<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-25 -084 07:35:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.25 (084) 07:35:00</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">
FF202608403250735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.649" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.151" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.025" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="276.142" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="245.003" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="217.866" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.902" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="38.458" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.354" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.845" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="32.210" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.830" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
220.000 220.000 220.625 221.250 221.875 222.500 222.500 222.500 222.500 222.500 222.500 222.500 227.500 226.250 225.000 225.000 225.000 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 235.000 237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.625 241.250 241.875 242.500 242.500 242.500 245.000 247.500 250.000 250.000 250.000 250.000 252.500 252.500 255.000 257.500 260.000 260.000 260.000 260.000 262.500 265.000 266.713 268.636 270.811 273.290 276.142 279.459 283.363 288.026 293.693 300.727 309.691 321.507 337.790 361.667
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 54 0 0 0 69 0 0 0 72 66 63 66 0 63 66 0 63 69 75 78 51 51 36 0 0 57 57 60 87 84 93 93 0 93 99 96 96 99 99 99 96 102 102 102 99 99 84 84 90 87 72 69 72 69 69 69 66 63 57 57 0 0 0 87 0 90 0 0 90 0 99 99 87 84 0 78 75 0 78 78 93 102 93 90 66 60 60 60 81 81 60 66 93 90 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="492">
<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 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 245.003 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0
</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 0.3911528 0.42965636 0.46949372 0.5107669 0.55361104 0.59823143 0.6448517 0.6937265 0.74515283 0.7994644 0.85704756 0.91832507 0.9838189 1.054104 1.1298747 1.2118881 1.3010788 1.3984783 1.5051773 1.6223701 1.7510899 1.8919749 2.0448961 2.2084498 2.379664 2.5542486 2.7274516 2.8950713 3.0541482 3.2030725 3.3412623 3.4689343 3.5865633 3.6948895 3.7946093 3.8864524 3.9710894 4.0491014 4.1209884 4.187242 4.2482543 4.304364 4.355895 4.4031143 4.44625 4.485503 4.521061 4.553072 4.5816746 4.606984 4.629097 4.6481037 4.664071 4.6770597 4.6871157 4.694277 4.6985664 4.6999946 4.7 4.6989603 4.695872 4.690799 4.683807 4.67496 4.6643248 4.6519666 4.63795 4.622341 4.605203 4.586601 4.5665975 4.545255 4.522635 4.4987984 4.4738045 4.4477115 4.4205766 4.3924565 4.363405 4.333476 4.3027215 4.2711926 4.2389383 4.2060065 4.1724443 4.1382966 4.103607 4.0684185 4.032771 3.9967055 3.9602597 3.92347 3.8863728 3.849002 3.8113902 3.7735696 3.7355704 3.697422 3.659152 3.6207876 3.5823545 3.543877 3.5053785 3.4668815 3.4284074 3.3899767 3.3516085 3.3133214 3.275133 3.2370594 3.1991167 3.16132 3.1236832 3.0862195 3.0489419 3.0118616 2.9749904 2.9383383 2.9019153 2.8657308 2.829793 2.7941103 2.7586899 2.7235389 2.6886635 2.6540697 2.6197631 2.5857487 2.5520308 2.5186138 2.4855015 2.452697 2.420204 2.3880243 2.3561609 2.3246155 2.29339 2.2624857 2.231904 2.2016459 2.171712 2.1421025 2.1128178 2.083858 2.055223 2.0269122 1.9989252 1.9712614 1.9439198 1.9168994 1.8901992 1.8638177 1.8377535 1.8120053 1.7865711 1.7614496 1.7366387 1.7121365 1.687941 1.66405 1.6404616 1.6171733 1.5941831 1.5714884 1.5490869 1.5269761 1.5051535 1.4836167 1.462363 1.4413898 1.4206946 1.4002745 1.380127 1.3602493 1.3406388 1.3212926 1.3022082 1.2833825 1.264813 1.2464968 1.2284312 1.2106134 1.1930406 1.1757101 1.1586189 1.1417646 1.1251441 1.108755 1.0925943 1.0766592 1.0609472 1.0454555 1.0301814 1.0151223 1.0002755 