<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-16 -136 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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.16 (136) 06:45:00</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">
FF202613605160645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.342" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.112" 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="3.725" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="305.983" 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="280.698" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.018" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.480" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="52.033" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.615" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="28.514" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="42.350" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.340" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="54">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.500 258.750 260.000 262.500 262.500 262.500 265.000 265.000 265.000 267.500 270.000 270.000 272.500 272.500 272.500 272.500 275.000 275.000 275.000 276.250 277.500 280.000 281.678 283.494 285.464 287.611 289.958 292.535 295.377 298.529 302.042 305.983 310.436 315.507 321.334 328.099 336.051 345.530 357.023 371.249 389.313 413.011
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 66 69 66 81 84 81 78 69 69 54 51 0 51 63 66 72 72 72 72 75 69 69 63 66 63 66 72 72 75 60 60 48 45 0 0 0 0 0 0 0 0 0 0 90 0 87 87 0 84 0 87 87
</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 -4.6875 -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="620">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 280.698 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0
</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 0.35354906 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.3821183 0.41053745 0.4391769 0.4680523 0.4972164 0.5267516 0.5567682 0.5873657 0.61865366 0.6507558 0.6837931 0.71789837 0.7532241 0.78992045 0.8281675 0.86816156 0.91011107 0.95428294 1.0009387 1.0504087 1.10306 1.15929 1.2195661 1.284381 1.3542222 1.4295818 1.5107508 1.5978007 1.6902803 1.7871248 1.8865508 1.9863089 2.0841124 2.1780083 2.266742 2.3496928 2.4266925 2.4979556 2.5638177 2.6246905 2.6810157 2.733194 2.7816052 2.8265867 2.868438 2.907423 2.943761 2.9776697 3.0093203 3.0388768 3.066465 3.0922134 3.1162288 3.1386108 3.159435 3.1787841 3.196722 3.2133088 3.2285995 3.2426383 3.2554672 3.2671251 3.2776446 3.2870543 3.2953804 3.3026423 3.3088608 3.314052 3.3182285 3.3214002 3.3235753 3.3247595 3.325 3.3249636 3.3243294 3.3229194 3.3207514 3.3178434 3.3142133 3.3098793 3.3048592 3.2991714 3.2928338 3.2858646 3.2782817 3.2701032 3.2613466 3.2520297 3.24217 3.2317853 3.2208924 3.2095084 3.1976504 3.185335 3.1725783 3.159397 3.1458068 3.1318238 3.117463 3.1027403 3.08767 3.0722673 3.0565467 3.040522 3.0242076 3.0076168 2.990763 2.9736593 2.9563186 2.9387536 2.920976 2.9029982 2.8848317 2.8664877 2.8479776 2.829312 2.810502 2.791557 2.7724879 2.7533038 2.7340143 2.7146287 2.695156 2.675605 2.6559837 2.6363008 2.6165638 2.5967808 2.5769591 2.5571058 2.5372279 2.5173326 2.4974258 2.4775145 2.4576042 2.4377012 2.4178114 2.3979397 2.378092 2.358273 2.338488 2.3187416 2.2990382 2.2793822 2.2597783 2.24023 2.2207417 2.2013166 2.1819587 2.1626713 2.1434577 2.124321 2.1052644 2.0862904 2.0674021 2.0486019 2.0298924 2.011276 1.9927549 1.9743311 1.9560069 1.9377841 1.9196644 1.9016497 1.8837415 1.8659413 1.8482506 1.8306707 1.813203 1.7958485 1.7786083 1.7614836 1.744475 1.7275836 1.7108102 1.6941555 1.67762 1.6612046 1.6449095 1.6287354 1.6126827 1.5967517 1.5809426 1.5652558 1.5496914 1.5342498 1.5189309 1.5037347 1.4886614 1.4737109 1.4588832 1.4441781 1.4295956 1.4151355 1.4007975 1.3865814 1.3724871 1.3585142 1.3446623 1.3309311 1.3173202 1.3038294 1.2904581 1.277206 1.2640723 1.2510569 1.2381592 1.2253785 1.2127144 1.2001663 1.1877338 1.175416 1.1632125 1.1511227 1.1391459 1.1272814 1.1155287 1.1038871 1.0923558 1.0809343 1.0696218 1.0584176 1.047321 1.0363313 1.0254478 1.0146698 1.0039965 0.9934271 0.982961 0.97259736 0.9623355 