PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-18:57:50
G02     12.9           68.8                7.2 +/-    0.46       7.7 +/-    0.46  0.030 / 0.050
G05     156.4          48.3               11.7 +/-    1.14      15.1 +/-    1.14  0.030 / 0.050
G06     47.3           25.3                7.7 +/-    2.94      15.0 +/-    2.94  0.090 / 0.370
G12     221.2          79.7                8.1 +/-    0.25       8.2 +/-    0.25  0.100 / 0.200
G19     86.7           21.2                9.3 +/-    1.31      19.8 +/-    1.31  0.050 / 0.070
G24     216.4          12.0               11.0 +/-    3.08      29.5 +/-    3.08  0.050 / 0.070
G25     311.5          43.0                8.6 +/-    1.17      11.9 +/-    1.17  0.030 / 0.030
G29     296.4          16.7               11.3 +/-    1.02      27.0 +/-    1.02  0.030 / 0.030