PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-15:12:50
G01     118.0          17.8                9.6 +/-    1.72      22.4 +/-    1.72  0.060 / 0.080
G07     89.1           62.1               11.0 +/-    0.96      12.3 +/-    0.96  0.070 / 0.090
G08     45.2           32.3                7.8 +/-    1.58      13.1 +/-    1.58  0.050 / 0.080
G09     177.6          27.0               10.9 +/-    1.16      20.4 +/-    1.16  0.050 / 0.080
G11     105.5          40.9               11.4 +/-    0.48      16.3 +/-    0.48  0.030 / 0.040
G13     317.1          20.7                7.9 +/-    2.40      17.1 +/-    2.40  0.040 / 0.040
G17     201.5          23.5               12.8 +/-    2.16      26.0 +/-    2.16  0.190 / 0.300
G18     92.4           20.9               10.3 +/-    1.95      22.2 +/-    1.95  0.140 / 0.410
G28     285.4          53.9               10.8 +/-    2.71      13.0 +/-    2.71  0.140 / 0.280
G30     355.0          71.3               11.1 +/-    0.71      11.7 +/-    0.71  0.190 / 0.270