PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-06:27:50
G01     235.6          25.5                5.8 +/-    1.80      11.2 +/-    1.80  0.030 / 0.030
G03     308.2          57.2                4.8 +/-    1.65       5.6 +/-    1.65  0.030 / 0.030
G14     74.9           32.7                3.2 +/-    1.51       5.3 +/-    1.51  0.110 / 0.190
G16     152.2          34.7                5.8 +/-    2.07       9.2 +/-    2.07  0.110 / 0.210
G18     210.2          15.3                4.7 +/-    2.02      11.7 +/-    2.02  0.080 / 0.110
G22     261.4          75.3                6.4 +/-    0.99       6.6 +/-    0.99  0.080 / 0.120
G23     298.5          29.3                6.1 +/-    0.94      10.8 +/-    0.94  0.080 / 0.130
G26     114.0          49.7                5.8 +/-    0.58       7.3 +/-    0.58  0.070 / 0.110
G31     42.2           40.6                2.1 +/-    0.95       3.0 +/-    0.95  0.070 / 0.130
G32     90.9           11.7                4.1 +/-    1.32      11.1 +/-    1.32  0.070 / 0.160