PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-12:12:40
G01     114.1          21.2                5.1 +/-    1.04      11.0 +/-    1.04  0.060 / 0.260
G07     95.7           60.9                4.0 +/-    0.45       4.5 +/-    0.45  0.060 / 0.210
G08     42.9           25.0                3.2 +/-    0.94       6.3 +/-    0.94  0.040 / 0.030
G09     174.1          18.1                6.2 +/-    1.56      14.4 +/-    1.56  0.040 / 0.030
G11     97.0           40.1                4.9 +/-    0.67       7.1 +/-    0.67  0.030 / 0.040
G13     316.0          21.6                0.3 +/-    1.93       0.5 +/-    1.93  0.030 / 0.040
G17     202.4          32.5                5.6 +/-    0.99       9.2 +/-    0.99  0.080 / 0.150
G28     303.5          59.2                3.4 +/-    1.09       3.8 +/-    1.09  0.090 / 0.130
G30     353.0          71.5                2.3 +/-    1.36       2.4 +/-    1.36  0.050 / 0.120