<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-08 -128 06:45:00.000"
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: 75% PACIFIC flags: Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.08 (128) 06:45:00</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">
FF202612805080645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.457" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.852" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="257.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="257.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.675" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.277" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="269.450" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.788" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.480" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.228" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.816" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.974" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="32.970" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.770" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.075 2.1 2.125 2.15 2.175 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
257.500 257.500 260.000 260.000 262.500 263.333 264.167 265.000 267.500 270.000 270.000 271.667 273.333 275.000 275.000 277.500 280.000 282.500 282.500 282.500 285.000 286.988 289.300 292.023 295.277 299.234 304.149 310.418 318.691 330.109 346.889 373.966
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 54 0 69 0 0 0 54 42 39 45 0 0 0 60 60 57 60 63 57 63 66 63 66 66 63 60 60 48 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 -10.9375 -10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="457">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.41667 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.83333 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.25 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 269.45 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0
</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 0.35362422 0.35306162 0.35242635 0.351496 0.35034946 0.34906474 0.34757262 0.34580722 0.34384936 0.34170708 0.3393199 0.33670086 0.33386406 0.33075932 0.32740733 0.32383022 0.31999075 0.3158602 0.31147584 0.30682194 0.3017886 0.29647052 0.29077086 0.28478742 0.2783704 0.27152064 0.2642219 0.2564137 0.24812241 0.23924045 0.22962193 0.21941046 0.20837834 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 0.2 0.2 0.20074576 0.20522034 0.20969492 0.21416949 0.21864407 0.22311865 0.22759321 0.2320678 0.23654237 0.24101695 0.24549152 0.2499661 0.25444067 0.25891525 0.26338983 0.2678644 0.272339 0.27681357 0.28128815 0.2857627 0.29023728 0.29471186 0.29918644 0.30366102 0.3081356 0.31261018 0.31708476 0.3215593 0.3260339 0.33050847 0.33498305 0.33945763 0.3439322 0.3484068 0.35288134 0.354 0.37137195 0.39709014 0.4257416 0.45716566 0.49108508 0.5271513 0.56505847 0.60455227 0.6454621 0.68771213 0.7312641 0.7761534 0.8224333 0.8701787 0.919496 0.9704937 1.0232917 1.0780002 1.1347271 1.193577 1.2546035 1.3178731 1.3833443 1.4509524 1.5205249 1.5918409 1.6645244 1.7381283 1.8121163 1.8858684 1.9587785 2.0302138 2.0996385 2.1665614 2.2306025 2.2914875 2.3490467 2.4031506 2.4537907 2.5009649 2.5447328 2.5851643 2.6223502 2.6563852 2.687376 2.7154064 2.740581 2.7629805 2.7826772 2.7997463 2.8142498 2.8262355 2.8357506 2.8428266 2.8474903 2.8497584 2.85 2.8497674 2.8481746 2.845115 2.8406415 2.8348064 2.8276622 2.8192618 2.8096573 2.7989013 2.787045 2.77414 2.7602365 2.7453842 2.7296324 2.7130284 2.6956198 2.6774526 2.658571 2.6390195 2.6188402 2.598075 2.5767639 2.5549457 2.5326583 2.5099385 2.4868214 2.463341 2.4395304 2.4154208 2.3910432 2.3664262 2.3415983 2.3165863 2.2914157 2.2661116 2.2406971 2.2151952 2.189627 2.1640131 2.138373 2.1127248 2.0870867 2.061475 2.0359056 2.0103936 1.984953 1.9595972 1.9343387 1.9091895 