AR.5002.44 Confidence: 60% PACIFIC flags: Moderate F-spread, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2 Dr. Mangalathayil Ali Abdu INPE, Division of Aeronomy

Av dos Astronautas, 1.758 Jd. Granja - CEP: 12227-010 Sao Jose dos Campos - SP Brasil

maabdu@dae.inpe.br 2026.02.18 (049) 07:00:00 FF202604902180700009039031101000005018000000001107501000080502560000000040000 2.8 2.85 2.9 2.95 3.0 3.05 3.1 3.15 3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 280.000 277.500 275.000 277.500 278.439 279.509 280.739 282.169 283.850 285.856 288.292 291.310 295.150 300.199 307.136 317.261 333.429 363.353 437.581 54 63 72 0 66 0 72 69 72 0 72 66 63 60 66 0 66 63 57 -0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 -0.390625 0.390625 -0.390625 -0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 -0.390625 0.390625 0.390625 0.390625 93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 144.374 145.0 150.0 155.0 160.0 165.0 170.0 175.0 178.747 180.0 185.0 190.0 195.0 200.0 205.0 210.0 213.121 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 280.997 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 0.2 0.234 0.307 0.343 0.354 0.351 0.344 0.33 0.311 0.283 0.246 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.206 0.228 0.25 0.273 0.295 0.318 0.34 0.354 0.399 0.555 0.755 0.997 1.3 1.689 2.165 2.634 3.006 3.276 3.466 3.593 3.669 3.699 3.7 3.69 3.653 3.593 3.513 3.417 3.308 3.19 3.066 2.938 2.807 2.676 2.546 2.417 2.292 2.17 2.051 1.938 1.828 1.724 1.624 1.529 1.439 1.353 1.272 1.196 1.123 1.055 0.99 0.93 0.873 0.819 0.768 0.721 0.676 0.634 0.594 0.557 0.523 0.49 0.459 0.431 0.404 0.379 0.355 0.333 0.312 0.292 0.274 0.257 0.241 0.225 0.211 -18.791 2.435 -0.142 -75.433 12.939 -7.86 3.364 -0.886