PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-08:42:40
G05     51.0           11.5                2.2 +/-    3.78       5.8 +/-    3.78  0.210 / 0.160
G10     239.5          15.7                5.0 +/-    1.95      12.2 +/-    1.95  0.560 / 0.340
G13     70.1           36.2                4.5 +/-    0.75       6.9 +/-    0.75  0.090 / 0.210
G15     113.3          55.0                6.5 +/-    0.81       7.8 +/-    0.81  0.140 / 0.250
G16     310.3          13.5                2.8 +/-    1.65       7.1 +/-    1.65  0.050 / 0.050
G20     15.5           70.5                3.6 +/-    0.56       3.8 +/-    0.56  0.050 / 0.050
G21     319.0          51.3                3.1 +/-    0.42       3.9 +/-    0.42  0.040 / 0.030
G26     281.8          19.9                2.1 +/-    1.82       4.6 +/-    1.82  0.040 / 0.040
G29     158.6          65.8                7.3 +/-    0.43       7.9 +/-    0.43  0.230 / 0.190