PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-17:12:40
G07     53.1           67.4                9.3 +/-    0.43      10.0 +/-    0.43  0.080 / 0.100
G08     55.5           43.7                9.2 +/-    0.55      12.6 +/-    0.55  0.050 / 0.090
G09     179.8          43.9               12.8 +/-    2.20      17.6 +/-    2.20  0.060 / 0.160
G11     123.1          32.6               12.6 +/-    1.10      20.9 +/-    1.10  0.060 / 0.130
G18     107.1          13.7               11.4 +/-    1.59      29.4 +/-    1.59  0.030 / 0.040
G23     160.3          12.8               10.4 +/-    1.16      27.2 +/-    1.16  0.030 / 0.040
G27     38.7           13.3                6.3 +/-    1.14      16.4 +/-    1.14  0.080 / 0.130
G28     263.2          45.6               10.2 +/-    0.69      13.7 +/-    0.69  0.080 / 0.130
G30     328.9          57.7                9.0 +/-    0.65      10.5 +/-    0.65  0.080 / 0.290