<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-31 -304 00:30:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 0% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.31 (304) 00:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202630410310030001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="5.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.743" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.025" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.225" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.225" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="217.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="217.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.491" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.225" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.225" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="244.193" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.645" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.644" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.631" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.215" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.406" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.780" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.720" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="126">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 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 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.000 220.545 221.091 221.636 222.182 222.727 223.273 223.818 224.364 224.909 225.455 226.000 226.545 227.091 227.636 228.182 228.727 229.273 229.818 230.364 230.909 231.455 232.000 232.545 233.091 233.636 234.182 234.727 235.273 235.818 236.364 236.909 237.455 238.000 238.545 239.091 239.636 240.182 240.727 241.273 241.818 242.364 242.909 243.455 244.000 244.545 245.091 245.636 246.182 246.727 247.273 247.818 248.364 248.909 249.455 250.000 250.000 252.500 253.750 255.000 255.000 255.000 255.000 254.643 254.286 253.929 253.571 253.214 252.857 252.500 253.750 255.000 255.156 255.313 255.469 255.625 255.781 260.000 260.000 260.417 260.833 261.250 261.667 262.083 262.500 262.500 262.500 262.500 265.000 266.667 268.333 270.000 271.250 272.500 272.500 272.500 271.250 270.000 270.000 270.000 270.000 270.625 271.082 271.627 272.287 273.103 274.137 275.491 277.340 280.016 284.235 291.871 309.897
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 72 0 60 72 75 75 78 81 78 90 87 72 69 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 90 0 0 0 0 90 0 0 87 0 87 0 75 75 0 63 0 75 75 63 63 0 0 0 0 0 0 99 96 96 0 0 99 0 99 0 0 0 0 0 0 87 0 87 90 0 87 63 0 63 63 0 0 0 0 0 60 99 99 90 87 0 0 87 0 60 0 96 0 96 0 0 93 0 93 0 96 60 0 93 93 0 93 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 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -4.6875 7.8125 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 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="394">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 160.16667 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 244.193 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0
</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 0.353812 0.35324875 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.38864785 0.43175194 0.47437838 0.5180303 0.563577 0.61166143 0.6628146 0.71747434 0.7760471 0.83882594 0.9060606 0.97783655 1.0541406 1.1348649 1.2197323 1.308374 1.4003707 1.4952905 1.5926641 1.6921071 1.793202 1.8956684 1.9992151 2.1036458 2.2087848 2.314497 2.420658 2.5272186 2.6341023 2.7412696 2.8486862 2.9563363 3.0641563 3.1721423 3.280261 3.3884914 3.4967792 3.6050553 3.7132888 3.8213525 3.9291854 4.036609 4.1434865 4.2496014 4.354678 4.458408 4.560388 4.66015 4.757076 4.85048 4.939491 5.023101 5.100177 5.1693873 5.2293344 5.2785907 5.3157945 5.339774 5.349731 5.35 5.3483796 5.3419967 