PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-14:27:50
G02     202.1          24.2                7.7 +/-    1.25      15.3 +/-    1.25  0.060 / 0.130
G06     165.6          61.0                9.0 +/-    0.55      10.2 +/-    0.55  0.050 / 0.070
G17     23.5           58.1                6.8 +/-    1.08       7.8 +/-    1.08  0.040 / 0.030
G19     346.3          69.1                6.5 +/-    1.10       6.9 +/-    1.10  0.030 / 0.030
G24     305.8          32.8                4.4 +/-    1.48       7.2 +/-    1.48  0.070 / 0.110
G28     90.2           41.6                6.5 +/-    0.90       9.2 +/-    0.90  0.080 / 0.130