PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-17:43:10
G02     25.7           60.8                9.5 +/-    0.84      10.7 +/-    0.84  0.030 / 0.040
G05     146.5          58.6               12.5 +/-    0.53      14.4 +/-    0.53  0.030 / 0.060
G06     52.5           16.4                7.8 +/-    0.55      18.7 +/-    0.55  0.020 / 0.040
G12     191.1          68.2               10.9 +/-    0.79      11.6 +/-    0.79  0.030 / 0.040
G19     95.7           15.1               10.2 +/-    0.81      25.4 +/-    0.81  0.060 / 0.120
G25     300.9          52.1                9.8 +/-    0.94      12.1 +/-    0.94  0.070 / 0.140
G29     304.0          24.0               11.4 +/-    1.66      22.9 +/-    1.66  0.040 / 0.060