PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-03:12:30
G02     209.9          54.5                7.2 +/-    0.43       8.6 +/-    0.43  0.110 / 0.220
G06     96.5           80.2                4.9 +/-    0.43       5.0 +/-    0.43  0.100 / 0.220
G12     315.6          28.2                2.5 +/-    1.86       4.5 +/-    1.86  0.080 / 0.110
G17     49.5           39.3                3.2 +/-    1.48       4.7 +/-    1.48  0.100 / 0.110
G19     30.2           54.1                3.3 +/-    1.43       4.0 +/-    1.43  0.030 / 0.030
G24     276.6          42.2                5.0 +/-    0.93       7.0 +/-    0.93  0.030 / 0.030
G28     117.6          18.6                5.5 +/-    1.14      12.5 +/-    1.14  0.060 / 0.050