PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/05-08:28:10
G02     239.5          76.7                6.0 +/-    0.44       6.1 +/-    0.44  0.320 / 0.510
G05     174.0          12.8                2.4 +/-    7.08       6.3 +/-    7.08  0.310 / 0.500
G06     41.0           60.1                5.1 +/-    0.58       5.8 +/-    0.58  0.040 / 0.050
G12     321.8          52.3                4.1 +/-    0.69       5.0 +/-    0.69  0.050 / 0.050
G17     69.0           22.8                3.2 +/-    4.36       6.5 +/-    4.36  0.250 / 0.420
G19     56.1           37.9                4.2 +/-    2.32       6.4 +/-    2.32  0.240 / 0.430
G24     249.0          35.7                6.9 +/-    1.98      10.9 +/-    1.98  0.060 / 0.130
G28     129.5          10.4                6.8 +/-    3.58      18.7 +/-    3.58  0.110 / 0.140