<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 02:30:00.000"
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" >
2026.05.12 (132) 02:30:00</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">
FF202613205120230001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.519" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.436" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="290.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="290.000" 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="84" Val="16.250" Name="QF" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.325" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="290.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="286.312" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="259.918" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.974" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="37.811" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.131" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.248" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="36.420" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.510" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="8">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
290.000 297.048 305.898 317.339 332.705 354.437 387.521 443.997
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 87 81 78 0 84 81 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="501">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.462 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.924 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.386 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 286.312 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0
</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 0.35369936 0.35321155 0.35265046 0.35186782 0.3509409 0.34987223 0.3485916 0.34710422 0.34548807 0.3436766 0.34160703 0.339429 0.3370802 0.33450326 0.33171207 0.32872152 0.3255475 0.3221452 0.31847727 0.3146302 0.3105163 0.30617228 0.30153242 0.29662436 0.29148176 0.2859875 0.28015143 0.274007 0.26746634 0.26051545 0.25315788 0.24534512 0.23697576 0.22812901 0.21859701 0.2084631 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 0.2 0.2 0.2 0.20031242 0.20442325 0.20853409 0.21264492 0.21675575 0.22086659 0.22497742 0.22908825 0.23319907 0.23730992 0.24142075 0.24553157 0.24964242 0.25375324 0.2578641 0.2619749 0.26608574 0.2701966 0.2743074 0.27841824 0.28252906 0.2866399 0.29075074 0.29486156 0.2989724 0.30308324 0.30719405 0.3113049 0.31541574 0.31952655 0.3236374 0.32774824 0.33185905 0.3359699 0.3400807 0.34419155 0.3483024 0.3524132 0.354 0.3661797 0.38816503 0.41300672 0.44080374 0.47150573 0.50487703 0.54057544 0.578223 0.61747247 0.6580534 0.6997885 0.74255407 0.7863146 0.83105946 0.87680954 0.9236226 0.97156227 1.0206956 1.0710995 1.1228657 1.1760635 1.2307869 1.2870936 1.3450649 1.4047539 1.4661838 1.5293725 1.5943134 1.660934 1.7291535 1.7988188 1.8697437 1.9416566 2.0142548 2.0871897 2.1600428 2.2324226 2.3038857 2.3740184 2.4424546 2.5088217 2.5728333 2.634251 2.6928797 2.7485867 2.8012788 2.8508985 2.8974307 2.9408724 2.9812493 3.0185995 3.052962 3.0843866 3.1129272 3.1386452 3.16158 3.1817853 3.1993053 3.214179 3.226442 3.2361233 3.2432454 3.2478266 3.2498772 3.25 3.2496362 3.2478328 3.2445626 3.2398748 3.2338188 3.2264435 3.2177985 3.2079334 3.1968968 3.1847374 3.171504 3.1572435 3.1420038 3.1258304 3.1087697 3.090866 3.0721636 3.052705 3.032533 3.011688 2.9902105 2.9681392 2.9455123 2.9223666 2.8987381 2.8746612 2.85017 2.8252964 2.8000724 2.7745285 2.7486937 2.7225962 2.6962636 2.6697218 2.642996 2.6161108 2.589089 2.5619528 2.5347238 2.5074222 2.4800675 2.4526787 2.425273 2.3978677 2.3704786 2.3431215 2.315811 2.2885604 2.2613835 2.2342923 2.207299 2.1804142 2.153649 2.127013 2.1005156 2.0741656 2.0479712 2.0219402 1.9960797 1.9703966 1.9448972 1.9195873 1.8944722 1.8695573 1.8448467 1.8203452 1.7960563 1.7719837 1.7481307 1.7245002 1.7010947 1.6779169 1.6549685 