<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 04:50:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.06 (126) 04:50:00</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">
FF202612605060450001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.137" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.568" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="343.062" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="343.062" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="367.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="312.648" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="277.101" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.788" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="50.871" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.321" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.534" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="52.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.920" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
343.062 343.863 344.759 345.769 346.914 348.224 349.738 351.508 353.603 355.000 360.000 362.500 367.500 375.000 385.000 397.500 423.075
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="616">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.253 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.506 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.759 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 312.648 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0
</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 0.35321164 0.35265058 0.35186794 0.350941 0.34979865 0.3485186 0.34703198 0.34534484 0.34353513 0.34146762 0.33929172 0.33687723 0.33423728 0.3314516 0.3284028 0.3251739 0.32172063 0.31806543 0.31417412 0.3100208 0.3055888 0.3009229 0.29594576 0.29065186 0.2851189 0.27917555 0.2729513 0.26629022 0.25926632 0.2517712 0.2438589 0.23533554 0.22632912 0.21663569 0.20627087 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 0.2 0.20204215 0.20617604 0.21030994 0.21444383 0.21857773 0.22271162 0.22684552 0.23097941 0.23511331 0.2392472 0.2433811 0.247515 0.25164887 0.25578278 0.25991666 0.26405057 0.26818448 0.27231836 0.27645227 0.28058615 0.28472006 0.28885394 0.29298785 0.29712173 0.30125564 0.30538952 0.30952343 0.3136573 0.31779122 0.3219251 0.326059 0.3301929 0.3343268 0.33846068 0.3425946 0.34672847 0.35086238 0.354 0.35828346 0.37621152 0.39445624 0.4130931 0.43218005 0.45177296 0.47190806 0.492637 0.5139895 0.5359981 0.5586956 0.5821029 0.6062411 0.6311314 0.65678775 0.68321276 0.7104159 0.73840404 0.7671641 0.79669404 0.8269852 0.8580182 0.8897762 0.9222359 0.9553767 0.98916787 1.0235853 1.0585952 1.0941625 1.130251 1.166838 1.2038915 1.2413639 1.2792346 1.3174676 1.3560315 1.3948874 1.4340137 1.4733802 1.5129546 1.5527081 1.5926158 1.6326497 1.6727787 1.7129904 1.7532419 1.7935182 1.8337946 1.8740373 1.9142313 1.9543426 1.9943414 2.034217 2.0739193 2.11344 2.1527395 2.1917865 2.2305553 2.269004 2.307103 2.3448226 2.3821173 2.418948 2.4552689 2.491051 2.5262327 2.5607743 2.594628 2.6277442 2.6600628 2.6915264 2.7220864 2.7516825 2.7802463 2.8077211 2.834043 2.859146 2.8829708 2.90545 2.9265184 2.946114 2.964182 2.9806576 2.9954877 3.008625 3.020018 3.029627 3.0374162 3.0433564 3.0474231 3.0496013 3.05 3.0499477 3.0492349 3.0477033 3.0453727 3.0422642 3.0383978 3.0337944 3.0284743 3.0224583 3.015767 3.0084207 3.0004401 2.9918454 2.9826565 2.9728937 2.9625766 2.951725 2.940358 2.9284947 2.9161544 2.9033554 2.890116 2.8764544 2.8623881 2.847935 2.833112 2.8179357 2.8024228 2.7865891 2.770451 2.7540236 2.737322 2.720361 2.703155 2.6857185 2.6680646 2.650207 2.632159 2.6139328 2.595541 2.5769958 2.5583086 2.539491 2.5205538 2.501508 2.482364 2.4631312 2.4438202 2.4244401 2.405 2.3855088 2.3659751 2.3464072 2.326813 2.3072002 2.2875764 2.2679486 2.248324 2.2287087 2.2091098 2.189533 2.1699846 2.1504698 2.1309946 2.111564 2.0921829 2.0728567 2.0535893 2.0343857 2.0152497 1.9961858 1.9771975 1.9582887 1.9394629 1.9207233 1.9020733 1.8835157 1.8650535 1.8466895 1.8284261 1.810266 1.7922113 1.7742642 1.7564268 1.738701 1.7210885 1.7035912 1.6862106 1.6689483 1.6518054 1.6347833 1.6178831 1.601106 1.5844531 1.5679251 1.5515227 1.5352471 1.5190984 1.5030776 1.4871851 1.4714212 1.4557866 1.4402813 1.4249057 1.4096599 1.3945441 1.3795584 1.3647028 1.3499774 1.335382 1.3209164 1.3065807 1.2923745 