PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/30-21:12:40
G05     51.5           11.6                7.7 +/-    1.33      20.8 +/-    1.33  0.070 / 0.140
G10     241.2          18.2               15.1 +/-    2.14      34.6 +/-    2.14  0.160 / 0.150
G13     66.1           34.8               10.5 +/-    1.03      16.7 +/-    1.03  0.050 / 0.070
G15     118.7          56.5               10.9 +/-    0.89      12.8 +/-    0.89  0.060 / 0.070
G16     305.7          15.5                9.5 +/-    2.68      23.3 +/-    2.68  0.110 / 0.530
G20     244.4          5.5                 6.7 +/-    1.53      20.3 +/-    1.53  0.130 / 0.580
G21     319.3          51.0               12.5 +/-    1.25      15.5 +/-    1.25  0.050 / 0.120
G26     278.0          19.7               11.7 +/-    1.58      25.9 +/-    1.58  0.070 / 0.150
G29     160.9          65.2               10.7 +/-    1.43      11.6 +/-    1.43  0.030 / 0.050