PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-16:12:30
G01     310.4          30.4                7.2 +/-    0.75      12.5 +/-    0.75  0.140 / 0.140
G10     101.6          43.3                8.7 +/-    0.59      12.0 +/-    0.59  0.090 / 0.120
G11     289.0          26.7                6.7 +/-    3.94      12.6 +/-    3.94  0.030 / 0.030
G14     343.2          68.8                6.4 +/-    0.29       6.9 +/-    0.29  0.040 / 0.040
G22     308.4          23.8                6.8 +/-    1.47      13.6 +/-    1.47  0.090 / 0.190
G25     86.8           15.4                9.2 +/-    1.60      22.7 +/-    1.60  0.110 / 0.180
G31     169.1          61.0               10.7 +/-    0.61      12.1 +/-    0.61  0.030 / 0.030
G32     32.4           54.9                6.5 +/-    0.90       7.7 +/-    0.90  0.030 / 0.040