PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-23:58:00
G07     26.6           69.1                9.1 +/-    0.93       9.7 +/-    0.93  0.120 / 0.090
G08     59.8           47.2                7.6 +/-    0.78      10.0 +/-    0.78  0.130 / 0.080
G09     180.2          46.1                9.8 +/-    1.53      13.0 +/-    1.53  0.110 / 0.250
G11     129.1          29.3               11.3 +/-    1.16      20.1 +/-    1.16  0.100 / 0.260
G23     160.1          14.6               10.5 +/-    0.97      26.3 +/-    0.97  0.040 / 0.040
G27     38.7           13.1                5.4 +/-    1.89      13.9 +/-    1.89  0.040 / 0.040
G28     264.9          48.7                7.5 +/-    4.37       9.6 +/-    4.37  0.030 / 0.030
G30     329.1          57.3                6.6 +/-    0.39       7.7 +/-    0.39  0.030 / 0.040