PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/16-00:12:30
G02     204.8          42.4               14.8 +/-    0.98      20.8 +/-    0.98  0.110 / 0.110
G06     146.4          75.1               11.9 +/-    0.67      12.2 +/-    0.67  0.100 / 0.060
G12     310.8          19.8                9.1 +/-    1.13      20.2 +/-    1.13  0.060 / 0.040
G17     37.5           48.6                9.2 +/-    1.76      11.9 +/-    1.76  0.100 / 0.030
G19     11.8           61.9                9.8 +/-    0.56      10.9 +/-    0.56  0.030 / 0.020
G24     290.9          40.5               14.4 +/-    6.81      20.8 +/-    6.81  0.030 / 0.010
G28     108.5          26.7               11.7 +/-    1.17      21.9 +/-    1.17  0.110 / 0.150