<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-02 -092 07:40:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 65% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.02 (092) 07:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609204020740001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.575" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.880" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.872" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.925" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="252.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="223.618" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="205.100" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.754" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.498" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.955" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.276" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.980" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="38">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 212.500 212.500 213.750 215.000 215.000 217.500 217.500 217.500 218.750 220.000 221.250 222.500 223.750 225.000 225.000 227.500 227.500 230.000 232.500 235.000 235.000 237.500 240.000 242.500 242.500 245.000 245.000 245.000 250.000 252.500 252.500 256.308 261.042 267.083 275.061 286.087
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 72 72 72 0 72 75 63 66 63 0 0 0 0 0 84 84 96 93 0 0 93 96 0 0 96 102 102 102 102 90 105 105 0 90 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 10.9375 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="352">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 223.618 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0
</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 0.3538169 0.35312194 0.35206616 0.35058403 0.34861574 0.3462502 0.3433677 0.34006724 0.336247 0.33195284 0.32717335 0.32179055 0.31589526 0.3093662 0.30218917 0.2942784 0.28568256 0.27623004 0.26589635 0.25450236 0.24202472 0.22809964 0.21270788 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.20614286 0.21257143 0.219 0.22542857 0.23185714 0.23828572 0.24471429 0.25114286 0.25757143 0.264 0.27042857 0.27685714 0.2832857 0.28971428 0.29614285 0.30257142 0.309 0.31542858 0.32185715 0.32828572 0.3347143 0.34114286 0.34757143 0.354 0.3869787 0.4273908 0.4755636 0.53057796 0.59072447 0.65443 0.72071946 0.789239 0.8599712 0.9331331 1.0090603 1.0881495 1.1708536 1.2576305 1.348966 1.4452782 1.5469775 1.6543108 1.7673202 1.8857064 2.008738 2.135165 2.263229 2.3907712 2.515598 2.6356568 2.7493482 2.8555405 2.9536626 3.0434842 3.12509 3.1986973 3.2646606 3.3233323 3.3750896 3.420278 3.4592042 3.4921534 3.5193577 3.5410113 3.5572693 3.568245 3.5740154 3.575 3.5747514 3.5717947 3.565622 3.5563874 3.544246 3.5293527 3.5118613 3.4919248 3.4696932 3.4453146 3.4189334 3.3906906 3.3607235 3.329165 3.2961438 3.261784 3.226205 3.1895218 3.1518438 3.1132762 3.073919 3.0338678 2.9932132 2.9520411 2.9104328 2.8684654 2.8262115 2.783739 2.7411127 2.6983922 2.6556342 2.6128914 2.570213 2.5276446 2.4852288 2.4430048 2.4010093 2.3592758 2.3178353 2.276716 2.235944 2.195543 2.1555345 2.1159377 2.0767703 2.0380483 1.9997851 1.9619935 1.9246844 1.8878671 1.8515497 1.8157393 1.7804415 1.745661 1.7114015 1.6776656 1.6444552 1.6117713 1.5796143 1.5479836 1.5168784 1.4862968 1.4562368 1.4266957 1.3976703 1.369157 1.341152 1.313651 1.2866493 1.2601421 1.2341243 1.2085905 1.1835352 1.1589526 1.1348368 1.1111817 1.0879813 1.0652293 1.0429193 1.0210449 0.9995996 0.9785769 0.9579704 0.93777335 0.91797924 0.89858156 0.8795737 0.86094916 0.8427013 0.82482374 0.80731 0.7901536 0.7733483 0.7568877 0.7407655 0.7249756 0.7095118 0.69436806 0.6795384 0.6650169 0.6507976 0.63687485 0.6232429 0.6098961 0.59682894 0.58403593 0.57151175 0.559251 0.5472486 0.5354993 0.523998 0.51273984 0.5017199 0.4909334 0.48037556 0.47004175 0.45992744 0.45002812 0.4403394 0.43085694 0.4215765 0.41249394 0.40360513 0.3949061 0.3863929 0.37806165 0.36990857 0.36192995 0.35412213 0.34648156 0.3390047 0.33168814 0.3245285 0.31752247 0.31066683 0.3039584 0.29739404 0.29097077 0.28468555 0.2785355 0.27251768 0.26662934 0.26086774 0.25523013 0.24971393 0.24431653 0.23903538 0.23386803 0.22881204 0.22386503 0.21902467 0.21428868 0.20965484 0.20512095 0.20068488 0.19634452 0.19209783 0.1879428 0.18387747 0.1798999 0.17600821 0.17220056 0.16847515 0.16483021 0.161264 0.15777484 0.15436107 0.15102105 0.14775322 0.144556 0.14142789 0.1383674 0.13537306 0.13244346 0.12957719 0.1267729 0.12402923 0.121344894 0.11871861 0.11614911 0.1136352 0.11117565 0.1087693 0.106414996 0.10411162 0.10185807 0.099653274 0.097496174 0.095385745 0.09332097 0.091300875 0.08932448 0.087390855 0.08549906 0.08364821 0.081837416 0.080065794 0.07833252 0.07663675 0.07497768 0.07335451 0.07176647 0.07021281 0.068692766 0.06720562 0.065750666 0.0643272 0.06293455 0.061572038 0.06023902 0.058934852 0.05765892 0.0564106 0.055189304 0.053994443 0.052825447 0.051681757 0.050562825

</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="3.575" PeakHeight="223.618" Num="5" zHalfNm="205.1" Error="1.181">
-46.425 4.82 -3.027 1.693 -0.679
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="1943.6351" C="-0.25722435" Error="0.025"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6549.0" A="4.0779731E10" B="-1.2628067E7" C="977.55273" Error="0.025"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6553.0" A="1.04061941E13" B="-3.17812352E9" C="242655.33" Error="0.0102"/>
<QuasiParabolic ID="5" StartDistance="6553.0" EndDistance="6558.0" A="9.2438696E12" B="-2.82337766E9" C="215587.88" Error="0.0295"/>
<QuasiParabolic ID="6" StartDistance="6558.0" EndDistance="6577.0" A="2.61436547E13" B="-7.9773225E9" C="608538.8" Error="0.0995"/>
<QuasiParabolic ID="7" StartDistance="6577.0" EndDistance="6593.618" A="-3.5618604E13" B="1.08039629E10" C="-819261.5" Error="0.00135"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="223.618" PeakDensity="158568.55" PeakScaleHeight="14.276" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
