PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-01:58:00
G01     235.3          25.4                7.3 +/-    1.85      14.2 +/-    1.85  0.040 / 0.040
G03     308.0          57.7                3.8 +/-    0.82       4.4 +/-    0.82  0.040 / 0.030
G14     75.8           31.4                4.0 +/-    0.71       6.8 +/-    0.71  0.070 / 0.120
G16     153.6          34.0                8.0 +/-    0.62      12.9 +/-    0.62  0.070 / 0.160
G18     208.8          14.5                6.5 +/-    1.36      16.3 +/-    1.36  0.100 / 0.150
G22     262.7          74.9                4.8 +/-    0.89       5.0 +/-    0.89  0.090 / 0.150
G23     298.0          28.2                3.7 +/-    1.05       6.8 +/-    1.05  0.080 / 0.160
G26     117.1          49.7                6.1 +/-    1.06       7.8 +/-    1.06  0.070 / 0.130
G31     41.7           43.1                3.1 +/-    0.67       4.2 +/-    0.67  0.070 / 0.120
G32     90.6           12.5                4.2 +/-    0.95      11.1 +/-    0.95  0.070 / 0.120