<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-20 -079 06:45:00.000"
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 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" >
2026.03.20 (079) 06:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" 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">
FF202607903200645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.693" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.218" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="257.994" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.121" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="209.161" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.263" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.382" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.760" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.358" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.520" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.820" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="67">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.75 3.775 3.8 3.825 3.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 211.250 212.500 212.500 213.750 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 223.125 223.750 224.375 225.000 227.500 227.500 228.611 229.722 230.833 231.944 233.056 234.167 235.278 236.389 237.500 237.500 237.500 240.000 240.000 242.500 242.500 242.500 245.000 247.500 250.000 252.500 255.000 255.000 257.994 261.352 265.147 269.469 274.436 280.205 286.985 295.069 304.873 317.012 332.431 352.669
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 54 54 0 51 0 78 0 84 84 66 0 72 0 0 72 66 69 69 72 72 69 57 60 48 45 0 0 0 63 93 96 0 0 0 0 0 0 0 0 93 96 87 96 96 96 96 99 96 96 99 96 87 84 81 78 81 78 90 87 72 0 0 66 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="512">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.121 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0
</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 0.3538169 0.35312194 0.35206616 0.35058403 0.34861574 0.3462502 0.3433677 0.34006724 0.336247 0.33195284 0.32717335 0.32179055 0.31589526 0.3093662 0.30218917 0.2942784 0.28568256 0.27623004 0.26589635 0.25450236 0.24202472 0.22809964 0.21270788 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.20614286 0.21257143 0.219 0.22542857 0.23185714 0.23828572 0.24471429 0.25114286 0.25757143 0.264 0.27042857 0.27685714 0.2832857 0.28971428 0.29614285 0.30257142 0.309 0.31542858 0.32185715 0.32828572 0.3347143 0.34114286 0.34757143 0.354 0.3863269 0.42165148 0.45924452 0.49850783 0.5391 0.5808803 0.6238668 0.66816485 0.7139727 0.7615196 0.8110966 0.8630426 0.9177582 0.97571087 1.0374632 1.1037039 1.1752465 1.2531289 1.3386002 1.4332145 1.5387571 1.6571653 1.7900684 1.9376105 2.0968206 2.2606997 2.42027 2.5685093 2.7022195 2.821313 2.9270604 3.021219 3.1054046 3.1810732 3.2493887 3.311323 3.3676846 3.4190984 3.46611 3.5091522 3.5486064 3.584763 3.6179013 3.6482313 3.6759522 3.701219 3.72418 3.744949 3.76363 3.7803118 3.7950757 3.8079836 3.8190904 3.828444 3.836083 3.8420365 3.8463283 3.8489754 3.849992 3.85 3.8494718 3.847608 3.8444362 3.8399937 3.834319 3.82745 3.8194249 3.8102815 3.800058 3.7887924 3.776522 3.763284 3.7491157 3.7340536 3.7181334 3.7013915 3.6838624 3.6655807 3.6465807 3.6268954 3.606558 3.5856004 3.5640538 3.541949 3.5193164 3.496185 3.4725838 3.4485402 3.4240818 3.399235 3.374025 3.3484778 3.3226168 3.2964659 3.270048 3.243385 3.2164986 3.1894093 3.1621373 3.134702 3.107122 3.0794153 3.0515995 3.0236912 2.9957068 2.9676614 2.9395704 2.911448 2.8833077 2.855163 2.8270268 2.798911 2.7708273 2.7427866 2.7148 2.6868773 2.6590285 2.6312625 2.6035886 2.5760148 2.5485492 2.5211995 2.4939725 2.4668756 2.439915 2.4130967 2.3864267 2.3599102 2.3335526 2.3073585 2.2813327 2.255479 2.229802 2.2043047 2.1789908 2.153864 2.1289268 2.1041818 2.0796318 2.0552793 2.031126 2.007174 1.9834251 1.959881 1.9365426 1.9134116 1.8904889 1.8677753 1.8452717 1.8229787 1.8008969 1.7790266 1.7573681 1.7359214 1.7146866 1.6936638 1.6728526 1.652253 1.6318644 1.6116865 1.5917186 1.5719603 1.552411 1.5330696 1.5139357 1.4950082 1.4762863 1.4577689 1.439455 1.4213437 1.4034336 1.3857237 1.3682127 1.3508993 1.3337824 1.3168607 1.3001325 1.2835969 1.2672521 1.2510967 1.2351296 1.219349 1.2037535 1.1883415 1.1731117 1.1580623 1.1431919 1.1284989 1.1139817 1.0996388 1.0854685 1.0714693 1.0576395 1.0439775 1.0304817 1.0171505 1.0039823 0.9909755 0.97812843 0.96543956 0.95290715 0.9405297 0.9283055 0.91623306 0.90431076 0.89253694 0.88091004 0.86942846 0.8580907 0.84689516 0.8358402 0.82492435 0.8141461 0.8035038 0.79299605 0.78262126 0.7723779 0.76226455 0.75227964 0.74242175 