<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 23:35:00.000"
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" >
2026.05.19 (139) 23:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905192335001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.275" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.504" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.476" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.575" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="267.178" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="267.178" 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="3.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="268.810" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="247.516" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.088" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.496" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.925" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.176" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="30.050" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.240" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
267.178 270.000 272.500 277.500 280.000 285.000 290.000 295.000 302.500 310.000 317.500 327.500 337.500 350.000 367.500
</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
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-4.6875 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 7.8125 -1.5625 -10.9375 -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="423">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.16766 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.33533 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.503 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 268.81 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0
</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 0.35313663 0.35250106 0.35157028 0.35057116 0.34928453 0.34779024 0.34616655 0.34427524 0.34219706 0.33994052 0.33744645 0.3347284 0.33180094 0.32861534 0.32519272 0.3214944 0.3176087 0.31338787 0.308931 0.30417058 0.29910955 0.2937379 0.2880166 0.28195685 0.27551395 0.26861888 0.26128122 0.25347146 0.24514265 0.23628163 0.22667976 0.21644036 0.20549083 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 0.20291059 0.2072896 0.21166864 0.21604766 0.22042668 0.2248057 0.22918473 0.23356375 0.23794277 0.24232179 0.24670081 0.25107983 0.25545886 0.2598379 0.2642169 0.26859593 0.27297494 0.27735397 0.281733 0.286112 0.29049104 0.29487005 0.29924908 0.30362812 0.30800712 0.31238616 0.31676516 0.3211442 0.32552323 0.32990223 0.33428127 0.33866027 0.3430393 0.34741834 0.35179734 0.354 0.36889783 0.40040395 0.4338768 0.46924126 0.5064346 0.5454373 0.5862489 0.6288863 0.6733913 0.7198174 0.768232 0.8186936 0.87128776 0.92608434 0.9831621 1.0425948 1.1044376 1.1687404 1.2355251 1.3048059 1.3765357 1.4506655 1.5270644 1.6055716 1.6859914 1.768041 1.8513956 1.9356788 2.0204592 2.1052904 2.1896954 2.2731764 2.3552809 2.4355261 2.5134966 2.5888035 2.661092 2.7300835 2.7955124 2.8571677 2.9148927 2.9685328 3.017999 3.063222 3.104126 3.1406808 3.1728668 3.2006567 3.224048 3.2430336 3.257612 3.2677865 3.273555 3.275 3.274956 3.2732959 3.2693048 3.2630794 3.2547174 3.2443159 3.231973 3.2177851 3.2018487 3.1842585 3.1651077 3.1444883 3.12249 3.0992007 3.074706 3.0490892 3.022431 2.9948094 2.9663002 2.9369767 2.9069088 2.8761644 2.8448088 2.8129036 2.780509 2.7476819 2.7144763 2.6809444 2.6471355 2.6130967 2.578872 2.544504 2.5100324 2.4754949 2.4409273 2.4063628 2.371833 2.3373678 2.3029947 2.26874 2.2346277 2.2006805 2.1669195 2.1333647 2.1000338 2.0669436 2.0341103 2.0015476 1.9692686 1.9372855 1.9056093 1.8742496 