0.98563826 0.97120804 0.95698225 0.94295824 0.9291335 0.9155054 0.9020715 0.8888292 0.875776 0.86290956 0.8502273 0.83772683 0.8254058 0.8132618 0.8012924 0.78949535 0.77786833 0.76640904 0.7551152 0.7439846 0.733015 0.7222042 0.71155 0.70105034 0.69070303 0.680506 0.6704572 0.6605545 0.65079594 0.6411795 0.6317032 0.62236506 0.61316323 0.6040957 0.5951606 0.58635616 0.5776804 0.5691316 0.560708 0.5524077 0.54422903 0.5361703 0.5282297 0.52040565 0.51269644 0.5051004 0.49761596 0.49024153 0.4829755 0.47581634 0.4687625 0.46181247 0.45496473 0.44821784 0.44157034 0.4350208 0.4285678 0.42220995 0.41594583 0.40977412 0.4036935 0.3977026 0.39180017 0.38598487 0.38025546 0.3746107 0.36904934 0.36357015 0.358172 0.35285363 0.3476139 0.3424517 0.3373658 0.3323552 0.32741874 0.32255533 0.31776392 0.31304345 0.30839288 0.3038112 0.29929733 0.29485035 0.29046926 0.2861531 0.28190088 0.2777117 0.2735846 0.26951867 0.26551306 0.26156682 0.2576791 0.25384903 0.2500758 0.2463585 0.24269636 0.23908857 0.23553428 0.23203276 0.22858319 0.22518481 0.22183688 0.21853864 0.21528937 0.21208832 0.2089348 0.20582812 0.20276755 0.19975244 0.19678208 0.19385585 0.19097309 0.18813314 0.18533537 0.18257916 0.1798639 0.17718898 0.17455378 0.17195775 0.16940029 0.16688083 0.1643988 0.16195366 0.15954486 0.15717185 0.1548341 0.1525311 0.15026233 0.14802729 0.14582546 0.14365636 0.1415195 0.1394144 0.1373406 0.13529763 0.13328503 0.13130236 0.12934914 0.12742499 0.12552942 0.123662055 0.12182245 0.1200102 0.11822489 0.11646613 0.11473352 0.11302667 0.11134521 0.10968875 0.108056925 0.106449366 0.104865715 0.103305615 0.10176872 0.10025468 0.09876315 0.09729381 0.09584632 0.09442036 0.09301561 0.091631755 0.09026848 0.08892548 0.08760246 0.086299114 0.085015155 0.0837503 0.08250425 0.081276745 0.08006749 0.07887623 0.077702686 0.0765466 0.07540771 0.07428577 0.07318051 0.07209169 0.071019076 0.06996241 0.06892147 0.06789601 0.06688581 0.06589063 0.06491026 0.06394448 0.062993065 0.0620558 0.06113248 0.060222898 0.059326846 0.058444127 0.057574537 0.056717888 0.055873983 0.055042632 0.05422365 0.053416852 0.052622054 0.051839087 0.051067766 0.05030792

</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="4.7" PeakHeight="245.003" Num="5" zHalfNm="217.866" Error="0.693">
-66.132 13.752 -8.511 3.425 -0.537
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="13" 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="650.6972" C="-0.06000854" Error="0.00954"/>
<QuasiParabolic ID="3" StartDistance="6531.333" EndDistance="6554.0" A="5.5661158E10" B="-1.7153276E7" C="1321.5314" Error="0.00954"/>
<QuasiParabolic ID="4" StartDistance="6554.0" EndDistance="6556.0" A="2.01260401E11" B="-6.1583928E7" C="4711.1143" Error="3.56E-4"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6559.0" A="1.03608715E13" B="-3.16091622E9" C="241084.84" Error="0.00486"/>
<QuasiParabolic ID="6" StartDistance="6559.0" EndDistance="6560.0" A="-2.65526863E12" B="8.0802426E8" C="-61471.99" Error="3.94E-11"/>
<QuasiParabolic ID="7" StartDistance="6560.0" EndDistance="6567.0" A="6.5724634E12" B="-2.00530867E9" C="152958.88" Error="0.00752"/>
<QuasiParabolic ID="8" StartDistance="6567.0" EndDistance="6572.0" A="1.59092195E13" B="-4.8488463E9" C="369460.9" Error="0.00291"/>
<QuasiParabolic ID="9" StartDistance="6572.0" EndDistance="6577.0" A="3.8644228E13" B="-1.1767596E10" C="895841.7" Error="0.00866"/>
<QuasiParabolic ID="10" StartDistance="6577.0" EndDistance="6584.0" A="8.3254435E13" B="-2.53331128E10" C="1927126.4" Error="0.00566"/>
<QuasiParabolic ID="11" StartDistance="6584.0" EndDistance="6605.0" A="-3.24533936E13" B="9.8150728E9" C="-742085.8" Error="0.00656"/>
<QuasiParabolic ID="12" StartDistance="6605.0" EndDistance="6615.003" A="-2.58677492E13" B="7.8209336E9" C="-591129.06" Error="1.76E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="77.0" Depth="0.154"/>
<TopsideChapman PeakHeight="245.003" PeakDensity="274069.47" PeakScaleHeight="20.845" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
