PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-15:58:10
G01     304.4          35.5                8.2 +/-    1.75      13.0 +/-    1.75  0.050 / 0.060
G10     109.2          36.8                9.4 +/-    0.67      14.5 +/-    0.67  0.060 / 0.060
G11     276.7          28.1                8.5 +/-    1.24      15.5 +/-    1.24  0.080 / 0.150
G14     5.7            65.1                7.1 +/-    0.41       7.7 +/-    0.41  0.070 / 0.130
G18     265.7          51.7                8.4 +/-    1.08      10.4 +/-    1.08  0.060 / 0.090
G20     122.4          11.5                8.4 +/-    2.88      22.7 +/-    2.88  0.090 / 0.100
G22     311.3          29.6                6.4 +/-    1.78      11.2 +/-    1.78  0.040 / 0.050
G25     75.7           16.3                8.5 +/-    2.81      20.5 +/-    2.81  0.040 / 0.040
G31     171.6          65.0                9.1 +/-    0.37       9.9 +/-    0.37  0.080 / 0.050
G32     36.5           52.5                7.8 +/-    1.01       9.6 +/-    1.01  0.040 / 0.060