<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-16 -075 06:55:00.000"
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 F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.16 (075) 06:55:00</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">
FF202607503160655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.712" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.919" 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="4.125" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="205.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="205.000" 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="0.175" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.425" 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="234.791" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="203.559" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.174" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="44.072" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.727" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.240" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.770" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="5.500" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="71">
<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 3.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
205.000 205.000 205.000 205.000 205.000 205.000 206.250 207.500 207.500 207.500 207.500 207.500 207.500 207.500 208.750 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 225.000 227.500 227.500 227.500 230.000 230.000 232.500 232.500 235.000 237.500 237.500 237.500 242.500 242.500 243.750 245.000 247.500 249.206 251.110 253.248 255.667 258.425 261.600 265.293 269.643 274.842 281.166 289.023 299.048 312.282 330.561 357.448
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 63 60 63 78 0 72 72 63 63 51 51 51 51 66 66 57 54 54 57 69 69 72 72 72 72 69 72 72 69 57 60 45 45 45 36 54 57 75 75 78 78 105 105 108 105 96 93 105 105 90 90 66 66 105 105 102 102 81 84 81 78 69 69 69 72 78 72 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 -7.8125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="520">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.16667 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 154.33333 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.5 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 234.791 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0
</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 0.35376927 0.35314414 0.35199788 0.3504718 0.34844965 0.34601614 0.3430702 0.33964738 0.3357888 0.33131224 0.32640406 0.3208713 0.31475306 0.30806717 0.30063042 0.2924594 0.2835998 0.27378997 0.26306203 0.251229 0.23810448 0.22358955 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.22306015 0.22915037 0.23524061 0.24133083 0.24742106 0.25351128 0.2596015 0.26569173 0.27178195 0.27787217 0.2839624 0.29005262 0.29614285 0.30223307 0.3083233 0.31441355 0.32050377 0.326594 0.33268422 0.33877444 0.34486467 0.3509549 0.354 0.37328956 0.4110184 0.4481983 0.48537984 0.52299577 0.5614154 0.60097104 0.64199406 0.6848301 0.7298412 0.7774574 0.828167 0.88255906 0.941364 1.0054985 1.076094 1.1546758 1.2431853 1.3442061 1.4609056 1.5967262 1.7537795 1.9291372 2.111679 2.2865207 2.4441323 2.582319 2.7028537 2.8084536 2.9017375 2.9847956 3.059301 3.1265726 3.1876254 3.2432742 3.2941666 3.3408515 3.3837416 3.4231977 3.4595401 3.4930022 3.5238013 3.5521245 3.578133 3.6019557 3.6237097 3.6435003 3.6614118 3.677519 3.6918902 3.7045803 3.715636 3.7251015 3.73301 3.7393885 3.744259 3.747639 3.7495396 3.75 3.7499728 3.7490985 3.747017 3.7437606 3.7393625 3.733856 3.7272742 3.71965 3.7110171 3.7014084 3.6908567 3.6793952 3.6670558 3.6538713 3.6398733 3.6250935 3.6095629 3.5933123 3.576372 3.5587716 3.5405405 3.5217075 3.502301 3.4823482 3.4618764 3.4409122 3.4194818 3.3976097 3.3753216 3.3526409 3.3295913 3.306196 3.282477 3.2584558 3.2341537 3.2095914 3.1847885 3.1597643 3.1345375 3.109126 3.0835478 3.0578194 3.0319574 3.0059774 2.979895 2.9537249 2.9274812 2.9011776 2.8748276 2.8484435 2.822038 2.7956223 2.7692084 2.7428067 2.7164276 2.6900811 2.6637769 2.6375241 2.6113315 2.5852072 2.5591598 2.5331962 2.507324 2.4815505 2.4558816 2.430324 2.4048836 2.379566 2.3543766 2.3293204 2.3044024 2.2796268 2.2549982 2.2305205 2.2061973 2.182032 2.1580288 2.1341898 2.1105185 2.0870173 2.063689 2.0405354 2.017559 1.9947618 1.9721454 1.9497117 1.9274617 1.9053972 1.8835192 1.8618287 1.8403265 1.8190137 1.7978909 1.7769585 1.756217 1.7356668 1.7153081 1.695141 1.6751655 1.6553818 1.6357896 1.6163887 1.5971788 1.5781597 1.5593308 1.5406916 1.5222417 1.5039804 1.4859071 1.4680209 1.4503212 1.4328071 1.4154778 1.3983322 1.3813696 1.3645889 1.3479891 1.3315691 1.3153278 1.299264 1.2833768 1.2676648 1.2521268 1.2367618 