PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-03:57:50
G02     85.5           11.6                2.6 +/-   28.99       6.9 +/-   28.99  0.140 / 0.400
G05     45.1           29.5               -0.4 +/-   27.90      -0.7 +/-   27.90  0.150 / 0.430
G13     97.1           33.9                6.1 +/-   27.84       9.8 +/-   27.84  0.040 / 0.090
G15     143.1          39.6                5.5 +/-   29.25       8.0 +/-   29.25  0.060 / 0.090
G20     239.0          47.3                5.3 +/-   26.05       6.9 +/-   26.05  0.100 / 0.190
G21     298.2          36.5                4.5 +/-   29.27       7.0 +/-   29.27  0.130 / 0.210
G25     208.8          24.7                4.6 +/-   27.09       9.1 +/-   27.09  0.060 / 0.120
G26     302.6          19.6                5.4 +/-   27.31      12.0 +/-   27.31  0.080 / 0.120
G29     28.2           86.9                2.0 +/-   26.86       2.0 +/-   26.86  0.030 / 0.030