<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-29 -088 01:10:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 20% 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, Unidentified traces above foF2, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.29 (088) 01:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202608803290110001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="9.025" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.773" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="34.049" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.275" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.275" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="8.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.867" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="262.971" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.460" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.488" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="18.356" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.568" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.290" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="191">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.65 4.675 4.7 4.725 4.75 4.775 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 7.7 7.725 7.75 7.775 7.8 7.825 7.85 7.875 7.9 7.925 7.95 7.975 8.0 8.025 8.05 8.075 8.1 8.125 8.15 8.175 8.2 8.225 8.25 8.275 8.3 8.325 8.35 8.375 8.4 8.425 8.45 8.475 8.5 8.525 8.55 8.575 8.6 8.625 8.65 8.675 8.7 8.725 8.75 8.775 8.8 8.825 8.85 8.875 8.9 8.925 8.95 8.975 9.0 9.025
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 250.000 250.000 250.000 250.000 250.000 250.000 248.750 247.500 247.500 250.000 248.750 247.500 247.500 247.500 247.500 247.500 247.500 250.000 252.500 257.500 252.500 255.000 255.000 255.000 258.750 262.500 262.500 262.500 263.750 265.000 262.500 262.500 262.500 263.750 265.000 265.000 265.000 265.625 266.250 266.875 267.500 267.500 267.500 268.750 270.000 272.500 275.000 273.750 272.500 273.750 275.000 275.870 276.739 277.609 278.478 279.348 280.217 281.087 281.957 282.826 283.696 284.565 285.435 286.304 287.174 288.043 288.913 289.783 290.652 291.522 292.391 293.261 294.130 295.000 291.250 287.500 285.000 280.357 275.714 271.071 266.429 261.786 257.143 252.500 258.750 265.000 271.250 277.500 281.250 285.000 285.435 285.870 286.304 286.739 287.174 287.609 288.043 288.478 288.913 289.348 289.783 290.217 290.652 291.087 291.522 291.957 292.391 292.826 293.261 293.696 294.130 294.565 295.000 290.000 288.750 287.500 286.250 285.000 287.000 289.000 291.000 293.000 295.000 296.000 297.000 298.000 299.000 300.000 297.500 292.500 287.500 282.500 277.500 275.000 272.500 270.000 267.500 265.000 265.000 265.278 265.556 265.833 266.111 266.389 266.667 266.944 267.222 267.500 268.333 269.167 270.000 267.500 267.500 271.250 275.000 275.078 275.164 275.260 275.368 275.491 275.631 275.793 275.982 276.205 276.472 276.798 277.206 277.731 278.429 279.405 280.867 283.295 288.123
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 90 102 0 0 69 105 0 0 69 0 0 0 0 63 0 0 99 0 0 0 96 0 99 63 66 0 60 0 0 102 0 63 63 63 0 60 0 0 99 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 57 99 0 90 0 63 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 93 0 0 0 0 93 93 0 0 0 0 0 0 0 0 93 0 0 0 93 96 96 0 96 99 96 63 63 0 0 63 0 60 60 66 63 60 63 96 96 87 0 63 0 60 0 0 87 84 81 90 96 57 54 54 63 0 0 57 0 57
</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 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 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="367">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.08333 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.16667 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.25 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 262.971 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0
