PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/12-13:58:00
G02     31.1           56.4                5.8 +/-    0.46       6.8 +/-    0.46  0.020 / 0.040
G05     148.3          59.4                7.4 +/-    0.74       8.4 +/-    0.74  0.040 / 0.040
G06     52.8           15.8                3.7 +/-    1.10       9.1 +/-    1.10  0.040 / 0.060
G12     195.5          68.7                5.4 +/-    0.84       5.7 +/-    0.84  0.040 / 0.060
G25     299.7          51.8                4.8 +/-    1.41       6.0 +/-    1.41  0.090 / 0.130
G29     305.5          26.1                4.9 +/-    0.96       9.4 +/-    0.96  0.090 / 0.120