PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-15:43:00
G03     292.9          67.9                9.3 +/-    0.52      10.0 +/-    0.52  0.080 / 0.130
G14     80.7           29.8                9.4 +/-    1.89      16.5 +/-    1.89  0.080 / 0.130
G16     150.1          40.4               12.6 +/-    0.80      18.2 +/-    0.80  0.110 / 0.140
G18     207.3          11.0               10.1 +/-    2.12      27.5 +/-    2.12  0.060 / 0.100
G22     217.8          73.5               10.8 +/-    0.67      11.2 +/-    0.67  0.030 / 0.030
G23     305.3          36.5                9.6 +/-    1.88      14.9 +/-    1.88  0.030 / 0.030
G26     104.3          52.6               11.0 +/-    0.68      13.5 +/-    0.68  0.200 / 0.360
G31     43.8           35.2                7.7 +/-    1.36      12.2 +/-    1.36  0.110 / 0.270