</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 0.35354906 0.35298675 0.3521277 0.3511249 0.34983355 0.34833378 0.34655926 0.3445913 0.34229675 0.3398302 0.33706498 0.33401984 0.33071515 0.327109 0.32322994 0.31904808 0.31454307 0.3097052 0.30453598 0.29904887 0.29310012 0.2867813 0.2800439 0.2727352 0.26502842 0.25670934 0.24776544 0.23820302 0.22786881 0.21668318 0.20459439 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 0.204 0.2088 0.2136 0.2184 0.2232 0.228 0.2328 0.2376 0.2424 0.2472 0.252 0.2568 0.2616 0.2664 0.2712 0.276 0.2808 0.2856 0.2904 0.2952 0.3 0.3048 0.3096 0.3144 0.3192 0.324 0.3288 0.3336 0.3384 0.3432 0.348 0.3528 0.354 0.40947053 0.47442946 0.5400565 0.6103911 0.6878946 0.7744479 0.87151176 0.9797505 1.0987978 1.2272406 1.3627934 1.5030342 1.6458443 1.7896307 1.9333754 2.0764556 2.218637 2.3597784 2.4999254 2.6391666 2.7776778 2.9155676 3.0530477 3.1902359 3.3273444 3.4645128 3.6019 3.7396374 3.877929 4.0168824 4.1566696 4.2974396 4.4393325 4.58253 4.7272205 4.873527 5.0216627 5.1718125 5.324209 5.479105 5.636716 5.7973514 5.961354 6.129084 6.300976 6.4775453 6.6594234 6.847338 7.0422564 7.2452626 7.4579806 7.682455 7.921645 8.179873 8.463783 8.780563 9.025 9.024993 9.016838 8.993914 8.957177 8.907588 8.846101 8.77366 8.691186 8.599578 8.4997015 8.392391 8.278446 8.158625 8.033648 7.9041953 7.770907 7.634382 7.49518 7.353823 7.2107935 7.0665374 6.9214673 6.7759604 6.6303625 6.4849896 6.3401275 6.196036 6.052949 5.911076 5.770605 5.6317034 5.494518 5.3591776 5.225796 5.0944705 4.9652843 4.8383074 4.713598 4.591204 4.4711623 4.353502 4.2382426 4.1253963 4.0149693 3.9069617 3.801367 3.6981747 3.5973694 3.4989324 3.4028409 3.3090694 3.2175894 3.1283703 3.0413795 2.9565825 2.8739438 2.7934256 2.7149904 2.6385987 2.5642111 2.4917877 2.4212878 2.352671 2.2858963 2.2209234 2.1577113 2.0962198 2.0364087 1.9782383 1.9216694 1.8666627 1.8131801 1.7611835 1.7106355 1.6614996 1.6137395 1.5673196 1.5222054 1.4783623 1.4357572 1.394357 1.3541296 1.3150437 1.2770684 1.2401736 1.2043301 1.169509 1.1356826 1.1028231 1.0709041 1.0398995 1.0097839 0.98053247 0.9521212 0.9245265 0.8977255 0.8716959 0.84641594 0.8218644 0.79802084 0.7748651 0.7523777 0.7305396 0.7093324 0.68873805 0.6687392 0.6493187 0.6304601 0.61214733 0.5943647 0.57709706 0.56032956 0.54404795 0.5282382 0.5128867 0.49798033 0.48350623 0.469452 0.45580548 0.44255492 0.4296889 0.41719633 0.4050664 0.3932886 0.38185284 0.37074915 0.35996798 0.3494999 0.33933598 0.3294673 0.31988537 0.31058183 0.3015487 0.29277804 0.2842623 0.27599406 0.26796618 0.26017162 0.25260368 0.24525577 0.23812146 0.2311946 0.22446913 0.21793923 0.2115992 0.20544353 0.19946687 0.19366403 0.18802994 0.18255971 0.17724858 0.17209192 0.16708523 0.16222417 0.15750451 0.15292212 0.14847304 0.14415336 0.13995934 0.13588731 0.13193375 0.1280952 0.124368295 0.120749824 0.117236614 0.113825604 0.11051383 0.107298404 0.10417652 0.10114546 0.098202586 0.095345326 0.09257119 0.08987777 0.087262705 0.084723726 0.08225861 0.079865225 0.07754146 0.075285316 0.07309481 0.07096803 0.06890314 0.066898316 0.06495183 0.063061975 0.061227106 0.059445623 0.057715975 0.05603665 0.054406185 0.05282316 0.051286194

</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="9.025" PeakHeight="262.971" Num="5" zHalfNm="251.46" Error="1.809">
-48.276 -17.84 14.254 -6.597 1.738
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="96.25" Depth="0.154"/>
<TopsideChapman PeakHeight="262.971" PeakDensity="1010553.7" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
