PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/22-15:27:50
G01     310.4          30.4                7.0 +/-    0.91      12.2 +/-    0.91  0.100 / 0.120
G10     101.6          43.3                7.2 +/-    0.86      10.0 +/-    0.86  0.100 / 0.130
G11     289.4          26.5                8.4 +/-    1.73      15.9 +/-    1.73  0.040 / 0.040
G14     342.2          68.9                4.8 +/-    0.40       5.1 +/-    0.40  0.040 / 0.050
G22     308.6          24.2                6.4 +/-    0.90      12.7 +/-    0.90  0.040 / 0.030
G25     86.9           15.4                7.7 +/-    1.57      18.9 +/-    1.57  0.030 / 0.030
G31     168.6          61.3                8.6 +/-    0.53       9.6 +/-    0.53  0.080 / 0.190
G32     32.6           54.7                5.4 +/-    1.05       6.5 +/-    1.05  0.130 / 0.170