PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-16:12:50
G01     60.5           30.7                9.5 +/-    1.39      16.4 +/-    1.39  0.040 / 0.040
G07     142.1          22.7               12.9 +/-    2.06      26.6 +/-    2.06  0.030 / 0.040
G11     48.2           23.7                9.0 +/-    2.10      18.1 +/-    2.10  0.100 / 0.190
G13     262.8          35.4               12.7 +/-    1.62      20.0 +/-    1.62  0.310 / 0.260
G15     296.3          15.4                6.6 +/-    1.72      16.1 +/-    1.72  0.100 / 0.120
G17     257.1          75.8               12.4 +/-    0.46      12.7 +/-    0.46  0.070 / 0.130
G18     42.4           12.9                7.8 +/-    1.93      20.5 +/-    1.93  0.090 / 0.120
G19     231.8          47.6               11.7 +/-    2.18      15.2 +/-    2.18  0.070 / 0.110
G28     35.1           56.8               11.9 +/-    1.09      13.9 +/-    1.09  0.050 / 0.100
G30     143.6          53.3               12.3 +/-    0.67      14.9 +/-    0.67  0.050 / 0.070