<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-08 -128 01:40:00.000"
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: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.08 (128) 01:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612805080140001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.934" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.571" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.775" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="197.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="197.500" 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="3.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="242.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="215.573" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="193.939" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.327" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.749" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.032" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.849" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.140" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.320" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="51">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.2 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 198.750 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 203.333 204.167 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 210.000 212.500 213.636 214.773 215.909 217.045 218.182 219.318 220.455 221.591 222.727 223.864 225.000 225.000 227.500 227.500 230.000 232.500 235.000 237.500 240.000 242.500 246.929 252.565 259.979 270.169 285.055 308.854
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 39 0 45 42 0 0 51 51 57 0 57 0 0 57 60 63 60 60 60 57 54 30 30 0 0 0 0 0 0 0 0 0 0 81 87 90 93 90 87 87 87 96 99 96 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 -1.5625 -1.5625 4.6875 -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="382">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 130.41667 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 150.83333 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.573 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0
</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 0.35375172 0.35311857 0.35194156 0.35034353 0.348288 0.34577343 0.34275505 0.3392274 0.3352465 0.33069065 0.32556674 0.31982708 0.31355324 0.30657426 0.2989218 0.29046544 0.28123897 0.27106133 0.2598764 0.24752563 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.24192245 0.24745715 0.25299183 0.25852653 0.2640612 0.26959592 0.2751306 0.2806653 0.2862 0.2917347 0.29726937 0.30280408 0.30833876 0.31387347 0.31940815 0.32494286 0.33047757 0.33601224 0.34154695 0.34708163 0.35261634 0.354 0.37834102 0.4166571 0.46161154 0.512295 0.567386 0.6258423 0.68715316 0.7512645 0.8184487 0.8892006 0.9642045 1.0442752 1.13043 1.2238697 1.3259776 1.4382459 1.5620159 1.6979625 1.84524 2.0002651 2.1567948 2.3077502 2.447743 2.5742025 2.6868844 2.786757 2.875188 2.9535825 3.0231943 3.0851285 3.1402469 3.189317 3.2329364 3.2716022 3.3057432 3.335697 3.3617368 3.3841069 3.4029932 3.4185464 3.4308944 3.44013 3.4463205 3.4495122 3.45 3.4497848 3.447626 3.4432213 3.4366603 3.4280338 3.4174333 3.4049492 3.3906722 3.3746917 3.3570962 3.337973 3.3174083 3.2954855 3.2722874 3.2478943 3.2223845 3.1958337 3.1683164 3.1399038 3.1106656 3.080668 3.049976 3.0186515 2.9867542 2.9543414 2.9214678 2.8881862 2.8545465 2.8205972 2.7863834 2.7519488 2.7173352 2.6825814 2.647725 2.612801 2.5778432 2.542883 2.5079498 2.473072 2.4382758 2.4035861 2.3690262 2.3346176 2.3003807 2.2663343 2.2324963 2.1988828 2.1655092 2.1323898 2.099537 2.066963 