<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 01:35:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.02 (122) 01:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205020135001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.924" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.263" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="220.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="253.182" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="222.687" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.064" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.363" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="20.925" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.580" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.090" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="20.650" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.210" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="28">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
220.000 220.000 220.000 221.667 223.333 225.000 225.000 225.000 225.000 227.500 227.500 227.500 230.000 231.250 232.500 233.750 235.000 236.875 238.750 240.625 242.500 245.000 247.406 250.114 253.182 256.690 260.737 265.459
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 69 69 0 0 0 72 78 78 81 81 78 81 0 0 0 0 0 0 0 0 0 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="298">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.66667 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 161.33333 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.687 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0
</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 0.3523882 0.35108605 0.34949994 0.34749252 0.3450799 0.34228173 0.3391207 0.33555436 0.33154994 0.32708573 0.3222145 0.31684378 0.31099588 0.3045735 0.29760364 0.290026 0.28171796 0.27274016 0.2629728 0.2523031 0.24063194 0.22781542 0.21374473 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 0.21 0.216 0.222 0.228 0.234 0.24 0.246 0.252 0.258 0.264 0.27 0.276 0.282 0.288 0.294 0.3 0.306 0.312 0.318 0.324 0.33 0.336 0.342 0.348 0.354 0.4006266 0.45235085 0.5087311 0.5694112 0.6342115 0.70306957 0.77602017 0.8531534 0.9346003 1.0204803 1.1108607 1.205796 1.3051883 1.4088607 1.5164598 1.627474 1.7411549 1.8566372 1.9728173 2.0885174 2.202452 2.3134067 2.4201684 2.5216515 2.6169558 2.7052836 2.7860298 2.8587108 2.9230075 2.9786468 3.0254674 3.063357 3.092241 3.1120834 3.1228573 3.125 3.1247582 3.1208286 3.1123092 3.0994883 3.0826547 3.0620959 3.0380948 3.0109289 2.9808686 2.9481757 2.9131021 2.87589 2.8367705 2.7959633 2.7536767 2.7101073 2.6654403 2.6198497 2.5734973 2.526535 2.479103 2.431332 2.3833425 2.335245 2.287141 2.2391245 2.19128 2.1436846 2.0964086 2.049515 2.0030603 1.9570953 1.9116651 1.8668092 1.822563 1.778957 1.7360172 1.6937662 1.6522231 1.6114035 1.5713199 1.5319825 1.4933988 1.4555737 1.4185104 1.3822103 1.3466725 1.3118953 1.2778751 1.2446071 1.2120858 1.1803042 1.1492546 1.1189287 1.0893172 1.0604104 1.0321981 1.0046697 0.9778139 0.9516195 0.92607486 0.9011681 0.8768872 0.85322005 0.83015454 0.80767834 0.7857792 0.7644449 0.74366325 0.7234221 0.70370936 0.68451315 0.66582155 0.6476229 0.6299056 0.6126582 0.5958695 0.5795284 0.5636239 0.5481454 0.53308225 0.51842415 0.5041609 0.4902825 0.47677925 0.46364155 0.45086 0.43842545 0.4263289 0.41456154 0.40311483 0.39198035 0.38114986 0.3706154 0.36036912 0.3504034 0.34071073 0.33128387 0.32211572 0.3131993 0.30452794 0.296095 0.28789407 0.2799189 0.27216336 0.26462153 0.25728762 0.25015596 0.24322106 0.23647757 0.22992028 0.22354412 0.21734414 0.2113155 0.20545353 0.19975367 0.19421148 0.18882263 0.18358292 0.17848824 0.17353462 0.16871817 0.16403513 0.15948181 0.15505464 0.15075016 0.14656498 0.1424958 0.13853942 0.13469274 0.13095273 0.12731643 0.12378098 0.1203436 0.11700158 0.113752276 0.11059312 0.10752162 0.104535356 0.10163196 0.09880915 0.09606469 0.093396395 0.09080217 0.08827996 0.085827775 0.08344367 0.08112575 0.07887219 0.0766812 0.074551046 0.072480045 0.070466556 0.068508975 0.06660576 0.0647554 0.06295643 0.06120742 0.05950699 0.057853784 0.0562465 0.054683857 0.053164616 0.051687576 0.050251566

</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="3.125" PeakHeight="222.687" Num="5" zHalfNm="208.064" Error="0.562">
-36.395 1.102 -0.687 0.414 -0.121
</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="6505.667" A="-2.30120505E11" B="7.1024848E7" C="-5480.187" Error="0.00139"/>
<QuasiParabolic ID="2" StartDistance="6505.667" EndDistance="6531.333" A="0.0" B="1041.49" C="-0.12007813" Error="0.0154"/>
<QuasiParabolic ID="3" StartDistance="6531.333" EndDistance="6556.0" A="5.1290943E10" B="-1.58184E7" C="1219.5977" Error="0.0154"/>
<QuasiParabolic ID="4" StartDistance="6556.0" EndDistance="6559.0" A="1.46597762E13" B="-4.4723425E9" C="341100.9" Error="0.00174"/>
<QuasiParabolic ID="5" StartDistance="6559.0" EndDistance="6561.0" A="8.0112528E12" B="-2.44504448E9" C="186557.7" Error="0.00556"/>
<QuasiParabolic ID="6" StartDistance="6561.0" EndDistance="6565.0" A="1.43354516E13" B="-4.3728599E9" C="333472.47" Error="0.00268"/>
<QuasiParabolic ID="7" StartDistance="6565.0" EndDistance="6580.0" A="2.62136366E13" B="-7.9914998E9" C="609073.4" Error="0.0141"/>
<QuasiParabolic ID="8" StartDistance="6580.0" EndDistance="6587.0" A="-3.13374508E13" B="9.5012321E9" C="-720161.56" Error="0.00345"/>
<QuasiParabolic ID="9" StartDistance="6587.0" EndDistance="6592.687" A="-5.2332264E13" B="1.58758523E10" C="-1204040.5" Error="4.77E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="77.0" Depth="0.154"/>
<TopsideChapman PeakHeight="222.687" PeakDensity="121161.6" PeakScaleHeight="11.09" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
