<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.21 (052) 06:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.16" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202605202210630001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="7.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.062" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.177" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="235.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="211.863" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="197.509" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.636" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="20.653" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.335" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.901" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.300" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.590" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="116">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875 6.9 6.925 6.95 6.975 7.0 7.025 7.05 7.075 7.1 7.125 7.15 7.175 7.2 7.225 7.25 7.275 7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 205.000 205.000 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 206.250 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 208.750 210.000 210.000 210.000 210.625 211.250 211.875 212.500 210.833 209.167 207.500 210.000 210.000 210.000 210.000 210.000 211.250 212.500 212.708 212.917 213.125 213.333 213.542 213.750 213.958 214.167 214.375 214.583 214.792 215.000 230.000 217.500 218.000 218.500 219.000 219.500 220.000 225.000 222.500 220.000 217.500 218.421 219.342 220.263 221.184 222.105 223.026 223.947 224.868 225.789 226.711 227.632 228.553 229.474 230.395 231.316 232.237 233.158 234.079 235.000 248.750 249.321 250.059 251.047 252.441 254.554 258.136 265.535 289.820
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
102 114 114 78 81 81 81 111 114 102 99 75 78 78 78 78 78 120 117 99 114 114 111 78 78 75 75 72 66 69 66 72 75 69 72 72 66 105 99 69 69 111 114 114 111 114 108 105 108 108 102 63 69 66 60 69 69 111 108 105 105 102 99 99 99 0 99 108 90 102 105 63 66 102 102 105 105 0 102 63 69 69 69 99 96 87 87 90 87 63 60 0 96 102 102 66 66 63 66 96 93 93 93 57 66 102 99 57 63 60 57 51 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 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="313">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 211.863 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0
</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 0.3537932 0.35311493 0.35197127 0.35037374 0.3483392 0.3457767 0.34277558 0.3392647 0.33529535 0.33075 0.32564294 0.31998846 0.3136597 0.3067674 0.2990953 0.29073656 0.2815179 0.271331 0.26021352 0.24793555 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.2387619 0.24452381 0.2502857 0.2560476 0.26180953 0.26757142 0.27333334 0.27909523 0.28485715 0.29061905 0.29638097 0.30214286 0.30790475 0.31366667 0.31942856 0.32519048 0.33095238 0.3367143 0.3424762 0.34823808 0.354 0.4131223 0.48221076 0.5610136 0.6492925 0.7470088 0.8544394 0.9721465 1.1009649 1.2419031 1.3961635 1.5651438 1.7503432 1.9532077 2.175231 2.4175496 2.6808393 2.9649308 3.2685096 3.58883 3.921779 4.2619033 4.603338 4.9399104 5.2662296 5.577838 5.871343 6.1444125 6.395618 6.6241016 6.8296437 7.012166 7.171847 7.3089976 7.423932 7.516964 7.5883617 7.638365 7.667145 7.675 7.674882 7.6670246 7.647387 7.616713 7.5757504 7.5252423 7.4659224 7.3985095 7.3237042 7.242183 7.1546006 7.0615816 6.9637237 6.861594 6.7557306 6.646641 6.5347996 6.4206543 6.304621 6.1870885 6.0684156 5.948935 5.828954 5.7087545 5.588595 5.4687104 5.349316 5.230607 5.1127577 4.9959273 4.8802567 4.7658715 4.6528845 4.541393 4.431483 4.3232284 4.2166944 4.1119337 4.0089917 3.9079053 3.808704 3.7114096 3.6160383 3.5226007 3.431102 3.3415425 3.2539184 3.1682224 3.0844433 3.002567 2.9225771 2.844454 2.768177 2.6937222 2.6210654 2.5501802 2.481039 2.4136138 2.347875 2.283793 2.2213366 2.1604755 2.1011782 2.043413 1.9871482 1.9323524 1.8789937 1.8270409 1.7764622 1.7272266 1.6793033 1.6326615 1.5872709 1.5431015 1.5001242 1.4583097 1.4176294 1.378055 1.3395588 1.3021139 1.2656934 1.2302712 1.1958215 1.1623193 1.1297398 1.098059 1.0672534 1.0372998 1.0081756 0.9798588 0.95232797 0.92556196 0.8995403 0.8742429 0.84965026 0.82574326 0.8025033 0.77991223 0.75795233 0.7366064 0.7158577 0.6956897 0.67608654 0.65703267 0.63851297 0.62051266 0.6030174 0.58601326 0.56948656 0.5534241 0.537813 0.5226407 0.507895 0.49356404 0.47963625 0.46610036 0.45294547 0.44016093 0.42773637 0.41566175 0.40392727 0.39252338 0.38144088 0.3706707 0.36020416 0.35003266 0.34014794 0.330542 0.32120696 0.31213525 0.30331942 0.2947523 0.2864269 0.27833644 0.27047426 0.26283398 0.25540933 0.24819426 0.24118286 0.23436938 0.22774826 0.22131407 0.21506155 0.20898557 0.20308116 0.19734348 0.19176784 0.18634966 0.1810845 0.17596804 0.17099608 0.16616456 0.16146952 0.15690708 0.15247352 0.14816521 0.1439786 0.13991025 0.13595684 0.13211511 0.12838192 0.12475419 0.121228956 0.11780331 0.11447446 0.11123965 0.10809624 0.105041645 0.10207336 0.09918893 0.09638601 0.093662284 0.09101552 0.08844354 0.085944235 0.08351555 0.08115549 0.078862116 0.07663355 0.07446796 0.072363555 0.07031862 0.068331465 0.06640047 0.06452403 0.06270062 0.06092874 0.059206925 0.057533767 0.05590789 0.054327957 0.052792672 0.05130077

</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="7.675" PeakHeight="211.863" Num="5" zHalfNm="197.509" Error="0.676">
-40.642 3.155 -2.169 1.073 -0.28
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6501.0" A="-2.85457187E11" B="8.8104064E7" C="-6798.028" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6501.0" EndDistance="6522.0" A="0.0" B="7888.0996" C="-1.1589875" Error="0.0703"/>
<QuasiParabolic ID="3" StartDistance="6522.0" EndDistance="6542.0" A="-6.4175292E10" B="1.949852E7" C="-1480.8911" Error="0.0703"/>
<QuasiParabolic ID="4" StartDistance="6542.0" EndDistance="6544.0" A="2.02748545E13" B="-6.198487E9" C="473754.94" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6544.0" EndDistance="6548.0" A="2.28689644E13" B="-6.9913078E9" C="534331.06" Error="0.0079"/>
<QuasiParabolic ID="6" StartDistance="6548.0" EndDistance="6550.0" A="3.8862923E13" B="-1.18764513E10" C="907356.7" Error="0.0052"/>
<QuasiParabolic ID="7" StartDistance="6550.0" EndDistance="6556.0" A="7.8608337E13" B="-2.40124559E10" C="1833769.2" Error="0.0377"/>
<QuasiParabolic ID="8" StartDistance="6556.0" EndDistance="6569.0" A="2.24881032E14" B="-6.8634997E10" C="5236952.5" Error="0.0412"/>
<QuasiParabolic ID="9" StartDistance="6569.0" EndDistance="6581.863" A="-2.81745526E14" B="8.5612691E10" C="-6503623.5" Error="0.0146"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="63.0" Depth="0.121"/>
<TopsideChapman PeakHeight="211.863" PeakDensity="730839.0" PeakScaleHeight="10.901" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
