<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 01:20:00.000"
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: 70% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.12 (132) 01:20:00</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">
FF202613205120120001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.575" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.570" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.525" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="297.259" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.406" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.178" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.467" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.811" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.477" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.029" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.650" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.760" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="45">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 247.500 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 257.500 260.000 260.000 260.000 262.500 265.000 265.000 267.500 267.500 272.500 275.000 277.500 280.000 280.000 285.000 287.500 290.000 290.000 291.752 294.064 297.259 301.961 309.562 323.941 361.464
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 72 69 78 90 96 99 93 87 87 90 93 93 63 51 99 105 90 81 66 69 72 66 66 69 75 78 72 78 63 60 57 60 90 90 90 96 108 108 84 84 87 78 90
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="432">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.33333 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.66667 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.406 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0
</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 0.35347393 0.35283697 0.35190412 0.35075444 0.34931904 0.34760568 0.34569573 0.3434548 0.34089813 0.338043 0.33497614 0.33158195 0.3278234 0.3237977 0.31935477 0.31466332 0.30954042 0.30405807 0.29813874 0.29176548 0.28499955 0.27773643 0.26987928 0.2613832 0.2523016 0.2425206 0.23193197 0.22042523 0.20793872 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 0.20169231 0.20676923 0.21184616 0.21692307 0.222 0.22707692 0.23215385 0.23723076 0.2423077 0.24738462 0.25246155 0.25753847 0.26261538 0.2676923 0.27276924 0.27784616 0.28292307 0.288 0.29307693 0.29815385 0.30323076 0.30830768 0.31338462 0.31846154 0.32353845 0.3286154 0.3336923 0.33876923 0.34384614 0.3489231 0.354 0.38546208 0.42136607 0.46155486 0.5056229 0.55308867 0.6035036 0.656534 0.7119949 0.7698401 0.83008206 0.89282805 0.9582453 1.0265146 1.0978705 1.1725417 1.2507876 1.3328602 1.4190333 1.5094993 1.6044489 1.7039895 1.8080939 1.9166207 2.0292394 2.1453936 2.2642863 2.3849158 2.5061738 2.6267993 2.7455308 2.861263 2.9730322 3.080041 3.181729 3.277713 3.367812 3.4519372 3.5300672 3.6023247 3.6688235 3.729698 3.7851267 3.835267 3.8802755 3.9202983 3.9554849 3.9859545 4.0118084 4.033149 4.050051 4.062571 4.070761 4.0746465 4.075 4.074519 4.071582 4.066062 4.058064 4.0476913 4.035048 4.0202384 4.0033655 3.9845319 3.9638386 3.9413855 3.9172704 3.8915896 3.8644373 3.8359053 3.806083 3.7750576 3.7429135 3.7097328 3.6755948 3.6405761 3.6047506 3.5681894 3.530961 3.4931312 3.4547627 3.4159162 3.3766494 3.3370175 3.2970731 3.2568662 3.2164447 3.1758537 3.1351368 3.0943341 3.0534847 3.012625 2.9717896 2.9310107 2.890319 2.8497436 2.809311 2.7690468 2.7289748 2.689117 2.6494937 2.6101246 2.571027 2.532218 2.4937124 2.4555242 2.4176667 2.3801515 2.3429892 2.30619 2.2697628 2.233715 2.1980546 2.1627872 2.127919 2.0934546 2.0593982 2.0257537 1.9925239 1.9597112 1.9273176 1.8953445 1.8637929 1.8326632 1.8019555 1.7716696 1.7418047 1.71236 1.683334 1.6547252 1.6265317 1.5987514 1.5713819 1.5444207 1.517865 1.4917116 1.4659578 1.4405999 1.4156346 