PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/12-18:13:10
G02     347.5          76.9                6.2 +/-    1.15       6.3 +/-    1.15  0.040 / 0.070
G05     162.8          37.4               10.0 +/-    1.78      15.2 +/-    1.78  0.040 / 0.080
G06     43.4           34.3                6.7 +/-    1.09      10.8 +/-    1.09  0.130 / 0.230
G12     293.4          79.7                6.0 +/-    0.94       6.0 +/-    0.94  0.170 / 0.290
G19     77.1           27.6                7.6 +/-    0.74      14.0 +/-    0.74  0.030 / 0.030
G24     223.6          19.3                9.8 +/-    0.79      22.0 +/-    0.79  0.030 / 0.030
G25     316.2          33.5                8.5 +/-    1.85      13.9 +/-    1.85  0.030 / 0.040
G29     288.6          10.1              -10.6 +/-   15.26     -29.6 +/-   15.26  0.030 / 0.030