PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-19:42:40
G02     199.9          16.8               13.1 +/-    1.89      31.3 +/-    1.89  0.070 / 0.190
G06     171.0          50.5               13.0 +/-    0.60      16.2 +/-    0.60  0.070 / 0.180
G13     230.2          15.7               12.6 +/-    1.28      30.8 +/-    1.28  0.030 / 0.050
G17     13.2           64.5               10.0 +/-    0.95      10.9 +/-    0.95  0.030 / 0.050
G19     302.6          70.5               11.5 +/-    0.67      12.1 +/-    0.67  0.100 / 0.330
G24     312.2          27.2                9.2 +/-    2.09      17.2 +/-    2.09  0.110 / 0.250
G28     83.5           41.9               11.6 +/-    0.58      16.4 +/-    0.58  0.070 / 0.180
G30     156.6          18.2               13.8 +/-    2.13      31.7 +/-    2.13  0.070 / 0.200