PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/09-18:58:10
G02     18.8           65.5                7.9 +/-    0.43       8.6 +/-    0.43  0.030 / 0.050
G05     153.0          52.4               12.2 +/-    1.28      14.9 +/-    1.28  0.030 / 0.050
G06     49.2           21.9                7.2 +/-    1.04      15.1 +/-    1.04  0.030 / 0.030
G12     205.1          76.1                9.4 +/-    1.41       9.7 +/-    1.41  0.030 / 0.040
G19     90.3           18.8                9.5 +/-    0.48      21.5 +/-    0.48  0.050 / 0.080
G25     308.3          46.5                7.6 +/-    1.12      10.0 +/-    1.12  0.090 / 0.080
G29     299.3          19.5                9.1 +/-    1.20      20.3 +/-    1.20  0.040 / 0.050