PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-17:27:50
G01     109.4          24.3               11.8 +/-    1.04      23.5 +/-    1.04  0.060 / 0.150
G07     102.8          60.3               13.4 +/-    0.75      15.1 +/-    0.75  0.060 / 0.160
G08     42.4           23.8                9.8 +/-    1.05      19.7 +/-    1.05  0.040 / 0.040
G09     175.2          15.6               16.6 +/-    2.14      40.6 +/-    2.14  0.040 / 0.040
G11     93.0           42.8               13.1 +/-    0.79      18.2 +/-    0.79  0.030 / 0.040
G13     311.4          27.1               12.9 +/-    1.58      24.1 +/-    1.58  0.030 / 0.030
G17     205.7          33.1               13.4 +/-    1.97      22.1 +/-    1.97  0.040 / 0.070
G18     83.2           24.0               11.2 +/-    1.15      22.3 +/-    1.15  0.030 / 0.080
G28     313.5          60.6               12.2 +/-    0.73      13.7 +/-    0.73  0.090 / 0.130
G30     16.0           76.9               13.8 +/-    0.87      14.1 +/-    0.87  0.080 / 0.110