<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 06:30:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 85% PACIFIC flags: 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" >
2026.04.13 (103) 06:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610304130630001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.533" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.306" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.500" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.500" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="288.101" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.500" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="259.265" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="237.604" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.190" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.015" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.901" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.584" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.940" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.470" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
247.500 247.500 249.375 251.250 253.125 255.000 255.000 257.500 257.500 260.000 262.500 265.000 265.000 267.500 270.000 271.811 273.813 276.036 278.521 281.316 284.483 288.101 292.275 297.143 302.894 309.792 318.219 328.745 342.268
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 0 0 0 69 75 72 69 63 0 66 75 48 48 57 0 0 0 66 0 0 81 0 0 0 78 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-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 10.9375 1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="418">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.08333 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.16667 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.25 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 259.265 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0
</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 0.3521277 0.3511249 0.34983355 0.34833378 0.34655926 0.3445913 0.34229675 0.3398302 0.33706498 0.33401984 0.33071515 0.327109 0.32322994 0.31904808 0.31454307 0.3097052 0.30453598 0.29904887 0.29310012 0.2867813 0.2800439 0.2727352 0.26502842 0.25670934 0.24776544 0.23820302 0.22786881 0.21668318 0.20459439 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 0.204 0.2088 0.2136 0.2184 0.2232 0.228 0.2328 0.2376 0.2424 0.2472 0.252 0.2568 0.2616 0.2664 0.2712 0.276 0.2808 0.2856 0.2904 0.2952 0.3 0.3048 0.3096 0.3144 0.3192 0.324 0.3288 0.3336 0.3384 0.3432 0.348 0.3528 0.354 0.37450817 0.40470925 0.43804237 0.47423363 0.5129297 0.55380815 0.59660846 0.6411596 0.6873496 0.73515004 0.7845892 0.8357088 0.8886146 0.9433872 1.0001503 1.0590353 1.12015 1.183622 1.2495567 1.3180525 1.389154 1.462902 1.5392393 1.6180757 1.6992285 1.7824012 1.8672156 1.9531585 2.0396664 2.1260684 2.2117062 2.2958536 2.3778718 2.457192 2.5332906 2.6057644 2.6743133 2.7387407 2.7988756 2.8546777 2.906105 2.9531832 2.9959438 3.034441 3.0687573 3.0989485 3.1250873 3.1472356 3.165454 3.179792 3.190288 3.1969733 3.1998672 3.2 3.1993918 3.1966548 3.1917958 3.1849031 3.1760652 3.1653705 3.1529071 3.138763 3.1230245 3.1057775 3.087106 3.0670931 3.0458195 3.0233643 2.9998047 2.9752157 2.9496703 2.923239 2.8959901 2.8679898 2.8393013 2.8099864 2.7801032 2.749709 2.7188573 2.6876001 2.6559873 2.6240656 2.59188 2.559474 2.5268877 2.49416 2.4613273 2.4284246 2.3954847 2.3625383 2.3296146 2.296741 2.2639437 2.2312462 2.198672 2.1662416 2.1339755 2.1018915 2.0700068 2.038338 2.0068989 1.975704 1.9447651 1.9140942 1.8837017 1.8535973 1.8237895 1.7942865 1.7650952 1.7362221 1.707673 