PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-02:28:10
G02     263.2          80.7                9.1 +/-    0.62       9.2 +/-    0.62  0.050 / 0.040
G05     168.9          21.0                9.8 +/-    1.35      21.0 +/-    1.35  0.060 / 0.050
G06     39.9           54.5                6.5 +/-    0.67       7.8 +/-    0.67  0.050 / 0.200
G12     321.1          55.8                7.3 +/-    1.05       8.6 +/-    1.05  0.080 / 0.130
G17     72.9           23.0                6.5 +/-    1.12      13.4 +/-    1.12  0.030 / 0.040
G19     61.3           36.3                7.3 +/-    0.66      11.4 +/-    0.66  0.030 / 0.040
G24     241.1          32.2               12.9 +/-    1.22      21.6 +/-    1.22  0.050 / 0.120
G25     317.4          15.3                6.0 +/-    1.83      14.7 +/-    1.83  0.060 / 0.130