PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-12:42:30
G08     307.5          20.5                3.0 +/-    2.20       6.5 +/-    2.20  0.060 / 0.090
G10     335.4          60.5                3.9 +/-    0.75       4.4 +/-    0.75  0.070 / 0.090
G14     218.2          32.5                3.5 +/-    1.34       5.8 +/-    1.34  0.120 / 0.160
G20     39.8           59.9                3.7 +/-    0.41       4.2 +/-    0.41  0.080 / 0.130
G21     135.2          50.8                5.1 +/-    0.64       6.4 +/-    0.64  0.050 / 0.050
G24     70.2           28.6                2.7 +/-    2.01       4.8 +/-    2.01  0.050 / 0.040
G27     276.8          36.7                6.1 +/-    1.04       9.4 +/-    1.04  0.040 / 0.030
G32     223.7          50.1                5.4 +/-    2.16       6.8 +/-    2.16  0.030 / 0.040