1.3910584 1.3668677 1.3430583 1.3196269 1.2965691 1.273881 1.2515583 1.2295971 1.207993 1.1867418 1.1658392 1.1452807 1.1250621 1.105179 1.0856267 1.0664012 1.047498 1.0289125 1.0106405 0.99267745 0.97501904 0.95766085 0.94059855 0.92382777 0.9073442 0.8911437 0.8752218 0.8595744 0.8441973 0.8290863 0.8142373 0.79964626 0.7853091 0.7712217 0.7573803 0.7437808 0.7304194 0.71729225 0.7043956 0.6917256 0.6792786 0.6670509 0.65503895 0.6432392 0.631648 0.62026197 0.60907763 0.59809166 0.58730066 0.5767014 0.56629056 0.556065 0.5460215 0.5361571 0.5264686 0.516953 0.50760734 0.4984287 0.48941424 0.48056108 0.47186643 0.46332753 0.4549417 0.44670624 0.43861857 0.43067607 0.42287624 0.41521654 0.40769455 0.4003078 0.39305395 0.38593066 0.37893564 0.37206656 0.36532128 0.35869756 0.35219324 0.34580624 0.33953446 0.33337584 0.32732838 0.32139012 0.31555912 0.30983344 0.3042112 0.29869056 0.29326972 0.2879469 0.28272036 0.27758834 0.27254915 0.26760113 0.26274267 0.25797218 0.25328803 0.24868868 0.24417265 0.2397384 0.23538448 0.23110944 0.22691186 0.22279035 0.21874353 0.21477008 0.21086864 0.20703796 0.20327672 0.1995837 0.19595765 0.19239736 0.18890166 0.18546937 0.18209936 0.1787905 0.17554165 0.17235178 0.1692198 0.16614465 0.16312534 0.16016081 0.1572501 0.15439224 0.15158626 0.14883123 0.14612623 0.14347033 0.14086267 0.13830237 0.13578856 0.1333204 0.13089707 0.12851776 0.12618166 0.12388801 0.12163601 0.119424924 0.117254004 0.11512253 0.11302977 0.11097504 0.10895764 0.1069769 0.10503214 0.10312272 0.101247996 0.099407345 0.09760013 0.09582577 0.094083644 0.092373185 0.09069381 0.08904495 0.08742607 0.0858366 0.08427602 0.0827438 0.08123944 0.079762414 0.07831224 0.07688842 0.07549048 0.07411796 0.07277038 0.0714473 0.07014826 0.06887285 0.067620605 0.06639114 0.06518402 0.06399884 0.06283521 0.061692726 0.06057102 0.0594697 0.058388405 0.057326764 0.056284428 0.05526104 0.054256253 0.053269736 0.052301157 0.051350184 0.0504165

</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="4.075" PeakHeight="254.406" Num="5" zHalfNm="232.178" Error="1.173">
-56.715 5.585 -3.496 1.792 -0.572
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="13" 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="6510.333" A="-1.64983013E11" B="5.0920684E7" C="-3928.9397" Error="0.00156"/>
<QuasiParabolic ID="2" StartDistance="6510.333" EndDistance="6540.667" A="0.0" B="32.25188" C="0.035069026" Error="5.74E-4"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6541.0" A="-1.33408364E13" B="4.07913472E9" C="-311812.12" Error="1.46E-9"/>
<QuasiParabolic ID="4" StartDistance="6541.0" EndDistance="6543.0" A="1.58062281E12" B="-4.83304864E8" C="36944.902" Error="0.0196"/>
<QuasiParabolic ID="5" StartDistance="6543.0" EndDistance="6545.0" A="-7.7985671E11" B="2.3822336E8" C="-18192.512" Error="0.0179"/>
<QuasiParabolic ID="6" StartDistance="6545.0" EndDistance="6570.0" A="6.9214355E10" B="-2.1233032E7" C="1628.4509" Error="0.0197"/>
<QuasiParabolic ID="7" StartDistance="6570.0" EndDistance="6572.0" A="9.2639823E12" B="-2.82024909E9" C="214643.36" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6572.0" EndDistance="6579.0" A="7.3287053E12" B="-2.23130317E9" C="169836.16" Error="0.00447"/>
<QuasiParabolic ID="9" StartDistance="6579.0" EndDistance="6586.0" A="1.21327384E13" B="-3.69171738E9" C="280826.75" Error="0.00606"/>
<QuasiParabolic ID="10" StartDistance="6586.0" EndDistance="6596.0" A="2.98860979E13" B="-9.0829588E9" C="690122.4" Error="0.0179"/>
<QuasiParabolic ID="11" StartDistance="6596.0" EndDistance="6604.0" A="2.66444944E13" B="-8.1000596E9" C="615615.1" Error="0.0169"/>
<QuasiParabolic ID="12" StartDistance="6604.0" EndDistance="6624.406" A="-3.30804798E13" B="9.987456E9" C="-753821.25" Error="0.00827"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="254.406" PeakDensity="206025.12" PeakScaleHeight="17.029" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
