PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-07:57:30
G02     199.5          19.8                6.6 +/-    1.70      14.7 +/-    1.70  0.140 / 0.280
G06     169.7          52.2               13.8 +/-    0.85      16.9 +/-    0.85  0.120 / 0.220
G13     227.0          14.7                7.7 +/-    2.11      19.4 +/-    2.11  0.050 / 0.070
G17     19.9           61.3                6.9 +/-    0.74       7.8 +/-    0.74  0.060 / 0.080
G19     323.4          72.0                6.6 +/-    0.48       6.9 +/-    0.48  0.060 / 0.030
G24     311.6          26.9                4.7 +/-    1.07       8.9 +/-    1.07  0.030 / 0.040
G28     79.0           47.5               10.7 +/-    1.47      13.9 +/-    1.47  0.040 / 0.030
G30     158.0          19.3                7.7 +/-    1.84      17.2 +/-    1.84  0.030 / 0.020