1.6794525 1.6515654 1.6240152 1.5968052 1.5699381 1.5434159 1.5172405 1.4914131 1.4659346 1.4408054 1.4160258 1.3915952 1.3675134 1.3437793 1.320392 1.2973499 1.2746516 1.2522953 1.2302787 1.2085997 1.187256 1.166245 1.145564 1.12521 1.1051804 1.0854717 1.0660812 1.0470052 1.0282407 1.0097841 0.9916319 0.9737808 0.95622706 0.93896705 0.9219972 0.90531373 0.88891304 0.8727913 0.8569448 0.84136987 0.8260627 0.8110195 0.7962365 0.7817101 0.76743644 0.7534119 0.73963267 0.7260951 0.71279556 0.69973034 0.6868959 0.67428863 0.6619049 0.64974123 0.63779414 0.62606007 0.6145357 0.6032176 0.59210235 0.5811866 0.5704672 0.55994076 0.54960406 0.53945404 0.5294875 0.5197013 0.51009244 0.5006579 0.49139467 0.48229983 0.4733705 0.46460378 0.45599693 0.4475471 0.4392516 0.4311077 0.4231128 0.41526425 0.40755948 0.39999595 0.39257118 0.38528273 0.3781281 0.37110502 0.36421108 0.357444 0.35080147 0.34428132 0.33788133 0.33159935 0.32543322 0.3193809 0.31344035 0.3076095 0.30188638 0.29626906 0.2907556 0.28534412 0.28003278 0.27481976 0.26970327 0.26468152 0.2597528 0.25491548 0.2501678 0.24550812 0.24093488 0.23644647 0.23204136 0.227718 0.22347489 0.21931055 0.21522357 0.2112125 0.20727594 0.20341252 0.19962092 0.19589977 0.19224781 0.18866375 0.18514635 0.18169436 0.17830658 0.17498182 0.17171893 0.16851676 0.16537416 0.16229007 0.15926339 0.15629305 0.15337801 0.15051726 0.14770977 0.14495456 0.14225069 0.13959716 0.13699307 0.13443749 0.13192953 0.12946829 0.12705292 0.12468255 0.12235636 0.12007353 0.11783324 0.11563471 0.11347716 0.111359835 0.10928198 0.10724286 0.10524175 0.10327797 0.10135079 0.09945955 0.097603574 0.09578221 0.09399482 0.09224076 0.090519406 0.08883016 0.08717242 0.0855456 0.08394913 0.08238243 0.08084496 0.07933617 0.07785553 0.0764025 0.074976586 0.07357727 0.07220406 0.07085647 0.06953402 0.06823625 0.06696268 0.065712884 0.06448641 0.06328281 0.062101673 0.060942575 0.059805106 0.05868886 0.057593446 0.05651847 0.055463556 0.054428328 0.053412415 0.052415464 0.051437117 0.050477028

</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="3.2" PeakHeight="259.265" Num="5" zHalfNm="237.604" Error="1.553">
-54.346 2.698 -2.226 1.315 -0.456
</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="6512.083" A="-1.47549225E11" B="4.5539884E7" C="-3513.7546" Error="0.00163"/>
<QuasiParabolic ID="2" StartDistance="6512.083" EndDistance="6544.167" A="0.0" B="-732.1489" C="0.15245552" Error="0.0144"/>
<QuasiParabolic ID="3" StartDistance="6544.167" EndDistance="6571.0" A="5.4591644E10" B="-1.6758238E7" C="1286.103" Error="0.0144"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6575.0" A="-1.2963568E11" B="3.9314604E7" C="-2980.5874" Error="0.00347"/>
<QuasiParabolic ID="5" StartDistance="6575.0" EndDistance="6580.0" A="6.7629566E12" B="-2.05729139E9" C="156457.12" Error="0.0175"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6583.0" A="3.42110057E12" B="-1.04152966E9" C="79271.59" Error="0.00792"/>
<QuasiParabolic ID="7" StartDistance="6583.0" EndDistance="6590.0" A="6.8441206E12" B="-2.08148723E9" C="158259.7" Error="0.0044"/>
<QuasiParabolic ID="8" StartDistance="6590.0" EndDistance="6611.0" A="1.45523925E13" B="-4.4208717E9" C="335754.72" Error="0.0185"/>
<QuasiParabolic ID="9" StartDistance="6611.0" EndDistance="6626.0" A="-2.17906697E13" B="6.5738527E9" C="-495793.03" Error="0.00775"/>
<QuasiParabolic ID="10" StartDistance="6626.0" EndDistance="6629.265" A="-2.33392822E13" B="7.0412877E9" C="-531065.8" Error="4.4E-6"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="96.25" Depth="0.154"/>
<TopsideChapman PeakHeight="259.265" PeakDensity="127047.15" PeakScaleHeight="16.584" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
