PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-04:42:40
G02     37.8           51.0                3.3 +/-    0.32       4.1 +/-    0.32  0.030 / 0.030
G05     128.1          65.6                5.1 +/-    0.53       5.5 +/-    0.53  0.030 / 0.050
G06     54.4           17.0                1.7 +/-    0.67       4.0 +/-    0.67  0.090 / 0.130
G12     198.9          65.2                5.6 +/-    0.98       6.1 +/-    0.98  0.100 / 0.170
G25     287.1          57.5                4.0 +/-    1.31       4.6 +/-    1.31  0.050 / 0.050
G29     313.2          36.1                4.3 +/-    1.12       6.7 +/-    1.12  0.040 / 0.030