PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-19:43:10
G01     72.1           33.1               10.2 +/-    0.89      16.8 +/-    0.89  0.070 / 0.280
G07     136.8          32.5               13.0 +/-    1.49      21.7 +/-    1.49  0.070 / 0.210
G11     55.1           32.3                9.0 +/-    1.11      15.1 +/-    1.11  0.040 / 0.030
G13     276.1          37.6               12.3 +/-    2.45      18.6 +/-    2.45  0.030 / 0.030
G15     303.9          14.8                6.8 +/-    1.69      17.0 +/-    1.69  0.050 / 0.080
G17     230.5          64.6               13.0 +/-    0.97      14.3 +/-    0.97  0.070 / 0.110
G18     50.2           19.0               10.5 +/-    2.05      23.8 +/-    2.05  0.030 / 0.040
G19     223.4          39.6               14.0 +/-    1.35      20.5 +/-    1.35  0.030 / 0.040
G28     18.1           59.5               10.9 +/-    0.69      12.5 +/-    0.69  0.140 / 0.160
G30     134.2          61.9               12.7 +/-    0.37      14.2 +/-    0.37  0.100 / 0.220