PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-16:28:00
G01     119.0          18.1               10.9 +/-    0.87      25.2 +/-    0.87  0.030 / 0.040
G07     80.6           66.7               10.6 +/-    0.56      11.5 +/-    0.56  0.030 / 0.030
G08     45.2           32.5                9.0 +/-    0.81      15.0 +/-    0.81  0.030 / 0.040
G09     176.6          25.3                9.6 +/-    1.23      18.6 +/-    1.23  0.020 / 0.040
G11     107.0          40.1               11.1 +/-    0.67      16.1 +/-    0.67  0.050 / 0.090
G13     317.6          19.6                9.9 +/-    1.76      22.0 +/-    1.76  0.050 / 0.090
G17     202.4          23.0               10.2 +/-    1.31      20.9 +/-    1.31  0.060 / 0.190
G18     94.2           21.0               10.7 +/-    0.75      22.9 +/-    0.75  0.070 / 0.130
G28     293.3          57.5                9.5 +/-    1.07      11.0 +/-    1.07  0.040 / 0.060
G30     347.5          69.0               10.2 +/-    0.51      10.8 +/-    0.51  0.050 / 0.060