1.2215683 1.2065452 1.1916912 1.1770049 1.162485 1.1481303 1.1339394 1.119911 1.1060435 1.0923358 1.0787864 1.0653939 1.052157 1.0390743 1.0261443 1.0133656 1.000737 0.98825675 0.9759238 0.9637364 0.9516935 0.93979335 0.9280348 0.9164163 0.9049365 0.893594 0.88238746 0.8713154 0.8603765 0.8495693 0.8388925 0.8283447 0.8179246 0.8076308 0.79746187 0.78741664 0.7774936 0.76769155 0.75800914 0.74844503 0.738998 0.7296666 0.7204497 0.711346 0.70235413 0.693473 0.68470114 0.67603755 0.6674809 0.6590299 0.65068346 0.6424403 0.6342993 0.6262592 0.618319 0.61047727 0.6027331 0.59508526 0.58753264 0.58007413 0.57270855 0.56543493 0.5582521 0.551159 0.5441546 0.5372378 0.5304076 0.5236629 0.51700276 0.51042616 0.503932 0.49751943 0.49118736 0.48493487 0.47876096 0.4726647 0.46664518 0.46070144 0.45483255 0.44903764 0.44331574 0.43766603 0.43208757 0.42657954 0.42114106 0.41577125 0.4104693 0.40523437 0.4000656 0.39496225 0.38992342 0.3849484 0.38003635 0.37518653 0.3703981 0.36567038 0.36100256 0.35639396 0.35184377 0.3473513 0.34291583 0.33853668 0.33421308 0.3299444 0.32572994 0.321569 0.31746092 0.31340504 0.30940074 0.30544734 0.3015442 0.2976907 0.2938862 0.29013014 0.28642187 0.28276077 0.27914628 0.2755778 0.2720548 0.26857662 0.26514277 0.26175264 0.25840572 0.25510144 0.25183925 0.24861866 0.24543913 0.24230012 0.23920114 0.23614168 0.23312123 0.23013932 0.22719544 0.2242891 0.22141987 0.21858723 0.21579075 0.21302995 0.2103044 0.20761363 0.20495722 0.20233473 0.19974571 0.19718976 0.19466645 0.19217536 0.18971609 0.18728822 0.18489137 0.18252516 0.18018916 0.17788301 0.17560633 0.17335874 0.17113987 0.16894935 0.16678685 0.16465198 0.16254438 0.16046374 0.15840968 0.1563819 0.15438004 0.15240376 0.15045276 0.14852671 0.14662528 0.14474817 0.14289506 0.14106566 0.13925965 0.13747673 0.13571662 0.13397902 0.13226366 0.13057023 0.12889847 0.1272481 0.12561883 0.12401041 0.12242256 0.12085503 0.11930756 0.11777989 0.116271764 0.11478294 0.11331316 0.11186219 0.110429786 0.10901572 0.10761974 0.106241636 0.10488116 0.103538096 0.10221223 0.100903325 0.09961117 0.098335564 0.09707628 0.095833115 0.09460586 0.09339432 0.09219828 0.09101755 0.089851946 0.088701256 0.087565295 0.08644387 0.08533681 0.08424392 0.08316503 0.08209994 0.08104849 0.0800105 0.0789858 0.07797422 0.07697559 0.075989746 0.07501653 0.07405577 0.07310731 0.07217099 0.07124666 0.070334174 0.06943336 0.06854409 0.0676662 0.06679956 0.06594401 0.06509942 0.06426564 0.063442536 0.062629975 0.061827816 0.06103593 0.060254183 0.05948245 0.0587206 0.057968505 0.05722604 0.05649308 0.05576951 0.05505521 0.054350052 0.053653926 0.052966714 0.0522883 0.05161858 0.050957434 0.050304756

</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="3.75" PeakHeight="234.791" Num="5" zHalfNm="203.559" Error="0.765">
-70.895 20.873 -12.427 4.834 -0.676
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="14" 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="6502.167" A="-2.79250174E11" B="8.6188328E7" C="-6650.2085" Error="0.00132"/>
<QuasiParabolic ID="2" StartDistance="6502.167" EndDistance="6524.333" A="0.0" B="-374.40167" C="0.10560391" Error="0.00537"/>
<QuasiParabolic ID="3" StartDistance="6524.333" EndDistance="6526.0" A="1.44392847E12" B="-4.4265504E8" C="33925.46" Error="0.0155"/>
<QuasiParabolic ID="4" StartDistance="6526.0" EndDistance="6544.0" A="2.56028529E10" B="-7985819.0" C="622.57855" Error="0.0199"/>
<QuasiParabolic ID="5" StartDistance="6544.0" EndDistance="6545.0" A="-1.18737745E12" B="3.6272944E8" C="-27702.242" Error="3.17E-11"/>
<QuasiParabolic ID="6" StartDistance="6545.0" EndDistance="6549.0" A="8.2704052E12" B="-2.52734925E9" C="193083.0" Error="0.0186"/>
<QuasiParabolic ID="7" StartDistance="6549.0" EndDistance="6552.0" A="3.14581615E11" B="-9.7719256E7" C="7586.731" Error="0.0139"/>
<QuasiParabolic ID="8" StartDistance="6552.0" EndDistance="6558.0" A="6.7735026E12" B="-2.06930688E9" C="158043.66" Error="0.00489"/>
<QuasiParabolic ID="9" StartDistance="6558.0" EndDistance="6563.0" A="1.72624393E13" B="-5.2681288E9" C="401930.66" Error="0.00818"/>
<QuasiParabolic ID="10" StartDistance="6563.0" EndDistance="6565.0" A="5.2092786E13" B="-1.5882282E10" C="1210566.5" Error="0.00428"/>
<QuasiParabolic ID="11" StartDistance="6565.0" EndDistance="6570.0" A="9.167684E13" B="-2.79414006E10" C="2129006.5" Error="0.0105"/>
<QuasiParabolic ID="12" StartDistance="6570.0" EndDistance="6583.0" A="-3.7250184E13" B="1.13057905E10" C="-857842.1" Error="0.0109"/>
<QuasiParabolic ID="13" StartDistance="6583.0" EndDistance="6604.791" A="-1.12670466E13" B="3.4117801E9" C="-258266.64" Error="0.00637"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="66.5" Depth="0.135"/>
<TopsideChapman PeakHeight="234.791" PeakDensity="174472.7" PeakScaleHeight="24.24" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
