PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-17:12:30
G02     27.3           59.1                9.6 +/-    1.12      11.0 +/-    1.12  0.130 / 0.230
G05     145.0          59.8               11.2 +/-    0.97      12.8 +/-    0.97  0.110 / 0.210
G06     52.4           16.5                7.1 +/-    1.82      17.1 +/-    1.82  0.050 / 0.040
G12     201.6          70.7                9.1 +/-    0.48       9.6 +/-    0.48  0.060 / 0.060
G25     300.7          51.1                9.4 +/-    1.98      11.7 +/-    1.98  0.030 / 0.040
G29     305.4          26.2                9.5 +/-    2.00      18.1 +/-    2.00  0.040 / 0.040