<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-12 -102 22:50:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.12 (102) 22:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610204122250001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.593" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.972" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.075" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="269.937" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="250.197" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.034" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.811" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.250" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.668" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.282" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.670" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.700" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 240.000 242.500 245.000 245.000 247.500 250.000 250.000 252.500 255.000 257.397 260.044 262.980 266.257 269.937 274.100 278.848 284.312 290.668 298.155 307.102 317.985 331.507
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 57 54 57 54 54 54 69 69 69 66 66 63 0 66 69 66 0 66 69 63 60 63 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="396">
<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 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 250.197 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0
</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 0.38165537 0.41315803 0.44826886 0.48648795 0.52722204 0.5699578 0.61433727 0.6601478 0.70732665 0.75586665 0.8058551 0.85740036 0.91063935 0.96571445 1.0227998 1.0820345 1.1435807 1.207557 1.274047 1.3431101 1.414709 1.4887055 1.5648595 1.6427829 1.7219255 1.801626 1.8811166 1.9595578 2.0361547 2.1101565 2.1809464 2.248042 2.3111298 2.369977 2.4244983 2.4746861 2.520593 2.5623004 2.5999162 2.6335673 2.6633663 2.689435 2.7118785 2.7307987 2.7462761 2.7583802 2.7671669 2.772678 2.7749372 2.775 2.7743475 2.7717543 2.7672598 2.7609453 2.7528918 2.7431803 2.7318916 2.7191057 2.7049024 2.6893592 2.6725535 2.6545603 2.6354537 2.6153054 2.5941858 2.5721626 2.5493023 2.5256684 2.501323 2.4763253 2.4507332 2.4246013 2.397983 2.3709288 2.343487 2.3157043 2.2876248 2.259291 2.2307425 2.2020175 2.1731524 2.1441815 2.1151366 2.086049 2.0569475 2.0278587 1.9988089 1.9698217 1.9409198 1.9121242 1.8834547 1.8549296 1.826566 1.7983798 1.7703857 1.7425975 1.7150277 1.6876876 1.6605883 1.633739 1.6071488 1.5808257 1.5547769 1.5290089 1.5035274 1.4783378 1.4534444 1.4288512 1.4045616 1.3805785 1.3569041 1.3335406 1.3104893 1.2877512 1.2653272 1.2432175 1.2214221 1.1999408 1.1787729 1.1579177 1.1373739 1.1171403 1.0972153 1.077597 1.0582837 1.0392731 1.0205632 1.0021513 0.98403496 0.9662116 0.9486784 0.9314324 0.91447085 0.89779055 0.88138855 0.86526155 0.8494064 0.83381987 0.8184986 0.8034393 0.78863853 0.774093 0.7597992 0.74575377 0.7319532 0.71839416 0.7050731 0.6919867 0.67913145 0.66650397 0.6541008 0.64191854 0.6299539 0.61820346 0.6066639 0.59533185 0.584204 0.57327724 0.5625482 0.55201375 0.5416707 0.5315158 0.52154607 0.5117583 0.50214964 0.49271688 0.48345718 0.47436753 0.46544504 0.45668688 0.4480902 0.43965217 0.4313701 0.42324126 0.41526294 0.40743253 0.39974743 0.39220506 0.38480288 0.37753844 0.37040925 0.36341295 0.3565471 0.3498094 0.34319752 0.33670923 0.33034226 0.32409444 0.31796363 0.31194764 0.30604446 0.30025196 0.29456818 0.2889911 0.2835188 0.27814928 0.27288073 0.26771128 0.2626391 0.2576624 0.25277936 0.24798834 0.2432876 0.23867545 0.23415026 0.22971043 0.22535437 0.22108051 0.21688734 0.21277334 0.20873705 0.204777 0.2008918 0.19708002 0.1933403 0.18967131 0.1860717 0.18254016 0.17907546 0.17567632 0.17234151 0.16906983 0.16586009 0.16271113 0.1596218 0.15659098 0.15361759 0.15070054 0.14783874 0.14503118 0.14227685 0.1395747 0.1369238 0.13432315 0.13177182 0.12926885 0.12681337 0.12440446 0.12204123 0.11972284 0.11744843 0.11521717 0.11302824 0.11088086 0.10877422 0.106707565 0.10468013 0.10269117 0.10073998 0.09882582 0.096948 0.09510582 0.09329862 0.09152573 0.089786515 0.08808032 0.086406514 0.084764495 0.083153665 0.08157343 0.0800232 0.07850241 0.07701051 0.07554695 0.074111186 0.07270269 0.07132096 0.06996547 0.06863573 0.067331254 0.06605156 0.06479617 0.06356464 0.062356506 0.061171323 0.060008664 0.05886809 0.05774919 0.05665155 0.055574767 0.054518446 0.053482193 0.052465636 0.05146839 0.0504901

</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="2.775" PeakHeight="250.197" Num="5" zHalfNm="229.034" Error="1.808">
-51.195 3.634 -2.578 1.465 -0.523
</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="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="-1508.2155" C="0.27168787" Error="0.0274"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6552.0" A="1.59881118E11" B="-4.8937632E7" C="3744.8381" Error="0.0373"/>
<QuasiParabolic ID="4" StartDistance="6552.0" EndDistance="6569.0" A="-7.3471119E9" B="2108837.2" C="-150.64946" Error="0.0152"/>
<QuasiParabolic ID="5" StartDistance="6569.0" EndDistance="6574.0" A="5.1184324E12" B="-1.55848781E9" C="118634.3" Error="0.0344"/>
<QuasiParabolic ID="6" StartDistance="6574.0" EndDistance="6588.0" A="6.7162866E12" B="-2.04460096E9" C="155606.7" Error="0.04"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6601.0" A="1.55922905E13" B="-4.7391985E9" C="360114.72" Error="0.0244"/>
<QuasiParabolic ID="8" StartDistance="6601.0" EndDistance="6620.197" A="-1.70475504E13" B="5.150164E9" C="-388965.94" Error="0.00942"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="250.197" PeakDensity="95541.25" PeakScaleHeight="16.282" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