2.0346787 2.0026941 1.9710182 1.9396595 1.9086254 1.8779223 1.8475565 1.817533 1.7878566 1.7585313 1.7295605 1.700947 1.6726934 1.6448014 1.6172725 1.5901078 1.5633078 1.5368727 1.5108026 1.4850969 1.459755 1.4347756 1.4101576 1.3858994 1.3619993 1.3384552 1.3152649 1.2924261 1.2699363 1.2477927 1.2259926 1.2045329 1.1834104 1.1626222 1.142165 1.122035 1.1022292 1.082744 1.0635756 1.0447205 1.0261751 1.0079355 0.98999804 0.9723588 0.9550141 0.9379601 0.9211929 0.9047086 0.8885035 0.87257355 0.85691506 0.8415241 0.8263968 0.81152946 0.79691815 0.78255916 0.76844865 0.75458294 0.7409583 0.727571 0.7144174 0.70149386 0.6887968 0.6763226 0.6640678 0.6520288 0.6402022 0.6285846 0.61717254 0.60596275 0.5949518 0.58413655 0.5735136 0.56307995 0.5528323 0.54276764 0.5328828 0.52317476 0.51364064 0.50427735 0.4950821 0.48605195 0.4771841 0.46847573 0.45992413 0.4515266 0.44328046 0.43518308 0.42723188 0.41942433 0.41175792 0.40423015 0.39683864 0.38958097 0.38245478 0.37545776 0.36858767 0.36184222 0.35521922 0.34871653 0.34233198 0.33606347 0.32990894 0.3238664 0.3179338 0.3121092 0.3063907 0.30077633 0.2952643 0.28985274 0.28453985 0.27932385 0.27420303 0.26917565 0.26424003 0.25939453 0.2546375 0.2499674 0.2453826 0.24088159 0.23646285 0.23212488 0.22786625 0.22368549 0.2195812 0.215552 0.21159652 0.20771343 0.20390141 0.20015918 0.19648546 0.192879 0.1893386 0.18586303 0.18245114 0.17910175 0.17581372 0.17258595 0.16941732 0.16630678 0.16325323 0.16025567 0.15731306 0.15442441 0.15158872 0.14880502 0.14607239 0.14338985 0.14075653 0.13817151 0.1356339 0.13314286 0.1306975 0.12829702 0.12594058 0.12362739 0.12135663 0.11912755 0.11693938 0.11479136 0.11268278 0.11061289 0.108581 0.106586404 0.10462843 0.102706395 0.10081964 0.09896753 0.097149424 0.0953647 0.09361274 0.09189295 0.09020474 0.08854753 0.08692075 0.08532384 0.08375626 0.08221747 0.08070694 0.07922414 0.07776858 0.07633975 0.07493717 0.07356034 0.07220881 0.0708821 0.06957975 0.06830133 0.06704639 0.0658145 0.06460524 0.063418195 0.062252954 0.061109114 0.059986293 0.05888409 0.057802144 0.056740068 0.055697504 0.054674093 0.053669486 0.05268333 0.051715296 0.050765045

</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="3.45" PeakHeight="215.573" Num="5" zHalfNm="193.939" Error="1.055">
-50.943 11.205 -6.736 2.999 -0.848
</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="6500.417" A="-2.85866426E11" B="8.8230384E7" C="-6807.7744" Error="0.00128"/>
<QuasiParabolic ID="2" StartDistance="6500.417" EndDistance="6520.833" A="0.0" B="-2985.248" C="0.5173949" Error="0.026"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6540.0" A="1.19775715E11" B="-3.6817932E7" C="2829.4175" Error="0.0281"/>
<QuasiParabolic ID="4" StartDistance="6540.0" EndDistance="6541.0" A="4.7485346E12" B="-1.45234048E9" C="111049.8" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6541.0" EndDistance="6550.0" A="1.03307721E13" B="-3.15918566E9" C="241522.6" Error="0.0283"/>
<QuasiParabolic ID="6" StartDistance="6550.0" EndDistance="6554.0" A="1.83660393E13" B="-5.6127022E9" C="428813.94" Error="0.00152"/>
<QuasiParabolic ID="7" StartDistance="6554.0" EndDistance="6564.0" A="5.1168529E13" B="-1.56226171E10" C="1192463.2" Error="0.0194"/>
<QuasiParabolic ID="8" StartDistance="6564.0" EndDistance="6570.0" A="-6.0967229E13" B="1.85442796E10" C="-1410134.0" Error="0.0134"/>
<QuasiParabolic ID="9" StartDistance="6570.0" EndDistance="6585.573" A="-2.08342614E13" B="6.3272433E9" C="-480374.78" Error="0.00697"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.113"/>
<TopsideChapman PeakHeight="215.573" PeakDensity="147673.7" PeakScaleHeight="16.849" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
