<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 01:40:00.000"
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 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" >
2026.05.07 (127) 01:40:00</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">
FF202612705070140001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.680" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.615" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="3.625" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="285.830" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="250.476" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="233.904" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.327" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.798" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.914" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.496" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.590" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.140" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 250.000 252.500 252.500 252.500 255.000 255.000 255.000 257.500 257.500 260.000 260.000 260.000 262.500 265.000 265.000 267.500 270.000 270.000 272.500 272.500 277.500 277.500 279.858 282.600 285.830 289.691 294.387 300.222
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 96 93 93 93 108 111 96 99 102 96 102 99 108 108 108 108 105 108 93 93 84 81 84 81 81 78 93 93
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="353">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 250.476 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0
</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 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.3962615 0.44164407 0.49034342 0.5425513 0.59847486 0.65828246 0.7221467 0.7902021 0.8625741 0.93935895 1.0205952 1.106289 1.1963859 1.2907833 1.3892863 1.4916775 1.5976188 1.7067221 1.8185581 1.9325597 2.0481758 2.1647735 2.2816677 2.3981667 2.513539 2.627069 2.738036 2.845746 2.9494777 3.0486066 3.142495 3.230592 3.3123314 3.3872554 3.4549239 3.5149364 3.566963 3.6107213 3.6459663 3.672515 3.6902149 3.698981 3.7 3.6993701 3.6947634 3.6858869 3.6729794 3.6562798 3.6360269 3.612456 3.5857995 3.5562844 3.5241325 3.4895592 3.4527721 3.413972 3.3733513 3.3310945 3.2873774 3.2423675 3.1962235 3.1490958 3.1011264 3.0524495 3.00319 2.9534662 2.903388 2.853058 2.8025723 2.752019 2.7014806 2.651033 2.6007462 2.5506842 2.500906 2.4514654 2.4024112 2.3537881 2.305636 2.2579908 2.2108853 2.1643476 2.118404 2.073076 2.0283837 1.9843436 1.9409704 1.8982759 1.85627 1.8149606 1.7743539 1.7344543 1.6952645 1.6567861 1.6190193 1.581963 1.545615 1.5099722 1.4750307 1.4407855 1.4072313 1.3743618 1.3421699 1.3106487 1.27979 1.249586 1.2200278 1.1911067 1.1628135 1.1351388 1.1080729 1.0816061 1.0557288 1.0304307 1.0057018 0.981532 0.9579112 0.93482935 0.91227615 0.8902416 0.86871564 0.8476882 0.82714933 0.8070892 0.787498 0.7683661 0.74968386 0.7314418 0.7136306 0.6962411 0.67926407 0.6626906 0.64651185 0.6307191 0.6153039 0.60025764 0.5855722 0.57123935 0.5572512 0.54359984 0.5302776 0.51727694 0.5045904 0.4922108 0.48013097 0.46834394 0.45684293 0.44562116 0.43467215 0.42398942 0.41356674 0.40339795 0.39347702 0.3837981 0.37435538 0.36514324 0.35615623 0.3473889 0.338836 0.3304924 0.3223531 0.31441313 0.30666772 0.29911214 0.29174188 0.28455237 0.27753928 0.27069834 0.26402536 0.2575163 0.25116712 0.24497397 0.23893304 0.23304063 0.22729312 0.22168697 0.21621875 0.21088508 0.20568267 0.2006083 0.19565886 0.1908313 0.18612261 0.18152991 0.17705032 0.17268111 0.16841954 0.164263 0.16020888 0.15625468 0.15239796 0.14863633 0.14496742 0.14138897 0.13789877 0.13449465 0.13117446 0.12793617 0.12477776 0.121697254 0.11869274 0.11576235 0.11290426 0.110116675 0.107397884 0.10474617 0.1021599 0.09963745 0.097177245 0.094777755 0.09243749 0.09015498 0.08792882 0.08575759 0.083639964 0.08157461 0.079560235 0.077595584 0.07567944 0.07381059 0.07198788 0.070210174 0.06847635 0.066785336 0.06513607 0.06352752 0.06195869 0.060428593 0.058936276 0.057480805 0.05606127 0.054676786 0.05332649 0.052009534 0.0507251

</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="3.7" PeakHeight="250.476" Num="5" zHalfNm="233.904" Error="0.418">
-42.843 0.576 -0.36 0.16 -0.009
</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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="1964.2396" C="-0.26157543" Error="0.0369"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6577.0" A="2.12828221E10" B="-6601700.0" C="511.8685" Error="0.0369"/>
<QuasiParabolic ID="4" StartDistance="6577.0" EndDistance="6581.0" A="1.22003506E13" B="-3.71013453E9" C="282063.7" Error="0.0253"/>
<QuasiParabolic ID="5" StartDistance="6581.0" EndDistance="6585.0" A="6.7842909E12" B="-2.06416589E9" C="157009.11" Error="0.0141"/>
<QuasiParabolic ID="6" StartDistance="6585.0" EndDistance="6609.0" A="2.3822833E13" B="-7.2391214E9" C="549944.25" Error="0.0361"/>
<QuasiParabolic ID="7" StartDistance="6609.0" EndDistance="6620.476" A="-5.7023396E13" B="1.72263731E10" C="-1300978.4" Error="0.0109"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="250.476" PeakDensity="169851.11" PeakScaleHeight="12.496" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