1.6322515 1.6097674 1.5875177 1.5655034 1.5437254 1.5221844 1.500881 1.4798155 1.458988 1.4383986 1.4180472 1.3979334 1.3780568 1.3584168 1.3390129 1.3198441 1.3009096 1.2822084 1.2637395 1.2455015 1.2274933 1.2097135 1.1921606 1.1748333 1.1577299 1.1408489 1.1241885 1.1077472 1.091523 1.0755142 1.0597191 1.0441356 1.028762 1.0135962 0.99863625 0.9838803 0.9693262 0.954972 0.9408157 0.92685515 0.9130883 0.8995132 0.88612765 0.8729296 0.8599169 0.84708756 0.8344394 0.82197034 0.8096783 0.7975612 0.78561705 0.7738436 0.76223886 0.7508007 0.7395272 0.7284162 0.71746576 0.70667374 0.6960382 0.68555707 0.6752285 0.6650503 0.6550208 0.6451377 0.6353994 0.6258038 0.6163491 0.6070333 0.5978547 0.5888112 0.5799012 0.5711228 0.56247425 0.55395365 0.54555935 0.53728956 0.5291426 0.5211167 0.5132102 0.5054214 0.49774873 0.49019048 0.48274508 0.47541088 0.46818635 0.46106994 0.45406005 0.4471552 0.4403539 0.43365464 0.42705595 0.4205564 0.41415453 0.40784892 0.40163824 0.39552107 0.38949603 0.38356182 0.37771708 0.37196052 0.36629084 0.36070678 0.3552071 0.3497905 0.34445584 0.33920184 0.33402732 0.32893115 0.32391214 0.31896916 0.3141011 0.3093068 0.3045852 0.29993522 0.29535577 0.29084584 0.28640434 0.2820303 0.27772272 0.27348053 0.26930285 0.26518863 0.26113698 0.25714692 0.25321758 0.249348 0.2455373 0.24178459 0.23808901 0.23444968 0.23086579 0.22733648 0.22386092 0.22043832 0.21706787 0.21374878 0.21048029 0.20726162 0.20409204 0.20097077 0.19789712 0.19487034 0.19188973 0.1889546 0.18606426 0.18321803 0.18041523 0.1776552 0.17493732 0.17226093 0.16962539 0.1670301 0.16447444 0.16195782 0.15947963 0.1570393 0.15463623 0.15226988 0.1499397 0.14764512 0.14538558 0.14316058 0.14096959 0.13881208 0.13668756 0.1345955 0.13253543 0.13050684 0.12850927 0.12654224 0.12460528 0.12269794 0.12081977 0.11897032 0.11714915 0.115355834 0.11358995 0.11185107 0.11013878 0.108452685 0.10679238 0.10515748 0.10354759 0.10196232 0.100401305 0.098864175 0.09735056 0.0958601 0.09439245 0.09294726 0.09152418 0.09012287 0.08874301 0.08738426 0.08604631 0.08472883 0.08343151 0.08215405 0.08089614 0.07965748 0.078437775 0.07723674 0.076054096 0.07488955 0.07374282 0.07261365 0.07150176 0.07040689 0.069328785 0.068267174 0.06722182 0.06619247 0.06517887 0.06418079 0.06319799 0.06223024 0.0612773 0.06033895 0.059414964 0.058505125 0.05760922 0.056727026 0.055858336 0.05500295 0.05416066 0.053331263 0.052514568 0.051710375 0.050918497 0.05013874

</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="3.25" PeakHeight="286.312" Num="5" zHalfNm="259.918" Error="2.171">
-66.115 4.141 -2.851 1.674 -0.775
</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="6517.462" A="-1.083822E11" B="3.3451298E7" C="-2580.9934" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6517.462" EndDistance="6554.924" A="0.0" B="86.75552" C="0.026727578" Error="9.7E-4"/>
<QuasiParabolic ID="3" StartDistance="6554.924" EndDistance="6591.0" A="2.9446402E10" B="-9056094.0" C="696.28564" Error="0.00816"/>
<QuasiParabolic ID="4" StartDistance="6591.0" EndDistance="6596.0" A="4.5051648E12" B="-1.36718643E9" C="103725.445" Error="0.00996"/>
<QuasiParabolic ID="5" StartDistance="6596.0" EndDistance="6602.0" A="4.21174234E12" B="-1.27821658E9" C="96981.22" Error="0.00437"/>
<QuasiParabolic ID="6" StartDistance="6602.0" EndDistance="6611.0" A="5.4787404E12" B="-1.66203904E9" C="126049.87" Error="0.00285"/>
<QuasiParabolic ID="7" StartDistance="6611.0" EndDistance="6632.0" A="1.13904242E13" B="-3.45047757E9" C="261312.2" Error="0.00988"/>
<QuasiParabolic ID="8" StartDistance="6632.0" EndDistance="6642.0" A="-1.1277568E13" B="3.38546688E9" C="-254063.61" Error="0.00271"/>
<QuasiParabolic ID="9" StartDistance="6642.0" EndDistance="6656.312" A="-1.60140435E13" B="4.8116864E9" C="-361427.3" Error="3.98E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.386" Depth="0.154"/>
<TopsideChapman PeakHeight="286.312" PeakDensity="131048.39" PeakScaleHeight="20.248" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
