PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-12:12:50
G08     265.4          18.1                5.2 +/-    0.94      12.0 +/-    0.94  0.150 / 0.320
G10     63.6           57.2                5.0 +/-    0.87       5.8 +/-    0.87  0.170 / 0.310
G11     310.4          18.5                3.0 +/-    1.84       6.8 +/-    1.84  0.040 / 0.040
G14     269.5          67.6                5.7 +/-    0.59       6.1 +/-    0.59  0.040 / 0.050
G18     310.9          35.2                4.3 +/-    1.90       6.8 +/-    1.90  0.030 / 0.020
G20     96.3           35.8                4.9 +/-    1.10       7.7 +/-    1.10  0.030 / 0.030
G21     154.1          11.6                4.9 +/-    4.68      13.2 +/-    4.68  0.030 / 0.020
G27     233.2          16.1                5.6 +/-    3.30      13.6 +/-    3.30  0.030 / 0.020
G31     179.8          29.2                4.4 +/-    0.82       7.9 +/-    0.82  0.100 / 0.240
G32     324.4          74.3                6.5 +/-    1.14       6.7 +/-    1.14  0.130 / 0.220