<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 01:25:00.000"
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: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.07 (127) 01:25:00</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">
FF202612705070125001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.765" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.306" 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="4.375" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="232.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="232.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.675" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.440" 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="238.189" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="221.698" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.433" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.670" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.957" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.480" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.170" 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="34">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
232.500 233.750 235.000 235.000 235.000 237.500 237.500 237.500 240.000 240.000 242.500 242.500 242.500 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 253.578 254.807 256.221 257.867 259.805 262.121 264.939 268.440 272.907 278.804 286.949 298.931 318.293
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 87 93 93 93 96 96 96 96 105 108 105 102 108 111 111 111 111 111 99 96 87 87 84 81 81 81 93 90 0 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 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="343">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 138.58333 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.16667 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.75 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 238.189 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0
</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 0.3533988 0.35268724 0.35168076 0.35038465 0.34873247 0.34680796 0.3446216 0.34204412 0.33923516 0.3360058 0.33251932 0.32860458 0.3243659 0.31978112 0.314722 0.3093164 0.3034716 0.29713094 0.29034886 0.28298154 0.27503994 0.26650268 0.25724816 0.24721296 0.23637795 0.22454801 0.21165071 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 0.2044898 0.20987755 0.2152653 0.22065306 0.22604081 0.23142858 0.23681633 0.24220408 0.24759184 0.2529796 0.25836736 0.2637551 0.26914287 0.27453062 0.27991837 0.28530613 0.29069388 0.29608163 0.3014694 0.30685714 0.3122449 0.31763265 0.3230204 0.32840815 0.3337959 0.3391837 0.34457144 0.3499592 0.354 0.36481214 0.40924847 0.45590392 0.5051321 0.5572554 0.6125806 0.67140603 0.73401517 0.80070466 0.87174433 0.9473792 1.0278398 1.1133277 1.2039685 1.2998104 1.4008503 1.5069407 1.6178218 1.7330807 1.8521866 1.9744599 2.0990577 2.225092 2.351568 2.4774792 2.6017683 2.7234638 2.841604 2.9553492 3.063895 3.1665785 3.2628057 3.3520703 3.433952 3.508138 3.5743163 3.6322732 3.6818316 3.7228487 3.7552273 3.7788844 3.7937675 3.7998426 3.8 3.7984543 3.7924242 3.782069 3.7676344 3.7493675 3.727513 3.7023132 3.6740057 3.6428235 3.608993 3.572734 3.534259 3.4937718 3.4514687 3.4075367 3.362155 3.315493 3.2677124 3.218965 3.169395 3.1191373 3.0683188 3.0170588 2.9654682 2.9136503 2.8617017 2.8097117 2.7577627 2.705931 2.6542869 2.6028948 2.5518134 2.5010967 2.4507937 2.4009483 2.3516006 2.3027866 2.2545383 2.2068841 2.1598494 2.113456 2.0677233 2.0226674 1.9783026 1.9346404 1.8916903 1.8494596 1.8079543 1.7671782 1.7271339 1.6878221 1.6492428 1.6113943 1.5742742 1.5378789 1.502204 1.467244 1.4329933 1.399445 1.366592 1.3344265 1.3029404 1.2721249 1.2419713 1.21247 1.1836119 1.1553868 1.127785 1.1007962 1.0744104 1.0486172 1.0234063 0.9987671 0.9746892 0.95116216 0.9281755 0.9057189 0.88378197 0.86235434 0.8414259 0.82098645 0.8010259 0.78153443 0.7625021 0.7439192 0.72577614 0.70806354 0.690772 0.67389226 0.65741545 0.64133245 0.6256347 0.61031336 0.5953601 0.5807666 0.5665246 0.55262625 0.53906345 0.52582866 0.51291424 0.50031275 0.4880169 0.47601962 0.4643139 0.4528929 0.4417499 0.43087837 0.4202719 0.40992418 0.3998291 0.38998058 0.38037282 0.37100005 0.36185664 0.35293707 0.344236 0.33574817 0.32746843 0.31939176 0.3115133 0.30382824 0.29633188 0.28901964 0.2818871 0.2749299 0.26814377 0.26152453 0.2550681 0.24877058 0.24262804 0.23663673 0.23079295 0.22509311 0.21953368 0.21411122 0.2088224 0.20366393 0.19863261 0.19372536 0.18893911 0.1842709 0.17971784 0.17527708 0.17094591 0.1667216 0.16260152 0.15858313 0.15466392 0.15084146 0.14711337 0.1434773 0.13993102 0.13647231 0.133099 0.129809 0.12660028 0.12347078 0.1204186 0.11744181 0.11453856 0.111707024 0.10894545 0.106252104 0.103625305 0.101063415 0.098564826 0.09612799 0.093751356 0.091433465 0.089172855 0.08696812 0.08481787 0.082720764 0.08067549 0.078680776 0.07673536 0.074838035 0.07298761 0.07118292 0.06942284 0.06770628 0.06603215 0.0643994 0.06280702 0.061254006 0.059739385 0.05826221 0.056821555 0.055416517 0.054046217 0.052709796 0.051406413 0.05013526

</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="3.8" PeakHeight="238.189" Num="5" zHalfNm="221.698" Error="0.818">
-42.861 0.925 -0.936 0.466 -0.033
</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="6508.583" A="-1.85709953E11" B="5.7317888E7" C="-4422.5513" Error="0.00149"/>
<QuasiParabolic ID="2" StartDistance="6508.583" EndDistance="6537.167" A="0.0" B="-2743.924" C="0.46160564" Error="0.0466"/>
<QuasiParabolic ID="3" StartDistance="6537.167" EndDistance="6561.0" A="1.01043429E11" B="-3.0976174E7" C="2374.0693" Error="0.0466"/>
<QuasiParabolic ID="4" StartDistance="6561.0" EndDistance="6564.0" A="-7.7130701E11" B="2.34943792E8" C="-17891.13" Error="0.00614"/>
<QuasiParabolic ID="5" StartDistance="6564.0" EndDistance="6569.0" A="9.6503637E12" B="-2.94045875E9" C="223989.02" Error="0.0537"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6574.0" A="8.2852289E12" B="-2.52482918E9" C="192353.34" Error="0.00869"/>
<QuasiParabolic ID="7" StartDistance="6574.0" EndDistance="6596.0" A="2.77351435E13" B="-8.4420531E9" C="642400.8" Error="0.0403"/>
<QuasiParabolic ID="8" StartDistance="6596.0" EndDistance="6608.189" A="-5.7872373E13" B="1.751535E10" C="-1325261.6" Error="0.0113"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="85.75" Depth="0.154"/>
<TopsideChapman PeakHeight="238.189" PeakDensity="179156.33" PeakScaleHeight="12.48" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
