AR.5002.44 Confidence: 70% PACIFIC flags: Moderate F-spread, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, 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 2026.02.19 (050) 01:40:00 FF202605002190140009039031101000005018000000001107501000080502560000000040000 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3 4.35 4.4 4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6.0 6.05 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8 7.85 7.9 7.95 8.0 8.05 8.1 255.000 265.000 275.000 295.000 280.000 278.333 276.667 275.000 275.000 270.000 265.000 260.000 260.000 260.000 260.000 257.500 255.000 252.500 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 252.500 255.000 260.000 270.000 280.000 270.000 270.000 275.000 275.000 280.000 280.000 280.000 280.000 275.000 275.000 275.000 275.000 274.773 274.545 274.318 274.091 273.864 273.636 273.409 273.182 272.955 272.727 272.500 272.273 272.045 271.818 271.591 271.364 271.136 270.909 270.682 270.455 270.227 270.000 270.000 265.000 265.000 265.000 265.000 265.000 265.000 265.000 265.556 266.111 266.667 267.222 267.778 268.333 268.889 269.444 270.000 275.000 280.000 290.000 305.000 305.000 325.000 315.000 365.000 375.000 396.168 432.611 66 0 51 54 0 0 0 54 54 51 0 60 57 0 72 0 63 0 63 0 63 63 0 66 54 63 0 0 57 66 51 66 69 57 63 57 54 0 60 72 72 66 72 69 66 69 66 0 0 0 0 0 0 57 0 54 63 63 60 57 0 66 57 66 60 54 63 63 63 63 66 60 63 0 0 0 0 0 0 0 0 54 0 57 48 63 63 60 54 51 51 51 0 0.390625 -0.390625 1.953125 0.390625 1.953125 2.734375 2.734375 1.171875 0.390625 0.390625 2.734375 0.390625 -0.390625 1.171875 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 1.171875 1.171875 1.171875 0.390625 0.390625 0.390625 -1.953125 0.390625 1.171875 -0.390625 2.734375 -0.390625 -0.390625 -0.390625 -0.390625 1.171875 0.390625 1.953125 1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 0.390625 1.171875 1.953125 0.390625 0.390625 0.390625 0.390625 0.390625 -2.734375 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 1.171875 0.390625 1.171875 1.171875 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 -2.734375 -1.953125 -2.734375 -1.953125 -1.171875 1.171875 0.390625 0.390625 0.390625 1.171875 0.390625 -0.390625 -1.171875 1.171875 1.171875 0.390625 1.953125 1.953125 93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 142.667 145.0 150.0 155.0 160.0 165.0 170.0 175.0 175.333 180.0 185.0 190.0 195.0 200.0 205.0 208.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 284.175 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 0.2 0.234 0.307 0.343 0.354 0.351 0.343 0.328 0.306 0.275 0.231 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.222 0.246 0.269 0.293 0.316 0.34 0.354 0.397 0.559 0.808 1.136 1.551 2.099 2.857 3.9 5.079 6.071 6.802 7.326 7.693 7.934 8.066 8.1 8.099 8.055 7.953 7.8 7.608 7.383 7.134 6.866 6.587 6.3 6.01 5.721 5.434 5.153 4.879 4.613 4.357 4.111 3.875 3.65 3.435 3.231 3.037 2.854 2.681 2.517 2.363 2.217 2.08 1.951 1.83 1.716 1.608 1.508 1.413 1.324 1.241 1.163 1.09 1.021 0.956 0.896 0.839 0.786 0.736 0.69 0.646 0.605 0.567 0.531 0.497 0.466 0.436 0.409 0.383 0.358 0.336 0.314 0.294 0.276 0.258 0.242 0.227 0.212 -18.791 2.435 -0.142 -83.371 14.483 -10.349 4.611 -1.549