PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-08:57:40
G02     339.8          79.8                5.2 +/-    0.71       5.3 +/-    0.71  0.060 / 0.100
G05     167.7          28.2                8.4 +/-    1.71      15.3 +/-    1.71  0.090 / 0.100
G06     40.3           43.5                3.4 +/-    0.67       4.7 +/-    0.67  0.060 / 0.120
G12     316.4          69.6                5.0 +/-    0.62       5.3 +/-    0.62  0.060 / 0.130
G17     82.6           12.9                7.6 +/-    1.84      20.0 +/-    1.84  0.110 / 0.170
G19     72.0           27.4                4.8 +/-    0.56       8.8 +/-    0.56  0.110 / 0.130
G24     232.8          25.5                7.4 +/-    1.62      14.3 +/-    1.62  0.040 / 0.030
G25     317.2          25.3                3.6 +/-    4.96       7.0 +/-    4.96  0.040 / 0.040