PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-07:57:50
G01     112.5          20.9                6.6 +/-    1.31      14.2 +/-    1.31  0.040 / 0.030
G07     94.7           62.2                6.9 +/-    0.53       7.7 +/-    0.53  0.050 / 0.030
G08     43.6           28.6                3.7 +/-    0.67       6.6 +/-    0.67  0.030 / 0.050
G09     175.2          20.0                6.0 +/-    1.46      13.3 +/-    1.46  0.030 / 0.050
G11     101.7          43.2                5.3 +/-    0.83       7.4 +/-    0.83  0.080 / 0.210
G13     314.2          24.8                3.1 +/-    1.40       6.2 +/-    1.40  0.080 / 0.220
G17     202.7          28.3                5.1 +/-    2.15       9.3 +/-    2.15  0.100 / 0.270
G18     87.8           22.7                2.4 +/-    1.19       4.9 +/-    1.19  0.090 / 0.210
G28     290.9          54.7                5.8 +/-    0.99       7.0 +/-    0.99  0.080 / 0.170
G30     351.2          71.9                5.4 +/-    0.60       5.7 +/-    0.60  0.070 / 0.170