PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/06-16:27:30
G02     29.6           57.4                7.3 +/-    0.78       8.4 +/-    0.78  0.030 / 0.040
G05     143.2          61.3               10.0 +/-    0.58      11.2 +/-    0.58  0.030 / 0.040
G06     53.4           15.0                7.0 +/-    1.83      17.4 +/-    1.83  0.070 / 0.050
G12     197.8          68.5                8.5 +/-    0.73       9.1 +/-    0.73  0.060 / 0.060
G25     298.3          52.4                8.1 +/-    2.60       9.9 +/-    2.60  0.060 / 0.040
G29     306.6          27.3                7.2 +/-    2.80      13.3 +/-    2.80  0.030 / 0.040