PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-07:57:40
G02     236.7          76.0                5.9 +/-    0.52       6.0 +/-    0.52  0.120 / 0.260
G05     174.2          12.2                5.0 +/-    1.96      13.2 +/-    1.96  0.110 / 0.210
G06     41.4           61.3                4.5 +/-    0.52       5.1 +/-    0.52  0.060 / 0.110
G12     321.6          50.8                5.4 +/-    1.15       6.7 +/-    1.15  0.070 / 0.090
G17     68.2           23.3                4.2 +/-    0.83       8.5 +/-    0.83  0.030 / 0.030
G19     55.0           38.6                3.8 +/-    0.48       5.7 +/-    0.48  0.030 / 0.030
G24     250.1          36.2                7.1 +/-    1.15      11.0 +/-    1.15  0.090 / 0.480
G28     128.8          11.4                6.9 +/-    2.61      18.8 +/-    2.61  0.120 / 0.370