PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-12:57:40
G01     109.3          24.3                5.3 +/-    0.99      10.5 +/-    0.99  0.060 / 0.050
G07     103.1          59.9                7.7 +/-    0.52       8.8 +/-    0.52  0.040 / 0.060
G08     41.9           21.0                5.8 +/-    1.26      12.5 +/-    1.26  0.070 / 0.150
G09     173.9          14.0                7.7 +/-    1.11      19.6 +/-    1.11  0.070 / 0.160
G11     90.9           42.4                7.5 +/-    0.44      10.5 +/-    0.44  0.040 / 0.100
G13     311.2          27.4                5.9 +/-    0.85      11.0 +/-    0.85  0.050 / 0.090
G17     204.6          36.2                7.4 +/-    2.09      11.4 +/-    2.09  0.030 / 0.030
G18     82.4           23.8                5.5 +/-    0.94      11.0 +/-    0.94  0.020 / 0.030
G28     312.8          60.5                5.8 +/-    0.94       6.6 +/-    0.94  0.030 / 0.040
G30     8.2            76.2                6.2 +/-    0.37       6.3 +/-    0.37  0.030 / 0.040