1.8432157 1.8125155 1.7821562 1.7521443 1.7224853 1.6931843 1.6642452 1.6356719 1.6074673 1.5796337 1.5521731 1.525087 1.4983761 1.4720411 1.446082 1.4204984 1.3952898 1.3704551 1.3459932 1.3219023 1.2981807 1.2748263 1.2518367 1.2292095 1.2069421 1.1850313 1.1634743 1.142268 1.1214088 1.1008935 1.0807185 1.0608802 1.0413747 1.0221984 1.0033473 0.9848176 0.96660525 0.9487062 0.9311165 0.91383195 0.89684856 0.8801621 0.8637685 0.8476637 0.8318434 0.81630355 0.80104 0.7860487 0.7713254 0.7568662 0.7426669 0.72872347 0.715032 0.70158833 0.6883886 0.6754289 0.66270536 0.650214 0.63795114 0.6259129 0.6140956 0.60249555 0.591109 0.5799324 0.5689622 0.5581948 0.5476268 0.5372547 0.52707505 0.51708466 0.50728005 0.49765807 0.48821548 0.4789491 0.46985582 0.46093255 0.45217627 0.443584 0.43515277 0.42687973 0.41876203 0.41079682 0.40298134 0.39531294 0.3877889 0.38040656 0.3731634 0.36605683 0.35908434 0.3522435 0.3455319 0.33894715 0.33248687 0.32614884 0.3199307 0.31383032 0.30784547 0.30197403 0.29621387 0.29056293 0.2850192 0.27958062 0.27424526 0.26901123 0.2638766 0.2588395 0.2538981 0.24905066 0.24429536 0.23963049 0.23505434 0.23056528 0.22616161 0.22184178 0.21760418 0.21344727 0.20936953 0.20536944 0.20144558 0.19759646 0.19382071 0.19011693 0.18648374 0.18291983 0.17942387 0.17599458 0.1726307 0.16933097 0.16609421 0.1629192 0.15980476 0.15674977 0.15375309 0.1508136 0.14793022 0.14510189 0.14232755 0.1396062 0.1369368 0.13431838 0.13174996 0.1292306 0.12675937 0.12433534 0.121957615 0.11962532 0.11733758 0.11509355 0.112892404 0.11073331 0.10861548 0.106538124 0.104500465 0.10250175 0.100541234 0.098618194 0.09673191 0.09488168 0.09306683 0.09128666 0.089540526 0.08782778 0.08614777 0.08449989 0.08288351 0.08129803 0.07974287 0.07821745 0.07672119 0.075253546 0.07381397 0.07240192 0.07101687 0.06965831 0.06832573 0.067018636 0.06573654 0.064478956 0.06324543 0.062035497 0.060848705 0.059684608 0.05854278 0.057422787 0.05632422 0.055246662 0.05418972 0.05315299 0.052136093 0.051138643 0.050160278

</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="3.275" PeakHeight="268.81" Num="5" zHalfNm="247.516" Error="1.849">
-53.87 1.335 -1.366 0.774 -0.18
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6515.168" A="-1.22908279E11" B="3.7934652E7" C="-2926.9314" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.168" EndDistance="6550.335" A="0.0" B="-908.49365" C="0.17947336" Error="0.0195"/>
<QuasiParabolic ID="3" StartDistance="6550.335" EndDistance="6574.0" A="5.4942007E10" B="-1.683843E7" C="1290.1681" Error="0.0195"/>
<QuasiParabolic ID="4" StartDistance="6574.0" EndDistance="6584.0" A="-2.48169472E10" B="7426539.5" C="-555.3574" Error="0.00864"/>
<QuasiParabolic ID="5" StartDistance="6584.0" EndDistance="6589.0" A="6.6004278E12" B="-2.00510221E9" C="152279.45" Error="0.0175"/>
<QuasiParabolic ID="6" StartDistance="6589.0" EndDistance="6591.0" A="1.6225568E12" B="-4.94138208E8" C="37621.383" Error="0.00721"/>
<QuasiParabolic ID="7" StartDistance="6591.0" EndDistance="6598.0" A="6.4501721E12" B="-1.95904947E9" C="148751.05" Error="0.00431"/>
<QuasiParabolic ID="8" StartDistance="6598.0" EndDistance="6621.0" A="1.39996661E13" B="-4.24746829E9" C="322168.66" Error="0.0199"/>
<QuasiParabolic ID="9" StartDistance="6621.0" EndDistance="6632.0" A="-2.00767114E13" B="6.0459546E9" C="-455162.75" Error="0.00547"/>
<QuasiParabolic ID="10" StartDistance="6632.0" EndDistance="6638.81" A="-2.76134353E13" B="8.3187907E9" C="-626516.56" Error="2.06E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.503" Depth="0.154"/>
<TopsideChapman PeakHeight="268.81" PeakDensity="133072.27" PeakScaleHeight="16.176" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