0.95217466 0.94211406 0.9321529 0.9222905 0.9125261 0.9028588 0.89328796 0.8838128 0.8744325 0.86514634 0.8559536 0.8468534 0.837845 0.8289277 0.8201007 0.8113632 0.8027145 0.79415387 0.7856804 0.77729344 0.76899225 0.76077604 0.752644 0.7445955 0.7366298 0.728746 0.7209435 0.7132215 0.70557934 0.69801617 0.6905314 0.6831242 0.67579395 0.6685398 0.66136116 0.6542573 0.64722747 0.640271 0.6333872 0.6265754 0.61983484 0.6131649 0.60656494 0.6000342 0.593572 0.58717775 0.5808508 0.5745904 0.568396 0.5622669 0.5562025 0.5502021 0.54426503 0.5383908 0.53257877 0.5268282 0.5211386 0.51550937 0.5099398 0.50442934 0.49897736 0.49358338 0.48824674 0.48296684 0.47774318 0.47257513 0.46746212 0.46240366 0.45739913 0.452448 0.44754973 0.44270378 0.4379096 0.43316668 0.4284745 0.42383248 0.41924018 0.41469702 0.41020253 0.40575624 0.4013576 0.3970061 0.3927013 0.3884427 0.3842298 0.38006216 0.37593928 0.3718607 0.36782596 0.36383462 0.3598862 0.35598025 0.35211635 0.34829402 0.34451285 0.34077242 0.33707228 0.33341202 0.3297912 0.32620943 0.32266626 0.31916133 0.3156942 0.3122645 0.3088718 0.30551577 0.30219594 0.29891196 0.29566348 0.29245007 0.2892714 0.28612712 0.2830168 0.2799401 0.2768967 0.2738862 0.27090827 0.26796257 0.26504874 0.26216644 0.25931534 0.25649512 0.25370544 0.250946 0.24821639 0.24551637 0.24284561 0.2402038 0.2375906 0.23500574 0.23244888 0.22991975 0.22741804 0.22494346 0.2224957 0.2200745 0.21767958 0.21531062 0.21296737 0.21064954 0.20835687 0.20608906 0.20384589 0.20162706 0.19943231 0.1972614 0.19511405 0.19299002 0.19088906 0.18881091 0.18675533 0.18472208 0.18271093 0.18072161 0.17875391 0.17680758 0.17488241 0.17297816 0.1710946 0.1692315 0.16738866 0.16556586 0.16376287 0.16197947 0.16021545 0.15847063 0.15674476 0.15503767 0.15334915 0.15167896 0.15002696 0.14839292 0.14677665 0.14517796 0.14359665 0.14203255 0.14048547 0.1389552 0.13744159 0.13594446 0.1344636 0.13299885 0.13155004 0.130117 0.12869956 0.12729754 0.12591076 0.124539085 0.123182334 0.12184036 0.12051298 0.11920005 0.11790141 0.116616905 0.11534639 0.11408969 0.11284668 0.1116172 0.1104011 0.10919824 0.10800848 0.10683167 0.10566767 0.10451635 0.10337756 0.10225117 0.10113705 0.10003506 0.09894506 0.09786694 0.09680055 0.09574578 0.09470249 0.09367057 0.09264988 0.09164031 0.09064173 0.08965403 0.088677086 0.08771078 0.086755 0.08580963 0.08487456 0.08394967 0.08303486 0.08213001 0.081235014 0.080349766 0.079474166 0.0786081 0.07775147 0.07690417 0.0760661 0.07523716 0.07441725 0.073606275 0.07280413 0.072010726 0.07122596 0.070449755 0.069681995 0.0689226 0.068171486 0.06742855 0.06669371 0.065966874 0.06524796 0.06453688 0.06383354 0.06313787 0.062449772 0.061769176 0.061095994 0.06043015 0.059771556 0.05912014 0.058475826 0.05783853 0.057208173 0.05658469 0.055967998 0.055358026 0.054754704 0.05415795 0.053567704 0.052983887 0.05240643 0.05183527 0.051270332 0.050711546 0.050158855

</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="3.325" PeakHeight="280.698" Num="5" zHalfNm="244.018" Error="1.254">
-84.803 19.914 -12.083 5.143 -0.869
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="1099.6964" C="-0.12882747" Error="0.0204"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6576.0" A="2.67165737E10" B="-8255033.5" C="637.63226" Error="0.0204"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6580.0" A="4.4754933E12" B="-1.36128934E9" C="103514.33" Error="0.0166"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6593.0" A="2.60516767E12" B="-7.9280128E8" C="60316.15" Error="0.0246"/>
<QuasiParabolic ID="6" StartDistance="6593.0" EndDistance="6597.0" A="7.6529365E12" B="-2.32405222E9" C="176443.17" Error="0.0128"/>
<QuasiParabolic ID="7" StartDistance="6597.0" EndDistance="6614.0" A="1.93584892E13" B="-5.8728023E9" C="445410.12" Error="0.0353"/>
<QuasiParabolic ID="8" StartDistance="6614.0" EndDistance="6623.0" A="-2.49751216E13" B="7.5331881E9" C="-568045.44" Error="0.016"/>
<QuasiParabolic ID="9" StartDistance="6623.0" EndDistance="6650.698" A="-6.9559653E12" B="2.09180019E9" C="-157250.64" Error="0.00938"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="280.698" PeakDensity="137166.56" PeakScaleHeight="28.514" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
