PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-17:13:10
G02     31.4           56.0                8.8 +/-    0.70      10.3 +/-    0.70  0.030 / 0.040
G05     138.4          63.3               12.4 +/-    0.85      13.7 +/-    0.85  0.040 / 0.050
G06     54.6           13.4                6.3 +/-    0.83      16.2 +/-    0.83  0.040 / 0.050
G12     196.0          66.3                8.5 +/-    1.14       9.2 +/-    1.14  0.040 / 0.050
G25     295.1          53.8                9.9 +/-    1.14      12.0 +/-    1.14  0.080 / 0.170
G29     308.3          29.1                7.5 +/-    1.26      13.4 +/-    1.26  0.080 / 0.190