<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-05 -095 01:10:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: Multiple candidates for F2x cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.05 (095) 01:10:00</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">
FF202609504050110001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="28" >
<URSI ID="00" Val="5.025" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.837" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="19.283" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.400" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="4.325" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="100.000" Name="h`Es" 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="4.875" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.701" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="235.946" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="220.157" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.200" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.400" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="94" Val="22.866" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.584" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.813" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.020" Name="B1" QL="/" DL="/" />
<URSI ID="32" Val="3.250" Name="fbEs" Units="MHz" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="72">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 235.000 235.000 235.000 237.500 237.500 237.500 240.000 240.000 240.000 240.000 240.000 242.500 242.500 242.500 245.000 245.000 245.000 245.000 245.000 247.500 247.500 248.125 248.750 249.375 250.000 252.500 253.750 255.000 254.375 253.750 253.125 252.500 253.750 255.000 255.000 255.322 255.685 256.100 256.578 257.133 257.787 258.569 259.520 260.701 262.209 264.199 266.948 270.992 277.526 289.875
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 93 96 96 96 99 99 96 96 96 96 87 87 84 84 84 81 75 72 0 0 60 57 75 75 93 93 105 102 93 96 93 90 102 102 102 96 99 102 87 87 102 96 0 0 0 69 48 0 72 0 0 0 93 0 96 93 93 99 87 84 99 105 105 99 60 69 66 63 90 99 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 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 -10.9375
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="78">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
102.500 105.000 105.000 105.000 105.000 105.000 102.500 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 101.250 102.500 105.833 109.167 112.500 105.000 105.000 105.000 104.167 103.333 102.500 102.500 100.000 100.000 102.500 102.500 102.500 102.500 102.500 102.500 102.500 105.000 105.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 69 0 69 69 66 0 75 66 66 75 75 75 72 69 66 66 60 63 57 0 66 72 72 72 99 102 99 0 0 90 0 99 102 96 0 0 87 0 99 99 0 96 102 0 78 78 84 90 87 0 0 0 69 63 60 60 0 0 84 90 96 96 0 0 90 93 108 111 96 105 0 0 99 87 111 102 90
</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 -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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="341">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 235.946 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0
</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 0.35339895 0.35261247 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.39287096 0.4452365 0.49991015 0.5580653 0.62056804 0.6881776 0.7615322 0.8411762 0.9275678 1.0210379 1.1217083 1.2295854 1.3444856 1.4660304 1.593757 1.7270832 1.8653686 2.0079079 2.1540759 2.3031943 2.454618 2.6077757 2.7620242 2.9168234 3.0715847 3.2257452 3.3786666 3.5297446 3.678321 3.8236823 3.965085 4.1017146 4.232707 4.357156 4.4740405 4.5823727 4.681129 4.7692585 4.8457594 4.909671 4.9601693 4.9965377 5.018249 5.025 5.0249896 5.0211663 5.0107074 4.993995 4.971413 4.943346 4.9101734 4.8722696 4.8300004 4.7837224 4.7337813 4.680511 4.6242313 4.56525 4.503859 4.440337 4.374949 4.3079433 4.2395563 4.1700077 4.0995054 4.028243 3.9564004 3.884146 3.811635 3.7390113 3.6664073 3.5939453 3.521737 3.4498847 3.3784811 3.3076112 3.2373514 3.1677704 3.0989301 3.0308855 2.9636855 2.8973734 2.8319867 2.767558 2.7041159 2.6416836 2.580281 2.5199246 2.4606268 2.4023974 2.3452432 2.2891684 2.234175 2.1802626 2.1274288 2.0756695 2.0249794 1.975351 1.9267759 1.8792448 1.8327469 1.7872704 1.7428031 1.6993319 1.6568431 1.6153224 1.5747548 1.5351256 1.4964191 1.4586196 1.4217113 1.3856779 1.3505034 1.3161715 1.2826658 1.2499702 1.2180681 1.1869437 1.1565804 1.1269627 1.0980743 1.0698998 1.0424232 1.0156296 0.98950344 0.96402985 0.939194 0.9149813 0.8913774 0.86836815 0.8459397 0.8240784 0.8027708 0.78200376 0.7617644 0.74204 0.7228181 0.70408654 0.68583345 0.66804713 0.6507161 0.6338292 0.61737543 0.60134405 0.58572465 0.57050693 0.55568093 0.5412367 0.5271648 0.51345587 0.50010073 0.48709047 0.47441638 0.46206993 0.4500428 0.43832693 0.4269144 0.4157974 0.40496853 0.39442033 0.38414565 0.3741375 0.36438906 0.35489365 0.34564477 0.33663613 0.32786152 0.31931493 0.31099048 0.30288243 0.29498523 0.28729343 0.27980173 0.27250493 0.26539803 0.2584761 0.25173438 0.24516816 0.23877294 0.23254426 0.22647782 0.22056939 0.2148149 0.20921034 0.20375182 0.19843554 0.19325784 0.18821508 0.18330377 0.1785205 0.17386194 0.16932485 0.16490604 0.16060247 0.15641113 0.15232909 0.14835352 0.14448163 0.14071074 0.13703822 0.13346149 0.12997808 0.12658553 0.123281494 0.12006366 0.116929784 0.11387768 0.1109052 0.10801029 0.10519092 0.10244512 0.09977097 0.097166605 0.094630204 0.09216 0.08975426 0.08741131 0.08512949 0.08290724 0.080742985 0.078635216 0.076582454 0.07458328 0.07263628 0.070740096 0.06889341 0.06709492 0.06534338 0.06363756 0.061976265 0.060358334 0.058782637 0.057248067 0.055753555 0.05429806 0.052880555 0.051500052 0.050155587

</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="5.025" PeakHeight="235.946" Num="5" zHalfNm="220.157" Error="0.48">
-43.609 -0.459 0.519 -0.382 0.235
</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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="2650.8984" C="-0.3673522" Error="0.0424"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6561.0" A="9.0418176E9" B="-2892722.0" C="230.96812" Error="0.0424"/>
<QuasiParabolic ID="4" StartDistance="6561.0" EndDistance="6564.0" A="1.45265284E13" B="-4.4282808E9" C="337480.5" Error="0.0396"/>
<QuasiParabolic ID="5" StartDistance="6564.0" EndDistance="6565.0" A="-8.7803986E11" B="2.65371632E8" C="-20049.414" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6565.0" EndDistance="6573.0" A="1.88830125E13" B="-5.754751E9" C="438451.94" Error="0.0562"/>
<QuasiParabolic ID="7" StartDistance="6573.0" EndDistance="6596.0" A="4.4919599E13" B="-1.36770345E10" C="1041090.25" Error="0.0548"/>
<QuasiParabolic ID="8" StartDistance="6596.0" EndDistance="6605.946" A="-1.24376163E14" B="3.7655822E10" C="-2850120.8" Error="0.0113"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="235.946" PeakDensity="313283.2" PeakScaleHeight="11.813" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
