PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-19:12:30
G02     221.1          63.7               11.9 +/-    1.14      13.1 +/-    1.14  0.030 / 0.030
G06     47.9           68.1               10.6 +/-    0.51      11.3 +/-    0.51  0.030 / 0.030
G12     320.9          43.6               10.4 +/-    0.65      14.3 +/-    0.65  0.070 / 0.080
G17     61.3           29.6               10.7 +/-    1.58      19.0 +/-    1.58  0.090 / 0.110
G19     42.2           48.1                9.7 +/-    1.24      12.5 +/-    1.24  0.040 / 0.060
G24     257.3          40.3               12.9 +/-    3.60      18.6 +/-    3.60  0.040 / 0.050
G28     125.8          9.9                12.0 +/-    1.74      33.5 +/-    1.74  0.050 / 0.050