PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-03:13:00
G02     335.2          80.0                2.6 +/-    0.47       2.6 +/-    0.47  0.220 / 0.230
G05     164.9          31.0                6.9 +/-    1.47      11.8 +/-    1.47  0.250 / 0.260
G06     39.1           48.1                2.1 +/-    0.94       2.7 +/-    0.94  0.030 / 0.030
G12     316.1          65.2                2.7 +/-    0.97       3.0 +/-    0.97  0.030 / 0.030
G17     84.0           11.7                4.5 +/-    1.75      12.1 +/-    1.75  0.070 / 0.110
G19     71.7           29.2                3.8 +/-    1.59       6.7 +/-    1.59  0.060 / 0.090
G24     228.7          24.3                7.2 +/-    2.58      14.2 +/-    2.58  0.030 / 0.020
G25     317.2          27.9                1.7 +/-    1.90       3.1 +/-    1.90  0.030 / 0.030
G29     285.6          11.5                0.4 +/-   15.98       1.1 +/-   15.98  0.130 / 0.140