5.3309793 5.315553 5.295944 5.2723775 5.245077 5.2142634 5.180155 5.1429644 5.1029015 5.060169 5.014966 4.9674835 4.9179068 4.8664145 4.8131795 4.7583656 4.7021317 4.6446285 4.5860004 4.5263844 4.465911 4.4047036 4.3428802 4.2805505 4.2178197 4.154785 4.0915403 4.0281715 3.96476 3.9013817 3.8381076 3.7750034 3.7121305 3.6495461 3.5873027 3.5254483 3.4640284 3.4030836 3.3426514 3.2827663 3.2234595 3.164759 3.10669 3.0492759 2.9925368 2.9364905 2.881153 2.8265383 2.772658 2.7195227 2.6671402 2.6155176 2.5646603 2.5145724 2.4652565 2.4167144 2.3689466 2.3219523 2.2757304 2.2302787 2.1855936 2.141672 2.0985088 2.0560992 2.0144377 1.9735179 1.9333333 1.8938768 1.855141 1.8171183 1.7798007 1.7431796 1.7072467 1.6719933 1.6374102 1.6034886 1.5702192 1.5375926 1.5055996 1.4742306 1.4434761 1.4133266 1.3837724 1.3548042 1.3264121 1.2985867 1.2713186 1.2445982 1.218416 1.1927629 1.1676292 1.1430061 1.1188843 1.0952547 1.0721081 1.0494361 1.0272295 1.0054799 0.98417866 0.96331716 0.9428872 0.9228804 0.9032888 0.8841042 0.86531883 0.84692484 0.82891464 0.8112806 0.7940153 0.7771115 0.76056194 0.74435955 0.72849745 0.7129687 0.6977667 0.6828848 0.6683165 0.65405536 0.6400953 0.62643003 0.61305356 0.59996 0.58714354 0.5745985 0.56231916 0.5503002 0.5385361 0.5270216 0.5157516 0.504721 0.49392474 0.483358 0.47301596 0.46289396 0.45298737 0.44329172 0.43380255 0.42451552 0.41542643 0.40653107 0.3978254 0.3893054 0.38096717 0.37280688 0.36482075 0.35700515 0.3493564 0.34187108 0.3345456 0.3273767 0.320361 0.31349522 0.30677623 0.3002009 0.2937662 0.28746912 0.28130674 0.27527618 0.2693747 0.26359946 0.25794783 0.25241718 0.24700493 0.24170853 0.23652554 0.23145352 0.22649013 0.22163303 0.21687998 0.21222872 0.20767711 0.203223 0.19886434 0.19459906 0.19042517 0.18634072 0.18234381 0.17843255 0.17460513 0.17085974 0.16719463 0.16360809 0.16009843 0.15666401 0.15330324 0.15001449 0.14679627 0.14364704 0.14056535 0.13754974 0.13459878 0.13171111 0.12888536 0.12612021 0.12341437 0.12076655 0.11817552 0.11564006 0.11315898 0.11073112 0.10835532 0.106030494 0.103755526 0.10152936 0.099350944 0.09721926 0.0951333 0.093092084 0.09109466 0.08914009 0.087227434 0.08535582 0.083524354 0.08173218 0.07997846 0.07826235 0.07658307 0.07493981 0.07333181 0.0717583 0.070218556 0.06871185 0.06723746 0.065794714 0.06438291 0.06300141 0.061649542 0.06032668 0.059032205 0.057765502 0.056525975 0.055313047 0.054126143 0.052964706 0.051828187 0.050716054

</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="5.35" PeakHeight="244.193" Num="5" zHalfNm="224.645" Error="1.383">
-56.776 -4.894 4.065 -2.142 0.804
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="-4189.0273" C="0.6839751" Error="0.0622"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6552.0" A="1.45859969E11" B="-4.4733644E7" C="3429.8652" Error="0.0622"/>
<QuasiParabolic ID="4" StartDistance="6552.0" EndDistance="6553.0" A="-4.0311288E12" B="1.2302935E9" C="-93870.74" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6553.0" EndDistance="6561.0" A="7.2857713E12" B="-2.22366669E9" C="169669.62" Error="0.0554"/>
<QuasiParabolic ID="6" StartDistance="6561.0" EndDistance="6567.0" A="1.0882106E13" B="-3.31994317E9" C="253214.56" Error="0.0209"/>
<QuasiParabolic ID="7" StartDistance="6567.0" EndDistance="6579.0" A="2.43840015E13" B="-7.4319867E9" C="566298.44" Error="0.00644"/>
<QuasiParabolic ID="8" StartDistance="6579.0" EndDistance="6606.0" A="2.0357455E13" B="-6.2079263E9" C="473270.56" Error="0.0221"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6613.0" A="-1.14168192E14" B="3.4520396E10" C="-2609406.0" Error="0.00415"/>
<QuasiParabolic ID="10" StartDistance="6613.0" EndDistance="6614.193" A="-1.46944521E14" B="4.4433093E10" C="-3358891.5" Error="9.78E-8"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="244.193" PeakDensity="355117.88" PeakScaleHeight="14.406" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