1.2782975 1.2643497 1.2505306 1.2368398 1.223277 1.2098418 1.1965337 1.1833522 1.170297 1.1573673 1.1445627 1.1318825 1.1193264 1.1068933 1.0945829 1.0823945 1.0703274 1.0583808 1.0465541 1.0348465 1.0232574 1.0117859 1.0004313 0.9891928 0.9780696 0.9670609 0.95616597 0.9453839 0.9347139 0.9241552 0.91370684 0.90336806 0.89313805 0.8830159 0.8730007 0.86309165 0.8532879 0.8435886 0.8339928 0.82449967 0.8151084 0.805818 0.79662776 0.7875366 0.77854383 0.7696485 0.7608497 0.75214666 0.7435384 0.7350241 0.7266029 0.71827394 0.7100364 0.7018893 0.69383186 0.68586326 0.67798257 0.670189 0.6624817 0.65485984 0.6473226 0.63986903 0.6324985 0.62521 0.61800283 0.61087614 0.6038291 0.59686095 0.5899709 0.5831581 0.5764218 0.5697612 0.56317556 0.55666405 0.5502259 0.54386044 0.53756684 0.53134435 0.52519226 0.5191098 0.5130963 0.5071509 0.50127304 0.49546185 0.48971674 0.48403695 0.4784218 0.4728706 0.46738264 0.46195725 0.45659378 0.45129153 0.44604984 0.44086805 0.43574554 0.43068165 0.42567572 0.42072716 0.4158353 0.41099954 0.40621924 0.40149382 0.39682263 0.39220515 0.3876407 0.3831288 0.37866876 0.37426004 0.36990207 0.36559433 0.3613362 0.35712716 0.35296664 0.34885412 0.34478906 0.3407709 0.33679917 0.33287328 0.32899278 0.3251571 0.3213658 0.3176183 0.3139142 0.31025293 0.30663404 0.30305707 0.2995215 0.2960269 0.29257277 0.2891587 0.28578418 0.2824488 0.2791521 0.27589363 0.27267298 0.2694897 0.26634338 0.26323357 0.2601599 0.25712192 0.25411922 0.2511514 0.24821807 0.24531886 0.24245332 0.23962112 0.23682185 0.23405513 0.2313206 0.22861788 0.2259466 0.22330642 0.22069697 0.2181179 0.21556884 0.21304947 0.21055944 0.20809841 0.20566605 0.20326202 0.200886 0.19853766 0.1962167 0.19392279 0.1916556 0.18941486 0.18720025 0.18501145 0.18284817 0.18071012 0.178597 0.17650853 0.17444444 0.17240441 0.17038819 0.16839549 0.16642605 0.16447958 0.16255584 0.16065456 0.15877546 0.1569183 0.15508282 0.15326877 0.15147589 0.14970395 0.1479527 0.14622192 0.14451134 0.14282073 0.14114988 0.13949853 0.13786648 0.1362535 0.13465936 0.13308385 0.13152674 0.12998782 0.12846689 0.12696373 0.12547815 0.124009915 0.12255884 0.12112473 0.119707376 0.11830659 0.116922185 0.11555395 0.11420172 0.11286529 0.11154449 0.11023913 0.108949035 0.10767402 0.10641391 0.10516854 0.10393772 0.1027213 0.101519115 0.10033098 0.09915674 0.09799623 0.096849285 0.09571577 0.0945955 0.093488336 0.09239412 0.09131271 0.09024394 0.089187674 0.088143766 0.08711207 0.086092435 0.08508474 0.08408882 0.08310456 0.08213181 0.08117044 0.08022032 0.079281315 0.07835329 0.077436134 0.0765297 0.075633876 0.07474853 0.07387354 0.0730088 0.07215417 0.07130954 0.070474796 0.069649816 0.06883449 0.06802871 0.067232355 0.06644532 0.065667495 0.06489877 0.06413904 0.063388206 0.06264616 0.06191279 0.061188005 0.060471706 0.05976379 0.059064154 0.05837271 0.057689358 0.057014003 0.05634655 0.055686913 0.055034995 0.054390706 0.05375396 0.053124666 0.052502736 0.051888086 0.05128063 0.050680283 0.050086964

</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="3.05" PeakHeight="312.648" Num="5" zHalfNm="277.101" Error="0.769">
-89.262 -2.857 1.885 -1.005 0.35
</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="6517.253" A="-1.0959745E11" B="3.3826372E7" C="-2609.9343" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6517.253" EndDistance="6554.506" A="0.0" B="440.52402" C="-0.027556833" Error="0.00869"/>
<QuasiParabolic ID="3" StartDistance="6554.506" EndDistance="6589.0" A="2.51128791E10" B="-7738419.5" C="596.1224" Error="0.00983"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6594.0" A="1.96958408E12" B="-5.9795578E8" C="45384.207" Error="0.0398"/>
<QuasiParabolic ID="5" StartDistance="6594.0" EndDistance="6610.0" A="1.72816086E12" B="-5.24730688E8" C="39831.8" Error="0.0279"/>
<QuasiParabolic ID="6" StartDistance="6610.0" EndDistance="6656.0" A="3.34090443E12" B="-1.01270157E9" C="76743.37" Error="0.0282"/>
<QuasiParabolic ID="7" StartDistance="6656.0" EndDistance="6673.0" A="-5.2349444E12" B="1.56417613E9" C="-116832.18" Error="0.00553"/>
<QuasiParabolic ID="8" StartDistance="6673.0" EndDistance="6682.648" A="-1.11313169E13" B="3.3314089E9" C="-249248.84" Error="5.6E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.759" Depth="0.154"/>
<TopsideChapman PeakHeight="312.648" PeakDensity="115415.63" PeakScaleHeight="26.534" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