0.73268944 0.7230812 0.7135955 0.70423114 0.6949865 0.6858603 0.676851 0.6679573 0.65917784 0.65051126 0.64195615 0.63351125 0.6251751 0.6169466 0.60882425 0.60080683 0.5928931 0.58508176 0.57737154 0.5697613 0.56224966 0.5548355 0.5475176 0.5402947 0.5331658 0.52612954 0.51918495 0.5123307 0.50556576 0.49888906 0.4922994 0.48579574 0.479377 0.47304207 0.46678993 0.46061954 0.45452985 0.44851983 0.4425885 0.43673483 0.43095785 0.42525658 0.41963008 0.41407734 0.40859747 0.4031895 0.39785254 0.39258566 0.387388 0.38225862 0.37719667 0.3722013 0.3672716 0.3624068 0.35760596 0.35286835 0.3481931 0.34357947 0.33902657 0.33453366 0.33009997 0.32572475 0.3214072 0.31714657 0.31294215 0.30879322 0.304699 0.30065882 0.296672 0.2927378 0.28885555 0.28502458 0.28124422 0.2775138 0.27383268 0.2702002 0.26661572 0.26307863 0.25958833 0.25614417 0.25274554 0.24939188 0.24608257 0.24281706 0.23959474 0.23641507 0.23327748 0.23018143 0.22712636 0.22411172 0.22113702 0.21820168 0.21530524 0.21244714 0.2096269 0.20684402 0.204098 0.20138837 0.19871464 0.19607635 0.193473 0.19090416 0.18836936 0.18586817 0.18340014 0.18096481 0.17856178 0.1761906 0.17385086 0.17154215 0.16926406 0.16701618 0.1647981 0.16260944 0.16044982 0.15831883 0.15621613 0.1541413 0.152094 0.15007389 0.14808054 0.14611366 0.14417288 0.14225785 0.14036822 0.13850369 0.13666388 0.13484849 0.1330572 0.13128969 0.12954563 0.12782472 0.12612665 0.12445112 0.12279784 0.121166505 0.11955682 0.117968515 0.116401285 0.114854865 0.11332898 0.11182335 0.11033772 0.1088718 0.107425354 0.105998114 0.10458983 0.10320024 0.101829104 0.100476176 0.09914121 0.09782398 0.09652424 0.095241755 0.09397631 0.09272767 0.09149561 0.09027992 0.08908037 0.08789676 0.08672886 0.08557648 0.084439404 0.08331743 0.08221036 0.081117995 0.08004014 0.0789766 0.077927195 0.07689173 0.075870015 0.07486187 0.07386712 0.07288558 0.07191709 0.07096146 0.07001852 0.06908812 0.06817006 0.067264214 0.0663704 0.06548846 0.06461823 0.063759565 0.06291231 0.062076308 0.061251417 0.06043748 0.05963436 0.058841914 0.058059994 0.05728846 0.05652718 0.055776015 0.055034827 0.05430349 0.053581867 0.052869838 0.052167263 0.051474027 0.05079 0.050115064

</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="3.85" PeakHeight="239.121" Num="5" zHalfNm="209.161" Error="1.177">
-70.097 18.443 -11.466 5.085 -1.086
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="18" 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="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="49.460155" C="0.034037836" Error="6.53E-4"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6527.0" A="-1.2870852E13" B="3.94386816E9" C="-302118.56" Error="1.4E-9"/>
<QuasiParabolic ID="4" StartDistance="6527.0" EndDistance="6528.0" A="4.38312999E12" B="-1.34308826E9" C="102888.055" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6528.0" EndDistance="6529.0" A="-4.23282973E12" B="1.29660531E9" C="-99294.36" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6529.0" EndDistance="6530.0" A="4.38590846E12" B="-1.3435351E9" C="102891.305" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6530.0" EndDistance="6531.0" A="-3.8080592E12" B="1.16610278E9" C="-89270.86" Error="8.59E-10"/>
<QuasiParabolic ID="8" StartDistance="6531.0" EndDistance="6533.0" A="1.19796885E12" B="-3.66902272E8" C="28092.87" Error="0.0185"/>
<QuasiParabolic ID="9" StartDistance="6533.0" EndDistance="6549.0" A="1.98907392E10" B="-6247718.5" C="490.34845" Error="0.0184"/>
<QuasiParabolic ID="10" StartDistance="6549.0" EndDistance="6551.0" A="9.3708888E12" B="-2.86195021E9" C="218516.19" Error="2.41E-10"/>
<QuasiParabolic ID="11" StartDistance="6551.0" EndDistance="6552.0" A="6.0615054E12" B="-1.85160576E9" C="141402.44" Error="0.0"/>
<QuasiParabolic ID="12" StartDistance="6552.0" EndDistance="6561.0" A="4.6477109E12" B="-1.42004454E9" C="108468.89" Error="0.0151"/>
<QuasiParabolic ID="13" StartDistance="6561.0" EndDistance="6567.0" A="1.37932162E13" B="-4.20788352E9" C="320924.22" Error="0.00558"/>
<QuasiParabolic ID="14" StartDistance="6567.0" EndDistance="6570.0" A="3.5658039E13" B="-1.08668826E10" C="827928.8" Error="0.00226"/>
<QuasiParabolic ID="15" StartDistance="6570.0" EndDistance="6577.0" A="6.886181E13" B="-2.09745756E10" C="1597159.6" Error="0.0109"/>
<QuasiParabolic ID="16" StartDistance="6577.0" EndDistance="6588.0" A="-4.2967734E13" B="1.30316718E10" C="-988080.3" Error="0.0133"/>
<QuasiParabolic ID="17" StartDistance="6588.0" EndDistance="6609.121" A="-1.29566937E13" B="3.92085222E9" C="-296609.53" Error="0.00714"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="239.121" PeakDensity="183901.98" PeakScaleHeight="23.358" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
