<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 21:55:00.000"
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="20.0">
<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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.14 (104) 21:55:00</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">
FF202610404142155001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.049" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.727" 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="51" Val="5.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="187.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="187.500" 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="4.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="236.002" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.519" 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="204.147" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="184.699" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.638" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.608" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.651" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.833" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.370" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
187.500 187.500 187.500 187.500 187.500 187.500 187.500 187.500 187.500 187.500 187.500 190.000 190.000 190.000 190.000 190.000 190.000 190.000 190.000 190.000 190.000 190.000 190.000 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 212.500 215.000 215.000 217.500 217.500 217.500 220.000 220.000 222.500 222.500 225.000 227.500 227.500 230.000 232.500 234.055 236.002 238.508 241.856 246.555 253.632 265.499 289.511
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 0 42 42 0 54 54 57 57 69 69 69 69 57 57 60 60 60 60 60 54 57 57 36 36 33 30 0 30 45 45 72 69 66 69 72 72 72 72 72 72 69 69 96 96 87 87 72 72 69 72 75 75 72 72 69 72 57 60 57 54 42 39 66 66 93 93 93 90 93 93 81 78 105 102 81 72 69 72 72 72 84 84 84 78 84 81 57 57 45 45 54 51 75 72 81
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="356">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.521 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 128.08333 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.16667 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.25 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.147 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22510684 0.27223846 0.31107357 0.34344152 0.37098503 0.39477637 0.41552454 0.4336978 0.4496399 0.4635911 0.4757304 0.48619917 0.49510008 0.50251484 0.5085066 0.5131218 0.5163953 0.51834977 0.519 0.51865894 0.5176385 0.51595145 0.5135003 0.51038563 0.50659937 0.5020389 0.4967465 0.4906346 0.4837475 0.47608694 0.4675058 0.45795697 0.44749016 0.4359207 0.42318198 0.4092049 0.39378098 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.392 0.39785254 0.40487558 0.4118986 0.41892165 0.4259447 0.43296775 0.4399908 0.44701383 0.45403686 0.4610599 0.46808293 0.475106 0.48212904 0.48915207 0.4961751 0.50319815 0.5102212 0.5172442 0.519 0.56747746 0.63192874 0.6983114 0.76815903 0.84281117 0.92352086 1.0116581 1.1087236 1.2164342 1.3366047 1.4711291 1.6216377 1.7889774 1.9723954 2.168904 2.373304 2.5791438 2.7803078 2.9722476 3.1522608 3.3192294 3.4729865 3.6138945 3.7426894 3.8600867 3.9668822 4.0637484 4.151358 4.2302504 4.300941 4.363848 4.419349 4.4677496 4.5093174 4.544268 4.5727935 4.5950217 4.611076 4.6210313 4.6249347 4.625 4.623524 4.6181364 4.6089683 4.596199 4.5800066 4.5605693 4.5380654 4.51267 4.4845557 4.453892 4.4208465 4.385581 4.348253 4.3090158 4.2680187 4.2254047 4.1813126 4.1358747 4.0892196 4.0414686 3.9927394 3.9431436 3.892787 3.8417714 3.7901921 3.7381408 3.685703 3.6329603 3.5799894 3.5268621 3.4736466 3.4204063 3.3672009 3.314086 3.2611132 3.2083313 3.1557853 3.1035163 3.0515635 2.999962 2.948745 2.897942 2.8475811 2.7976868 2.7482822 2.699388 2.6510227 2.603203 2.5559437 2.509258 