PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/22-19:12:40
G02     19.5           64.8                7.0 +/-    1.09       7.6 +/-    1.09  0.060 / 0.080
G05     152.8          52.1               11.7 +/-    0.60      14.4 +/-    0.60  0.070 / 0.060
G06     48.0           23.7                5.8 +/-    2.83      11.8 +/-    2.83  0.100 / 0.300
G12     233.7          78.5                8.4 +/-    0.22       8.6 +/-    0.22  0.100 / 0.250
G19     91.5           14.6                7.9 +/-    1.78      19.7 +/-    1.78  0.080 / 0.130
G25     309.3          44.6                8.1 +/-    1.16      11.0 +/-    1.16  0.070 / 0.130
G29     299.7          21.0                8.7 +/-    1.49      18.7 +/-    1.49  0.030 / 0.040