PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-17:57:40
G02     24.7           61.6               10.9 +/-    0.54      12.2 +/-    0.54  0.030 / 0.040
G05     147.6          57.7               12.7 +/-    0.77      14.8 +/-    0.77  0.030 / 0.040
G06     52.0           17.3                8.1 +/-    2.54      19.1 +/-    2.54  0.040 / 0.050
G12     192.6          69.5               12.0 +/-    0.74      12.7 +/-    0.74  0.040 / 0.040
G19     94.9           15.7               10.6 +/-    2.29      26.0 +/-    2.29  0.040 / 0.030
G25     302.3          51.3               10.5 +/-    3.56      13.1 +/-    3.56  0.030 / 0.030
G29     303.3          23.3                9.6 +/-    1.23      19.6 +/-    1.23  0.200 / 0.230