PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/22-00:58:00
G02     0.7            74.8                8.7 +/-    0.50       9.0 +/-    0.50  0.030 / 0.040
G05     161.1          38.5               12.9 +/-    0.67      19.3 +/-    0.67  0.030 / 0.030
G06     41.6           39.1                6.5 +/-    0.74       9.7 +/-    0.74  0.120 / 0.280
G12     305.9          72.4                9.4 +/-    0.94       9.8 +/-    0.94  0.130 / 0.290
G19     78.8           24.2               10.4 +/-    0.78      20.7 +/-    0.78  0.080 / 0.100
G24     224.0          19.3               13.7 +/-    2.74      30.6 +/-    2.74  0.080 / 0.130
G25     316.0          33.6                7.8 +/-    1.96      12.8 +/-    1.96  0.030 / 0.050
G29     290.7          14.9                9.2 +/-    1.98      23.0 +/-    1.98  0.040 / 0.060