2.4631574 2.417652 2.37275 2.328459 2.2847853 2.241733 2.1993067 2.1575086 2.1163409 2.0758042 2.035899 1.9966242 1.9579788 1.9199609 1.8825676 1.8457961 1.8096426 1.774103 1.7391729 1.7048475 1.6711211 1.6379886 1.605444 1.573481 1.5420935 1.5112748 1.4810182 1.4513168 1.4221636 1.3935515 1.3654729 1.3379208 1.3108877 1.284366 1.2583482 1.2328268 1.2077943 1.183243 1.1591654 1.1355538 1.1124009 1.0896989 1.0674405 1.0456182 1.0242246 1.0032523 0.9826941 0.9625428 0.94279104 0.92343193 0.90445834 0.8858634 0.86764026 0.84978205 0.8322821 0.81513387 0.7983307 0.78186625 0.76573414 0.74992806 0.73444194 0.7192696 0.704405 0.6898424 0.6755759 0.6615998 0.6479085 0.6344964 0.6213581 0.60848826 0.5958815 0.58353287 0.5714371 0.55958927 0.5479844 0.53661776 0.52548456 0.5145802 0.50390005 0.4934396 0.48319453 0.4731605 0.46333322 0.45370856 0.4442824 0.43505082 0.42600977 0.41715547 0.40848413 0.399992 0.39167544 0.3835309 0.37555492 0.36774397 0.36009476 0.3526039 0.34526828 0.3380846 0.33104986 0.3241609 0.31741482 0.31080863 0.3043395 0.2980046 0.29180112 0.28572646 0.27977788 0.27395284 0.26824874 0.26266316 0.25719357 0.25183764 0.24659301 0.24145737 0.23642848 0.23150414 0.22668217 0.22196046 0.21733694 0.21280958 0.20837638 0.20403539 0.19978471 0.19562247 0.19154683 0.187556 0.18364821 0.17982176 0.17607495 0.17240612 0.16881366 0.16529599 0.16185156 0.15847883 0.15517631 0.15194257 0.14877617 0.1456757 0.1426398 0.13966712 0.13675636 0.13390622 0.13111544 0.12838279 0.12570706 0.12308708 0.120521665 0.118009694 0.115550056 0.11314166 0.11078344 0.10847436 0.10621338 0.10399951 0.10183177 0.0997092 0.09763086 0.09559582 0.09360319 0.09165208 0.08974163 0.08787099 0.086039335 0.08424585 0.082489744 0.08077023 0.07908656 0.07743797 0.07582374 0.07424316 0.072695516 0.07118013 0.06969632 0.068243444 0.06682085 0.06542791 0.064063996 0.06272851 0.06142086 0.060140472 0.058886766 0.057659198 0.05645721 0.055280283 0.054127883 0.052999508 0.051894654 0.050812826

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.519" PeakHeight="110.0" Num="3" Error="0.0">
-22.604 4.56 -0.435
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.519" EndFrequency="4.625" PeakHeight="204.147" Num="5" zHalfNm="184.699" Error="0.273">
-44.682 7.853 -4.223 1.162 -0.007
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.004" EndDistance="6480.001" A="-1.18044308E12" B="3.64334272E8" C="-28111.943" Error="0.0141"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6498.083" A="-6.2704275E11" B="1.93531712E8" C="-14932.733" Error="3.54E-4"/>
<QuasiParabolic ID="2" StartDistance="6498.083" EndDistance="6516.167" A="0.0" B="3929.2542" C="-0.4509605" Error="0.0106"/>
<QuasiParabolic ID="3" StartDistance="6516.167" EndDistance="6518.0" A="-8.022482E12" B="2.46156058E9" C="-188821.72" Error="0.0366"/>
<QuasiParabolic ID="4" StartDistance="6518.0" EndDistance="6531.0" A="5.5412143E11" B="-1.70106576E8" C="13055.179" Error="0.0393"/>
<QuasiParabolic ID="5" StartDistance="6531.0" EndDistance="6533.0" A="-3.44378022E12" B="1.05417811E9" C="-80673.555" Error="0.00276"/>
<QuasiParabolic ID="6" StartDistance="6533.0" EndDistance="6537.0" A="2.5000344E13" B="-7.6536515E9" C="585776.0" Error="0.0283"/>
<QuasiParabolic ID="7" StartDistance="6537.0" EndDistance="6539.0" A="1.70768702E12" B="-5.27245408E8" C="40693.676" Error="0.0149"/>
<QuasiParabolic ID="8" StartDistance="6539.0" EndDistance="6543.0" A="3.34618071E13" B="-1.02394706E10" C="783332.1" Error="0.00674"/>
<QuasiParabolic ID="9" StartDistance="6543.0" EndDistance="6553.0" A="8.6243916E13" B="-2.63733883E10" C="2016246.5" Error="0.0201"/>
<QuasiParabolic ID="10" StartDistance="6553.0" EndDistance="6574.147" A="-5.2379232E13" B="1.59349135E10" C="-1211916.4" Error="0.00733"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="54.25" Depth="0.127"/>
<TopsideChapman PeakHeight="204.147" PeakDensity="265392.38" PeakScaleHeight="14.833" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
