PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-19:42:50
G02     18.5           65.6                9.3 +/-    0.95      10.1 +/-    0.95  0.060 / 0.080
G05     153.6          51.0               12.4 +/-    0.50      15.5 +/-    0.50  0.090 / 0.080
G06     47.4           24.9                8.5 +/-    3.13      16.6 +/-    3.13  0.030 / 0.040
G12     241.8          79.0               10.3 +/-    0.33      10.5 +/-    0.33  0.040 / 0.050
G19     90.4           15.5                9.6 +/-    4.10      23.7 +/-    4.10  0.280 / 0.560
G24     216.5          10.9               13.1 +/-    9.39      35.9 +/-    9.39  0.340 / 0.490
G25     310.2          43.6                9.3 +/-    0.97      12.7 +/-    0.97  0.090 / 0.240
G29     298.9          20.3                9.2 +/-    1.61      20.1 +/-    1.61  0.140 / 0.260