<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-16 -136 07:05:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.16 (136) 07:05:00</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">
FF202613605160705001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.429" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.400" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="255.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="255.000" 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="3.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="300.759" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="272.784" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.590" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.402" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="38.842" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.216" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.080" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.750" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.250" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="40">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
255.000 256.250 257.500 257.500 260.000 260.000 260.000 262.500 262.500 262.500 265.000 265.000 265.000 267.500 267.500 267.500 270.000 272.500 272.500 275.000 275.000 277.500 279.500 281.500 283.500 285.188 287.063 289.159 291.516 294.187 297.239 300.759 304.865 309.715 315.533 322.640 331.517 342.921 358.110 379.341
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 63 66 60 66 66 69 72 75 72 75 75 75 75 72 72 54 57 48 45 66 0 0 0 0 81 78 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" >
-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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="501">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.83333 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 177.66667 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 211.5 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 272.784 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0
</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 0.35306174 0.35235173 0.35142186 0.35027584 0.34891838 0.3472823 0.34552038 0.3434953 0.34128824 0.33877015 0.3360937 0.33313656 0.32991865 0.32646134 0.32272556 0.31874058 0.31447914 0.30992344 0.30501232 0.29980785 0.29430088 0.288361 0.2820187 0.27533066 0.26815805 0.26053688 0.25234902 0.24358158 0.23417579 0.22406323 0.21320657 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 0.20151724 0.20606896 0.21062069 0.21517241 0.21972413 0.22427586 0.22882758 0.2333793 0.23793103 0.24248275 0.24703449 0.2515862 0.25613794 0.26068965 0.26524138 0.2697931 0.27434483 0.27889654 0.28344828 0.288 0.29255173 0.29710343 0.30165517 0.30620688 0.31075862 0.31531036 0.31986207 0.3244138 0.3289655 0.33351725 0.33806896 0.3426207 0.3471724 0.35172415 0.354 0.3644608 0.38781586 0.41468978 0.44519797 0.47914886 0.51609206 0.5554273 0.59661 0.6392411 0.68305534 0.7279437 0.77390224 0.8209646 0.8692506 0.91888195 0.970016 1.0228213 1.0774988 1.1342471 1.1932813 1.254807 1.3190424 1.3862127 1.4565033 1.5300474 1.6069278 1.6870954 1.7703826 1.856409 1.9445881 2.0341287 2.1240263 2.2132528 2.3007188 2.385492 2.4668045 2.5441175 2.617087 2.68556 2.7495372 2.8090892 2.8643675 2.9155645 2.9628706 3.00649 3.0466247 3.0834603 3.117169 3.1479173 3.1758351 3.2010632 3.2237113 3.2438774 3.26166 3.277128 3.2903495 3.3013787 3.3102655 3.317041 3.321737 3.3243704 3.325 3.324966 3.3239326 3.3214908 3.3176851 3.3125598 3.3061595 3.2985294 3.2897139 3.2797577 3.2687054 3.256601 3.243488 3.2294097 3.2144089 3.1985273 3.1818066 3.164287 3.146009 3.1270115 3.1073325 3.08701 3.0660799 3.044578 3.0225396 2.999998 2.9769864 2.9535363 2.929679 2.9054444 2.8808618 2.855959 2.8307636 2.8053017 2.7795987 2.753679 2.7275662 2.7012832 2.6748514 2.6482923 2.6216257 2.5948708 2.5680466 2.5411704 2.5142593 2.4873297 2.460397 2.433476 2.4065807 2.3797247 2.3529208 2.3261812 2.2995172 2.2729402 2.2464602 2.2200873 2.193831 2.1676996 2.1417017 2.115845 2.090137 2.0645845 2.039194 2.0139718 1.9889232 1.9640538 1.9393681 1.9148711 1.8905668 1.8664591 