33724248 0.33452845 0.33153966 0.32836035 0.32488185 0.3211927 0.3171983 0.31299222 0.3084957 0.30364835 0.2985621 0.29312387 0.2873491 0.2811647 0.27462557 0.26766586 0.26023185 0.25232056 0.24386445 0.23482597 0.2251332 0.21472648 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 0.2044 0.2088 0.2132 0.2176 0.222 0.2264 0.2308 0.2352 0.2396 0.244 0.2484 0.2528 0.2572 0.2616 0.266 0.2704 0.2748 0.2792 0.2836 0.288 0.2924 0.2968 0.3012 0.3056 0.31 0.3144 0.3188 0.3232 0.3276 0.332 0.3364 0.3408 0.3452 0.3496 0.354 0.39083478 0.42749733 0.46483707 0.5033845 0.54353195 0.5856021 0.6298758 0.67660093 0.72601014 0.77832776 0.83375067 0.8924641 0.95459723 1.0202909 1.0896107 1.1626152 1.2393044 1.3196385 1.4035378 1.4908693 1.5814943 1.6752095 1.771823 1.8710834 1.9727924 2.0766811 2.1825185 2.2900813 2.3990922 2.5093641 2.6206515 2.7327433 2.845443 2.9585066 3.0717757 3.1849985 3.2980123 3.4106061 3.5225408 3.6336339 3.7436569 3.8523624 3.9595618 4.064965 4.168339 4.269401 4.3678875 4.463497 4.555954 4.644923 4.730088 4.811134 4.8877177 4.959526 5.02621 5.087454 5.142947 5.192385 5.235492 5.2720237 5.3017454 5.3244824 5.3400884 5.3484626 5.35 5.349789 5.346912 5.340763 5.3314695 5.3191586 5.303957 5.285992 5.265392 5.242281 5.216785 5.189026 5.1591253 5.127202 5.093373 5.057751 5.020449 4.981574 4.941232 4.8995256 4.8565536 4.8124123 4.7671943 4.720989 4.673883 4.6259594 4.577298 4.527975 4.478064 4.4276357 4.3767567 4.3254914 4.273901 4.2220435 4.169975 4.117748 4.0654116 4.0130143 3.9606009 3.9082134 3.855892 3.8036745 3.7515965 3.6996915 3.647991 3.596524 3.5453186 3.4944003 3.443793 3.3935194 3.3435998 3.2940536 3.2448986 3.1961513 3.1478264 3.099938 3.0524986 3.0055196 2.9590113 2.9129832 2.8674436 2.8223999 2.7778585 2.7338254 2.6903052 2.6473024 2.6048203 2.5628614 2.5214286 2.4805229 2.4401457 2.4002974 2.360978 2.322187 2.2839236 2.2461867 2.2089744 2.172285 2.1361163 2.1004653 2.0653296 2.0307055 1.9965898 1.9629791 1.9298694 1.8972569 1.8651371 1.8335059 1.8023587 1.771691 1.741498 1.7117748 1.6825166 1.6537182 1.6253748 1.5974809 1.5700315 1.5430212 1.5164449 1.4902971 1.4645724 1.4392656 1.4143711 1.3898838 1.3657979 1.3421081 1.3188093 1.2958958 1.2733624 1.2512037 1.2294142 1.207989 1.1869224 1.1662095 1.1458448 1.1258234 1.10614 1.0867896 1.0677671 1.0490676 1.030686 1.0126175 0.99485713 0.97740024 0.960242 0.9433776 0.9268026 0.9105122 0.894502 0.8787674 0.863304 0.8481075 0.83317345 0.81849766 0.80407584 0.78990394 0.77597773 0.7622932 0.7488464 0.73563343 0.7226503 0.70989317 0.69735837 0.68504214 0.6729408 0.66105074 0.64936835 0.6378902 0.6266129 0.6155329 0.6046469 0.5939517 0.5834439 0.5731204 0.562978 0.5530137 0.54322433 0.53360695 0.5241586 0.51487637 0.50575745 0.49679893 0.48799813 0.47935227 0.4708587 0.46251476 0.45431787 0.44626552 0.43835515 0.4305843 0.42295057 0.41545156 0.4080849 0.40084833 0.39373958 0.3867564 0.37989658 0.37315798 0.3665385 0.36003605 0.35364857 0.34737405 0.3412105 0.335156 0.32920864 0.3233665 0.3176278 0.31199062 0.3064533 0.30101398 0.29567102 0.29042265 0.28526726 0.2802032 0.27522886 0.27034265 0.26554304 0.26082847 0.25619748 0.25164858 0.2471803 0.24279124 0.23847999 0.2342452 0.23008549 0.22599956 0.2219861 0.21804382 0.21417145 0.2103678 0.2066316 0.20296171 0.19935691 0.19581608 0.19233808 0.1889218 0.18556614 0.18227004 0.17903242 0.17585227 0.17272857 0.16966031 0.16664651 0.16368622 0.16077848 0.15792234 0.15511693 0.15236132 0.14965463 0.14699599 0.14438456 0.1418195 0.13929999 0.13682522 0.13439439 0.13200673 0.12966147 0.12735786 0.12509514 0.122872636 0.120689586 0.11854531 0.11643912 0.11437033 0.1123383 0.110342346 0.10838185 0.106456175 0.10456471 0.102706835 0.100881964 0.09908951 0.097328894 0.095599554 0.09390094 0.092232496 0.09059369 0.08898399 0.087402895 0.08584988 0.084324464 0.082826145 0.08135444 0.079908885 0.078489006 0.077094354 0.07572448 0.07437895 0.073057316 0.07175917 0.07048409 0.06923165 0.06800147 0.06679315 0.065606296 0.064440526 0.06329547 0.062170763 0.061066035 0.059980933 0.058915116 0.05786823 0.05683995 0.055829942 0.054837875 0.053863436 0.052906312 0.051966194 0.05104278 0.050135776

</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="5.35" PeakHeight="279.649" Num="5" zHalfNm="256.361" Error="0.809">
-64.805 -0.275 0.572 -0.506 0.365
</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="6515.0" A="-1.24071371E11" B="3.8293632E7" C="-2954.6301" Error="0.00182"/>
<QuasiParabolic ID="2" StartDistance="6515.0" EndDistance="6550.0" A="0.0" B="-1131.1487" C="0.21366183" Error="0.0242"/>
<QuasiParabolic ID="3" StartDistance="6550.0" EndDistance="6583.0" A="4.559446E10" B="-1.3987464E7" C="1072.7856" Error="0.0242"/>
<QuasiParabolic ID="4" StartDistance="6583.0" EndDistance="6589.0" A="5.8338632E12" B="-1.77253786E9" C="134640.34" Error="0.0238"/>
<QuasiParabolic ID="5" StartDistance="6589.0" EndDistance="6599.0" A="7.6595698E12" B="-2.32670592E9" C="176692.84" Error="0.0494"/>
<QuasiParabolic ID="6" StartDistance="6599.0" EndDistance="6635.0" A="2.35574175E13" B="-7.1449656E9" C="541767.9" Error="0.0515"/>
<QuasiParabolic ID="7" StartDistance="6635.0" EndDistance="6649.649" A="-6.6276697E13" B="1.99338947E10" C="-1498839.5" Error="0.012"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.0" Depth="0.154"/>
<TopsideChapman PeakHeight="279.649" PeakDensity="355117.88" PeakScaleHeight="17.429" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