1.8841608 1.8592628 1.8345057 1.8098984 1.7854495 1.7611673 1.7370589 1.7131314 1.6893913 1.6658443 1.642496 1.6193514 1.596415 1.5736911 1.5511835 1.5288955 1.5068301 1.4849902 1.4633783 1.4419963 1.4208461 1.3999293 1.3792472 1.3588008 1.3385909 1.3186182 1.298883 1.2793854 1.2601258 1.2411036 1.2223188 1.2037708 1.1854588 1.1673822 1.1495403 1.1319319 1.1145557 1.0974109 1.0804958 1.0638093 1.0473496 1.0311153 1.0151048 0.9993163 0.983748 0.9683982 0.95326495 0.93834627 0.92364025 0.9091449 0.89485806 0.8807778 0.86690193 0.85322833 0.8397549 0.8264794 0.8133997 0.8005135 0.7878187 0.775313 0.76299435 0.7508603 0.7389087 0.7271374 0.71554404 0.7041264 0.6928824 0.6818097 0.6709061 0.6601695 0.6495975 0.6391881 0.6289391 0.61884826 0.6089135 0.59913266 0.5895037 0.5800244 0.5706928 0.5615067 0.5524641 0.54356307 0.5348015 0.52617735 0.51768875 0.50933367 0.50111026 0.49301648 0.4850505 0.47721046 0.4694945 0.46190077 0.45442745 0.44707274 0.4398349 0.43271217 0.42570278 0.41880506 0.41201735 0.4053379 0.39876515 0.39229742 0.3859331 0.37967065 0.37350848 0.36744508 0.3614789 0.35560843 0.3498322 0.34414876 0.33855668 0.3330545 0.32764086 0.32231435 0.3170736 0.31191733 0.30684415 0.3018528 0.29694197 0.29211038 0.28735682 0.28268003 0.2780788 0.27355197 0.2690983 0.26471668 0.260406 0.25616503 0.25199273 0.24788801 0.24384978 0.23987699 0.23596859 0.23212354 0.22834085 0.22461951 0.22095855 0.21735698 0.21381389 0.2103283 0.20689932 0.20352602 0.20020752 0.19694293 0.19373138 0.19057202 0.18746403 0.18440656 0.18139882 0.17843997 0.17552927 0.17266591 0.16984913 0.16707818 0.16435233 0.16167083 0.15903299 0.15643808 0.15388544 0.15137434 0.14890414 0.14647418 0.1440838 0.14173235 0.1394192 0.13714375 0.13490537 0.13270345 0.13053744 0.1284067 0.1263107 0.12424888 0.12222065 0.1202255 0.118262865 0.11633223 0.11443308 0.1125649 0.110727176 0.10891943 0.10714116 0.1053919 0.10367116 0.101978496 0.10031344 0.09867555 0.097064376 0.09547949 0.093920454 0.092386864 0.09087829 0.08939433 0.08793459 0.08649867 0.08508618 0.08369674 0.08232997 0.08098552 0.079663 0.07836207 0.07708237 0.07582356 0.074585296 0.073367245 0.07216907 0.07099046 0.06983109 0.06869064 0.067568816 0.066465296 0.0653798 0.06431202 0.06326167 0.062228475 0.061212145 0.06021241 0.059228998 0.05826164 0.05731008 0.05637405 0.05545331 0.054547604 0.053656682 0.05278031 0.05191825 0.051070265 0.05023613

</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="2.85" PeakHeight="269.45" Num="5" zHalfNm="244.788" Error="1.23">
-59.244 5.454 -3.553 1.742 -0.599
</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="6514.417" A="-1.28301556E11" B="3.9599244E7" C="-3055.372" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6514.417" EndDistance="6548.833" A="0.0" B="-684.82465" C="0.14515467" Error="0.0146"/>
<QuasiParabolic ID="3" StartDistance="6548.833" EndDistance="6576.0" A="5.0638778E10" B="-1.5532839E7" C="1191.146" Error="0.0146"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6581.0" A="-2.71912042E11" B="8.256656E7" C="-6267.7495" Error="0.0159"/>
<QuasiParabolic ID="5" StartDistance="6581.0" EndDistance="6595.0" A="4.47648E12" B="-1.36049434E9" C="103370.67" Error="0.0268"/>
<QuasiParabolic ID="6" StartDistance="6595.0" EndDistance="6598.0" A="7.1809966E12" B="-2.18066637E9" C="165552.02" Error="0.00392"/>
<QuasiParabolic ID="7" StartDistance="6598.0" EndDistance="6609.0" A="1.12038259E13" B="-3.40007475E9" C="257959.45" Error="0.0158"/>
<QuasiParabolic ID="8" StartDistance="6609.0" EndDistance="6617.0" A="1.07447698E13" B="-3.26115661E9" C="247449.67" Error="0.0127"/>
<QuasiParabolic ID="9" StartDistance="6617.0" EndDistance="6639.45" A="-1.3239352E13" B="3.98808704E9" C="-300324.5" Error="0.00609"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="103.25" Depth="0.154"/>
<TopsideChapman PeakHeight="269.45" PeakDensity="100775.44" PeakScaleHeight="18.974" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
