PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-16:58:00
G01     54.8           28.3                8.5 +/-    0.58      15.4 +/-    0.58  0.030 / 0.070
G06     177.8          21.1               -5.6 +/-   41.98     -11.9 +/-   41.98  0.030 / 0.070
G07     144.5          17.5               10.9 +/-    1.98      25.5 +/-    1.98  0.040 / 0.060
G11     46.1           19.3                8.8 +/-    0.93      19.7 +/-    0.93  0.040 / 0.070
G13     256.2          33.1               12.1 +/-    1.30      19.8 +/-    1.30  0.040 / 0.110
G15     290.7          15.6                9.5 +/-    1.79      23.2 +/-    1.79  0.040 / 0.110
G17     280.9          78.1               12.7 +/-    0.77      12.9 +/-    0.77  0.090 / 0.240
G19     238.0          52.8               14.0 +/-    1.35      17.2 +/-    1.35  0.080 / 0.210
G28     44.2           54.9               11.0 +/-    0.44      13.2 +/-    0.44  0.100 / 0.240
G30     147.2          47.3               13.1 +/-    0.85      17.1 +/-    0.85  0.080 / 0.210