1.8425518 1.8188479 1.7953506 1.7720625 1.7489861 1.7261237 1.7034773 1.6810484 1.6588387 1.6368496 1.6150821 1.5935373 1.5722158 1.5511181 1.5302448 1.5095961 1.4891722 1.4689729 1.4489983 1.4292479 1.4097214 1.3904183 1.3713379 1.3524796 1.3338425 1.3154259 1.2972286 1.2792495 1.2614877 1.2439419 1.2266109 1.2094932 1.1925876 1.1758925 1.1594065 1.1431282 1.1270558 1.1111878 1.0955226 1.0800585 1.0647937 1.0497266 1.0348554 1.0201782 1.0056933 0.99139893 0.97729313 0.9633742 0.94964015 0.9360892 0.9227194 0.9095289 0.89651585 0.88367826 0.87101424 0.858522 0.8461995 0.834045 0.8220565 0.81023204 0.7985699 0.7870681 0.7757248 0.7645381 0.7535061 0.7426271 0.7318991 0.72132033 0.7108889 0.7006032 0.69046116 0.68046117 0.67060137 0.66088 0.65129536 0.6418457 0.63252926 0.62334436 0.6142893 0.60536236 0.59656197 0.5878864 0.579334 0.5709032 0.5625924 0.55439997 0.5463244 0.538364 0.53051734 0.5227829 0.51515913 0.5076446 0.5002377 0.4929371 0.4857413 0.47864887 0.4716584 0.46476853 0.45797783 0.45128495 0.44468853 0.43818727 0.43177986 0.42546496 0.41924128 0.41310757 0.40706262 0.4011051 0.39523387 0.38944766 0.3837453 0.37812567 0.3725875 0.3671297 0.36175114 0.3564507 0.35122725 0.34607974 0.34100705 0.33600816 0.331082 0.32622752 0.32144374 0.3167296 0.31208414 0.30750638 0.30299535 0.2985501 0.2941697 0.28985316 0.28559962 0.2814082 0.27727792 0.27320796 0.26919746 0.26524556 0.26135138 0.25751415 0.25373298 0.2500071 0.24633572 0.24271803 0.23915325 0.23564065 0.23217943 0.22876889 0.22540827 0.22209685 0.21883392 0.21561877 0.21245073 0.20932908 0.20625317 0.20322233 0.20023592 0.19729327 0.19439375 0.19153674 0.18872163 0.18594779 0.18321462 0.18052153 0.17786796 0.1752533 0.17267701 0.17013851 0.16763726 0.16517271 0.16274434 0.1603516 0.15799397 0.15567097 0.15338205 0.15112674 0.14890455 0.14671499 0.14455757 0.14243183 0.1403373 0.13827355 0.13624011 0.13423653 0.13226238 0.13031723 0.12840065 0.12651223 0.12465155 0.12281822 0.121011816 0.11923196 0.11747826 0.11575033 0.11404779 0.11237027 0.11071741 0.10908884 0.1074842 0.10590315 0.10434534 0.10281043 0.10129808 0.09980796 0.09833975 0.096893124 0.09546776 0.09406336 0.092679605 0.09131619 0.089972824 0.08864921 0.08734506 0.086060084 0.08479401 0.08354654 0.08231742 0.08110638 0.07991314 0.07873745 0.07757905 0.07643769 0.07531311 0.07420508 0.07311334 0.07203765 0.070977785 0.069933504 0.06890459 0.06789081 0.06689193 0.065907754 0.064938046 0.063982606 0.06304122 0.06211368 0.061199784 0.06029933 0.05941212 0.058537964 0.057676665 0.05682804 0.055991895 0.05516805 0.054356325 0.053556543 0.052768525 0.051992096 0.051227093 0.050473344

</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="272.784" Num="5" zHalfNm="245.59" Error="1.683">
-66.448 9.036 -5.774 2.96 -1.058
</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="6513.833" A="-1.32737196E11" B="4.0968268E7" C="-3161.0066" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6513.833" EndDistance="6547.667" A="0.0" B="-720.00366" C="0.15056995" Error="0.0152"/>
<QuasiParabolic ID="3" StartDistance="6547.667" EndDistance="6577.0" A="4.996959E10" B="-1.533303E7" C="1176.2407" Error="0.0152"/>
<QuasiParabolic ID="4" StartDistance="6577.0" EndDistance="6580.0" A="-2.9203864E11" B="8.8668264E7" C="-6730.1978" Error="0.0032"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6590.0" A="5.0161847E12" B="-1.5247735E9" C="115871.76" Error="0.0134"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6592.0" A="4.5777158E12" B="-1.3917024E9" C="105775.32" Error="1.7E-5"/>
<QuasiParabolic ID="7" StartDistance="6592.0" EndDistance="6600.0" A="6.8555867E12" B="-2.08280422E9" C="158195.05" Error="0.00499"/>
<QuasiParabolic ID="8" StartDistance="6600.0" EndDistance="6615.0" A="1.86169006E13" B="-5.6468388E9" C="428197.66" Error="0.0155"/>
<QuasiParabolic ID="9" StartDistance="6615.0" EndDistance="6642.784" A="-1.43495392E13" B="4.3203389E9" C="-325179.34" Error="0.00773"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="101.5" Depth="0.154"/>
<TopsideChapman PeakHeight="272.784" PeakDensity="137166.56" PeakScaleHeight="21.08" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
