PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-00:12:20
G02     27.2           59.9                9.8 +/-    0.70      11.2 +/-    0.70  0.110 / 0.080
G05     146.4          56.8               12.9 +/-    0.78      15.1 +/-    0.78  0.120 / 0.060
G06     49.4           22.5                7.9 +/-    1.50      16.3 +/-    1.50  0.040 / 0.040
G12     221.7          75.9               11.8 +/-    0.58      12.1 +/-    0.58  0.050 / 0.050
G19     94.7           12.9               10.5 +/-    1.93      27.5 +/-    1.93  0.230 / 0.240
G25     304.8          49.1                9.6 +/-    3.34      12.2 +/-    3.34  0.090 / 0.250
G29     304.0          26.1                9.6 +/-    2.09      18.3 +/-    2.09  0.020 / 0.030