PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-21:12:50
G01     106.5          25.4               13.6 +/-    1.26      26.3 +/-    1.26  0.030 / 0.050
G07     110.2          53.0               12.4 +/-    0.86      15.1 +/-    0.86  0.030 / 0.050
G08     41.6           18.8                8.2 +/-    1.87      18.6 +/-    1.87  0.140 / 0.210
G09     175.3          14.4               14.1 +/-    1.05      35.5 +/-    1.05  0.140 / 0.180
G11     86.5           42.8               12.1 +/-    0.96      16.9 +/-    0.96  0.100 / 0.160
G13     309.1          29.5               10.2 +/-    1.18      18.1 +/-    1.18  0.100 / 0.130
G17     204.8          39.4               14.4 +/-    0.62      21.1 +/-    0.62  0.070 / 0.050
G18     77.1           23.5               10.9 +/-    1.93      22.1 +/-    1.93  0.060 / 0.060
G28     310.5          59.5               10.2 +/-    0.86      11.7 +/-    0.86  0.030 / 0.030
G30     27.8           78.4               11.6 +/-    1.06      11.9 +/-    1.06  0.030 / 0.020