PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-15:58:10
G01     67.6           32.5               10.6 +/-    1.14      17.7 +/-    1.14  0.030 / 0.050
G07     138.9          28.7               11.0 +/-    1.55      19.9 +/-    1.55  0.030 / 0.040
G11     51.7           28.5                8.1 +/-    1.11      14.7 +/-    1.11  0.040 / 0.090
G13     270.8          37.2               11.2 +/-    1.08      17.1 +/-    1.08  0.040 / 0.080
G15     302.2          14.6                7.2 +/-    1.41      18.0 +/-    1.41  0.040 / 0.050
G17     238.6          70.9               12.9 +/-    0.89      13.6 +/-    0.89  0.030 / 0.050
G18     46.8           16.7                7.6 +/-    0.91      18.2 +/-    0.91  0.050 / 0.130
G19     226.1          41.7               14.2 +/-    0.95      20.1 +/-    0.95  0.040 / 0.130
G28     24.1           58.7               11.8 +/-    0.35      13.5 +/-    0.35  0.060 / 0.140
G30     138.3          59.9               11.7 +/-    0.58      13.3 +/-    0.58  0.050 / 0.150